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class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#insert-data"><!---->Insert Data<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Load External TsFile Tool" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#load-external-tsfile-tool"><!---->Load External TsFile Tool<!----></a><ul class="vp-sidebar-sub-headers"></ul></li></ul></li><li class="vp-sidebar-sub-header"><a aria-label="DELETE DATA" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#delete-data"><!---->DELETE DATA<!----></a><ul class="vp-sidebar-sub-headers"><li class="vp-sidebar-sub-header"><a aria-label="Delete Single Timeseries" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#delete-single-timeseries"><!---->Delete Single Timeseries<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Delete Multiple Timeseries" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#delete-multiple-timeseries"><!---->Delete Multiple Timeseries<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Delete Time Partition (experimental)" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#delete-time-partition-experimental"><!---->Delete Time Partition (experimental)<!----></a><ul class="vp-sidebar-sub-headers"></ul></li></ul></li><li class="vp-sidebar-sub-header"><a aria-label="QUERY DATA" class="vp-link nav-link vp-sidebar-link vp-heading nav-link 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class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="GROUP BY CLAUSE" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#group-by-clause"><!---->GROUP BY CLAUSE<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="HAVING CLAUSE" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#having-clause"><!---->HAVING CLAUSE<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="FILL CLAUSE" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#fill-clause"><!---->FILL CLAUSE<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="LIMIT and SLIMIT CLAUSES 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vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#into-clause-query-write-back"><!---->INTO CLAUSE (QUERY WRITE-BACK)<!----></a><ul class="vp-sidebar-sub-headers"></ul></li></ul></li><li class="vp-sidebar-sub-header"><a aria-label="OPERATOR" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#operator"><!---->OPERATOR<!----></a><ul class="vp-sidebar-sub-headers"><li class="vp-sidebar-sub-header"><a aria-label="Arithmetic Operators" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#arithmetic-operators"><!---->Arithmetic Operators<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Comparison Operators" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" 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href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#string-processing-functions"><!---->String Processing Functions<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Data Type Conversion Function" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#data-type-conversion-function"><!---->Data Type Conversion Function<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Constant Timeseries Generating Functions" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#constant-timeseries-generating-functions"><!---->Constant Timeseries Generating Functions<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Selector Functions" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#selector-functions"><!---->Selector Functions<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Continuous Interval Functions" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#continuous-interval-functions"><!---->Continuous Interval Functions<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Variation Trend Calculation Functions" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#variation-trend-calculation-functions"><!---->Variation Trend Calculation Functions<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Sample Functions" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#sample-functions"><!---->Sample Functions<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Change Points Function" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#change-points-function"><!---->Change Points Function<!----></a><ul class="vp-sidebar-sub-headers"></ul></li></ul></li><li class="vp-sidebar-sub-header"><a aria-label="DATA QUALITY FUNCTION LIBRARY" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#data-quality-function-library"><!---->DATA QUALITY FUNCTION LIBRARY<!----></a><ul class="vp-sidebar-sub-headers"><li class="vp-sidebar-sub-header"><a aria-label="Data Quality" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#data-quality"><!---->Data Quality<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Data Profiling" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#data-profiling"><!---->Data Profiling<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Anomaly Detection" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#anomaly-detection"><!---->Anomaly Detection<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Frequency Domain" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#frequency-domain"><!---->Frequency Domain<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Data Matching" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#data-matching"><!---->Data Matching<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Data Repairing" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#data-repairing"><!---->Data Repairing<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Series Discovery" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#series-discovery"><!---->Series Discovery<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Machine Learning" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#machine-learning"><!---->Machine Learning<!----></a><ul class="vp-sidebar-sub-headers"></ul></li></ul></li><li class="vp-sidebar-sub-header"><a aria-label="LAMBDA EXPRESSION" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#lambda-expression"><!---->LAMBDA EXPRESSION<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="CONDITIONAL EXPRESSION" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#conditional-expression"><!---->CONDITIONAL EXPRESSION<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="TRIGGER" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#trigger"><!---->TRIGGER<!----></a><ul class="vp-sidebar-sub-headers"><li class="vp-sidebar-sub-header"><a aria-label="Create Trigger" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#create-trigger"><!---->Create Trigger<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Drop Trigger" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#drop-trigger"><!---->Drop Trigger<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Show Trigger" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#show-trigger"><!---->Show Trigger<!----></a><ul class="vp-sidebar-sub-headers"></ul></li></ul></li><li class="vp-sidebar-sub-header"><a aria-label="CONTINUOUS QUERY (CQ)" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#continuous-query-cq"><!---->CONTINUOUS QUERY (CQ)<!----></a><ul class="vp-sidebar-sub-headers"><li class="vp-sidebar-sub-header"><a aria-label="Configuring execution intervals" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#configuring-execution-intervals"><!---->Configuring execution intervals<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Configuring time range for resampling" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#configuring-time-range-for-resampling"><!---->Configuring time range for resampling<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Configuring execution intervals and CQ time ranges" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#configuring-execution-intervals-and-cq-time-ranges"><!---->Configuring execution intervals and CQ time ranges<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Configuring end_time_offset for CQ time range" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#configuring-end-time-offset-for-cq-time-range"><!---->Configuring end_time_offset for CQ time range<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="CQ without group by clause" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#cq-without-group-by-clause"><!---->CQ without group by clause<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="CQ Management" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#cq-management"><!---->CQ Management<!----></a><ul class="vp-sidebar-sub-headers"></ul></li></ul></li><li class="vp-sidebar-sub-header"><a aria-label="USER-DEFINED FUNCTION (UDF)" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#user-defined-function-udf"><!---->USER-DEFINED FUNCTION (UDF)<!----></a><ul class="vp-sidebar-sub-headers"><li class="vp-sidebar-sub-header"><a aria-label="UDF Registration" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#udf-registration"><!---->UDF Registration<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="UDF Deregistration" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#udf-deregistration"><!---->UDF Deregistration<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="UDF Queries" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#udf-queries"><!---->UDF Queries<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Show All Registered UDFs" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#show-all-registered-udfs"><!---->Show All Registered UDFs<!----></a><ul class="vp-sidebar-sub-headers"></ul></li></ul></li><li class="vp-sidebar-sub-header"><a aria-label="ADMINISTRATION MANAGEMENT" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#administration-management"><!---->ADMINISTRATION MANAGEMENT<!----></a><ul class="vp-sidebar-sub-headers"><li class="vp-sidebar-sub-header"><a aria-label="SQL Statements" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#sql-statements"><!---->SQL Statements<!----></a><ul class="vp-sidebar-sub-headers"></ul></li><li class="vp-sidebar-sub-header"><a aria-label="Authorization and Deauthorization" class="vp-link nav-link vp-sidebar-link vp-heading nav-link vp-sidebar-link vp-heading" href="/UserGuide/latest/SQL-Manual/SQL-Manual.html#authorization-and-deauthorization"><!---->Authorization and Deauthorization<!----></a><ul class="vp-sidebar-sub-headers"></ul></li></ul></li></ul><!--]--></li></ul></section></li><li><section class="vp-sidebar-group"><button class="vp-sidebar-heading clickable" type="button"><!----><span class="vp-sidebar-title">FAQ</span><span class="vp-arrow end"></span></button><!----></section></li><li><section class="vp-sidebar-group"><button class="vp-sidebar-heading clickable" type="button"><!----><span class="vp-sidebar-title">Reference</span><span class="vp-arrow end"></span></button><!----></section></li></ul><!--[--><!----><!--]--></aside><!--[--><main id="main-content" class="vp-page"><!--[--><!--[--><!----><!--]--><!----><nav class="vp-breadcrumb disable"></nav><div class="vp-page-title"><h1><!---->SQL Manual</h1><div class="page-info"><!----><!----><span class="page-date-info" aria-label="Writing Date"><svg xmlns="http://www.w3.org/2000/svg" class="icon calendar-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="calendar icon"><path d="M716.4 110.137c0-18.753-14.72-33.473-33.472-33.473-18.753 0-33.473 14.72-33.473 33.473v33.473h66.993v-33.473zm-334.87 0c0-18.753-14.72-33.473-33.473-33.473s-33.52 14.72-33.52 33.473v33.473h66.993v-33.473zm468.81 33.52H716.4v100.465c0 18.753-14.72 33.473-33.472 33.473a33.145 33.145 0 01-33.473-33.473V143.657H381.53v100.465c0 18.753-14.72 33.473-33.473 33.473a33.145 33.145 0 01-33.473-33.473V143.657H180.6A134.314 134.314 0 0046.66 277.595v535.756A134.314 134.314 0 00180.6 947.289h669.74a134.36 134.36 0 00133.94-133.938V277.595a134.314 134.314 0 00-133.94-133.938zm33.473 267.877H147.126a33.145 33.145 0 01-33.473-33.473c0-18.752 14.72-33.473 33.473-33.473h736.687c18.752 0 33.472 14.72 33.472 33.473a33.145 33.145 0 01-33.472 33.473z"></path></svg><span><!----></span><meta property="datePublished" content="2024-03-28T06:33:16.000Z"></span><!----><span 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15.793c0 95.019-73.789 172.82-165.96 177.093z"></path></svg><span>About 23 min</span><meta property="timeRequired" content="PT23M"></span><!----><!----></div><hr></div><div class="toc-place-holder"><aside id="toc"><!--[--><!----><!--]--><div class="toc-header">On This Page<button type="button" class="print-button" title="Print"><svg xmlns="http://www.w3.org/2000/svg" class="icon print-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="print icon"><path d="M819.2 364.8h-44.8V128c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v236.8h-44.8C145.067 364.8 96 413.867 96 473.6v192c0 59.733 49.067 108.8 108.8 108.8h44.8V896c0 17.067 14.933 32 32 32h460.8c17.067 0 32-14.933 32-32V774.4h44.8c59.733 0 108.8-49.067 108.8-108.8v-192c0-59.733-49.067-108.8-108.8-108.8zM313.6 160h396.8v204.8H313.6V160zm396.8 704H313.6V620.8h396.8V864zM864 665.6c0 25.6-19.2 44.8-44.8 44.8h-44.8V588.8c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v121.6h-44.8c-25.6 0-44.8-19.2-44.8-44.8v-192c0-25.6 19.2-44.8 44.8-44.8h614.4c25.6 0 44.8 19.2 44.8 44.8v192z"></path></svg></button></div><div class="toc-wrapper"><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#database-management">DATABASE MANAGEMENT</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#create-database">Create Database</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#show-databases">Show Databases</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#delete-database">Delete Database</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#count-databases">Count Databases</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#setting-up-heterogeneous-databases-advanced-operations">Setting up heterogeneous databases (Advanced operations)</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#ttl">TTL</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#device-template">DEVICE TEMPLATE</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#create-device-template">Create Device Template</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#set-device-template">Set Device Template</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#activate-device-template">Activate Device Template</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#show-device-template">Show Device Template</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#deactivate-device-template">Deactivate Device Template</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#unset-device-template">Unset Device Template</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#drop-device-template">Drop Device Template</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#alter-device-template">Alter Device Template</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#timeseries-management">TIMESERIES MANAGEMENT</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#create-timeseries">Create Timeseries</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#create-aligned-timeseries">Create Aligned Timeseries</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#delete-timeseries">Delete Timeseries</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#show-timeseries">Show Timeseries</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#count-timeseries">Count Timeseries</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#tag-and-attribute-management">Tag and Attribute Management</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#node-management">NODE MANAGEMENT</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#show-child-paths">Show Child Paths</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#show-child-nodes">Show Child Nodes</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#count-nodes">Count Nodes</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#show-devices">Show Devices</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#count-devices">Count Devices</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#insert-load-data">INSERT & LOAD DATA</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#insert-data">Insert Data</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#load-external-tsfile-tool">Load External TsFile Tool</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#delete-data">DELETE DATA</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#delete-single-timeseries">Delete Single Timeseries</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#delete-multiple-timeseries">Delete Multiple Timeseries</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#delete-time-partition-experimental">Delete Time Partition (experimental)</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#query-data">QUERY DATA</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#basic-examples">Basic Examples</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#select-clause">SELECT CLAUSE</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#where-clause">WHERE CLAUSE</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#group-by-clause">GROUP BY CLAUSE</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#having-clause">HAVING CLAUSE</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#fill-clause">FILL CLAUSE</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#limit-and-slimit-clauses-pagination">LIMIT and SLIMIT CLAUSES (PAGINATION)</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#order-by-clause">ORDER BY CLAUSE</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#align-by-clause">ALIGN BY CLAUSE</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#into-clause-query-write-back">INTO CLAUSE (QUERY WRITE-BACK)</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#operator">OPERATOR</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#arithmetic-operators">Arithmetic Operators</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#comparison-operators">Comparison Operators</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#logical-operators">Logical Operators</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#built-in-functions">BUILT-IN FUNCTIONS</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#aggregate-functions">Aggregate Functions</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#arithmetic-functions">Arithmetic Functions</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#comparison-functions">Comparison Functions</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#string-processing-functions">String Processing Functions</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#data-type-conversion-function">Data Type Conversion Function</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#constant-timeseries-generating-functions">Constant Timeseries Generating Functions</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#selector-functions">Selector Functions</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#continuous-interval-functions">Continuous Interval Functions</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#variation-trend-calculation-functions">Variation Trend Calculation Functions</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#sample-functions">Sample Functions</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#change-points-function">Change Points Function</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#data-quality-function-library">DATA QUALITY FUNCTION LIBRARY</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#data-quality">Data Quality</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#data-profiling">Data Profiling</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#anomaly-detection">Anomaly Detection</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#frequency-domain">Frequency Domain</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#data-matching">Data Matching</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#data-repairing">Data Repairing</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#series-discovery">Series Discovery</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#machine-learning">Machine Learning</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#lambda-expression">LAMBDA EXPRESSION</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#conditional-expression">CONDITIONAL EXPRESSION</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#trigger">TRIGGER</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#create-trigger">Create Trigger</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#drop-trigger">Drop Trigger</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#show-trigger">Show Trigger</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#continuous-query-cq">CONTINUOUS QUERY (CQ)</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#configuring-execution-intervals">Configuring execution intervals</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#configuring-time-range-for-resampling">Configuring time range for resampling</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#configuring-execution-intervals-and-cq-time-ranges">Configuring execution intervals and CQ time ranges</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#configuring-end-time-offset-for-cq-time-range">Configuring end_time_offset for CQ time range</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#cq-without-group-by-clause">CQ without group by clause</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#cq-management">CQ Management</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#user-defined-function-udf">USER-DEFINED FUNCTION (UDF)</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#udf-registration">UDF Registration</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#udf-deregistration">UDF Deregistration</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#udf-queries">UDF Queries</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#show-all-registered-udfs">Show All Registered UDFs</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#administration-management">ADMINISTRATION MANAGEMENT</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#sql-statements">SQL Statements</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#authorization-and-deauthorization">Authorization and Deauthorization</a></li><!----><!--]--></ul></li><!--]--></ul><div class="toc-marker" style="top:-1.7rem;"></div></div><!--[--><!----><!--]--></aside></div><!--[--><!----><!--]--><div class="theme-hope-content"><!-- |
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| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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| under the License. |
| |
| --><h1 id="sql-manual" tabindex="-1"><a class="header-anchor" href="#sql-manual" aria-hidden="true">#</a> SQL Manual</h1><h2 id="database-management" tabindex="-1"><a class="header-anchor" href="#database-management" aria-hidden="true">#</a> DATABASE MANAGEMENT</h2><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Operate-Metadata.html" class="">Operate-Metadata</a>.</p><h3 id="create-database" tabindex="-1"><a class="header-anchor" href="#create-database" aria-hidden="true">#</a> Create Database</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">create</span> <span class="token keyword">database</span> root<span class="token punctuation">.</span>ln |
| IoTDB <span class="token operator">></span> <span class="token keyword">create</span> <span class="token keyword">database</span> root<span class="token punctuation">.</span>sgcc |
| IoTDB<span class="token operator">></span> <span class="token keyword">CREATE</span> <span class="token keyword">DATABASE</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01 |
| Msg: <span class="token number">300</span>: root<span class="token punctuation">.</span>ln has already been created <span class="token keyword">as</span> <span class="token keyword">database</span><span class="token punctuation">.</span> |
| IoTDB<span class="token operator">></span> <span class="token keyword">create</span> <span class="token keyword">database</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01 |
| Msg: <span class="token number">300</span>: root<span class="token punctuation">.</span>ln has already been created <span class="token keyword">as</span> <span class="token keyword">database</span><span class="token punctuation">.</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="show-databases" tabindex="-1"><a class="header-anchor" href="#show-databases" aria-hidden="true">#</a> Show Databases</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">SHOW</span> <span class="token keyword">DATABASES</span> |
| IoTDB<span class="token operator">></span> <span class="token keyword">SHOW</span> <span class="token keyword">DATABASES</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="delete-database" tabindex="-1"><a class="header-anchor" href="#delete-database" aria-hidden="true">#</a> Delete Database</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">DELETE</span> <span class="token keyword">DATABASE</span> root<span class="token punctuation">.</span>ln |
| IoTDB <span class="token operator">></span> <span class="token keyword">DELETE</span> <span class="token keyword">DATABASE</span> root<span class="token punctuation">.</span>sgcc |
| <span class="token comment">// delete all data, all timeseries and all databases</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">DELETE</span> <span class="token keyword">DATABASE</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="count-databases" tabindex="-1"><a class="header-anchor" href="#count-databases" aria-hidden="true">#</a> Count Databases</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> count <span class="token keyword">databases</span> |
| IoTDB<span class="token operator">></span> count <span class="token keyword">databases</span> root<span class="token punctuation">.</span><span class="token operator">*</span> |
| IoTDB<span class="token operator">></span> count <span class="token keyword">databases</span> root<span class="token punctuation">.</span>sgcc<span class="token punctuation">.</span><span class="token operator">*</span> |
| IoTDB<span class="token operator">></span> count <span class="token keyword">databases</span> root<span class="token punctuation">.</span>sgcc |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="setting-up-heterogeneous-databases-advanced-operations" tabindex="-1"><a class="header-anchor" href="#setting-up-heterogeneous-databases-advanced-operations" aria-hidden="true">#</a> Setting up heterogeneous databases (Advanced operations)</h3><h4 id="set-heterogeneous-parameters-when-creating-a-database" tabindex="-1"><a class="header-anchor" href="#set-heterogeneous-parameters-when-creating-a-database" aria-hidden="true">#</a> Set heterogeneous parameters when creating a Database</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">CREATE</span> <span class="token keyword">DATABASE</span> root<span class="token punctuation">.</span>db <span class="token keyword">WITH</span> SCHEMA_REPLICATION_FACTOR<span class="token operator">=</span><span class="token number">1</span><span class="token punctuation">,</span> DATA_REPLICATION_FACTOR<span class="token operator">=</span><span class="token number">3</span><span class="token punctuation">,</span> SCHEMA_REGION_GROUP_NUM<span class="token operator">=</span><span class="token number">1</span><span class="token punctuation">,</span> DATA_REGION_GROUP_NUM<span class="token operator">=</span><span class="token number">2</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="adjust-heterogeneous-parameters-at-run-time" tabindex="-1"><a class="header-anchor" href="#adjust-heterogeneous-parameters-at-run-time" aria-hidden="true">#</a> Adjust heterogeneous parameters at run time</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">ALTER</span> <span class="token keyword">DATABASE</span> root<span class="token punctuation">.</span>db <span class="token keyword">WITH</span> SCHEMA_REGION_GROUP_NUM<span class="token operator">=</span><span class="token number">1</span><span class="token punctuation">,</span> DATA_REGION_GROUP_NUM<span class="token operator">=</span><span class="token number">2</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="show-heterogeneous-databases" tabindex="-1"><a class="header-anchor" href="#show-heterogeneous-databases" aria-hidden="true">#</a> Show heterogeneous databases</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">SHOW</span> <span class="token keyword">DATABASES</span> DETAILS |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="ttl" tabindex="-1"><a class="header-anchor" href="#ttl" aria-hidden="true">#</a> TTL</h3><h4 id="set-ttl" tabindex="-1"><a class="header-anchor" href="#set-ttl" aria-hidden="true">#</a> Set TTL</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">set</span> ttl <span class="token keyword">to</span> root<span class="token punctuation">.</span>ln <span class="token number">3600000</span> |
| IoTDB<span class="token operator">></span> <span class="token keyword">set</span> ttl <span class="token keyword">to</span> root<span class="token punctuation">.</span>sgcc<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token number">3600000</span> |
| IoTDB<span class="token operator">></span> <span class="token keyword">set</span> ttl <span class="token keyword">to</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token number">3600000</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="unset-ttl" tabindex="-1"><a class="header-anchor" href="#unset-ttl" aria-hidden="true">#</a> Unset TTL</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> unset ttl <span class="token keyword">to</span> root<span class="token punctuation">.</span>ln |
| IoTDB<span class="token operator">></span> unset ttl <span class="token keyword">to</span> root<span class="token punctuation">.</span>sgcc<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> |
| IoTDB<span class="token operator">></span> unset ttl <span class="token keyword">to</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="show-ttl" tabindex="-1"><a class="header-anchor" href="#show-ttl" aria-hidden="true">#</a> Show TTL</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">SHOW</span> <span class="token keyword">ALL</span> TTL |
| IoTDB<span class="token operator">></span> <span class="token keyword">SHOW</span> TTL <span class="token keyword">ON</span> StorageGroupNames |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="device-template" tabindex="-1"><a class="header-anchor" href="#device-template" aria-hidden="true">#</a> DEVICE TEMPLATE</h2><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Operate-Metadata.html" class="">Operate-Metadata</a>.</p><figure><img src="https://alioss.timecho.com/docs/img/模板.png" alt="img" tabindex="0" loading="lazy"><figcaption>img</figcaption></figure><p>Create template(s1 int, s2 float) on <a href="http://root.sg" target="_blank" rel="noopener noreferrer">root.sg<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></p><p>Create device root.sg.d1</p><figure><img src="https://alioss.timecho.com/docs/img/模板流程.png" alt="img" tabindex="0" loading="lazy"><figcaption>img</figcaption></figure><h3 id="create-device-template" tabindex="-1"><a class="header-anchor" href="#create-device-template" aria-hidden="true">#</a> Create Device Template</h3><p><strong>Example 1:</strong> Create a template containing two non-aligned timeseires</p><div class="language-bash line-numbers-mode" data-ext="sh"><pre class="language-bash"><code>IoTDB<span class="token operator">></span> create device template t1 <span class="token punctuation">(</span>temperature FLOAT <span class="token assign-left variable">encoding</span><span class="token operator">=</span>RLE, status BOOLEAN <span class="token assign-left variable">encoding</span><span class="token operator">=</span>PLAIN <span class="token assign-left variable">compression</span><span class="token operator">=</span>SNAPPY<span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p><strong>Example 2:</strong> Create a template containing a group of aligned timeseires</p><div class="language-bash line-numbers-mode" data-ext="sh"><pre class="language-bash"><code>IoTDB<span class="token operator">></span> create device template t2 aligned <span class="token punctuation">(</span>lat FLOAT <span class="token assign-left variable">encoding</span><span class="token operator">=</span>Gorilla, lon FLOAT <span class="token assign-left variable">encoding</span><span class="token operator">=</span>Gorilla<span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>The<code> lat</code> and <code>lon</code> measurements are aligned.</p><h3 id="set-device-template" tabindex="-1"><a class="header-anchor" href="#set-device-template" aria-hidden="true">#</a> Set Device Template</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">set</span> device template t1 <span class="token keyword">to</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="activate-device-template" tabindex="-1"><a class="header-anchor" href="#activate-device-template" aria-hidden="true">#</a> Activate Device Template</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">set</span> device template t1 <span class="token keyword">to</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| IoTDB<span class="token operator">></span> <span class="token keyword">set</span> device template t2 <span class="token keyword">to</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d2 |
| IoTDB<span class="token operator">></span> <span class="token keyword">create</span> timeseries <span class="token keyword">using</span> device template <span class="token keyword">on</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| IoTDB<span class="token operator">></span> <span class="token keyword">create</span> timeseries <span class="token keyword">using</span> device template <span class="token keyword">on</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d2 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="show-device-template" tabindex="-1"><a class="header-anchor" href="#show-device-template" aria-hidden="true">#</a> Show Device Template</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">show</span> device templates |
| IoTDB<span class="token operator">></span> <span class="token keyword">show</span> nodes <span class="token operator">in</span> device template t1 |
| IoTDB<span class="token operator">></span> <span class="token keyword">show</span> paths <span class="token keyword">set</span> device template t1 |
| IoTDB<span class="token operator">></span> <span class="token keyword">show</span> paths <span class="token keyword">using</span> device template t1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="deactivate-device-template" tabindex="-1"><a class="header-anchor" href="#deactivate-device-template" aria-hidden="true">#</a> Deactivate Device Template</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">delete</span> timeseries <span class="token keyword">of</span> device template t1 <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| IoTDB<span class="token operator">></span> deactivate device template t1 <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| IoTDB<span class="token operator">></span> <span class="token keyword">delete</span> timeseries <span class="token keyword">of</span> device template t1 <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span><span class="token operator">*</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg2<span class="token punctuation">.</span><span class="token operator">*</span> |
| IoTDB<span class="token operator">></span> deactivate device template t1 <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span><span class="token operator">*</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg2<span class="token punctuation">.</span><span class="token operator">*</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="unset-device-template" tabindex="-1"><a class="header-anchor" href="#unset-device-template" aria-hidden="true">#</a> Unset Device Template</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> unset device template t1 <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="drop-device-template" tabindex="-1"><a class="header-anchor" href="#drop-device-template" aria-hidden="true">#</a> Drop Device Template</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">drop</span> device template t1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="alter-device-template" tabindex="-1"><a class="header-anchor" href="#alter-device-template" aria-hidden="true">#</a> Alter Device Template</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">alter</span> device template t1 <span class="token keyword">add</span> <span class="token punctuation">(</span>speed <span class="token keyword">FLOAT</span> encoding<span class="token operator">=</span>RLE<span class="token punctuation">,</span> <span class="token keyword">FLOAT</span> <span class="token keyword">TEXT</span> encoding<span class="token operator">=</span>PLAIN compression<span class="token operator">=</span>SNAPPY<span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h2 id="timeseries-management" tabindex="-1"><a class="header-anchor" href="#timeseries-management" aria-hidden="true">#</a> TIMESERIES MANAGEMENT</h2><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Operate-Metadata.html" class="">Operate-Metadata</a>.</p><h3 id="create-timeseries" tabindex="-1"><a class="header-anchor" href="#create-timeseries" aria-hidden="true">#</a> Create Timeseries</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">BOOLEAN</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>PLAIN |
| IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span>temperature <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">FLOAT</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>RLE |
| IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span>hardware <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">TEXT</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>PLAIN |
| IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">BOOLEAN</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>PLAIN |
| IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>sgcc<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">BOOLEAN</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>PLAIN |
| IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>sgcc<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span>temperature <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">FLOAT</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>RLE |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>From v0.13, you can use a simplified version of the SQL statements to create timeseries:</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">BOOLEAN</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>PLAIN |
| IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span>temperature <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">FLOAT</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>RLE |
| IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span>hardware <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">TEXT</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>PLAIN |
| IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">BOOLEAN</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>PLAIN |
| IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>sgcc<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">BOOLEAN</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>PLAIN |
| IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>sgcc<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span>temperature <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">FLOAT</span><span class="token punctuation">,</span>encoding<span class="token operator">=</span>RLE |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Notice that when in the CREATE TIMESERIES statement the encoding method conflicts with the data type, the system gives the corresponding error prompt as shown below:</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">WITH</span> DATATYPE<span class="token operator">=</span><span class="token keyword">BOOLEAN</span><span class="token punctuation">,</span> ENCODING<span class="token operator">=</span>TS_2DIFF |
| error: encoding TS_2DIFF does <span class="token operator">not</span> support <span class="token keyword">BOOLEAN</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="create-aligned-timeseries" tabindex="-1"><a class="header-anchor" href="#create-aligned-timeseries" aria-hidden="true">#</a> Create Aligned Timeseries</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">CREATE</span> ALIGNED TIMESERIES root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>GPS<span class="token punctuation">(</span>latitude <span class="token keyword">FLOAT</span> encoding<span class="token operator">=</span>PLAIN compressor<span class="token operator">=</span>SNAPPY<span class="token punctuation">,</span> longitude <span class="token keyword">FLOAT</span> encoding<span class="token operator">=</span>PLAIN compressor<span class="token operator">=</span>SNAPPY<span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="delete-timeseries" tabindex="-1"><a class="header-anchor" href="#delete-timeseries" aria-hidden="true">#</a> Delete Timeseries</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">delete</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span><span class="token keyword">status</span> |
| IoTDB<span class="token operator">></span> <span class="token keyword">delete</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span>temperature<span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span>hardware |
| IoTDB<span class="token operator">></span> <span class="token keyword">delete</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span><span class="token operator">*</span> |
| IoTDB<span class="token operator">></span> <span class="token keyword">drop</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span><span class="token operator">*</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="show-timeseries" tabindex="-1"><a class="header-anchor" href="#show-timeseries" aria-hidden="true">#</a> Show Timeseries</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB<span class="token operator">></span> <span class="token keyword">show</span> timeseries root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> |
| IoTDB<span class="token operator">></span> <span class="token keyword">show</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> |
| IoTDB<span class="token operator">></span> <span class="token keyword">show</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">limit</span> <span class="token number">10</span> <span class="token keyword">offset</span> <span class="token number">10</span> |
| IoTDB<span class="token operator">></span> <span class="token keyword">show</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">where</span> timeseries <span class="token keyword">contains</span> <span class="token string">'wf01.wt'</span> |
| IoTDB<span class="token operator">></span> <span class="token keyword">show</span> timeseries root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">where</span> dataType<span class="token operator">=</span><span class="token keyword">FLOAT</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="count-timeseries" tabindex="-1"><a class="header-anchor" href="#count-timeseries" aria-hidden="true">#</a> Count Timeseries</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> |
| IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> |
| IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token punctuation">.</span><span class="token operator">*</span><span class="token punctuation">.</span><span class="token keyword">status</span> |
| IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span><span class="token keyword">status</span> |
| IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">WHERE</span> TIMESERIES <span class="token keyword">contains</span> <span class="token string">'sgcc'</span> |
| IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">WHERE</span> DATATYPE <span class="token operator">=</span> INT64 |
| IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">WHERE</span> TAGS<span class="token punctuation">(</span>unit<span class="token punctuation">)</span> <span class="token keyword">contains</span> <span class="token string">'c'</span> |
| IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">WHERE</span> TAGS<span class="token punctuation">(</span>unit<span class="token punctuation">)</span> <span class="token operator">=</span> <span class="token string">'c'</span> |
| IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">WHERE</span> TIMESERIES <span class="token keyword">contains</span> <span class="token string">'sgcc'</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token keyword">level</span> <span class="token operator">=</span> <span class="token number">1</span> |
| IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">GROUP</span> <span class="token keyword">BY</span> <span class="token keyword">LEVEL</span><span class="token operator">=</span><span class="token number">1</span> |
| IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">GROUP</span> <span class="token keyword">BY</span> <span class="token keyword">LEVEL</span><span class="token operator">=</span><span class="token number">2</span> |
| IoTDB <span class="token operator">></span> COUNT TIMESERIES root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span><span class="token operator">*</span> <span class="token keyword">GROUP</span> <span class="token keyword">BY</span> <span class="token keyword">LEVEL</span><span class="token operator">=</span><span class="token number">2</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="tag-and-attribute-management" tabindex="-1"><a class="header-anchor" href="#tag-and-attribute-management" aria-hidden="true">#</a> Tag and Attribute Management</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">create</span> timeseries root<span class="token punctuation">.</span>turbine<span class="token punctuation">.</span>d1<span class="token punctuation">.</span>s1<span class="token punctuation">(</span>temprature<span class="token punctuation">)</span> <span class="token keyword">with</span> datatype<span class="token operator">=</span><span class="token keyword">FLOAT</span><span class="token punctuation">,</span> encoding<span class="token operator">=</span>RLE<span class="token punctuation">,</span> compression<span class="token operator">=</span>SNAPPY tags<span class="token punctuation">(</span>tag1<span class="token operator">=</span>v1<span class="token punctuation">,</span> tag2<span class="token operator">=</span>v2<span class="token punctuation">)</span> attributes<span class="token punctuation">(</span>attr1<span class="token operator">=</span>v1<span class="token punctuation">,</span> attr2<span class="token operator">=</span>v2<span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Rename the tag/attribute key</li></ul><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>ALTER timeseries root.turbine.d1.s1 RENAME tag1 TO newTag1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Reset the tag/attribute value</li></ul><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>ALTER timeseries root.turbine.d1.s1 SET newTag1=newV1, attr1=newV1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Delete the existing tag/attribute</li></ul><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>ALTER timeseries root.turbine.d1.s1 DROP tag1, tag2 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Add new tags</li></ul><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>ALTER timeseries root.turbine.d1.s1 ADD TAGS tag3=v3, tag4=v4 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Add new attributes</li></ul><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>ALTER timeseries root.turbine.d1.s1 ADD ATTRIBUTES attr3=v3, attr4=v4 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Upsert alias, tags and attributes</li></ul><blockquote><p>add alias or a new key-value if the alias or key doesn't exist, otherwise, update the old one with new value.</p></blockquote><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>ALTER timeseries root.turbine.d1.s1 UPSERT ALIAS=newAlias TAGS(tag3=v3, tag4=v4) ATTRIBUTES(attr3=v3, attr4=v4) |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Show timeseries using tags. Use TAGS(tagKey) to identify the tags used as filter key</li></ul><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>SHOW TIMESERIES (<`PathPattern`>)? timeseriesWhereClause |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>returns all the timeseries information that satisfy the where condition and match the pathPattern. SQL statements are as follows:</p><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>ALTER timeseries root.ln.wf02.wt02.hardware ADD TAGS unit=c |
| ALTER timeseries root.ln.wf02.wt02.status ADD TAGS description=test1 |
| show timeseries root.ln.** where TAGS(unit)='c' |
| show timeseries root.ln.** where TAGS(description) contains 'test1' |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>count timeseries using tags</li></ul><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>COUNT TIMESERIES (<`PathPattern`>)? timeseriesWhereClause |
| COUNT TIMESERIES (<`PathPattern`>)? timeseriesWhereClause GROUP BY LEVEL=<INTEGER> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><p>returns all the number of timeseries that satisfy the where condition and match the pathPattern. SQL statements are as follows:</p><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>count timeseries |
| count timeseries root.** where TAGS(unit)='c' |
| count timeseries root.** where TAGS(unit)='c' group by level = 2 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>create aligned timeseries</p><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>create aligned timeseries root.sg1.d1(s1 INT32 tags(tag1=v1, tag2=v2) attributes(attr1=v1, attr2=v2), s2 DOUBLE tags(tag3=v3, tag4=v4) attributes(attr3=v3, attr4=v4)) |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>The execution result is as follows:</p><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>IoTDB> show timeseries |
| +--------------+-----+-------------+--------+--------+-----------+-------------------------+---------------------------+--------+-------------------+ |
| | timeseries|alias| database|dataType|encoding|compression| tags| attributes|deadband|deadband parameters| |
| +--------------+-----+-------------+--------+--------+-----------+-------------------------+---------------------------+--------+-------------------+ |
| |root.sg1.d1.s1| null| root.sg1| INT32| RLE| SNAPPY|{"tag1":"v1","tag2":"v2"}|{"attr2":"v2","attr1":"v1"}| null| null| |
| |root.sg1.d1.s2| null| root.sg1| DOUBLE| GORILLA| SNAPPY|{"tag4":"v4","tag3":"v3"}|{"attr4":"v4","attr3":"v3"}| null| null| |
| +--------------+-----+-------------+--------+--------+-----------+-------------------------+---------------------------+--------+-------------------+ |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>Support query：</p><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>IoTDB> show timeseries where TAGS(tag1)='v1' |
| +--------------+-----+-------------+--------+--------+-----------+-------------------------+---------------------------+--------+-------------------+ |
| | timeseries|alias| database|dataType|encoding|compression| tags| attributes|deadband|deadband parameters| |
| +--------------+-----+-------------+--------+--------+-----------+-------------------------+---------------------------+--------+-------------------+ |
| |root.sg1.d1.s1| null| root.sg1| INT32| RLE| SNAPPY|{"tag1":"v1","tag2":"v2"}|{"attr2":"v2","attr1":"v1"}| null| null| |
| +--------------+-----+-------------+--------+--------+-----------+-------------------------+---------------------------+--------+-------------------+ |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>The above operations are supported for timeseries tag, attribute updates, etc.</p><h2 id="node-management" tabindex="-1"><a class="header-anchor" href="#node-management" aria-hidden="true">#</a> NODE MANAGEMENT</h2><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Operate-Metadata.html" class="">Operate-Metadata</a>.</p><h3 id="show-child-paths" tabindex="-1"><a class="header-anchor" href="#show-child-paths" aria-hidden="true">#</a> Show Child Paths</h3><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>SHOW CHILD PATHS pathPattern |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="show-child-nodes" tabindex="-1"><a class="header-anchor" href="#show-child-nodes" aria-hidden="true">#</a> Show Child Nodes</h3><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>SHOW CHILD NODES pathPattern |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="count-nodes" tabindex="-1"><a class="header-anchor" href="#count-nodes" aria-hidden="true">#</a> Count Nodes</h3><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>IoTDB > COUNT NODES root.** LEVEL=2 |
| IoTDB > COUNT NODES root.ln.** LEVEL=2 |
| IoTDB > COUNT NODES root.ln.wf01.** LEVEL=3 |
| IoTDB > COUNT NODES root.**.temperature LEVEL=3 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="show-devices" tabindex="-1"><a class="header-anchor" href="#show-devices" aria-hidden="true">#</a> Show Devices</h3><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>IoTDB> show devices |
| IoTDB> show devices root.ln.** |
| IoTDB> show devices root.ln.** where device contains 't' |
| IoTDB> show devices with database |
| IoTDB> show devices root.ln.** with database |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="count-devices" tabindex="-1"><a class="header-anchor" href="#count-devices" aria-hidden="true">#</a> Count Devices</h3><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>IoTDB> show devices |
| IoTDB> count devices |
| IoTDB> count devices root.ln.** |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="insert-load-data" tabindex="-1"><a class="header-anchor" href="#insert-load-data" aria-hidden="true">#</a> INSERT & LOAD DATA</h2><h3 id="insert-data" tabindex="-1"><a class="header-anchor" href="#insert-data" aria-hidden="true">#</a> Insert Data</h3><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Write-Delete-Data.html" class="">Write-Delete-Data</a>.</p><h4 id="use-of-insert-statements" tabindex="-1"><a class="header-anchor" href="#use-of-insert-statements" aria-hidden="true">#</a> Use of INSERT Statements</h4><ul><li>Insert Single Timeseries</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">insert</span> <span class="token keyword">into</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span><span class="token keyword">timestamp</span><span class="token punctuation">,</span><span class="token keyword">status</span><span class="token punctuation">)</span> <span class="token keyword">values</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token boolean">true</span><span class="token punctuation">)</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">insert</span> <span class="token keyword">into</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span><span class="token keyword">timestamp</span><span class="token punctuation">,</span>hardware<span class="token punctuation">)</span> <span class="token keyword">values</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token string">'v1'</span><span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Insert Multiple Timeseries</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">insert</span> <span class="token keyword">into</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span><span class="token keyword">timestamp</span><span class="token punctuation">,</span> <span class="token keyword">status</span><span class="token punctuation">,</span> hardware<span class="token punctuation">)</span> <span class="token keyword">VALUES</span> <span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span> <span class="token boolean">false</span><span class="token punctuation">,</span> <span class="token string">'v2'</span><span class="token punctuation">)</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">insert</span> <span class="token keyword">into</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span><span class="token keyword">timestamp</span><span class="token punctuation">,</span> <span class="token keyword">status</span><span class="token punctuation">,</span> hardware<span class="token punctuation">)</span> <span class="token keyword">VALUES</span> <span class="token punctuation">(</span><span class="token number">3</span><span class="token punctuation">,</span> <span class="token boolean">false</span><span class="token punctuation">,</span> <span class="token string">'v3'</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token punctuation">(</span><span class="token number">4</span><span class="token punctuation">,</span> <span class="token boolean">true</span><span class="token punctuation">,</span> <span class="token string">'v4'</span><span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Use the Current System Timestamp as the Timestamp of the Data Point</li></ul><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>IoTDB > insert into root.ln.wf02.wt02(status, hardware) values (false, 'v2') |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="insert-data-into-aligned-timeseries" tabindex="-1"><a class="header-anchor" href="#insert-data-into-aligned-timeseries" aria-hidden="true">#</a> Insert Data Into Aligned Timeseries</h4><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>IoTDB > create aligned timeseries root.sg1.d1(s1 INT32, s2 DOUBLE) |
| IoTDB > insert into root.sg1.d1(time, s1, s2) aligned values(1, 1, 1) |
| IoTDB > insert into root.sg1.d1(time, s1, s2) aligned values(2, 2, 2), (3, 3, 3) |
| IoTDB > select * from root.sg1.d1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="load-external-tsfile-tool" tabindex="-1"><a class="header-anchor" href="#load-external-tsfile-tool" aria-hidden="true">#</a> Load External TsFile Tool</h3><p>For more details, see document <a href="/UserGuide/latest/Tools-System/Import-Export-Tool.html" class="">Import-Export-Tool</a>.</p><h4 id="load-with-sql" tabindex="-1"><a class="header-anchor" href="#load-with-sql" aria-hidden="true">#</a> Load with SQL</h4><ol><li>Load a single tsfile by specifying a file path (absolute path).</li></ol><ul><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile'</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=true</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=false</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' sglevel=1</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' onSuccess=delete</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=true sglevel=1</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=false sglevel=1</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=true onSuccess=none</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=false sglevel=1 onSuccess=delete</code></li></ul><ol start="2"><li>Load a batch of files by specifying a folder path (absolute path).</li></ol><ul><li><code>load '/Users/Desktop/data'</code></li><li><code>load '/Users/Desktop/data' verify=false</code></li><li><code>load '/Users/Desktop/data' verify=true</code></li><li><code>load '/Users/Desktop/data' verify=true sglevel=1</code></li><li><code>load '/Users/Desktop/data' verify=false sglevel=1 onSuccess=delete</code></li></ul><h4 id="load-with-script" tabindex="-1"><a class="header-anchor" href="#load-with-script" aria-hidden="true">#</a> Load with Script</h4><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>./load-rewrite.bat -f D:\IoTDB\data -h 192.168.0.101 -p 6667 -u root -pw root |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h2 id="delete-data" tabindex="-1"><a class="header-anchor" href="#delete-data" aria-hidden="true">#</a> DELETE DATA</h2><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Write-Delete-Data.html" class="">Write-Delete-Data</a>.</p><h3 id="delete-single-timeseries" tabindex="-1"><a class="header-anchor" href="#delete-single-timeseries" aria-hidden="true">#</a> Delete Single Timeseries</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">where</span> <span class="token keyword">time</span><span class="token operator"><=</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">26</span>:<span class="token number">00</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">where</span> <span class="token keyword">time</span><span class="token operator">>=</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">00</span>:<span class="token number">00</span> <span class="token operator">and</span> <span class="token keyword">time</span><span class="token operator"><=</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">26</span>:<span class="token number">00</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><</span> <span class="token number">10</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">10</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><</span> <span class="token number">20</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">10</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">20</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator">>=</span> <span class="token number">10</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">20</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">>=</span> <span class="token number">20</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">=</span> <span class="token number">20</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">4</span> <span class="token operator">or</span> <span class="token keyword">time</span> <span class="token operator"><</span> <span class="token number">0</span> |
| Msg: <span class="token number">303</span>: <span class="token keyword">Check</span> metadata error: <span class="token keyword">For</span> <span class="token keyword">delete</span> statement<span class="token punctuation">,</span> <span class="token keyword">where</span> clause can only contain atomic |
| expressions <span class="token operator">like</span> : <span class="token keyword">time</span> <span class="token operator">></span> XXX<span class="token punctuation">,</span> <span class="token keyword">time</span> <span class="token operator"><=</span> XXX<span class="token punctuation">,</span> <span class="token operator">or</span> two atomic expressions connected <span class="token keyword">by</span> <span class="token string">'AND'</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="delete-multiple-timeseries" tabindex="-1"><a class="header-anchor" href="#delete-multiple-timeseries" aria-hidden="true">#</a> Delete Multiple Timeseries</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">26</span>:<span class="token number">00</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token operator">*</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">26</span>:<span class="token number">00</span><span class="token punctuation">;</span> |
| IoTDB<span class="token operator">></span> <span class="token keyword">delete</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><</span> <span class="token function">now</span><span class="token punctuation">(</span><span class="token punctuation">)</span> |
| Msg: The statement <span class="token operator">is</span> executed successfully<span class="token punctuation">.</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="delete-time-partition-experimental" tabindex="-1"><a class="header-anchor" href="#delete-time-partition-experimental" aria-hidden="true">#</a> Delete Time Partition (experimental)</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">DELETE</span> <span class="token keyword">PARTITION</span> root<span class="token punctuation">.</span>ln <span class="token number">0</span><span class="token punctuation">,</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h2 id="query-data" tabindex="-1"><a class="header-anchor" href="#query-data" aria-hidden="true">#</a> QUERY DATA</h2><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Query-Data.html" class="">Query-Data</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">SELECT</span> <span class="token punctuation">[</span><span class="token keyword">LAST</span><span class="token punctuation">]</span> selectExpr <span class="token punctuation">[</span><span class="token punctuation">,</span> selectExpr<span class="token punctuation">]</span> <span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">.</span> |
| <span class="token punctuation">[</span><span class="token keyword">INTO</span> intoItem <span class="token punctuation">[</span><span class="token punctuation">,</span> intoItem<span class="token punctuation">]</span> <span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">]</span> |
| <span class="token keyword">FROM</span> prefixPath <span class="token punctuation">[</span><span class="token punctuation">,</span> prefixPath<span class="token punctuation">]</span> <span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">.</span> |
| <span class="token punctuation">[</span><span class="token keyword">WHERE</span> whereCondition<span class="token punctuation">]</span> |
| <span class="token punctuation">[</span><span class="token keyword">GROUP</span> <span class="token keyword">BY</span> { |
| <span class="token punctuation">(</span><span class="token punctuation">[</span>startTime<span class="token punctuation">,</span> endTime<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">interval</span> <span class="token punctuation">[</span><span class="token punctuation">,</span> slidingStep<span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token operator">|</span> |
| <span class="token keyword">LEVEL</span> <span class="token operator">=</span> levelNum <span class="token punctuation">[</span><span class="token punctuation">,</span> levelNum<span class="token punctuation">]</span> <span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">.</span> <span class="token operator">|</span> |
| TAGS<span class="token punctuation">(</span>tagKey <span class="token punctuation">[</span><span class="token punctuation">,</span> tagKey<span class="token punctuation">]</span> <span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">.</span> <span class="token punctuation">)</span> <span class="token operator">|</span> |
| VARIATION<span class="token punctuation">(</span>expression<span class="token punctuation">[</span><span class="token punctuation">,</span>delta<span class="token punctuation">]</span><span class="token punctuation">[</span><span class="token punctuation">,</span>ignoreNull<span class="token operator">=</span><span class="token boolean">true</span><span class="token operator">/</span><span class="token boolean">false</span><span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token operator">|</span> |
| CONDITION<span class="token punctuation">(</span>expression<span class="token punctuation">,</span><span class="token punctuation">[</span>keep<span class="token operator">></span><span class="token operator">/</span><span class="token operator">>=</span><span class="token operator">/</span><span class="token operator">=</span><span class="token operator">/</span><span class="token operator"><</span><span class="token operator">/</span><span class="token operator"><=</span><span class="token punctuation">]</span>threshold<span class="token punctuation">[</span><span class="token punctuation">,</span>ignoreNull<span class="token operator">=</span><span class="token boolean">true</span><span class="token operator">/</span><span class="token boolean">false</span><span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token operator">|</span> |
| <span class="token keyword">SESSION</span><span class="token punctuation">(</span>timeInterval<span class="token punctuation">)</span> <span class="token operator">|</span> |
| <span class="token function">COUNT</span><span class="token punctuation">(</span>expression<span class="token punctuation">,</span> size<span class="token punctuation">[</span><span class="token punctuation">,</span>ignoreNull<span class="token operator">=</span><span class="token boolean">true</span><span class="token operator">/</span><span class="token boolean">false</span><span class="token punctuation">]</span><span class="token punctuation">)</span> |
| }<span class="token punctuation">]</span> |
| <span class="token punctuation">[</span><span class="token keyword">HAVING</span> havingCondition<span class="token punctuation">]</span> |
| <span class="token punctuation">[</span><span class="token keyword">ORDER</span> <span class="token keyword">BY</span> sortKey {<span class="token keyword">ASC</span> <span class="token operator">|</span> <span class="token keyword">DESC</span>}<span class="token punctuation">]</span> |
| <span class="token punctuation">[</span>FILL <span class="token punctuation">(</span>{PREVIOUS <span class="token operator">|</span> LINEAR <span class="token operator">|</span> constant}<span class="token punctuation">)</span><span class="token punctuation">]</span> |
| <span class="token punctuation">[</span>SLIMIT seriesLimit<span class="token punctuation">]</span> <span class="token punctuation">[</span>SOFFSET seriesOffset<span class="token punctuation">]</span> |
| <span class="token punctuation">[</span><span class="token keyword">LIMIT</span> rowLimit<span class="token punctuation">]</span> <span class="token punctuation">[</span><span class="token keyword">OFFSET</span> rowOffset<span class="token punctuation">]</span> |
| <span class="token punctuation">[</span>ALIGN <span class="token keyword">BY</span> {<span class="token keyword">TIME</span> <span class="token operator">|</span> DEVICE}<span class="token punctuation">]</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="basic-examples" tabindex="-1"><a class="header-anchor" href="#basic-examples" aria-hidden="true">#</a> Basic Examples</h3><h4 id="select-a-column-of-data-based-on-a-time-interval" tabindex="-1"><a class="header-anchor" href="#select-a-column-of-data-based-on-a-time-interval" aria-hidden="true">#</a> Select a Column of Data Based on a Time Interval</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">08</span>:<span class="token number">00.000</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="select-multiple-columns-of-data-based-on-a-time-interval" tabindex="-1"><a class="header-anchor" href="#select-multiple-columns-of-data-based-on-a-time-interval" aria-hidden="true">#</a> Select Multiple Columns of Data Based on a Time Interval</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token keyword">status</span><span class="token punctuation">,</span> temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">05</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">12</span>:<span class="token number">00.000</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="select-multiple-columns-of-data-for-the-same-device-according-to-multiple-time-intervals" tabindex="-1"><a class="header-anchor" href="#select-multiple-columns-of-data-for-the-same-device-according-to-multiple-time-intervals" aria-hidden="true">#</a> Select Multiple Columns of Data for the Same Device According to Multiple Time Intervals</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token keyword">status</span><span class="token punctuation">,</span>temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">where</span> <span class="token punctuation">(</span><span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">05</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">12</span>:<span class="token number">00.000</span><span class="token punctuation">)</span> <span class="token operator">or</span> <span class="token punctuation">(</span><span class="token keyword">time</span> <span class="token operator">>=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">35</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">37</span>:<span class="token number">00.000</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="choose-multiple-columns-of-data-for-different-devices-according-to-multiple-time-intervals" tabindex="-1"><a class="header-anchor" href="#choose-multiple-columns-of-data-for-different-devices-according-to-multiple-time-intervals" aria-hidden="true">#</a> Choose Multiple Columns of Data for Different Devices According to Multiple Time Intervals</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span><span class="token keyword">status</span><span class="token punctuation">,</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span>hardware <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln <span class="token keyword">where</span> <span class="token punctuation">(</span><span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">05</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">12</span>:<span class="token number">00.000</span><span class="token punctuation">)</span> <span class="token operator">or</span> <span class="token punctuation">(</span><span class="token keyword">time</span> <span class="token operator">>=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">35</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">37</span>:<span class="token number">00.000</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="order-by-time-query" tabindex="-1"><a class="header-anchor" href="#order-by-time-query" aria-hidden="true">#</a> Order By Time Query</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">1</span> <span class="token keyword">order</span> <span class="token keyword">by</span> <span class="token keyword">time</span> <span class="token keyword">desc</span> <span class="token keyword">limit</span> <span class="token number">10</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="select-clause" tabindex="-1"><a class="header-anchor" href="#select-clause" aria-hidden="true">#</a> <code>SELECT</code> CLAUSE</h3><h4 id="use-alias" tabindex="-1"><a class="header-anchor" href="#use-alias" aria-hidden="true">#</a> Use Alias</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> s1 <span class="token keyword">as</span> temperature<span class="token punctuation">,</span> s2 <span class="token keyword">as</span> speed <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="nested-expressions" tabindex="-1"><a class="header-anchor" href="#nested-expressions" aria-hidden="true">#</a> Nested Expressions</h4><h5 id="nested-expressions-with-time-series-query" tabindex="-1"><a class="header-anchor" href="#nested-expressions-with-time-series-query" aria-hidden="true">#</a> Nested Expressions with Time Series Query</h5><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> a<span class="token punctuation">,</span> |
| b<span class="token punctuation">,</span> |
| <span class="token punctuation">(</span><span class="token punctuation">(</span>a <span class="token operator">+</span> <span class="token number">1</span><span class="token punctuation">)</span> <span class="token operator">*</span> <span class="token number">2</span> <span class="token operator">-</span> <span class="token number">1</span><span class="token punctuation">)</span> <span class="token operator">%</span> <span class="token number">2</span> <span class="token operator">+</span> <span class="token number">1.5</span><span class="token punctuation">,</span> |
| sin<span class="token punctuation">(</span>a <span class="token operator">+</span> sin<span class="token punctuation">(</span>a <span class="token operator">+</span> sin<span class="token punctuation">(</span>b<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">,</span> |
| <span class="token operator">-</span><span class="token punctuation">(</span>a <span class="token operator">+</span> b<span class="token punctuation">)</span> <span class="token operator">*</span> <span class="token punctuation">(</span>sin<span class="token punctuation">(</span>a <span class="token operator">+</span> b<span class="token punctuation">)</span> <span class="token operator">*</span> sin<span class="token punctuation">(</span>a <span class="token operator">+</span> b<span class="token punctuation">)</span> <span class="token operator">+</span> cos<span class="token punctuation">(</span>a <span class="token operator">+</span> b<span class="token punctuation">)</span> <span class="token operator">*</span> cos<span class="token punctuation">(</span>a <span class="token operator">+</span> b<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token number">1</span> |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">;</span> |
| |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token punctuation">(</span>a <span class="token operator">+</span> b<span class="token punctuation">)</span> <span class="token operator">*</span> <span class="token number">2</span> <span class="token operator">+</span> sin<span class="token punctuation">(</span>a<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg |
| |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token punctuation">(</span>a <span class="token operator">+</span> <span class="token operator">*</span><span class="token punctuation">)</span> <span class="token operator">/</span> <span class="token number">2</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1 |
| |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token punctuation">(</span>a <span class="token operator">+</span> b<span class="token punctuation">)</span> <span class="token operator">*</span> <span class="token number">3</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h5 id="nested-expressions-query-with-aggregations" tabindex="-1"><a class="header-anchor" href="#nested-expressions-query-with-aggregations" aria-hidden="true">#</a> Nested Expressions query with aggregations</h5><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">avg</span><span class="token punctuation">(</span>temperature<span class="token punctuation">)</span><span class="token punctuation">,</span> |
| sin<span class="token punctuation">(</span><span class="token function">avg</span><span class="token punctuation">(</span>temperature<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">,</span> |
| <span class="token function">avg</span><span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token number">1</span><span class="token punctuation">,</span> |
| <span class="token operator">-</span><span class="token function">sum</span><span class="token punctuation">(</span>hardware<span class="token punctuation">)</span><span class="token punctuation">,</span> |
| <span class="token function">avg</span><span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token function">sum</span><span class="token punctuation">(</span>hardware<span class="token punctuation">)</span> |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">;</span> |
| |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">avg</span><span class="token punctuation">(</span><span class="token operator">*</span><span class="token punctuation">)</span><span class="token punctuation">,</span> |
| <span class="token punctuation">(</span><span class="token function">avg</span><span class="token punctuation">(</span><span class="token operator">*</span><span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token number">1</span><span class="token punctuation">)</span> <span class="token operator">*</span> <span class="token number">3</span> <span class="token operator">/</span> <span class="token number">2</span> <span class="token operator">-</span><span class="token number">1</span> |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1 |
| |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">avg</span><span class="token punctuation">(</span>temperature<span class="token punctuation">)</span><span class="token punctuation">,</span> |
| sin<span class="token punctuation">(</span><span class="token function">avg</span><span class="token punctuation">(</span>temperature<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">,</span> |
| <span class="token function">avg</span><span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token number">1</span><span class="token punctuation">,</span> |
| <span class="token operator">-</span><span class="token function">sum</span><span class="token punctuation">(</span>hardware<span class="token punctuation">)</span><span class="token punctuation">,</span> |
| <span class="token function">avg</span><span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token function">sum</span><span class="token punctuation">(</span>hardware<span class="token punctuation">)</span> <span class="token keyword">as</span> custom_sum |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 |
| <span class="token keyword">GROUP</span> <span class="token keyword">BY</span><span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">10</span><span class="token punctuation">,</span> <span class="token number">90</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token number">10</span>ms<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="last-query" tabindex="-1"><a class="header-anchor" href="#last-query" aria-hidden="true">#</a> Last Query</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token keyword">last</span> <span class="token keyword">status</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token keyword">last</span> <span class="token keyword">status</span><span class="token punctuation">,</span> temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">>=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">07</span>T23:<span class="token number">50</span>:<span class="token number">00</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token keyword">last</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">order</span> <span class="token keyword">by</span> timeseries <span class="token keyword">desc</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token keyword">last</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">order</span> <span class="token keyword">by</span> dataType <span class="token keyword">desc</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="where-clause" tabindex="-1"><a class="header-anchor" href="#where-clause" aria-hidden="true">#</a> <code>WHERE</code> CLAUSE</h3><h4 id="time-filter" tabindex="-1"><a class="header-anchor" href="#time-filter" aria-hidden="true">#</a> Time Filter</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> s1 <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">2022</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">05</span>:<span class="token number">00.000</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> s1 <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">=</span> <span class="token number">2022</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">05</span>:<span class="token number">00.000</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> s1 <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">>=</span> <span class="token number">2022</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">05</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">12</span>:<span class="token number">00.000</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="value-filter" tabindex="-1"><a class="header-anchor" href="#value-filter" aria-hidden="true">#</a> Value Filter</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> temperature <span class="token operator">></span> <span class="token number">36.5</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token keyword">status</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">status</span> <span class="token operator">=</span> <span class="token boolean">true</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> temperature <span class="token operator">between</span> <span class="token number">36.5</span> <span class="token operator">and</span> <span class="token number">40</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> temperature <span class="token operator">not</span> <span class="token operator">between</span> <span class="token number">36.5</span> <span class="token operator">and</span> <span class="token number">40</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> code <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> code <span class="token operator">in</span> <span class="token punctuation">(</span><span class="token string">'200'</span><span class="token punctuation">,</span> <span class="token string">'300'</span><span class="token punctuation">,</span> <span class="token string">'400'</span><span class="token punctuation">,</span> <span class="token string">'500'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> code <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> code <span class="token operator">not</span> <span class="token operator">in</span> <span class="token punctuation">(</span><span class="token string">'200'</span><span class="token punctuation">,</span> <span class="token string">'300'</span><span class="token punctuation">,</span> <span class="token string">'400'</span><span class="token punctuation">,</span> <span class="token string">'500'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> code <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> temperature <span class="token operator">is</span> <span class="token boolean">null</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> code <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> temperature <span class="token operator">is</span> <span class="token operator">not</span> <span class="token boolean">null</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="fuzzy-query" tabindex="-1"><a class="header-anchor" href="#fuzzy-query" aria-hidden="true">#</a> Fuzzy Query</h4><ul><li>Fuzzy matching using <code>Like</code></li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">value</span> <span class="token operator">like</span> <span class="token string">'%cc%'</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>device <span class="token keyword">where</span> <span class="token keyword">value</span> <span class="token operator">like</span> <span class="token string">'_b_'</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Fuzzy matching using <code>Regexp</code></li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">value</span> <span class="token operator">regexp</span> <span class="token string">'^[A-Za-z]+$'</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">value</span> <span class="token operator">regexp</span> <span class="token string">'^[a-z]+$'</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">100</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="group-by-clause" tabindex="-1"><a class="header-anchor" href="#group-by-clause" aria-hidden="true">#</a> <code>GROUP BY</code> CLAUSE</h3><ul><li>Aggregate By Time without Specifying the Sliding Step Length</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span><span class="token punctuation">,</span> max_value<span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">,</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">07</span>T23:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token number">1</span>d<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Aggregate By Time Specifying the Sliding Step Length</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span><span class="token punctuation">,</span> max_value<span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">,</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">07</span> <span class="token number">23</span>:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token number">3</span>h<span class="token punctuation">,</span> <span class="token number">1</span>d<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Aggregate by Natural Month</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">group</span> <span class="token keyword">by</span><span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">,</span> <span class="token number">2019</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">07</span>T23:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token number">1</span>mo<span class="token punctuation">,</span> <span class="token number">2</span>mo<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">group</span> <span class="token keyword">by</span><span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">10</span><span class="token operator">-</span><span class="token number">31</span>T00:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">,</span> <span class="token number">2019</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">07</span>T23:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token number">1</span>mo<span class="token punctuation">,</span> <span class="token number">2</span>mo<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Left Open And Right Close Range</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">,</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">07</span>T23:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">]</span><span class="token punctuation">,</span><span class="token number">1</span>d<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Aggregation By Variation</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> __endTime<span class="token punctuation">,</span> <span class="token function">avg</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token function">count</span><span class="token punctuation">(</span>s2<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token function">sum</span><span class="token punctuation">(</span>s3<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d <span class="token keyword">group</span> <span class="token keyword">by</span> variation<span class="token punctuation">(</span>s6<span class="token punctuation">)</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> __endTime<span class="token punctuation">,</span> <span class="token function">avg</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token function">count</span><span class="token punctuation">(</span>s2<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token function">sum</span><span class="token punctuation">(</span>s3<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d <span class="token keyword">group</span> <span class="token keyword">by</span> variation<span class="token punctuation">(</span>s6<span class="token punctuation">,</span> ignoreNull<span class="token operator">=</span><span class="token boolean">false</span><span class="token punctuation">)</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> __endTime<span class="token punctuation">,</span> <span class="token function">avg</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token function">count</span><span class="token punctuation">(</span>s2<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token function">sum</span><span class="token punctuation">(</span>s3<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d <span class="token keyword">group</span> <span class="token keyword">by</span> variation<span class="token punctuation">(</span>s6<span class="token punctuation">,</span> <span class="token number">4</span><span class="token punctuation">)</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> __endTime<span class="token punctuation">,</span> <span class="token function">avg</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token function">count</span><span class="token punctuation">(</span>s2<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token function">sum</span><span class="token punctuation">(</span>s3<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d <span class="token keyword">group</span> <span class="token keyword">by</span> variation<span class="token punctuation">(</span>s6<span class="token operator">+</span>s5<span class="token punctuation">,</span> <span class="token number">10</span><span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Aggregation By Condition</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> max_time<span class="token punctuation">(</span>charging_status<span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token function">count</span><span class="token punctuation">(</span>vehicle_status<span class="token punctuation">)</span><span class="token punctuation">,</span>last_value<span class="token punctuation">(</span>soc<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> condition<span class="token punctuation">(</span>charging_status<span class="token operator">=</span><span class="token number">1</span><span class="token punctuation">,</span>KEEP<span class="token operator">>=</span><span class="token number">2</span><span class="token punctuation">,</span>ignoringNull<span class="token operator">=</span><span class="token boolean">true</span><span class="token punctuation">)</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> max_time<span class="token punctuation">(</span>charging_status<span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token function">count</span><span class="token punctuation">(</span>vehicle_status<span class="token punctuation">)</span><span class="token punctuation">,</span>last_value<span class="token punctuation">(</span>soc<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> condition<span class="token punctuation">(</span>charging_status<span class="token operator">=</span><span class="token number">1</span><span class="token punctuation">,</span>KEEP<span class="token operator">>=</span><span class="token number">2</span><span class="token punctuation">,</span>ignoringNull<span class="token operator">=</span><span class="token boolean">false</span><span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Aggregation By Session</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> __endTime<span class="token punctuation">,</span><span class="token function">count</span><span class="token punctuation">(</span><span class="token operator">*</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token keyword">session</span><span class="token punctuation">(</span><span class="token number">1</span>d<span class="token punctuation">)</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> __endTime<span class="token punctuation">,</span><span class="token function">sum</span><span class="token punctuation">(</span>hardware<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt01 <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token keyword">session</span><span class="token punctuation">(</span><span class="token number">50</span>s<span class="token punctuation">)</span> <span class="token keyword">having</span> <span class="token function">sum</span><span class="token punctuation">(</span>hardware<span class="token punctuation">)</span><span class="token operator">></span><span class="token number">0</span> align <span class="token keyword">by</span> device |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Aggregation By Count</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span>charging_stauts<span class="token punctuation">)</span><span class="token punctuation">,</span> first_value<span class="token punctuation">(</span>soc<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token function">count</span><span class="token punctuation">(</span>charging_status<span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">)</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span>charging_stauts<span class="token punctuation">)</span><span class="token punctuation">,</span> first_value<span class="token punctuation">(</span>soc<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token function">count</span><span class="token punctuation">(</span>charging_status<span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">,</span>ignoreNull<span class="token operator">=</span><span class="token boolean">false</span><span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Aggregation By Level</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token keyword">level</span> <span class="token operator">=</span> <span class="token number">1</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token keyword">level</span> <span class="token operator">=</span> <span class="token number">3</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token keyword">level</span> <span class="token operator">=</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">3</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> max_value<span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token keyword">level</span> <span class="token operator">=</span> <span class="token number">0</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token operator">*</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token keyword">level</span> <span class="token operator">=</span> <span class="token number">2</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Aggregate By Time with Level Clause</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">,</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">07</span>T23:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">]</span><span class="token punctuation">,</span><span class="token number">1</span>d<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">level</span><span class="token operator">=</span><span class="token number">1</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">,</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">07</span> <span class="token number">23</span>:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token number">3</span>h<span class="token punctuation">,</span> <span class="token number">1</span>d<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">level</span><span class="token operator">=</span><span class="token number">1</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Aggregation query by one single tag</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">SELECT</span> <span class="token function">AVG</span><span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>factory1<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">GROUP</span> <span class="token keyword">BY</span> TAGS<span class="token punctuation">(</span>city<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Aggregation query by multiple tags</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">SELECT</span> <span class="token function">avg</span><span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>factory1<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">GROUP</span> <span class="token keyword">BY</span> TAGS<span class="token punctuation">(</span>city<span class="token punctuation">,</span> workshop<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Downsampling Aggregation by tags based on Time Window</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">SELECT</span> <span class="token function">avg</span><span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>factory1<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">GROUP</span> <span class="token keyword">BY</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">1000</span><span class="token punctuation">,</span> <span class="token number">10000</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token number">5</span>s<span class="token punctuation">)</span><span class="token punctuation">,</span> TAGS<span class="token punctuation">(</span>city<span class="token punctuation">,</span> workshop<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="having-clause" tabindex="-1"><a class="header-anchor" href="#having-clause" aria-hidden="true">#</a> <code>HAVING</code> CLAUSE</h3><p>Correct:</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">11</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token number">2</span>ms<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">level</span><span class="token operator">=</span><span class="token number">1</span> <span class="token keyword">having</span> <span class="token function">count</span><span class="token punctuation">(</span>s2<span class="token punctuation">)</span> <span class="token operator">></span> <span class="token number">1</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token function">count</span><span class="token punctuation">(</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">11</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token number">2</span>ms<span class="token punctuation">)</span> <span class="token keyword">having</span> <span class="token function">count</span><span class="token punctuation">(</span>s2<span class="token punctuation">)</span> <span class="token operator">></span> <span class="token number">1</span> align <span class="token keyword">by</span> device |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><p>Incorrect:</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token number">1</span>ms<span class="token punctuation">)</span> <span class="token keyword">having</span> <span class="token function">sum</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token operator">></span> s1 |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token number">1</span>ms<span class="token punctuation">)</span> <span class="token keyword">having</span> s1 <span class="token operator">></span> <span class="token number">1</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token number">1</span>ms<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">level</span><span class="token operator">=</span><span class="token number">1</span> <span class="token keyword">having</span> <span class="token function">sum</span><span class="token punctuation">(</span>d1<span class="token punctuation">.</span>s1<span class="token punctuation">)</span> <span class="token operator">></span> <span class="token number">1</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span>d1<span class="token punctuation">.</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token number">1</span>ms<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">level</span><span class="token operator">=</span><span class="token number">1</span> <span class="token keyword">having</span> <span class="token function">sum</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token operator">></span> <span class="token number">1</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="fill-clause" tabindex="-1"><a class="header-anchor" href="#fill-clause" aria-hidden="true">#</a> <code>FILL</code> CLAUSE</h3><h4 id="previous-fill" tabindex="-1"><a class="header-anchor" href="#previous-fill" aria-hidden="true">#</a> <code>PREVIOUS</code> Fill</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> temperature<span class="token punctuation">,</span> <span class="token keyword">status</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sgcc<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt01 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">>=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">37</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">40</span>:<span class="token number">00.000</span> fill<span class="token punctuation">(</span>previous<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="linear-fill" tabindex="-1"><a class="header-anchor" href="#linear-fill" aria-hidden="true">#</a> <code>LINEAR</code> Fill</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> temperature<span class="token punctuation">,</span> <span class="token keyword">status</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sgcc<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt01 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">>=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">37</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">40</span>:<span class="token number">00.000</span> fill<span class="token punctuation">(</span>linear<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="constant-fill" tabindex="-1"><a class="header-anchor" href="#constant-fill" aria-hidden="true">#</a> Constant Fill</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> temperature<span class="token punctuation">,</span> <span class="token keyword">status</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sgcc<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt01 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">>=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">37</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">40</span>:<span class="token number">00.000</span> fill<span class="token punctuation">(</span><span class="token number">2.0</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> temperature<span class="token punctuation">,</span> <span class="token keyword">status</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sgcc<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt01 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">>=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">37</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T16:<span class="token number">40</span>:<span class="token number">00.000</span> fill<span class="token punctuation">(</span><span class="token boolean">true</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="limit-and-slimit-clauses-pagination" tabindex="-1"><a class="header-anchor" href="#limit-and-slimit-clauses-pagination" aria-hidden="true">#</a> <code>LIMIT</code> and <code>SLIMIT</code> CLAUSES (PAGINATION)</h3><h4 id="row-control-over-query-results" tabindex="-1"><a class="header-anchor" href="#row-control-over-query-results" aria-hidden="true">#</a> Row Control over Query Results</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token keyword">status</span><span class="token punctuation">,</span> temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">limit</span> <span class="token number">10</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token keyword">status</span><span class="token punctuation">,</span> temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">limit</span> <span class="token number">5</span> <span class="token keyword">offset</span> <span class="token number">3</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token keyword">status</span><span class="token punctuation">,</span>temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">05</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span><span class="token operator"><</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">12</span>:<span class="token number">00.000</span> <span class="token keyword">limit</span> <span class="token number">2</span> <span class="token keyword">offset</span> <span class="token number">3</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span><span class="token punctuation">,</span> max_value<span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">,</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">07</span>T23:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token number">1</span>d<span class="token punctuation">)</span> <span class="token keyword">limit</span> <span class="token number">5</span> <span class="token keyword">offset</span> <span class="token number">3</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="column-control-over-query-results" tabindex="-1"><a class="header-anchor" href="#column-control-over-query-results" aria-hidden="true">#</a> Column Control over Query Results</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">05</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">12</span>:<span class="token number">00.000</span> slimit <span class="token number">1</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">05</span>:<span class="token number">00.000</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator"><</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">12</span>:<span class="token number">00.000</span> slimit <span class="token number">1</span> soffset <span class="token number">1</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> max_value<span class="token punctuation">(</span><span class="token operator">*</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">,</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">07</span>T23:<span class="token number">00</span>:<span class="token number">00</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token number">1</span>d<span class="token punctuation">)</span> slimit <span class="token number">1</span> soffset <span class="token number">1</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="row-and-column-control-over-query-results" tabindex="-1"><a class="header-anchor" href="#row-and-column-control-over-query-results" aria-hidden="true">#</a> Row and Column Control over Query Results</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01 <span class="token keyword">limit</span> <span class="token number">10</span> <span class="token keyword">offset</span> <span class="token number">100</span> slimit <span class="token number">2</span> soffset <span class="token number">0</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="order-by-clause" tabindex="-1"><a class="header-anchor" href="#order-by-clause" aria-hidden="true">#</a> <code>ORDER BY</code> CLAUSE</h3><h4 id="order-by-in-align-by-time-mode" tabindex="-1"><a class="header-anchor" href="#order-by-in-align-by-time-mode" aria-hidden="true">#</a> Order by in ALIGN BY TIME mode</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">01</span>:<span class="token number">00</span> <span class="token keyword">order</span> <span class="token keyword">by</span> <span class="token keyword">time</span> <span class="token keyword">desc</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="order-by-in-align-by-device-mode" tabindex="-1"><a class="header-anchor" href="#order-by-in-align-by-device-mode" aria-hidden="true">#</a> Order by in ALIGN BY DEVICE mode</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">01</span>:<span class="token number">00</span> <span class="token keyword">order</span> <span class="token keyword">by</span> device <span class="token keyword">desc</span><span class="token punctuation">,</span><span class="token keyword">time</span> <span class="token keyword">asc</span> align <span class="token keyword">by</span> device<span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">01</span>:<span class="token number">00</span> <span class="token keyword">order</span> <span class="token keyword">by</span> <span class="token keyword">time</span> <span class="token keyword">asc</span><span class="token punctuation">,</span>device <span class="token keyword">desc</span> align <span class="token keyword">by</span> device<span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">01</span>:<span class="token number">00</span> align <span class="token keyword">by</span> device<span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token operator">*</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">00</span>:<span class="token number">00.000</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span><span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">03</span>:<span class="token number">00.000</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">]</span><span class="token punctuation">,</span><span class="token number">1</span>m<span class="token punctuation">)</span> <span class="token keyword">order</span> <span class="token keyword">by</span> device <span class="token keyword">asc</span><span class="token punctuation">,</span><span class="token keyword">time</span> <span class="token keyword">asc</span> align <span class="token keyword">by</span> device |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="order-by-arbitrary-expressions" tabindex="-1"><a class="header-anchor" href="#order-by-arbitrary-expressions" aria-hidden="true">#</a> Order by arbitrary expressions</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> score <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">order</span> <span class="token keyword">by</span> score <span class="token keyword">desc</span> align <span class="token keyword">by</span> device |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> score<span class="token punctuation">,</span>total <span class="token keyword">from</span> root<span class="token punctuation">.</span>one <span class="token keyword">order</span> <span class="token keyword">by</span> base<span class="token operator">+</span>score<span class="token operator">+</span>bonus <span class="token keyword">desc</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> score<span class="token punctuation">,</span>total <span class="token keyword">from</span> root<span class="token punctuation">.</span>one <span class="token keyword">order</span> <span class="token keyword">by</span> total <span class="token keyword">desc</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> base<span class="token punctuation">,</span> score<span class="token punctuation">,</span> bonus<span class="token punctuation">,</span> total <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">order</span> <span class="token keyword">by</span> total <span class="token keyword">desc</span> NULLS <span class="token keyword">Last</span><span class="token punctuation">,</span> |
| score <span class="token keyword">desc</span> NULLS <span class="token keyword">Last</span><span class="token punctuation">,</span> |
| bonus <span class="token keyword">desc</span> NULLS <span class="token keyword">Last</span><span class="token punctuation">,</span> |
| <span class="token keyword">time</span> <span class="token keyword">desc</span> align <span class="token keyword">by</span> device |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> min_value<span class="token punctuation">(</span>total<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">order</span> <span class="token keyword">by</span> min_value<span class="token punctuation">(</span>total<span class="token punctuation">)</span> <span class="token keyword">asc</span> align <span class="token keyword">by</span> device |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> min_value<span class="token punctuation">(</span>total<span class="token punctuation">)</span><span class="token punctuation">,</span>max_value<span class="token punctuation">(</span>base<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">order</span> <span class="token keyword">by</span> max_value<span class="token punctuation">(</span>total<span class="token punctuation">)</span> <span class="token keyword">desc</span> align <span class="token keyword">by</span> device |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> score <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">order</span> <span class="token keyword">by</span> device <span class="token keyword">asc</span><span class="token punctuation">,</span> score <span class="token keyword">desc</span><span class="token punctuation">,</span> <span class="token keyword">time</span> <span class="token keyword">asc</span> align <span class="token keyword">by</span> device |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="align-by-clause" tabindex="-1"><a class="header-anchor" href="#align-by-clause" aria-hidden="true">#</a> <code>ALIGN BY</code> CLAUSE</h3><h4 id="align-by-device" tabindex="-1"><a class="header-anchor" href="#align-by-device" aria-hidden="true">#</a> Align by Device</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2017</span><span class="token operator">-</span><span class="token number">11</span><span class="token operator">-</span><span class="token number">01</span>T00:<span class="token number">01</span>:<span class="token number">00</span> align <span class="token keyword">by</span> device<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="into-clause-query-write-back" tabindex="-1"><a class="header-anchor" href="#into-clause-query-write-back" aria-hidden="true">#</a> <code>INTO</code> CLAUSE (QUERY WRITE-BACK)</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> s1<span class="token punctuation">,</span> s2 <span class="token keyword">into</span> root<span class="token punctuation">.</span>sg_copy<span class="token punctuation">.</span>d1<span class="token punctuation">(</span>t1<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg_copy<span class="token punctuation">.</span>d2<span class="token punctuation">(</span>t1<span class="token punctuation">,</span> t2<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg_copy<span class="token punctuation">.</span>d1<span class="token punctuation">(</span>t2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1<span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d2<span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span>s1 <span class="token operator">+</span> s2<span class="token punctuation">)</span><span class="token punctuation">,</span> last_value<span class="token punctuation">(</span>s2<span class="token punctuation">)</span> <span class="token keyword">into</span> root<span class="token punctuation">.</span>agg<span class="token punctuation">.</span><span class="token function">count</span><span class="token punctuation">(</span>s1_add_s2<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>agg<span class="token punctuation">.</span>last_value<span class="token punctuation">(</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 <span class="token keyword">group</span> <span class="token keyword">by</span> <span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">100</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token number">10</span>ms<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> s1<span class="token punctuation">,</span> s2 <span class="token keyword">into</span> root<span class="token punctuation">.</span>sg_copy<span class="token punctuation">.</span>d1<span class="token punctuation">(</span>t1<span class="token punctuation">,</span> t2<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg_copy<span class="token punctuation">.</span>d2<span class="token punctuation">(</span>t1<span class="token punctuation">,</span> t2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1<span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d2 align <span class="token keyword">by</span> device<span class="token punctuation">;</span> |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> s1 <span class="token operator">+</span> s2 <span class="token keyword">into</span> root<span class="token punctuation">.</span>expr<span class="token punctuation">.</span><span class="token keyword">add</span><span class="token punctuation">(</span>d1s1_d1s2<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>expr<span class="token punctuation">.</span><span class="token keyword">add</span><span class="token punctuation">(</span>d2s1_d2s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1<span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d2 align <span class="token keyword">by</span> device<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Using variable placeholders:</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>IoTDB <span class="token operator">></span> <span class="token keyword">select</span> s1<span class="token punctuation">,</span> s2 |
| <span class="token keyword">into</span> root<span class="token punctuation">.</span>sg_copy<span class="token punctuation">.</span>d1<span class="token punctuation">(</span>::<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg_copy<span class="token punctuation">.</span>d2<span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg_copy<span class="token punctuation">.</span>d1<span class="token punctuation">(</span>${<span class="token number">3</span>}<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg_copy<span class="token punctuation">.</span>d2<span class="token punctuation">(</span>::<span class="token punctuation">)</span> |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1<span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d2<span class="token punctuation">;</span> |
| |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> d1<span class="token punctuation">.</span>s1<span class="token punctuation">,</span> d1<span class="token punctuation">.</span>s2<span class="token punctuation">,</span> d2<span class="token punctuation">.</span>s3<span class="token punctuation">,</span> d3<span class="token punctuation">.</span>s4 |
| <span class="token keyword">into</span> ::<span class="token punctuation">(</span>s1_1<span class="token punctuation">,</span> s2_2<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d2_2<span class="token punctuation">(</span>s3_3<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>${<span class="token number">2</span>}_copy<span class="token punctuation">.</span>::<span class="token punctuation">(</span>s4<span class="token punctuation">)</span> |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">;</span> |
| |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">into</span> root<span class="token punctuation">.</span>sg_bk<span class="token punctuation">.</span>::<span class="token punctuation">(</span>::<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span><span class="token punctuation">;</span> |
| |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> s3<span class="token punctuation">,</span> s4 |
| <span class="token keyword">into</span> root<span class="token punctuation">.</span>backup_sg<span class="token punctuation">.</span>d1<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> s3<span class="token punctuation">,</span> s4<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>backup_sg<span class="token punctuation">.</span>d2<span class="token punctuation">(</span>::<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d3<span class="token punctuation">(</span>backup_${<span class="token number">4</span>}<span class="token punctuation">)</span> |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1<span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d2<span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d3 |
| align <span class="token keyword">by</span> device<span class="token punctuation">;</span> |
| |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token function">avg</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token function">sum</span><span class="token punctuation">(</span>s2<span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token function">sum</span><span class="token punctuation">(</span>s3<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token function">count</span><span class="token punctuation">(</span>s4<span class="token punctuation">)</span> |
| <span class="token keyword">into</span> root<span class="token punctuation">.</span>agg_${<span class="token number">2</span>}<span class="token punctuation">.</span>::<span class="token punctuation">(</span>avg_s1<span class="token punctuation">,</span> sum_s2_add_s3<span class="token punctuation">,</span> count_s4<span class="token punctuation">)</span> |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> |
| align <span class="token keyword">by</span> device<span class="token punctuation">;</span> |
| |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">into</span> ::<span class="token punctuation">(</span>backup_${<span class="token number">4</span>}<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> align <span class="token keyword">by</span> device<span class="token punctuation">;</span> |
| |
| IoTDB <span class="token operator">></span> <span class="token keyword">select</span> s1<span class="token punctuation">,</span> s2 <span class="token keyword">into</span> root<span class="token punctuation">.</span>sg_copy<span class="token punctuation">.</span>d1<span class="token punctuation">(</span>t1<span class="token punctuation">,</span> t2<span class="token punctuation">)</span><span class="token punctuation">,</span> aligned root<span class="token punctuation">.</span>sg_copy<span class="token punctuation">.</span>d2<span class="token punctuation">(</span>t1<span class="token punctuation">,</span> t2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1<span class="token punctuation">,</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d2 align <span class="token keyword">by</span> device<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="operator" tabindex="-1"><a class="header-anchor" href="#operator" aria-hidden="true">#</a> OPERATOR</h2><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Operator-and-Expression.html" class="">Operator-and-Expression</a>.</p><h3 id="arithmetic-operators" tabindex="-1"><a class="header-anchor" href="#arithmetic-operators" aria-hidden="true">#</a> Arithmetic Operators</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#arithmetic-operators-and-functions" class="">Arithmetic Operators and Functions</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> s1<span class="token punctuation">,</span> <span class="token operator">-</span> s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> <span class="token operator">+</span> s2<span class="token punctuation">,</span> s1 <span class="token operator">+</span> s2<span class="token punctuation">,</span> s1 <span class="token operator">-</span> s2<span class="token punctuation">,</span> s1 <span class="token operator">*</span> s2<span class="token punctuation">,</span> s1 <span class="token operator">/</span> s2<span class="token punctuation">,</span> s1 <span class="token operator">%</span> s2 <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="comparison-operators" tabindex="-1"><a class="header-anchor" href="#comparison-operators" aria-hidden="true">#</a> Comparison Operators</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#comparison-operators-and-functions" class="">Comparison Operators and Functions</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token comment"># Basic comparison operators</span> |
| <span class="token keyword">select</span> a<span class="token punctuation">,</span> b<span class="token punctuation">,</span> a <span class="token operator">></span> <span class="token number">10</span><span class="token punctuation">,</span> a <span class="token operator"><=</span> b<span class="token punctuation">,</span> <span class="token operator">!</span><span class="token punctuation">(</span>a <span class="token operator"><=</span> b<span class="token punctuation">)</span><span class="token punctuation">,</span> a <span class="token operator">></span> <span class="token number">10</span> <span class="token operator">&&</span> a <span class="token operator">></span> b <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">;</span> |
| |
| <span class="token comment"># `BETWEEN ... AND ...` operator</span> |
| <span class="token keyword">select</span> temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> temperature <span class="token operator">between</span> <span class="token number">36.5</span> <span class="token operator">and</span> <span class="token number">40</span><span class="token punctuation">;</span> |
| <span class="token keyword">select</span> temperature <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> temperature <span class="token operator">not</span> <span class="token operator">between</span> <span class="token number">36.5</span> <span class="token operator">and</span> <span class="token number">40</span><span class="token punctuation">;</span> |
| |
| <span class="token comment"># Fuzzy matching operator: Use `Like` for fuzzy matching</span> |
| <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">value</span> <span class="token operator">like</span> <span class="token string">'%cc%'</span> |
| <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>device <span class="token keyword">where</span> <span class="token keyword">value</span> <span class="token operator">like</span> <span class="token string">'_b_'</span> |
| |
| <span class="token comment"># Fuzzy matching operator: Use `Regexp` for fuzzy matching</span> |
| <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">value</span> <span class="token operator">regexp</span> <span class="token string">'^[A-Za-z]+$'</span> |
| <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">value</span> <span class="token operator">regexp</span> <span class="token string">'^[a-z]+$'</span> <span class="token operator">and</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">100</span> |
| <span class="token keyword">select</span> b<span class="token punctuation">,</span> b <span class="token operator">like</span> <span class="token string">'1%'</span><span class="token punctuation">,</span> b <span class="token operator">regexp</span> <span class="token string">'[0-2]'</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">;</span> |
| |
| <span class="token comment"># `IS NULL` operator</span> |
| <span class="token keyword">select</span> code <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> temperature <span class="token operator">is</span> <span class="token boolean">null</span><span class="token punctuation">;</span> |
| <span class="token keyword">select</span> code <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> temperature <span class="token operator">is</span> <span class="token operator">not</span> <span class="token boolean">null</span><span class="token punctuation">;</span> |
| |
| <span class="token comment"># `IN` operator</span> |
| <span class="token keyword">select</span> code <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> code <span class="token operator">in</span> <span class="token punctuation">(</span><span class="token string">'200'</span><span class="token punctuation">,</span> <span class="token string">'300'</span><span class="token punctuation">,</span> <span class="token string">'400'</span><span class="token punctuation">,</span> <span class="token string">'500'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">select</span> code <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> code <span class="token operator">not</span> <span class="token operator">in</span> <span class="token punctuation">(</span><span class="token string">'200'</span><span class="token punctuation">,</span> <span class="token string">'300'</span><span class="token punctuation">,</span> <span class="token string">'400'</span><span class="token punctuation">,</span> <span class="token string">'500'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">select</span> a<span class="token punctuation">,</span> a <span class="token operator">in</span> <span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="logical-operators" tabindex="-1"><a class="header-anchor" href="#logical-operators" aria-hidden="true">#</a> Logical Operators</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#logical-operators" class="">Logical Operators</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> a<span class="token punctuation">,</span> b<span class="token punctuation">,</span> a <span class="token operator">></span> <span class="token number">10</span><span class="token punctuation">,</span> a <span class="token operator"><=</span> b<span class="token punctuation">,</span> <span class="token operator">!</span><span class="token punctuation">(</span>a <span class="token operator"><=</span> b<span class="token punctuation">)</span><span class="token punctuation">,</span> a <span class="token operator">></span> <span class="token number">10</span> <span class="token operator">&&</span> a <span class="token operator">></span> b <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h2 id="built-in-functions" tabindex="-1"><a class="header-anchor" href="#built-in-functions" aria-hidden="true">#</a> BUILT-IN FUNCTIONS</h2><p>For more details, see document <a href="/UserGuide/latest/Reference/Function-and-Expression.html" class="">Operator-and-Expression</a>.</p><h3 id="aggregate-functions" tabindex="-1"><a class="header-anchor" href="#aggregate-functions" aria-hidden="true">#</a> Aggregate Functions</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#aggregate-functions" class="">Aggregate Functions</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">status</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">;</span> |
| |
| <span class="token keyword">select</span> count_if<span class="token punctuation">(</span>s1<span class="token operator">=</span><span class="token number">0</span> <span class="token operator">&</span> s2<span class="token operator">=</span><span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">,</span> count_if<span class="token punctuation">(</span>s1<span class="token operator">=</span><span class="token number">1</span> <span class="token operator">&</span> s2<span class="token operator">=</span><span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>db<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| <span class="token keyword">select</span> count_if<span class="token punctuation">(</span>s1<span class="token operator">=</span><span class="token number">0</span> <span class="token operator">&</span> s2<span class="token operator">=</span><span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">,</span> <span class="token string">'ignoreNull'</span><span class="token operator">=</span><span class="token string">'false'</span><span class="token punctuation">)</span><span class="token punctuation">,</span> count_if<span class="token punctuation">(</span>s1<span class="token operator">=</span><span class="token number">1</span> <span class="token operator">&</span> s2<span class="token operator">=</span><span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">,</span> <span class="token string">'ignoreNull'</span><span class="token operator">=</span><span class="token string">'false'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>db<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| |
| <span class="token keyword">select</span> time_duration<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>db<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="arithmetic-functions" tabindex="-1"><a class="header-anchor" href="#arithmetic-functions" aria-hidden="true">#</a> Arithmetic Functions</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#arithmetic-operators-and-functions" class="">Arithmetic Operators and Functions</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> s1<span class="token punctuation">,</span> sin<span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> cos<span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> tan<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">limit</span> <span class="token number">5</span> <span class="token keyword">offset</span> <span class="token number">1000</span><span class="token punctuation">;</span> |
| <span class="token keyword">select</span> s4<span class="token punctuation">,</span><span class="token function">round</span><span class="token punctuation">(</span>s4<span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token function">round</span><span class="token punctuation">(</span>s4<span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token function">round</span><span class="token punctuation">(</span>s4<span class="token punctuation">,</span><span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="comparison-functions" tabindex="-1"><a class="header-anchor" href="#comparison-functions" aria-hidden="true">#</a> Comparison Functions</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#comparison-operators-and-functions" class="">Comparison Operators and Functions</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> ts<span class="token punctuation">,</span> on_off<span class="token punctuation">(</span>ts<span class="token punctuation">,</span> <span class="token string">'threshold'</span><span class="token operator">=</span><span class="token string">'2'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">;</span> |
| <span class="token keyword">select</span> ts<span class="token punctuation">,</span> in_range<span class="token punctuation">(</span>ts<span class="token punctuation">,</span> <span class="token string">'lower'</span><span class="token operator">=</span><span class="token string">'2'</span><span class="token punctuation">,</span> <span class="token string">'upper'</span><span class="token operator">=</span><span class="token string">'3.1'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="string-processing-functions" tabindex="-1"><a class="header-anchor" href="#string-processing-functions" aria-hidden="true">#</a> String Processing Functions</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#string-processing" class="">String Processing</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> s1<span class="token punctuation">,</span> string_contains<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">'s'</span><span class="token operator">=</span><span class="token string">'warn'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d4<span class="token punctuation">;</span> |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> string_matches<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">'regex'</span><span class="token operator">=</span><span class="token string">'[^\\s]+37229'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d4<span class="token punctuation">;</span> |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> length<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> locate<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"target"</span><span class="token operator">=</span><span class="token string">"1"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> locate<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"target"</span><span class="token operator">=</span><span class="token string">"1"</span><span class="token punctuation">,</span> <span class="token string">"reverse"</span><span class="token operator">=</span><span class="token string">"true"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> startswith<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"target"</span><span class="token operator">=</span><span class="token string">"1"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> endswith<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"target"</span><span class="token operator">=</span><span class="token string">"1"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> concat<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> <span class="token string">"target1"</span><span class="token operator">=</span><span class="token string">"IoT"</span><span class="token punctuation">,</span> <span class="token string">"target2"</span><span class="token operator">=</span><span class="token string">"DB"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> concat<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> <span class="token string">"target1"</span><span class="token operator">=</span><span class="token string">"IoT"</span><span class="token punctuation">,</span> <span class="token string">"target2"</span><span class="token operator">=</span><span class="token string">"DB"</span><span class="token punctuation">,</span> <span class="token string">"series_behind"</span><span class="token operator">=</span><span class="token string">"true"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> substring<span class="token punctuation">(</span>s1 <span class="token keyword">from</span> <span class="token number">1</span> <span class="token keyword">for</span> <span class="token number">2</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> <span class="token keyword">replace</span><span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">'es'</span><span class="token punctuation">,</span> <span class="token string">'tt'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> upper<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> lower<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s3<span class="token punctuation">,</span> trim<span class="token punctuation">(</span>s3<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> strcmp<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> strreplace<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"target"</span><span class="token operator">=</span><span class="token string">","</span><span class="token punctuation">,</span> <span class="token string">"replace"</span><span class="token operator">=</span><span class="token string">"/"</span><span class="token punctuation">,</span> <span class="token string">"limit"</span><span class="token operator">=</span><span class="token string">"2"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> strreplace<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"target"</span><span class="token operator">=</span><span class="token string">","</span><span class="token punctuation">,</span> <span class="token string">"replace"</span><span class="token operator">=</span><span class="token string">"/"</span><span class="token punctuation">,</span> <span class="token string">"limit"</span><span class="token operator">=</span><span class="token string">"1"</span><span class="token punctuation">,</span> <span class="token string">"offset"</span><span class="token operator">=</span><span class="token string">"1"</span><span class="token punctuation">,</span> <span class="token string">"reverse"</span><span class="token operator">=</span><span class="token string">"true"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> regexmatch<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"regex"</span><span class="token operator">=</span><span class="token string">"\d+\.\d+\.\d+\.\d+"</span><span class="token punctuation">,</span> <span class="token string">"group"</span><span class="token operator">=</span><span class="token string">"0"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> regexreplace<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"regex"</span><span class="token operator">=</span><span class="token string">"192\.168\.0\.(\d+)"</span><span class="token punctuation">,</span> <span class="token string">"replace"</span><span class="token operator">=</span><span class="token string">"cluster-$1"</span><span class="token punctuation">,</span> <span class="token string">"limit"</span><span class="token operator">=</span><span class="token string">"1"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> regexsplit<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"regex"</span><span class="token operator">=</span><span class="token string">","</span><span class="token punctuation">,</span> <span class="token string">"index"</span><span class="token operator">=</span><span class="token string">"-1"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> regexsplit<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"regex"</span><span class="token operator">=</span><span class="token string">","</span><span class="token punctuation">,</span> <span class="token string">"index"</span><span class="token operator">=</span><span class="token string">"3"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="data-type-conversion-function" tabindex="-1"><a class="header-anchor" href="#data-type-conversion-function" aria-hidden="true">#</a> Data Type Conversion Function</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#data-type-conversion-function" class="">Data Type Conversion Function</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">SELECT</span> cast<span class="token punctuation">(</span>s1 <span class="token keyword">as</span> INT32<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="constant-timeseries-generating-functions" tabindex="-1"><a class="header-anchor" href="#constant-timeseries-generating-functions" aria-hidden="true">#</a> Constant Timeseries Generating Functions</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#constant-timeseries-generating-functions" class="">Constant Timeseries Generating Functions</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> const<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">'value'</span><span class="token operator">=</span><span class="token string">'1024'</span><span class="token punctuation">,</span> <span class="token string">'type'</span><span class="token operator">=</span><span class="token string">'INT64'</span><span class="token punctuation">)</span><span class="token punctuation">,</span> pi<span class="token punctuation">(</span>s2<span class="token punctuation">)</span><span class="token punctuation">,</span> e<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="selector-functions" tabindex="-1"><a class="header-anchor" href="#selector-functions" aria-hidden="true">#</a> Selector Functions</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#selector-functions" class="">Selector Functions</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> s1<span class="token punctuation">,</span> top_k<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">'k'</span><span class="token operator">=</span><span class="token string">'2'</span><span class="token punctuation">)</span><span class="token punctuation">,</span> bottom_k<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">'k'</span><span class="token operator">=</span><span class="token string">'2'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d2 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator">></span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">12</span><span class="token operator">-</span><span class="token number">10</span>T20:<span class="token number">36</span>:<span class="token number">15.530</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="continuous-interval-functions" tabindex="-1"><a class="header-anchor" href="#continuous-interval-functions" aria-hidden="true">#</a> Continuous Interval Functions</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#continuous-interval-functions" class="">Continuous Interval Functions</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> s1<span class="token punctuation">,</span> zero_count<span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> non_zero_count<span class="token punctuation">(</span>s2<span class="token punctuation">)</span><span class="token punctuation">,</span> zero_duration<span class="token punctuation">(</span>s3<span class="token punctuation">)</span><span class="token punctuation">,</span> non_zero_duration<span class="token punctuation">(</span>s4<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d2<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="variation-trend-calculation-functions" tabindex="-1"><a class="header-anchor" href="#variation-trend-calculation-functions" aria-hidden="true">#</a> Variation Trend Calculation Functions</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#variation-trend-calculation-functions" class="">Variation Trend Calculation Functions</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> s1<span class="token punctuation">,</span> time_difference<span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> difference<span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> non_negative_difference<span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> derivative<span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> non_negative_derivative<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 <span class="token keyword">limit</span> <span class="token number">5</span> <span class="token keyword">offset</span> <span class="token number">1000</span><span class="token punctuation">;</span> |
| |
| <span class="token keyword">SELECT</span> DIFF<span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> DIFF<span class="token punctuation">(</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">;</span> |
| <span class="token keyword">SELECT</span> DIFF<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">'ignoreNull'</span><span class="token operator">=</span><span class="token string">'false'</span><span class="token punctuation">)</span><span class="token punctuation">,</span> DIFF<span class="token punctuation">(</span>s2<span class="token punctuation">,</span> <span class="token string">'ignoreNull'</span><span class="token operator">=</span><span class="token string">'false'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="sample-functions" tabindex="-1"><a class="header-anchor" href="#sample-functions" aria-hidden="true">#</a> Sample Functions</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#sample-functions" class="">Sample Functions</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> equal_size_bucket_random_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span><span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> random_sample <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">;</span> |
| <span class="token keyword">select</span> equal_size_bucket_agg_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'type'</span><span class="token operator">=</span><span class="token string">'avg'</span><span class="token punctuation">,</span><span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> agg_avg<span class="token punctuation">,</span> equal_size_bucket_agg_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'type'</span><span class="token operator">=</span><span class="token string">'max'</span><span class="token punctuation">,</span><span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> agg_max<span class="token punctuation">,</span> equal_size_bucket_agg_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span><span class="token string">'type'</span><span class="token operator">=</span><span class="token string">'min'</span><span class="token punctuation">,</span><span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> agg_min<span class="token punctuation">,</span> equal_size_bucket_agg_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'type'</span><span class="token operator">=</span><span class="token string">'sum'</span><span class="token punctuation">,</span><span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> agg_sum<span class="token punctuation">,</span> equal_size_bucket_agg_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'type'</span><span class="token operator">=</span><span class="token string">'extreme'</span><span class="token punctuation">,</span><span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> agg_extreme<span class="token punctuation">,</span> equal_size_bucket_agg_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'type'</span><span class="token operator">=</span><span class="token string">'variance'</span><span class="token punctuation">,</span><span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> agg_variance <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">;</span> |
| <span class="token keyword">select</span> equal_size_bucket_m4_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> M4_sample <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">;</span> |
| <span class="token keyword">select</span> equal_size_bucket_outlier_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">,</span> <span class="token string">'type'</span><span class="token operator">=</span><span class="token string">'avg'</span><span class="token punctuation">,</span> <span class="token string">'number'</span><span class="token operator">=</span><span class="token string">'2'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> outlier_avg_sample<span class="token punctuation">,</span> equal_size_bucket_outlier_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">,</span> <span class="token string">'type'</span><span class="token operator">=</span><span class="token string">'stendis'</span><span class="token punctuation">,</span> <span class="token string">'number'</span><span class="token operator">=</span><span class="token string">'2'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> outlier_stendis_sample<span class="token punctuation">,</span> equal_size_bucket_outlier_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">,</span> <span class="token string">'type'</span><span class="token operator">=</span><span class="token string">'cos'</span><span class="token punctuation">,</span> <span class="token string">'number'</span><span class="token operator">=</span><span class="token string">'2'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> outlier_cos_sample<span class="token punctuation">,</span> equal_size_bucket_outlier_sample<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'proportion'</span><span class="token operator">=</span><span class="token string">'0.1'</span><span class="token punctuation">,</span> <span class="token string">'type'</span><span class="token operator">=</span><span class="token string">'prenextdis'</span><span class="token punctuation">,</span> <span class="token string">'number'</span><span class="token operator">=</span><span class="token string">'2'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> outlier_prenextdis_sample <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">;</span> |
| |
| <span class="token keyword">select</span> M4<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'timeInterval'</span><span class="token operator">=</span><span class="token string">'25'</span><span class="token punctuation">,</span><span class="token string">'displayWindowBegin'</span><span class="token operator">=</span><span class="token string">'0'</span><span class="token punctuation">,</span><span class="token string">'displayWindowEnd'</span><span class="token operator">=</span><span class="token string">'100'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>vehicle<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> M4<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'windowSize'</span><span class="token operator">=</span><span class="token string">'10'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>vehicle<span class="token punctuation">.</span>d1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="change-points-function" tabindex="-1"><a class="header-anchor" href="#change-points-function" aria-hidden="true">#</a> Change Points Function</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Reference/Function-and-Expression.html#time-series-processing" class="">Time-Series</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> change_points<span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">,</span> change_points<span class="token punctuation">(</span>s2<span class="token punctuation">)</span><span class="token punctuation">,</span> change_points<span class="token punctuation">(</span>s3<span class="token punctuation">)</span><span class="token punctuation">,</span> change_points<span class="token punctuation">(</span>s4<span class="token punctuation">)</span><span class="token punctuation">,</span> change_points<span class="token punctuation">(</span>s5<span class="token punctuation">)</span><span class="token punctuation">,</span> change_points<span class="token punctuation">(</span>s6<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>testChangePoints<span class="token punctuation">.</span>d1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h2 id="data-quality-function-library" tabindex="-1"><a class="header-anchor" href="#data-quality-function-library" aria-hidden="true">#</a> DATA QUALITY FUNCTION LIBRARY</h2><p>For more details, see document <a href="/UserGuide/latest/Reference/Function-and-Expression.html" class="">Operator-and-Expression</a>.</p><h3 id="data-quality" tabindex="-1"><a class="header-anchor" href="#data-quality" aria-hidden="true">#</a> Data Quality</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Operators-Functions/Data-Quality.html" class="">Data-Quality</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token comment"># Completeness</span> |
| <span class="token keyword">select</span> completeness<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">30</span> |
| <span class="token keyword">select</span> completeness<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">"window"</span><span class="token operator">=</span><span class="token string">"15"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">01</span>:<span class="token number">00</span> |
| |
| <span class="token comment"># Consistency</span> |
| <span class="token keyword">select</span> consistency<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">30</span> |
| <span class="token keyword">select</span> consistency<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">"window"</span><span class="token operator">=</span><span class="token string">"15"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">01</span>:<span class="token number">00</span> |
| |
| <span class="token comment"># Timeliness</span> |
| <span class="token keyword">select</span> timeliness<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">30</span> |
| <span class="token keyword">select</span> timeliness<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">"window"</span><span class="token operator">=</span><span class="token string">"15"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">01</span>:<span class="token number">00</span> |
| |
| <span class="token comment"># Validity</span> |
| <span class="token keyword">select</span> Validity<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">30</span> |
| <span class="token keyword">select</span> Validity<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">"window"</span><span class="token operator">=</span><span class="token string">"15"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">01</span>:<span class="token number">00</span> |
| |
| <span class="token comment"># Accuracy</span> |
| <span class="token keyword">select</span> Accuracy<span class="token punctuation">(</span>t1<span class="token punctuation">,</span>t2<span class="token punctuation">,</span>t3<span class="token punctuation">,</span>m1<span class="token punctuation">,</span>m2<span class="token punctuation">,</span>m3<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="data-profiling" tabindex="-1"><a class="header-anchor" href="#data-profiling" aria-hidden="true">#</a> Data Profiling</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Operators-Functions/Data-Profiling.html" class="">Data-Profiling</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token comment"># ACF</span> |
| <span class="token keyword">select</span> acf<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">05</span> |
| |
| <span class="token comment"># Distinct</span> |
| <span class="token keyword">select</span> <span class="token keyword">distinct</span><span class="token punctuation">(</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| |
| <span class="token comment"># Histogram</span> |
| <span class="token keyword">select</span> histogram<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">"min"</span><span class="token operator">=</span><span class="token string">"1"</span><span class="token punctuation">,</span><span class="token string">"max"</span><span class="token operator">=</span><span class="token string">"20"</span><span class="token punctuation">,</span><span class="token string">"count"</span><span class="token operator">=</span><span class="token string">"10"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># Integral</span> |
| <span class="token keyword">select</span> integral<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">10</span> |
| <span class="token keyword">select</span> integral<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"unit"</span><span class="token operator">=</span><span class="token string">"1m"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">10</span> |
| |
| <span class="token comment"># IntegralAvg</span> |
| <span class="token keyword">select</span> integralavg<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">10</span> |
| |
| <span class="token comment"># Mad</span> |
| <span class="token keyword">select</span> mad<span class="token punctuation">(</span>s0<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| <span class="token keyword">select</span> mad<span class="token punctuation">(</span>s0<span class="token punctuation">,</span> <span class="token string">"error"</span><span class="token operator">=</span><span class="token string">"0.01"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># Median</span> |
| <span class="token keyword">select</span> median<span class="token punctuation">(</span>s0<span class="token punctuation">,</span> <span class="token string">"error"</span><span class="token operator">=</span><span class="token string">"0.01"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># MinMax</span> |
| <span class="token keyword">select</span> minmax<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># Mode</span> |
| <span class="token keyword">select</span> <span class="token keyword">mode</span><span class="token punctuation">(</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| |
| <span class="token comment"># MvAvg</span> |
| <span class="token keyword">select</span> mvavg<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"window"</span><span class="token operator">=</span><span class="token string">"3"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># PACF</span> |
| <span class="token keyword">select</span> pacf<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"lag"</span><span class="token operator">=</span><span class="token string">"5"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># Percentile</span> |
| <span class="token keyword">select</span> percentile<span class="token punctuation">(</span>s0<span class="token punctuation">,</span> <span class="token string">"rank"</span><span class="token operator">=</span><span class="token string">"0.2"</span><span class="token punctuation">,</span> <span class="token string">"error"</span><span class="token operator">=</span><span class="token string">"0.01"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># Quantile</span> |
| <span class="token keyword">select</span> quantile<span class="token punctuation">(</span>s0<span class="token punctuation">,</span> <span class="token string">"rank"</span><span class="token operator">=</span><span class="token string">"0.2"</span><span class="token punctuation">,</span> <span class="token string">"K"</span><span class="token operator">=</span><span class="token string">"800"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># Period</span> |
| <span class="token keyword">select</span> period<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d3 |
| |
| <span class="token comment"># QLB</span> |
| <span class="token keyword">select</span> QLB<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># Resample</span> |
| <span class="token keyword">select</span> resample<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'every'</span><span class="token operator">=</span><span class="token string">'5m'</span><span class="token punctuation">,</span><span class="token string">'interp'</span><span class="token operator">=</span><span class="token string">'linear'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> resample<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'every'</span><span class="token operator">=</span><span class="token string">'30m'</span><span class="token punctuation">,</span><span class="token string">'aggr'</span><span class="token operator">=</span><span class="token string">'first'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> resample<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'every'</span><span class="token operator">=</span><span class="token string">'30m'</span><span class="token punctuation">,</span><span class="token string">'start'</span><span class="token operator">=</span><span class="token string">'2021-03-06 15:00:00'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># Sample</span> |
| <span class="token keyword">select</span> sample<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'method'</span><span class="token operator">=</span><span class="token string">'reservoir'</span><span class="token punctuation">,</span><span class="token string">'k'</span><span class="token operator">=</span><span class="token string">'5'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> sample<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'method'</span><span class="token operator">=</span><span class="token string">'isometric'</span><span class="token punctuation">,</span><span class="token string">'k'</span><span class="token operator">=</span><span class="token string">'5'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># Segment</span> |
| <span class="token keyword">select</span> segment<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"error"</span><span class="token operator">=</span><span class="token string">"0.1"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># Skew</span> |
| <span class="token keyword">select</span> skew<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># Spline</span> |
| <span class="token keyword">select</span> spline<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"points"</span><span class="token operator">=</span><span class="token string">"151"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># Spread</span> |
| <span class="token keyword">select</span> spread<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">30</span> |
| |
| <span class="token comment"># Stddev</span> |
| <span class="token keyword">select</span> stddev<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># ZScore</span> |
| <span class="token keyword">select</span> zscore<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="anomaly-detection" tabindex="-1"><a class="header-anchor" href="#anomaly-detection" aria-hidden="true">#</a> Anomaly Detection</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Operators-Functions/Anomaly-Detection.html" class="">Anomaly-Detection</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token comment"># IQR</span> |
| <span class="token keyword">select</span> iqr<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># KSigma</span> |
| <span class="token keyword">select</span> ksigma<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">"k"</span><span class="token operator">=</span><span class="token string">"1.0"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">30</span> |
| |
| <span class="token comment"># LOF</span> |
| <span class="token keyword">select</span> lof<span class="token punctuation">(</span>s1<span class="token punctuation">,</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span><span class="token operator"><</span><span class="token number">1000</span> |
| <span class="token keyword">select</span> lof<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">"method"</span><span class="token operator">=</span><span class="token string">"series"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span><span class="token operator"><</span><span class="token number">1000</span> |
| |
| <span class="token comment"># MissDetect</span> |
| <span class="token keyword">select</span> missdetect<span class="token punctuation">(</span>s2<span class="token punctuation">,</span><span class="token string">'minlen'</span><span class="token operator">=</span><span class="token string">'10'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| |
| <span class="token comment"># Range</span> |
| <span class="token keyword">select</span> range<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">"lower_bound"</span><span class="token operator">=</span><span class="token string">"101.0"</span><span class="token punctuation">,</span><span class="token string">"upper_bound"</span><span class="token operator">=</span><span class="token string">"125.0"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">30</span> |
| |
| <span class="token comment"># TwoSidedFilter</span> |
| <span class="token keyword">select</span> TwoSidedFilter<span class="token punctuation">(</span>s0<span class="token punctuation">,</span> <span class="token string">'len'</span><span class="token operator">=</span><span class="token string">'5'</span><span class="token punctuation">,</span> <span class="token string">'threshold'</span><span class="token operator">=</span><span class="token string">'0.3'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># Outlier</span> |
| <span class="token keyword">select</span> outlier<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">"r"</span><span class="token operator">=</span><span class="token string">"5.0"</span><span class="token punctuation">,</span><span class="token string">"k"</span><span class="token operator">=</span><span class="token string">"4"</span><span class="token punctuation">,</span><span class="token string">"w"</span><span class="token operator">=</span><span class="token string">"10"</span><span class="token punctuation">,</span><span class="token string">"s"</span><span class="token operator">=</span><span class="token string">"5"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># MasterTrain</span> |
| <span class="token keyword">select</span> MasterTrain<span class="token punctuation">(</span>lo<span class="token punctuation">,</span>la<span class="token punctuation">,</span>m_lo<span class="token punctuation">,</span>m_la<span class="token punctuation">,</span><span class="token string">'p'</span><span class="token operator">=</span><span class="token string">'3'</span><span class="token punctuation">,</span><span class="token string">'eta'</span><span class="token operator">=</span><span class="token string">'1.0'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># MasterDetect</span> |
| <span class="token keyword">select</span> MasterDetect<span class="token punctuation">(</span>lo<span class="token punctuation">,</span>la<span class="token punctuation">,</span>m_lo<span class="token punctuation">,</span>m_la<span class="token punctuation">,</span>model<span class="token punctuation">,</span><span class="token string">'output_type'</span><span class="token operator">=</span><span class="token string">'repair'</span><span class="token punctuation">,</span><span class="token string">'p'</span><span class="token operator">=</span><span class="token string">'3'</span><span class="token punctuation">,</span><span class="token string">'k'</span><span class="token operator">=</span><span class="token string">'3'</span><span class="token punctuation">,</span><span class="token string">'eta'</span><span class="token operator">=</span><span class="token string">'1.0'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| <span class="token keyword">select</span> MasterDetect<span class="token punctuation">(</span>lo<span class="token punctuation">,</span>la<span class="token punctuation">,</span>m_lo<span class="token punctuation">,</span>m_la<span class="token punctuation">,</span>model<span class="token punctuation">,</span><span class="token string">'output_type'</span><span class="token operator">=</span><span class="token string">'anomaly'</span><span class="token punctuation">,</span><span class="token string">'p'</span><span class="token operator">=</span><span class="token string">'3'</span><span class="token punctuation">,</span><span class="token string">'k'</span><span class="token operator">=</span><span class="token string">'3'</span><span class="token punctuation">,</span><span class="token string">'eta'</span><span class="token operator">=</span><span class="token string">'1.0'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="frequency-domain" tabindex="-1"><a class="header-anchor" href="#frequency-domain" aria-hidden="true">#</a> Frequency Domain</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Operators-Functions/Frequency-Domain.html" class="">Frequency-Domain</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token comment"># Conv</span> |
| <span class="token keyword">select</span> conv<span class="token punctuation">(</span>s1<span class="token punctuation">,</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| |
| <span class="token comment"># Deconv</span> |
| <span class="token keyword">select</span> deconv<span class="token punctuation">(</span>s3<span class="token punctuation">,</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| <span class="token keyword">select</span> deconv<span class="token punctuation">(</span>s3<span class="token punctuation">,</span>s2<span class="token punctuation">,</span><span class="token string">'result'</span><span class="token operator">=</span><span class="token string">'remainder'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| |
| <span class="token comment"># DWT</span> |
| <span class="token keyword">select</span> dwt<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">"method"</span><span class="token operator">=</span><span class="token string">"haar"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># FFT</span> |
| <span class="token keyword">select</span> fft<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> fft<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">'result'</span><span class="token operator">=</span><span class="token string">'real'</span><span class="token punctuation">,</span> <span class="token string">'compress'</span><span class="token operator">=</span><span class="token string">'0.99'</span><span class="token punctuation">)</span><span class="token punctuation">,</span> fft<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">'result'</span><span class="token operator">=</span><span class="token string">'imag'</span><span class="token punctuation">,</span><span class="token string">'compress'</span><span class="token operator">=</span><span class="token string">'0.99'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># HighPass</span> |
| <span class="token keyword">select</span> highpass<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'wpass'</span><span class="token operator">=</span><span class="token string">'0.45'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># IFFT</span> |
| <span class="token keyword">select</span> ifft<span class="token punctuation">(</span>re<span class="token punctuation">,</span> im<span class="token punctuation">,</span> <span class="token string">'interval'</span><span class="token operator">=</span><span class="token string">'1m'</span><span class="token punctuation">,</span> <span class="token string">'start'</span><span class="token operator">=</span><span class="token string">'2021-01-01 00:00:00'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># LowPass</span> |
| <span class="token keyword">select</span> lowpass<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'wpass'</span><span class="token operator">=</span><span class="token string">'0.45'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="data-matching" tabindex="-1"><a class="header-anchor" href="#data-matching" aria-hidden="true">#</a> Data Matching</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Operators-Functions/Data-Matching.html" class="">Data-Matching</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token comment"># Cov</span> |
| <span class="token keyword">select</span> cov<span class="token punctuation">(</span>s1<span class="token punctuation">,</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| |
| <span class="token comment"># DTW</span> |
| <span class="token keyword">select</span> dtw<span class="token punctuation">(</span>s1<span class="token punctuation">,</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| |
| <span class="token comment"># Pearson</span> |
| <span class="token keyword">select</span> pearson<span class="token punctuation">(</span>s1<span class="token punctuation">,</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| |
| <span class="token comment"># PtnSym</span> |
| <span class="token keyword">select</span> ptnsym<span class="token punctuation">(</span>s4<span class="token punctuation">,</span> <span class="token string">'window'</span><span class="token operator">=</span><span class="token string">'5'</span><span class="token punctuation">,</span> <span class="token string">'threshold'</span><span class="token operator">=</span><span class="token string">'0'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># XCorr</span> |
| <span class="token keyword">select</span> xcorr<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 <span class="token keyword">where</span> <span class="token keyword">time</span> <span class="token operator"><=</span> <span class="token number">2020</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">00</span>:<span class="token number">00</span>:<span class="token number">05</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="data-repairing" tabindex="-1"><a class="header-anchor" href="#data-repairing" aria-hidden="true">#</a> Data Repairing</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Operators-Functions/Data-Repairing.html" class="">Data-Repairing</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token comment"># TimestampRepair</span> |
| <span class="token keyword">select</span> timestamprepair<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'interval'</span><span class="token operator">=</span><span class="token string">'10000'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| <span class="token keyword">select</span> timestamprepair<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| |
| <span class="token comment"># ValueFill</span> |
| <span class="token keyword">select</span> valuefill<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| <span class="token keyword">select</span> valuefill<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">"method"</span><span class="token operator">=</span><span class="token string">"previous"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| |
| <span class="token comment"># ValueRepair</span> |
| <span class="token keyword">select</span> valuerepair<span class="token punctuation">(</span>s1<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| <span class="token keyword">select</span> valuerepair<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'method'</span><span class="token operator">=</span><span class="token string">'LsGreedy'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| |
| <span class="token comment"># MasterRepair</span> |
| <span class="token keyword">select</span> MasterRepair<span class="token punctuation">(</span>t1<span class="token punctuation">,</span>t2<span class="token punctuation">,</span>t3<span class="token punctuation">,</span>m1<span class="token punctuation">,</span>m2<span class="token punctuation">,</span>m3<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test |
| |
| <span class="token comment"># SeasonalRepair</span> |
| <span class="token keyword">select</span> seasonalrepair<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'period'</span><span class="token operator">=</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token string">'k'</span><span class="token operator">=</span><span class="token number">2</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| <span class="token keyword">select</span> seasonalrepair<span class="token punctuation">(</span>s1<span class="token punctuation">,</span><span class="token string">'method'</span><span class="token operator">=</span><span class="token string">'improved'</span><span class="token punctuation">,</span><span class="token string">'period'</span><span class="token operator">=</span><span class="token number">3</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d2 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="series-discovery" tabindex="-1"><a class="header-anchor" href="#series-discovery" aria-hidden="true">#</a> Series Discovery</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Operators-Functions/Series-Discovery.html" class="">Series-Discovery</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token comment"># ConsecutiveSequences</span> |
| <span class="token keyword">select</span> consecutivesequences<span class="token punctuation">(</span>s1<span class="token punctuation">,</span>s2<span class="token punctuation">,</span><span class="token string">'gap'</span><span class="token operator">=</span><span class="token string">'5m'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> consecutivesequences<span class="token punctuation">(</span>s1<span class="token punctuation">,</span>s2<span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| |
| <span class="token comment"># ConsecutiveWindows</span> |
| <span class="token keyword">select</span> consecutivewindows<span class="token punctuation">(</span>s1<span class="token punctuation">,</span>s2<span class="token punctuation">,</span><span class="token string">'length'</span><span class="token operator">=</span><span class="token string">'10m'</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="machine-learning" tabindex="-1"><a class="header-anchor" href="#machine-learning" aria-hidden="true">#</a> Machine Learning</h3><p>For details and examples, see the document <a href="/UserGuide/latest/Operators-Functions/Machine-Learning.html" class="">Machine-Learning</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token comment"># AR</span> |
| <span class="token keyword">select</span> ar<span class="token punctuation">(</span>s0<span class="token punctuation">,</span><span class="token string">"p"</span><span class="token operator">=</span><span class="token string">"2"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d0 |
| |
| <span class="token comment"># Representation</span> |
| <span class="token keyword">select</span> representation<span class="token punctuation">(</span>s0<span class="token punctuation">,</span><span class="token string">"tb"</span><span class="token operator">=</span><span class="token string">"3"</span><span class="token punctuation">,</span><span class="token string">"vb"</span><span class="token operator">=</span><span class="token string">"2"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d0 |
| |
| <span class="token comment"># RM</span> |
| <span class="token keyword">select</span> rm<span class="token punctuation">(</span>s0<span class="token punctuation">,</span> s1<span class="token punctuation">,</span><span class="token string">"tb"</span><span class="token operator">=</span><span class="token string">"3"</span><span class="token punctuation">,</span><span class="token string">"vb"</span><span class="token operator">=</span><span class="token string">"2"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d0 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="lambda-expression" tabindex="-1"><a class="header-anchor" href="#lambda-expression" aria-hidden="true">#</a> LAMBDA EXPRESSION</h2><p>For details and examples, see the document <a href="/UserGuide/latest/Operators-Functions/Lambda.html" class="">Lambda</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> jexl<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'expr'</span><span class="token operator">=</span><span class="token string">'x -> {x + x}'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> jexl1<span class="token punctuation">,</span> jexl<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'expr'</span><span class="token operator">=</span><span class="token string">'x -> {x * 3}'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> jexl2<span class="token punctuation">,</span> jexl<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'expr'</span><span class="token operator">=</span><span class="token string">'x -> {x * x}'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> jexl3<span class="token punctuation">,</span> jexl<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> <span class="token string">'expr'</span><span class="token operator">=</span><span class="token string">'x -> {multiply(x, 100)}'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> jexl4<span class="token punctuation">,</span> jexl<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> st<span class="token punctuation">,</span> <span class="token string">'expr'</span><span class="token operator">=</span><span class="token string">'(x, y) -> {x + y}'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> jexl5<span class="token punctuation">,</span> jexl<span class="token punctuation">(</span>temperature<span class="token punctuation">,</span> st<span class="token punctuation">,</span> str<span class="token punctuation">,</span> <span class="token string">'expr'</span><span class="token operator">=</span><span class="token string">'(x, y, z) -> {x + y + z}'</span><span class="token punctuation">)</span> <span class="token keyword">as</span> jexl6 <span class="token keyword">from</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">;</span><span class="token identifier"><span class="token punctuation">`</span><span class="token punctuation">`</span></span><span class="token punctuation">`</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h2 id="conditional-expression" tabindex="-1"><a class="header-anchor" href="#conditional-expression" aria-hidden="true">#</a> CONDITIONAL EXPRESSION</h2><p>For details and examples, see the document <a href="/UserGuide/latest/Operators-Functions/Conditional.html" class="">Conditional Expressions</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> T<span class="token punctuation">,</span> P<span class="token punctuation">,</span> <span class="token keyword">case</span> |
| <span class="token keyword">when</span> <span class="token number">1000</span><span class="token operator"><</span>T <span class="token operator">and</span> T<span class="token operator"><</span><span class="token number">1050</span> <span class="token operator">and</span> <span class="token number">1000000</span><span class="token operator"><</span>P <span class="token operator">and</span> P<span class="token operator"><</span><span class="token number">1100000</span> <span class="token keyword">then</span> <span class="token string">"good!"</span> |
| <span class="token keyword">when</span> T<span class="token operator"><=</span><span class="token number">1000</span> <span class="token operator">or</span> T<span class="token operator">>=</span><span class="token number">1050</span> <span class="token keyword">then</span> <span class="token string">"bad temperature"</span> |
| <span class="token keyword">when</span> P<span class="token operator"><=</span><span class="token number">1000000</span> <span class="token operator">or</span> P<span class="token operator">>=</span><span class="token number">1100000</span> <span class="token keyword">then</span> <span class="token string">"bad pressure"</span> |
| <span class="token keyword">end</span> <span class="token keyword">as</span> <span class="token identifier"><span class="token punctuation">`</span>result<span class="token punctuation">`</span></span> |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span>test1 |
| |
| <span class="token keyword">select</span> str<span class="token punctuation">,</span> <span class="token keyword">case</span> |
| <span class="token keyword">when</span> str <span class="token operator">like</span> <span class="token string">"%cc%"</span> <span class="token keyword">then</span> <span class="token string">"has cc"</span> |
| <span class="token keyword">when</span> str <span class="token operator">like</span> <span class="token string">"%dd%"</span> <span class="token keyword">then</span> <span class="token string">"has dd"</span> |
| <span class="token keyword">else</span> <span class="token string">"no cc and dd"</span> <span class="token keyword">end</span> <span class="token keyword">as</span> <span class="token identifier"><span class="token punctuation">`</span>result<span class="token punctuation">`</span></span> |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span>test2 |
| |
| <span class="token keyword">select</span> |
| <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">case</span> <span class="token keyword">when</span> x<span class="token operator"><=</span><span class="token number">1</span> <span class="token keyword">then</span> <span class="token number">1</span> <span class="token keyword">end</span><span class="token punctuation">)</span> <span class="token keyword">as</span> <span class="token identifier"><span class="token punctuation">`</span>(-∞,1]<span class="token punctuation">`</span></span><span class="token punctuation">,</span> |
| <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">case</span> <span class="token keyword">when</span> <span class="token number">1</span><span class="token operator"><</span>x <span class="token operator">and</span> x<span class="token operator"><=</span><span class="token number">3</span> <span class="token keyword">then</span> <span class="token number">1</span> <span class="token keyword">end</span><span class="token punctuation">)</span> <span class="token keyword">as</span> <span class="token identifier"><span class="token punctuation">`</span>(1,3]<span class="token punctuation">`</span></span><span class="token punctuation">,</span> |
| <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">case</span> <span class="token keyword">when</span> <span class="token number">3</span><span class="token operator"><</span>x <span class="token operator">and</span> x<span class="token operator"><=</span><span class="token number">7</span> <span class="token keyword">then</span> <span class="token number">1</span> <span class="token keyword">end</span><span class="token punctuation">)</span> <span class="token keyword">as</span> <span class="token identifier"><span class="token punctuation">`</span>(3,7]<span class="token punctuation">`</span></span><span class="token punctuation">,</span> |
| <span class="token function">count</span><span class="token punctuation">(</span><span class="token keyword">case</span> <span class="token keyword">when</span> <span class="token number">7</span><span class="token operator"><</span>x <span class="token keyword">then</span> <span class="token number">1</span> <span class="token keyword">end</span><span class="token punctuation">)</span> <span class="token keyword">as</span> <span class="token identifier"><span class="token punctuation">`</span>(7,+∞)<span class="token punctuation">`</span></span> |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span>test3 |
| |
| <span class="token keyword">select</span> x<span class="token punctuation">,</span> <span class="token keyword">case</span> x <span class="token keyword">when</span> <span class="token number">1</span> <span class="token keyword">then</span> <span class="token string">"one"</span> <span class="token keyword">when</span> <span class="token number">2</span> <span class="token keyword">then</span> <span class="token string">"two"</span> <span class="token keyword">else</span> <span class="token string">"other"</span> <span class="token keyword">end</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test4 |
| |
| <span class="token keyword">select</span> x<span class="token punctuation">,</span> <span class="token keyword">case</span> x <span class="token keyword">when</span> <span class="token number">1</span> <span class="token keyword">then</span> <span class="token boolean">true</span> <span class="token keyword">when</span> <span class="token number">2</span> <span class="token keyword">then</span> <span class="token boolean">false</span> <span class="token keyword">end</span> <span class="token keyword">as</span> <span class="token identifier"><span class="token punctuation">`</span>result<span class="token punctuation">`</span></span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test4 |
| |
| <span class="token keyword">select</span> x<span class="token punctuation">,</span> <span class="token keyword">case</span> x |
| <span class="token keyword">when</span> <span class="token number">1</span> <span class="token keyword">then</span> <span class="token number">1</span> |
| <span class="token keyword">when</span> <span class="token number">2</span> <span class="token keyword">then</span> <span class="token number">222222222222222</span> |
| <span class="token keyword">when</span> <span class="token number">3</span> <span class="token keyword">then</span> <span class="token number">3.3</span> |
| <span class="token keyword">when</span> <span class="token number">4</span> <span class="token keyword">then</span> <span class="token number">4.4444444444444</span> |
| <span class="token keyword">end</span> <span class="token keyword">as</span> <span class="token identifier"><span class="token punctuation">`</span>result<span class="token punctuation">`</span></span> |
| <span class="token keyword">from</span> root<span class="token punctuation">.</span>test4 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="trigger" tabindex="-1"><a class="header-anchor" href="#trigger" aria-hidden="true">#</a> TRIGGER</h2><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Database-Programming.html" class="">Database-Programming</a>.</p><h3 id="create-trigger" tabindex="-1"><a class="header-anchor" href="#create-trigger" aria-hidden="true">#</a> Create Trigger</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token comment">// Create Trigger</span> |
| createTrigger |
| : <span class="token keyword">CREATE</span> triggerType <span class="token keyword">TRIGGER</span> triggerName<span class="token operator">=</span>identifier triggerEventClause <span class="token keyword">ON</span> pathPattern <span class="token keyword">AS</span> className<span class="token operator">=</span>STRING_LITERAL uriClause? triggerAttributeClause? |
| <span class="token punctuation">;</span> |
| |
| triggerType |
| : STATELESS <span class="token operator">|</span> STATEFUL |
| <span class="token punctuation">;</span> |
| |
| triggerEventClause |
| : <span class="token punctuation">(</span>BEFORE <span class="token operator">|</span> <span class="token keyword">AFTER</span><span class="token punctuation">)</span> <span class="token keyword">INSERT</span> |
| <span class="token punctuation">;</span> |
| |
| uriClause |
| : <span class="token keyword">USING</span> URI uri |
| <span class="token punctuation">;</span> |
| |
| uri |
| : STRING_LITERAL |
| <span class="token punctuation">;</span> |
| |
| triggerAttributeClause |
| : <span class="token keyword">WITH</span> LR_BRACKET triggerAttribute <span class="token punctuation">(</span>COMMA triggerAttribute<span class="token punctuation">)</span><span class="token operator">*</span> RR_BRACKET |
| <span class="token punctuation">;</span> |
| |
| triggerAttribute |
| : <span class="token keyword">key</span><span class="token operator">=</span>attributeKey operator_eq <span class="token keyword">value</span><span class="token operator">=</span>attributeValue |
| <span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="drop-trigger" tabindex="-1"><a class="header-anchor" href="#drop-trigger" aria-hidden="true">#</a> Drop Trigger</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token comment">// Drop Trigger</span> |
| dropTrigger |
| : <span class="token keyword">DROP</span> <span class="token keyword">TRIGGER</span> triggerName<span class="token operator">=</span>identifier |
| <span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="show-trigger" tabindex="-1"><a class="header-anchor" href="#show-trigger" aria-hidden="true">#</a> Show Trigger</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">SHOW</span> TRIGGERS |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h2 id="continuous-query-cq" tabindex="-1"><a class="header-anchor" href="#continuous-query-cq" aria-hidden="true">#</a> CONTINUOUS QUERY (CQ)</h2><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Operator-and-Expression.html" class="">Operator-and-Expression</a>.</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">CREATE</span> <span class="token punctuation">(</span>CONTINUOUS QUERY <span class="token operator">|</span> CQ<span class="token punctuation">)</span> <span class="token operator"><</span>cq_id<span class="token operator">></span> |
| <span class="token punctuation">[</span>RESAMPLE |
| <span class="token punctuation">[</span>EVERY <span class="token operator"><</span>every_interval<span class="token operator">></span><span class="token punctuation">]</span> |
| <span class="token punctuation">[</span>BOUNDARY <span class="token operator"><</span>execution_boundary_time<span class="token operator">></span><span class="token punctuation">]</span> |
| <span class="token punctuation">[</span>RANGE <span class="token operator"><</span>start_time_offset<span class="token operator">></span><span class="token punctuation">[</span><span class="token punctuation">,</span> end_time_offset<span class="token punctuation">]</span><span class="token punctuation">]</span> |
| <span class="token punctuation">]</span> |
| <span class="token punctuation">[</span>TIMEOUT POLICY BLOCKED<span class="token operator">|</span><span class="token keyword">DISCARD</span><span class="token punctuation">]</span> |
| <span class="token keyword">BEGIN</span> |
| <span class="token keyword">SELECT</span> CLAUSE |
| <span class="token keyword">INTO</span> CLAUSE |
| <span class="token keyword">FROM</span> CLAUSE |
| <span class="token punctuation">[</span><span class="token keyword">WHERE</span> CLAUSE<span class="token punctuation">]</span> |
| <span class="token punctuation">[</span><span class="token keyword">GROUP</span> <span class="token keyword">BY</span><span class="token punctuation">(</span><span class="token operator"><</span>group_by_interval<span class="token operator">></span><span class="token punctuation">[</span><span class="token punctuation">,</span> <span class="token operator"><</span>sliding_step<span class="token operator">></span><span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token punctuation">[</span><span class="token punctuation">,</span> <span class="token keyword">level</span> <span class="token operator">=</span> <span class="token operator"><</span><span class="token keyword">level</span><span class="token operator">></span><span class="token punctuation">]</span><span class="token punctuation">]</span> |
| <span class="token punctuation">[</span><span class="token keyword">HAVING</span> CLAUSE<span class="token punctuation">]</span> |
| <span class="token punctuation">[</span>FILL {PREVIOUS <span class="token operator">|</span> LINEAR <span class="token operator">|</span> constant}<span class="token punctuation">]</span> |
| <span class="token punctuation">[</span><span class="token keyword">LIMIT</span> rowLimit <span class="token keyword">OFFSET</span> rowOffset<span class="token punctuation">]</span> |
| <span class="token punctuation">[</span>ALIGN <span class="token keyword">BY</span> DEVICE<span class="token punctuation">]</span> |
| <span class="token keyword">END</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="configuring-execution-intervals" tabindex="-1"><a class="header-anchor" href="#configuring-execution-intervals" aria-hidden="true">#</a> Configuring execution intervals</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">CREATE</span> CONTINUOUS QUERY cq1 |
| RESAMPLE EVERY <span class="token number">20</span>s |
| <span class="token keyword">BEGIN</span> |
| <span class="token keyword">SELECT</span> max_value<span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> |
| <span class="token keyword">INTO</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt01<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span> |
| <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token punctuation">.</span><span class="token operator">*</span> |
| <span class="token keyword">GROUP</span> <span class="token keyword">BY</span><span class="token punctuation">(</span><span class="token number">10</span>s<span class="token punctuation">)</span> |
| <span class="token keyword">END</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="configuring-time-range-for-resampling" tabindex="-1"><a class="header-anchor" href="#configuring-time-range-for-resampling" aria-hidden="true">#</a> Configuring time range for resampling</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">CREATE</span> CONTINUOUS QUERY cq2 |
| RESAMPLE RANGE <span class="token number">40</span>s |
| <span class="token keyword">BEGIN</span> |
| <span class="token keyword">SELECT</span> max_value<span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> |
| <span class="token keyword">INTO</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt01<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span> |
| <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token punctuation">.</span><span class="token operator">*</span> |
| <span class="token keyword">GROUP</span> <span class="token keyword">BY</span><span class="token punctuation">(</span><span class="token number">10</span>s<span class="token punctuation">)</span> |
| <span class="token keyword">END</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="configuring-execution-intervals-and-cq-time-ranges" tabindex="-1"><a class="header-anchor" href="#configuring-execution-intervals-and-cq-time-ranges" aria-hidden="true">#</a> Configuring execution intervals and CQ time ranges</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">CREATE</span> CONTINUOUS QUERY cq3 |
| RESAMPLE EVERY <span class="token number">20</span>s RANGE <span class="token number">40</span>s |
| <span class="token keyword">BEGIN</span> |
| <span class="token keyword">SELECT</span> max_value<span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> |
| <span class="token keyword">INTO</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt01<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span> |
| <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token punctuation">.</span><span class="token operator">*</span> |
| <span class="token keyword">GROUP</span> <span class="token keyword">BY</span><span class="token punctuation">(</span><span class="token number">10</span>s<span class="token punctuation">)</span> |
| FILL<span class="token punctuation">(</span><span class="token number">100.0</span><span class="token punctuation">)</span> |
| <span class="token keyword">END</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="configuring-end-time-offset-for-cq-time-range" tabindex="-1"><a class="header-anchor" href="#configuring-end-time-offset-for-cq-time-range" aria-hidden="true">#</a> Configuring end_time_offset for CQ time range</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">CREATE</span> CONTINUOUS QUERY cq4 |
| RESAMPLE EVERY <span class="token number">20</span>s RANGE <span class="token number">40</span>s<span class="token punctuation">,</span> <span class="token number">20</span>s |
| <span class="token keyword">BEGIN</span> |
| <span class="token keyword">SELECT</span> max_value<span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> |
| <span class="token keyword">INTO</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt01<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt02<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">(</span>temperature_max<span class="token punctuation">)</span> |
| <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token punctuation">.</span><span class="token operator">*</span> |
| <span class="token keyword">GROUP</span> <span class="token keyword">BY</span><span class="token punctuation">(</span><span class="token number">10</span>s<span class="token punctuation">)</span> |
| FILL<span class="token punctuation">(</span><span class="token number">100.0</span><span class="token punctuation">)</span> |
| <span class="token keyword">END</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="cq-without-group-by-clause" tabindex="-1"><a class="header-anchor" href="#cq-without-group-by-clause" aria-hidden="true">#</a> CQ without group by clause</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">CREATE</span> CONTINUOUS QUERY cq5 |
| RESAMPLE EVERY <span class="token number">20</span>s |
| <span class="token keyword">BEGIN</span> |
| <span class="token keyword">SELECT</span> temperature <span class="token operator">+</span> <span class="token number">1</span> |
| <span class="token keyword">INTO</span> root<span class="token punctuation">.</span>precalculated_sg<span class="token punctuation">.</span>::<span class="token punctuation">(</span>temperature<span class="token punctuation">)</span> |
| <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span><span class="token operator">*</span><span class="token punctuation">.</span><span class="token operator">*</span> |
| align <span class="token keyword">by</span> device |
| <span class="token keyword">END</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="cq-management" tabindex="-1"><a class="header-anchor" href="#cq-management" aria-hidden="true">#</a> CQ Management</h3><h4 id="listing-continuous-queries" tabindex="-1"><a class="header-anchor" href="#listing-continuous-queries" aria-hidden="true">#</a> Listing continuous queries</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">SHOW</span> <span class="token punctuation">(</span>CONTINUOUS QUERIES <span class="token operator">|</span> CQS<span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="dropping-continuous-queries" tabindex="-1"><a class="header-anchor" href="#dropping-continuous-queries" aria-hidden="true">#</a> Dropping continuous queries</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">DROP</span> <span class="token punctuation">(</span>CONTINUOUS QUERY <span class="token operator">|</span> CQ<span class="token punctuation">)</span> <span class="token operator"><</span>cq_id<span class="token operator">></span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="altering-continuous-queries" tabindex="-1"><a class="header-anchor" href="#altering-continuous-queries" aria-hidden="true">#</a> Altering continuous queries</h4><p>CQs can't be altered once they're created. To change a CQ, you must <code>DROP</code> and re<code>CREATE</code> it with the updated settings.</p><h2 id="user-defined-function-udf" tabindex="-1"><a class="header-anchor" href="#user-defined-function-udf" aria-hidden="true">#</a> USER-DEFINED FUNCTION (UDF)</h2><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Operator-and-Expression.html" class="">Operator-and-Expression</a>.</p><h3 id="udf-registration" tabindex="-1"><a class="header-anchor" href="#udf-registration" aria-hidden="true">#</a> UDF Registration</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">CREATE</span> <span class="token keyword">FUNCTION</span> <span class="token operator"><</span>UDF<span class="token operator">-</span>NAME<span class="token operator">></span> <span class="token keyword">AS</span> <span class="token operator"><</span>UDF<span class="token operator">-</span>CLASS<span class="token operator">-</span><span class="token keyword">FULL</span><span class="token operator">-</span>PATHNAME<span class="token operator">></span> <span class="token punctuation">(</span><span class="token keyword">USING</span> URI URI<span class="token operator">-</span>STRING<span class="token punctuation">)</span>? |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="udf-deregistration" tabindex="-1"><a class="header-anchor" href="#udf-deregistration" aria-hidden="true">#</a> UDF Deregistration</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">DROP</span> <span class="token keyword">FUNCTION</span> <span class="token operator"><</span>UDF<span class="token operator">-</span>NAME<span class="token operator">></span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="udf-queries" tabindex="-1"><a class="header-anchor" href="#udf-queries" aria-hidden="true">#</a> UDF Queries</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">SELECT</span> example<span class="token punctuation">(</span><span class="token operator">*</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 |
| <span class="token keyword">SELECT</span> example<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token operator">*</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 |
| <span class="token keyword">SELECT</span> example<span class="token punctuation">(</span><span class="token operator">*</span><span class="token punctuation">,</span> <span class="token operator">*</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 |
| |
| <span class="token keyword">SELECT</span> example<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> <span class="token string">'key1'</span><span class="token operator">=</span><span class="token string">'value1'</span><span class="token punctuation">,</span> <span class="token string">'key2'</span><span class="token operator">=</span><span class="token string">'value2'</span><span class="token punctuation">)</span><span class="token punctuation">,</span> example<span class="token punctuation">(</span><span class="token operator">*</span><span class="token punctuation">,</span> <span class="token string">'key3'</span><span class="token operator">=</span><span class="token string">'value3'</span><span class="token punctuation">)</span> <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| <span class="token keyword">SELECT</span> example<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> <span class="token string">'key1'</span><span class="token operator">=</span><span class="token string">'value1'</span><span class="token punctuation">,</span> <span class="token string">'key2'</span><span class="token operator">=</span><span class="token string">'value2'</span><span class="token punctuation">)</span> <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| |
| <span class="token keyword">SELECT</span> s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> example<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> s2<span class="token punctuation">)</span> <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| <span class="token keyword">SELECT</span> <span class="token operator">*</span><span class="token punctuation">,</span> example<span class="token punctuation">(</span><span class="token operator">*</span><span class="token punctuation">)</span> <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1 <span class="token keyword">DISABLE</span> ALIGN<span class="token punctuation">;</span> |
| <span class="token keyword">SELECT</span> s1 <span class="token operator">*</span> example<span class="token punctuation">(</span><span class="token operator">*</span> <span class="token operator">/</span> s1 <span class="token operator">+</span> s2<span class="token punctuation">)</span> <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| <span class="token keyword">SELECT</span> s1<span class="token punctuation">,</span> s2<span class="token punctuation">,</span> s1 <span class="token operator">+</span> example<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> s2<span class="token punctuation">)</span><span class="token punctuation">,</span> s1 <span class="token operator">-</span> example<span class="token punctuation">(</span>s1 <span class="token operator">+</span> example<span class="token punctuation">(</span>s1<span class="token punctuation">,</span> s2<span class="token punctuation">)</span> <span class="token operator">/</span> s2<span class="token punctuation">)</span> <span class="token keyword">FROM</span> root<span class="token punctuation">.</span>sg<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="show-all-registered-udfs" tabindex="-1"><a class="header-anchor" href="#show-all-registered-udfs" aria-hidden="true">#</a> Show All Registered UDFs</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">SHOW</span> FUNCTIONS |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h2 id="administration-management" tabindex="-1"><a class="header-anchor" href="#administration-management" aria-hidden="true">#</a> ADMINISTRATION MANAGEMENT</h2><p>For more details, see document <a href="/UserGuide/latest/User-Manual/Operator-and-Expression.html" class="">Operator-and-Expression</a>.</p><h3 id="sql-statements" tabindex="-1"><a class="header-anchor" href="#sql-statements" aria-hidden="true">#</a> SQL Statements</h3><ul><li>Create user (Requires MANAGE_USER permission)</li></ul><div class="language-SQL line-numbers-mode" data-ext="SQL"><pre class="language-SQL"><code>CREATE USER <userName> <password> |
| eg: CREATE USER user1 'passwd' |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Delete user (Requires MANAGE_USER permission)</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">DROP</span> <span class="token keyword">USER</span> <span class="token operator"><</span>userName<span class="token operator">></span> |
| eg: <span class="token keyword">DROP</span> <span class="token keyword">USER</span> user1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Create role (Requires MANAGE_ROLE permission)</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">CREATE</span> ROLE <span class="token operator"><</span>roleName<span class="token operator">></span> |
| eg: <span class="token keyword">CREATE</span> ROLE role1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Delete role (Requires MANAGE_ROLE permission)</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">DROP</span> ROLE <span class="token operator"><</span>roleName<span class="token operator">></span> |
| eg: <span class="token keyword">DROP</span> ROLE role1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Grant role to user (Requires MANAGE_ROLE permission)</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">GRANT</span> ROLE <span class="token operator"><</span>ROLENAME<span class="token operator">></span> <span class="token keyword">TO</span> <span class="token operator"><</span>USERNAME<span class="token operator">></span> |
| eg: <span class="token keyword">GRANT</span> ROLE admin <span class="token keyword">TO</span> user1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Revoke role from user(Requires MANAGE_ROLE permission)</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">REVOKE</span> ROLE <span class="token operator"><</span>ROLENAME<span class="token operator">></span> <span class="token keyword">FROM</span> <span class="token operator"><</span><span class="token keyword">USER</span><span class="token operator">></span> |
| eg: <span class="token keyword">REVOKE</span> ROLE admin <span class="token keyword">FROM</span> user1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>List all user (Requires MANAGE_USER permission)</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>LIST <span class="token keyword">USER</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>List all role (Requires MANAGE_ROLE permission)</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>LIST ROLE |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>List all users granted specific role.（Requires MANAGE_USER permission)</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>LIST <span class="token keyword">USER</span> <span class="token keyword">OF</span> ROLE <span class="token operator"><</span>roleName<span class="token operator">></span> |
| eg: LIST <span class="token keyword">USER</span> <span class="token keyword">OF</span> ROLE roleuser |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>List all role granted to specific user.</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>LIST ROLE <span class="token keyword">OF</span> <span class="token keyword">USER</span> <span class="token operator"><</span>username<span class="token operator">></span> |
| eg: LIST ROLE <span class="token keyword">OF</span> <span class="token keyword">USER</span> tempuser |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>List all privileges of user</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>LIST <span class="token keyword">PRIVILEGES</span> <span class="token keyword">OF</span> <span class="token keyword">USER</span> <span class="token operator"><</span>username<span class="token operator">></span><span class="token punctuation">;</span> |
| eg: LIST <span class="token keyword">PRIVILEGES</span> <span class="token keyword">OF</span> <span class="token keyword">USER</span> tempuser<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>List all privileges of role</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>LIST <span class="token keyword">PRIVILEGES</span> <span class="token keyword">OF</span> ROLE <span class="token operator"><</span>roleName<span class="token operator">></span><span class="token punctuation">;</span> |
| eg: LIST <span class="token keyword">PRIVILEGES</span> <span class="token keyword">OF</span> ROLE actor<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>Update password</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">ALTER</span> <span class="token keyword">USER</span> <span class="token operator"><</span>username<span class="token operator">></span> <span class="token keyword">SET</span> PASSWORD <span class="token operator"><</span>password<span class="token operator">></span><span class="token punctuation">;</span> |
| eg: <span class="token keyword">ALTER</span> <span class="token keyword">USER</span> tempuser <span class="token keyword">SET</span> PASSWORD <span class="token string">'newpwd'</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="authorization-and-deauthorization" tabindex="-1"><a class="header-anchor" href="#authorization-and-deauthorization" aria-hidden="true">#</a> Authorization and Deauthorization</h3><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">GRANT</span> <span class="token operator"><</span><span class="token keyword">PRIVILEGES</span><span class="token operator">></span> <span class="token keyword">ON</span> <span class="token operator"><</span>PATHS<span class="token operator">></span> <span class="token keyword">TO</span> ROLE<span class="token operator">/</span><span class="token keyword">USER</span> <span class="token operator"><</span>NAME<span class="token operator">></span> <span class="token punctuation">[</span><span class="token keyword">WITH</span> <span class="token keyword">GRANT</span> <span class="token keyword">OPTION</span><span class="token punctuation">]</span>； |
| eg: <span class="token keyword">GRANT</span> <span class="token keyword">READ</span> <span class="token keyword">ON</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">TO</span> ROLE role1<span class="token punctuation">;</span> |
| eg: <span class="token keyword">GRANT</span> READ_DATA<span class="token punctuation">,</span> WRITE_DATA <span class="token keyword">ON</span> root<span class="token punctuation">.</span>t1<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">TO</span> <span class="token keyword">USER</span> user1<span class="token punctuation">;</span> |
| eg: <span class="token keyword">GRANT</span> READ_DATA<span class="token punctuation">,</span> WRITE_DATA <span class="token keyword">ON</span> root<span class="token punctuation">.</span>t1<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>t2<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">TO</span> <span class="token keyword">USER</span> user1<span class="token punctuation">;</span> |
| eg: <span class="token keyword">GRANT</span> MANAGE_ROLE <span class="token keyword">ON</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">TO</span> <span class="token keyword">USER</span> user1 <span class="token keyword">WITH</span> <span class="token keyword">GRANT</span> <span class="token keyword">OPTION</span><span class="token punctuation">;</span> |
| eg: <span class="token keyword">GRANT</span> <span class="token keyword">ALL</span> <span class="token keyword">ON</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">TO</span> <span class="token keyword">USER</span> user1 <span class="token keyword">WITH</span> <span class="token keyword">GRANT</span> <span class="token keyword">OPTION</span><span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">REVOKE</span> <span class="token operator"><</span><span class="token keyword">PRIVILEGES</span><span class="token operator">></span> <span class="token keyword">ON</span> <span class="token operator"><</span>PATHS<span class="token operator">></span> <span class="token keyword">FROM</span> ROLE<span class="token operator">/</span><span class="token keyword">USER</span> <span class="token operator"><</span>NAME<span class="token operator">></span><span class="token punctuation">;</span> |
| eg: <span class="token keyword">REVOKE</span> <span class="token keyword">READ</span> <span class="token keyword">ON</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">FROM</span> ROLE role1<span class="token punctuation">;</span> |
| eg: <span class="token keyword">REVOKE</span> READ_DATA<span class="token punctuation">,</span> WRITE_DATA <span class="token keyword">ON</span> root<span class="token punctuation">.</span>t1<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">FROM</span> <span class="token keyword">USER</span> user1<span class="token punctuation">;</span> |
| eg: <span class="token keyword">REVOKE</span> READ_DATA<span class="token punctuation">,</span> WRITE_DATA <span class="token keyword">ON</span> root<span class="token punctuation">.</span>t1<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span><span class="token punctuation">,</span> root<span class="token punctuation">.</span>t2<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">FROM</span> <span class="token keyword">USER</span> user1<span class="token punctuation">;</span> |
| eg: <span class="token keyword">REVOKE</span> MANAGE_ROLE <span class="token keyword">ON</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">FROM</span> <span class="token keyword">USER</span> user1<span class="token punctuation">;</span> |
| eg: <span class="token keyword">REVOKE</span> <span class="token keyword">ALL</span> <span class="token keyword">ON</span> ROOT<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> <span class="token keyword">FROM</span> <span class="token keyword">USER</span> user1<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="delete-time-partition-experimental-1" tabindex="-1"><a class="header-anchor" href="#delete-time-partition-experimental-1" aria-hidden="true">#</a> Delete Time Partition (experimental)</h4><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Eg: IoTDB > DELETE PARTITION root.ln 0,1,2 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="continuous-query-cq-1" tabindex="-1"><a class="header-anchor" href="#continuous-query-cq-1" aria-hidden="true">#</a> Continuous Query,CQ</h4><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Eg: IoTDB > CREATE CONTINUOUS QUERY cq1 BEGIN SELECT max_value(temperature) INTO temperature_max FROM root.ln.*.* GROUP BY time(10s) END |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h4 id="maintenance-command" tabindex="-1"><a class="header-anchor" href="#maintenance-command" aria-hidden="true">#</a> Maintenance Command</h4><ul><li>FLUSH</li></ul><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Eg: IoTDB > flush |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>MERGE</li></ul><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Eg: IoTDB > MERGE |
| Eg: IoTDB > FULL MERGE |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>CLEAR CACHE</li></ul><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>Eg: IoTDB <span class="token operator">></span> CLEAR CACHE |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>SET SYSTEM TO READONLY / WRITABLE</li></ul><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Eg: IoTDB > SET SYSTEM TO READONLY / WRITABLE |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>Query abort</li></ul><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Eg: IoTDB > KILL QUERY 1 |
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