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| GitHub |
| <span><svg 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" class="icon outbound"><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="sr-only">(opens new window)</span></span></a></nav> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>IoTDB User Guide (latest)</span> <!----></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>IoTDB Introduction</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Quick Start</span> <span 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href="/UserGuide/V0.13.x/API/Programming-Go-Native-API.html" class="sidebar-link">Go Native API</a></li><li><a href="/UserGuide/V0.13.x/API/Programming-JDBC.html" class="sidebar-link">JDBC (Not Recommend)</a></li><li><a href="/UserGuide/V0.13.x/API/Programming-MQTT.html" class="sidebar-link">MQTT</a></li><li><a href="/UserGuide/V0.13.x/API/RestService.html" class="sidebar-link">REST API</a></li><li><a href="/UserGuide/V0.13.x/API/Programming-TsFile-API.html" class="sidebar-link">TsFile API</a></li><li><a href="/UserGuide/V0.13.x/API/Status-Codes.html" class="sidebar-link">Status Codes</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Operate Metadata</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Write and Delete Data</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Query Data</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Process Data</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Administration Management</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Maintenance Tools</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Ecosystem Integration</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Cluster Setup</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>UDF Library</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Reference</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="content content__default"><h1 id="c-native-api"><a href="#c-native-api" class="header-anchor">#</a> C++ Native API</h1> <h2 id="dependencies"><a href="#dependencies" class="header-anchor">#</a> Dependencies</h2> <ul><li>Java 8+</li> <li>Maven 3.5+</li> <li>Flex</li> <li>Bison 2.7+</li> <li>Boost 1.56+</li> <li>OpenSSL 1.0+</li> <li>GCC 5.5.0+</li></ul> <h2 id="installation-from-source-code"><a href="#installation-from-source-code" class="header-anchor">#</a> Installation From Source Code</h2> <h3 id="install-cpp-dependencies"><a href="#install-cpp-dependencies" class="header-anchor">#</a> Install CPP Dependencies</h3> <ul><li><p><strong>MAC</strong></p> <ol><li><p>Install Bison ：Bison 2.3 is preinstalled on OSX, but this version is too low.</p> <p>When building Thrift with Bison 2.3, the following error would pop out: |
| <code>invalid directive: '%code'</code></p> <p>For such case, please update <code>Bison</code>:</p> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code>brew <span class="token function">install</span> bison |
| brew <span class="token function">link</span> bison --force |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br></div></div><p>Then, you need to tell the OS where the new bison is.</p> <p>For Bash users:</p> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code><span class="token builtin class-name">echo</span> <span class="token string">'export PATH="/usr/local/opt/bison/bin:$PATH"'</span> <span class="token operator">>></span> ~/.bash_profile |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>For zsh users:</p> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code><span class="token builtin class-name">echo</span> <span class="token string">'export PATH="/usr/local/opt/bison/bin:$PATH"'</span> <span class="token operator">>></span> ~/.zshrc |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div></li> <li><p>Install Boost ：Please make sure a relative new version of Boost is ready on your machine. |
| If no Boost available, install the latest version of Boost:</p> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code>brew <span class="token function">install</span> boost |
| brew <span class="token function">link</span> boost |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br></div></div></li> <li><p>OpenSSL ：Make sure the Openssl libraries has been install on your Mac. The default Openssl include file search path is "/usr/local/opt/openssl/include".</p> <p>If Openssl header files can not be found when building Thrift, please add option<code>-Dopenssl.include.dir=""</code>.</p></li></ol></li> <li><p><strong>Ubuntu 20</strong></p> <p>To install all dependencies, run:</p> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code><span class="token function">sudo</span> <span class="token function">apt-get</span> <span class="token function">install</span> gcc-9 g++-9 libstdc++-9-dev bison flex libboost-all-dev libssl-dev zlib1g-dev |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div></li> <li><p><strong>CentOS 7.x</strong></p> <p>Some packages can be installed using Yum:</p> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code><span class="token function">sudo</span> yum <span class="token function">install</span> bison flex openssl-devel |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>The version of gcc and boost installed by yum is too low, therefore you should compile or download these binary packages by yourself.</p></li> <li><p><strong>Windows</strong></p> <ol><li><p>Building environment</p> <ul><li>Install <code>MS Visual Studio</code>(recommend 2019 version): remember to install Visual Studio C/C++ IDE and compiler(supporting CMake, Clang, MinGW).</li> <li>Download and install <a href="https://cmake.org/download/" target="_blank" rel="noopener noreferrer">CMake<span><svg 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" class="icon outbound"><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="sr-only">(opens new window)</span></span></a> .</li></ul></li> <li><p>Download and install <code>Flex</code> & <code>Bison</code></p> <ul><li>Download <a href="https://sourceforge.net/projects/winflexbison/" target="_blank" rel="noopener noreferrer">Win_Flex_Bison<span><svg 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" class="icon outbound"><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="sr-only">(opens new window)</span></span></a> .</li> <li>After downloaded, please rename the executables to <code>flex.exe</code> and <code>bison.exe</code> and add them to "PATH" environment variables.</li></ul></li> <li><p>Install <code>Boost</code></p> <ul><li>Download <a href="https://www.boost.org/users/download/" target="_blank" rel="noopener noreferrer">Boost<span><svg 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" class="icon outbound"><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="sr-only">(opens new window)</span></span></a> .</li> <li>Then build <code>Boost</code> by executing bootstrap.bat and b2.exe.</li></ul></li> <li><p>Install <code>OpenSSL</code></p> <ul><li>Download and install <a href="http://slproweb.com/products/Win32OpenSSL.html" target="_blank" rel="noopener noreferrer">OpenSSL<span><svg 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" class="icon outbound"><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="sr-only">(opens new window)</span></span></a> .</li></ul></li></ol></li></ul> <h3 id="compile"><a href="#compile" class="header-anchor">#</a> Compile</h3> <p>You can download the source code from:</p> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code><span class="token function">git</span> clone https://github.com/apache/iotdb.git |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>The default dev branch is the master branch, If you want to use a released version (eg. <code>rel/0.13</code>):</p> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code><span class="token function">git</span> checkout rel/0.13 |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>Under the root path of iotdb:</p> <ul><li><p>Mac & Linux</p> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code>mvn package -P compile-cpp -pl example/client-cpp-example -am -DskipTest |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div></li> <li><p>Windows</p> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code>mvn package -P compile-cpp -pl client-cpp,server,example/client-cpp-example -am -Dcmake.generator<span class="token operator">=</span><span class="token string">"your cmake generator"</span> -Dboost.include.dir<span class="token operator">=</span><span class="token variable">${your boost header folder}</span> -Dboost.library.dir<span class="token operator">=</span><span class="token variable">${your boost lib (stage) folder}</span> -DskipTests |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><ul><li>When building client-cpp project, use <code>-Dcmake.generator=""</code> option to specify a Cmake generator. E.g. <code>-Dcmake.generator="Visual Studio 16 2019"</code> (<code>cmake --help</code> shows a long list of supported Cmake generators.)</li> <li>To help CMake find your Boost libraries on windows, you should set <code>-DboostIncludeDir="C:\Program Files (x86)\boost_1_78_0" -DboostLibraryDir="C:\Program Files (x86)\boost_1_78_0\stage\lib"</code> to your mvn build command. |
| ``</li></ul></li></ul> <p>If the compilation finishes successfully, the packaged zip file will be placed under <code>client-cpp/target/client-cpp-${project.version}-cpp-${os}.zip</code></p> <h2 id="native-apis"><a href="#native-apis" class="header-anchor">#</a> Native APIs</h2> <p>Here we show the commonly used interfaces and their parameters in the Native API:</p> <h3 id="initialization"><a href="#initialization" class="header-anchor">#</a> Initialization</h3> <ul><li>Open a Session</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">open</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><ul><li>Open a session, with a parameter to specify whether to enable RPC compression</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">open</span><span class="token punctuation">(</span><span class="token keyword">bool</span> enableRPCCompression<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>Notice: this RPC compression status of client must comply with that of IoTDB server</p> <ul><li>Close a Session</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><h3 id="data-definition-interface-ddl"><a href="#data-definition-interface-ddl" class="header-anchor">#</a> Data Definition Interface (DDL)</h3> <h4 id="storage-group-management"><a href="#storage-group-management" class="header-anchor">#</a> Storage Group Management</h4> <ul><li>Set storage group</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">setStorageGroup</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>storageGroupId<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><ul><li>Delete one or several storage groups</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">deleteStorageGroup</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>storageGroup<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">void</span> <span class="token function">deleteStorageGroups</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>storageGroups<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br></div></div><h4 id="timeseries-management"><a href="#timeseries-management" class="header-anchor">#</a> Timeseries Management</h4> <ul><li>Create one or multiple timeseries</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">createTimeseries</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">,</span> TSDataType<span class="token double-colon punctuation">::</span>TSDataType dataType<span class="token punctuation">,</span> TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding encoding<span class="token punctuation">,</span> |
| CompressionType<span class="token double-colon punctuation">::</span>CompressionType compressor<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token keyword">void</span> <span class="token function">createMultiTimeseries</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>paths<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">></span> <span class="token operator">&</span>dataTypes<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding<span class="token operator">></span> <span class="token operator">&</span>encodings<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>CompressionType<span class="token double-colon punctuation">::</span>CompressionType<span class="token operator">></span> <span class="token operator">&</span>compressors<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>map<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token punctuation">,</span> std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">*</span>propsList<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>map<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token punctuation">,</span> std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">*</span>tagsList<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>map<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token punctuation">,</span> std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">*</span>attributesList<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">*</span>measurementAliasList<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br></div></div><ul><li>Create aligned timeseries</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">createAlignedTimeseries</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>measurements<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">></span> <span class="token operator">&</span>dataTypes<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding<span class="token operator">></span> <span class="token operator">&</span>encodings<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>CompressionType<span class="token double-colon punctuation">::</span>CompressionType<span class="token operator">></span> <span class="token operator">&</span>compressors<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div><ul><li>Delete one or several timeseries</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">deleteTimeseries</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">void</span> <span class="token function">deleteTimeseries</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>paths<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br></div></div><ul><li>Check whether the specific timeseries exists.</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">bool</span> <span class="token function">checkTimeseriesExists</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><h4 id="schema-template"><a href="#schema-template" class="header-anchor">#</a> Schema Template</h4> <ul><li>Create a schema template</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">createSchemaTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> Template <span class="token operator">&</span>templ<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><ul><li>Set the schema template named <code>templateName</code> at path <code>prefixPath</code>.</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">setSchemaTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>prefix_path<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><ul><li>Unset the schema template</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">unsetSchemaTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>prefix_path<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><ul><li>After measurement template created, you can edit the template with belowed APIs.</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token comment">// Add aligned measurements to a template</span> |
| <span class="token keyword">void</span> <span class="token function">addAlignedMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>measurements<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">></span> <span class="token operator">&</span>dataTypes<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding<span class="token operator">></span> <span class="token operator">&</span>encodings<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>CompressionType<span class="token double-colon punctuation">::</span>CompressionType<span class="token operator">></span> <span class="token operator">&</span>compressors<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// Add one aligned measurement to a template</span> |
| <span class="token keyword">void</span> <span class="token function">addAlignedMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>measurement<span class="token punctuation">,</span> |
| TSDataType<span class="token double-colon punctuation">::</span>TSDataType dataType<span class="token punctuation">,</span> |
| TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding encoding<span class="token punctuation">,</span> |
| CompressionType<span class="token double-colon punctuation">::</span>CompressionType compressor<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// Add unaligned measurements to a template</span> |
| <span class="token keyword">void</span> <span class="token function">addUnalignedMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>measurements<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">></span> <span class="token operator">&</span>dataTypes<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding<span class="token operator">></span> <span class="token operator">&</span>encodings<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>CompressionType<span class="token double-colon punctuation">::</span>CompressionType<span class="token operator">></span> <span class="token operator">&</span>compressors<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// Add one unaligned measurement to a template</span> |
| <span class="token keyword">void</span> <span class="token function">addUnalignedMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>measurement<span class="token punctuation">,</span> |
| TSDataType<span class="token double-colon punctuation">::</span>TSDataType dataType<span class="token punctuation">,</span> |
| TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding encoding<span class="token punctuation">,</span> |
| CompressionType<span class="token double-colon punctuation">::</span>CompressionType compressor<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// Delete a node in template and its children</span> |
| <span class="token keyword">void</span> <span class="token function">deleteNodeInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br></div></div><ul><li>You can query measurement templates with these APIS:</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token comment">// Return the amount of measurements inside a template</span> |
| <span class="token keyword">int</span> <span class="token function">countMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// Return true if path points to a measurement, otherwise returne false</span> |
| <span class="token keyword">bool</span> <span class="token function">isMeasurementInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// Return true if path exists in template, otherwise return false</span> |
| <span class="token keyword">bool</span> <span class="token function">isPathExistInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// Return all measurements paths inside template</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token function">showMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// Return all measurements paths under the designated patter inside template</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token function">showMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>pattern<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br></div></div><h3 id="data-manipulation-interface-dml"><a href="#data-manipulation-interface-dml" class="header-anchor">#</a> Data Manipulation Interface (DML)</h3> <h4 id="insert"><a href="#insert" class="header-anchor">#</a> Insert</h4> <blockquote><p>It is recommended to use insertTablet to help improve write efficiency.</p></blockquote> <ul><li>Insert a Tablet，which is multiple rows of a device, each row has the same measurements |
| <ul><li>Better Write Performance</li> <li>Support null values: fill the null value with any value, and then mark the null value via BitMap</li></ul></li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertTablet</span><span class="token punctuation">(</span>Tablet <span class="token operator">&</span>tablet<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><ul><li>Insert multiple Tablets</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertTablets</span><span class="token punctuation">(</span>std<span class="token double-colon punctuation">::</span>unordered_map<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token punctuation">,</span> Tablet <span class="token operator">*</span><span class="token operator">></span> <span class="token operator">&</span>tablets<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><ul><li>Insert a Record, which contains multiple measurement value of a device at a timestamp</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertRecord</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> <span class="token keyword">int64_t</span> time<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>measurements<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">></span> <span class="token operator">&</span>types<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">char</span> <span class="token operator">*</span><span class="token operator">></span> <span class="token operator">&</span>values<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br></div></div><ul><li>Insert multiple Records</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertRecords</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>deviceIds<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">int64_t</span><span class="token operator">></span> <span class="token operator">&</span>times<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>measurementsList<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">>></span> <span class="token operator">&</span>typesList<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">char</span> <span class="token operator">*</span><span class="token operator">>></span> <span class="token operator">&</span>valuesList<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div><ul><li>Insert multiple Records that belong to the same device. With type info the server has no need to do type inference, which leads a better performance</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertRecordsOfOneDevice</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">int64_t</span><span class="token operator">></span> <span class="token operator">&</span>times<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>measurementsList<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">>></span> <span class="token operator">&</span>typesList<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">char</span> <span class="token operator">*</span><span class="token operator">>></span> <span class="token operator">&</span>valuesList<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div><h4 id="insert-with-type-inference"><a href="#insert-with-type-inference" class="header-anchor">#</a> Insert with type inference</h4> <p>Without type information, server has to do type inference, which may cost some time.</p> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertRecord</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> <span class="token keyword">int64_t</span> time<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>measurements<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>values<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| |
| <span class="token keyword">void</span> <span class="token function">insertRecords</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>deviceIds<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">int64_t</span><span class="token operator">></span> <span class="token operator">&</span>times<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>measurementsList<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>valuesList<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| |
| <span class="token keyword">void</span> <span class="token function">insertRecordsOfOneDevice</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">int64_t</span><span class="token operator">></span> <span class="token operator">&</span>times<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>measurementsList<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>valuesList<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br></div></div><h4 id="insert-data-into-aligned-timeseries"><a href="#insert-data-into-aligned-timeseries" class="header-anchor">#</a> Insert data into Aligned Timeseries</h4> <p>The Insert of aligned timeseries uses interfaces like <code>insertAlignedXXX</code>, and others are similar to the above interfaces:</p> <ul><li>insertAlignedRecord</li> <li>insertAlignedRecords</li> <li>insertAlignedRecordsOfOneDevice</li> <li>insertAlignedTablet</li> <li>insertAlignedTablets</li></ul> <h4 id="delete"><a href="#delete" class="header-anchor">#</a> Delete</h4> <ul><li>Delete data before or equal to a timestamp of one or several timeseries</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">deleteData</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">,</span> <span class="token keyword">int64_t</span> time<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">void</span> <span class="token function">deleteData</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> <span class="token keyword">int64_t</span> time<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br></div></div><h3 id="iotdb-sql-interface"><a href="#iotdb-sql-interface" class="header-anchor">#</a> IoTDB-SQL Interface</h3> <ul><li>Execute query statement</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">executeNonQueryStatement</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>sql<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><ul><li>Execute non query statement</li></ul> <div class="language-cpp line-numbers-mode"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">executeNonQueryStatement</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>sql<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><h2 id="examples"><a href="#examples" class="header-anchor">#</a> Examples</h2> <p>The sample code of using these interfaces is in:</p> <ul><li><code>example/client-cpp-example/src/SessionExample.cpp</code></li> <li><code>example/client-cpp-example/src/AlignedTimeseriesSessionExample.cpp</code> （使用对齐时间序列）</li></ul> <p>If the compilation finishes successfully, the example project will be placed under <code>example/client-cpp-example/target</code></p> <h2 id="faq"><a href="#faq" class="header-anchor">#</a> FAQ</h2> <h3 id="on-mac"><a href="#on-mac" class="header-anchor">#</a> on Mac</h3> <p>If errors occur when compiling thrift source code, try to downgrade your xcode-commandline from 12 to 11.5</p> <p>see https://stackoverflow.com/questions/63592445/ld-unsupported-tapi-file-type-tapi-tbd-in-yaml-file/65518087#65518087</p> <h3 id="on-windows"><a href="#on-windows" class="header-anchor">#</a> on Windows</h3> <p>When Building Thrift and downloading packages via "wget", a possible annoying issue may occur with |
| error message looks like:</p> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code>Failed to delete cached <span class="token function">file</span> C:<span class="token punctuation">\</span>Users<span class="token punctuation">\</span>Administrator<span class="token punctuation">\</span>.m2<span class="token punctuation">\</span>repository<span class="token punctuation">\</span>.cache<span class="token punctuation">\</span>download-maven-plugin<span class="token punctuation">\</span>index.ser |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>Possible fixes:</p> <ul><li>Try to delete the ".m2\repository\.cache" directory and try again.</li> <li>Add "<skipCache>true</skipCache>" configuration to the download-maven-plugin maven phase that complains this error.</li></ul></div> <div class="page-nav"><p class="inner"><span class="prev"> |
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