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| <li>Summary: </li> |
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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.calcite.sql.fun</a></div> |
| <h1 title="Class SqlLibraryOperators" class="title">Class SqlLibraryOperators</h1> |
| </div> |
| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a> |
| <div class="inheritance">org.apache.calcite.sql.fun.SqlLibraryOperators</div> |
| </div> |
| <section class="class-description" id="class-description"> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public abstract class </span><span class="element-name type-name-label">SqlLibraryOperators</span> |
| <span class="extends-implements">extends <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span></div> |
| <div class="block">Defines functions and operators that are not part of standard SQL but |
| belong to one or more other dialects of SQL. |
| |
| <p>They are read by <a href="SqlLibraryOperatorTableFactory.html" title="class in org.apache.calcite.sql.fun"><code>SqlLibraryOperatorTableFactory</code></a> into instances |
| of <a href="../SqlOperatorTable.html" title="interface in org.apache.calcite.sql"><code>SqlOperatorTable</code></a> that contain functions and operators for |
| particular libraries.</div> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <li> |
| <section class="field-summary" id="field-summary"> |
| <h2>Field Summary</h2> |
| <div class="caption"><span>Fields</span></div> |
| <div class="summary-table three-column-summary"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Field</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#ARRAY_AGG" class="member-name-link">ARRAY_AGG</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "ARRAY_AGG(value [ ORDER BY ...])" aggregate function, |
| in BigQuery and PostgreSQL, gathers values into arrays.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#ARRAY_CONCAT" class="member-name-link">ARRAY_CONCAT</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "ARRAY_CONCAT(array [, array]*)" function.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#ARRAY_CONCAT_AGG" class="member-name-link">ARRAY_CONCAT_AGG</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "ARRAY_CONCAT_AGG(value [ ORDER BY ...])" aggregate function, |
| in BigQuery and PostgreSQL, concatenates array values into arrays.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#ARRAY_LENGTH" class="member-name-link">ARRAY_LENGTH</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "ARRAY_LENGTH(array)" function.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#ARRAY_REVERSE" class="member-name-link">ARRAY_REVERSE</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "ARRAY_REVERSE(array)" function.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#BOOL_AND" class="member-name-link">BOOL_AND</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "BOOL_AND(condition)" aggregate function, PostgreSQL and Redshift's |
| equivalent to <a href="SqlStdOperatorTable.html#EVERY"><code>SqlStdOperatorTable.EVERY</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#BOOL_OR" class="member-name-link">BOOL_OR</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "BOOL_OR(condition)" aggregate function, PostgreSQL and Redshift's |
| equivalent to <a href="SqlStdOperatorTable.html#SOME"><code>SqlStdOperatorTable.SOME</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#CHR" class="member-name-link">CHR</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#COMPRESS" class="member-name-link">COMPRESS</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#CONCAT_FUNCTION" class="member-name-link">CONCAT_FUNCTION</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "CONCAT(arg, ...)" function that concatenates strings.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#CONCAT2" class="member-name-link">CONCAT2</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "CONCAT(arg0, arg1)" function that concatenates strings.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#CONVERT_TIMEZONE" class="member-name-link">CONVERT_TIMEZONE</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "CONVERT_TIMEZONE(tz1, tz2, datetime)" function; |
| converts the timezone of <code>datetime</code> from <code>tz1</code> to <code>tz2</code>.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#COSH" class="member-name-link">COSH</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#COUNTIF" class="member-name-link">COUNTIF</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "COUNTIF(condition) [OVER (...)]" function, in BigQuery, |
| returns the count of TRUE values for expression.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#CURRENT_DATETIME" class="member-name-link">CURRENT_DATETIME</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "CURRENT_DATETIME([timezone])" function.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#DATE" class="member-name-link">DATE</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "DATE(string)" function, equivalent to "CAST(string AS DATE).</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#DATE_FROM_UNIX_DATE" class="member-name-link">DATE_FROM_UNIX_DATE</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "DATE_FROM_UNIX_DATE(integer)" function; returns a DATE value |
| a given number of seconds after 1970-01-01.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#DAYNAME" class="member-name-link">DAYNAME</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "DAYNAME(datetime)" function; returns the name of the day of the week, |
| in the current locale, of a TIMESTAMP or DATE argument.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#DECODE" class="member-name-link">DECODE</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "DECODE(v, v1, result1, [v2, result2, ...], resultN)" function.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#DIFFERENCE" class="member-name-link">DIFFERENCE</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#EXISTS_NODE" class="member-name-link">EXISTS_NODE</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#EXTRACT_VALUE" class="member-name-link">EXTRACT_VALUE</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#EXTRACT_XML" class="member-name-link">EXTRACT_XML</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#FROM_BASE64" class="member-name-link">FROM_BASE64</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#GREATEST" class="member-name-link">GREATEST</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "GREATEST(value, value)" function.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#GROUP_CONCAT" class="member-name-link">GROUP_CONCAT</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "GROUP_CONCAT([DISTINCT] expr [, ...] [ORDER BY ...] [SEPARATOR sep])" |
| aggregate function, MySQL's equivalent of |
| <a href="SqlStdOperatorTable.html#LISTAGG"><code>SqlStdOperatorTable.LISTAGG</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#IF" class="member-name-link">IF</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "IF(condition, thenValue, elseValue)" function.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlSpecialOperator.html" title="class in org.apache.calcite.sql">SqlSpecialOperator</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#ILIKE" class="member-name-link">ILIKE</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The case-insensitive variant of the LIKE operator.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#INFIX_CAST" class="member-name-link">INFIX_CAST</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Infix "::" cast operator used by PostgreSQL, for example |
| <code>'100'::INTEGER</code>.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#JSON_DEPTH" class="member-name-link">JSON_DEPTH</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#JSON_KEYS" class="member-name-link">JSON_KEYS</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#JSON_LENGTH" class="member-name-link">JSON_LENGTH</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#JSON_PRETTY" class="member-name-link">JSON_PRETTY</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#JSON_REMOVE" class="member-name-link">JSON_REMOVE</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#JSON_STORAGE_SIZE" class="member-name-link">JSON_STORAGE_SIZE</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#JSON_TYPE" class="member-name-link">JSON_TYPE</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#LEAST" class="member-name-link">LEAST</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "LEAST(value, value)" function.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#LEFT" class="member-name-link">LEFT</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#LOGICAL_AND" class="member-name-link">LOGICAL_AND</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "LOGICAL_AND(condition)" aggregate function, BigQuery's |
| equivalent to <a href="SqlStdOperatorTable.html#EVERY"><code>SqlStdOperatorTable.EVERY</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#LOGICAL_OR" class="member-name-link">LOGICAL_OR</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "LOGICAL_OR(condition)" aggregate function, BigQuery's |
| equivalent to <a href="SqlStdOperatorTable.html#SOME"><code>SqlStdOperatorTable.SOME</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#LTRIM" class="member-name-link">LTRIM</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "LTRIM(string)" function.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#MD5" class="member-name-link">MD5</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#MONTHNAME" class="member-name-link">MONTHNAME</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "MONTHNAME(datetime)" function; returns the name of the month, |
| in the current locale, of a TIMESTAMP or DATE argument.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlSpecialOperator.html" title="class in org.apache.calcite.sql">SqlSpecialOperator</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#NOT_ILIKE" class="member-name-link">NOT_ILIKE</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The case-insensitive variant of the NOT LIKE operator.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlSpecialOperator.html" title="class in org.apache.calcite.sql">SqlSpecialOperator</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#NOT_RLIKE" class="member-name-link">NOT_RLIKE</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The regex variant of the NOT LIKE operator.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#NULL_SAFE_EQUAL" class="member-name-link">NULL_SAFE_EQUAL</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">NULL-safe "<=>" equal operator used by MySQL, for example |
| <code>1<=>NULL</code>.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#NVL" class="member-name-link">NVL</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "NVL(value, value)" function.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#REGEXP_REPLACE" class="member-name-link">REGEXP_REPLACE</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#REPEAT" class="member-name-link">REPEAT</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#REVERSE" class="member-name-link">REVERSE</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#RIGHT" class="member-name-link">RIGHT</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlSpecialOperator.html" title="class in org.apache.calcite.sql">SqlSpecialOperator</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#RLIKE" class="member-name-link">RLIKE</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The regex variant of the LIKE operator.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#RTRIM" class="member-name-link">RTRIM</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "RTRIM(string)" function.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#SHA1" class="member-name-link">SHA1</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#SINH" class="member-name-link">SINH</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#SOUNDEX" class="member-name-link">SOUNDEX</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#SPACE" class="member-name-link">SPACE</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#STRCMP" class="member-name-link">STRCMP</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#STRING_AGG" class="member-name-link">STRING_AGG</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "STRING_AGG(value [, separator ] [ ORDER BY ...])" aggregate function, |
| BigQuery and PostgreSQL's equivalent of |
| <a href="SqlStdOperatorTable.html#LISTAGG"><code>SqlStdOperatorTable.LISTAGG</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#SUBSTR_BIG_QUERY" class="member-name-link">SUBSTR_BIG_QUERY</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">BigQuery's "SUBSTR(string, position [, substringLength ])" function.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#SUBSTR_MYSQL" class="member-name-link">SUBSTR_MYSQL</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">MySQL's "SUBSTR(string, position [, substringLength ])" function.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#SUBSTR_ORACLE" class="member-name-link">SUBSTR_ORACLE</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">Oracle's "SUBSTR(string, position [, substringLength ])" function.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#SUBSTR_POSTGRESQL" class="member-name-link">SUBSTR_POSTGRESQL</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">PostgreSQL's "SUBSTR(string, position [, substringLength ])" function.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#TANH" class="member-name-link">TANH</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#TIMESTAMP_MICROS" class="member-name-link">TIMESTAMP_MICROS</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "TIMESTAMP_MICROS(bigint)" function; returns a TIMESTAMP value |
| a given number of micro-seconds after 1970-01-01 00:00:00.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#TIMESTAMP_MILLIS" class="member-name-link">TIMESTAMP_MILLIS</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "TIMESTAMP_MILLIS(bigint)" function; returns a TIMESTAMP value |
| a given number of milliseconds after 1970-01-01 00:00:00.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#TIMESTAMP_SECONDS" class="member-name-link">TIMESTAMP_SECONDS</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "TIMESTAMP_SECONDS(bigint)" function; returns a TIMESTAMP value |
| a given number of seconds after 1970-01-01 00:00:00.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#TO_BASE64" class="member-name-link">TO_BASE64</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#TO_DATE" class="member-name-link">TO_DATE</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "TO_DATE(string1, string2)" function; casts string1 |
| to a DATE using the format specified in string2.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#TO_TIMESTAMP" class="member-name-link">TO_TIMESTAMP</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "TO_TIMESTAMP(string1, string2)" function; casts string1 |
| to a TIMESTAMP using the format specified in string2.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#TRANSLATE3" class="member-name-link">TRANSLATE3</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The <code>TRANSLATE(<i>string_expr</i>, <i>search_chars</i>, |
| <i>replacement_chars</i>)</code> function returns <i>string_expr</i> with |
| all occurrences of each character in <i>search_chars</i> replaced by its |
| corresponding character in <i>replacement_chars</i>.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#UNIX_DATE" class="member-name-link">UNIX_DATE</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "UNIX_DATE(date)" function; returns the number of days since |
| 1970-01-01.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#UNIX_MICROS" class="member-name-link">UNIX_MICROS</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "UNIX_MICROS(bigint)" function; returns the number of microseconds |
| since 1970-01-01 00:00:00.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#UNIX_MILLIS" class="member-name-link">UNIX_MILLIS</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">The "UNIX_MILLIS(bigint)" function; returns the number of milliseconds |
| since 1970-01-01 00:00:00.</div> |
| </div> |
| <div class="col-first even-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#UNIX_SECONDS" class="member-name-link">UNIX_SECONDS</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The "UNIX_SECONDS(bigint)" function; returns the number of seconds |
| since 1970-01-01 00:00:00.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>static final <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#XML_TRANSFORM" class="member-name-link">XML_TRANSFORM</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li> |
| <section class="method-summary" id="method-summary"> |
| <h2>Method Summary</h2> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <li> |
| <section class="field-details" id="field-detail"> |
| <h2>Field Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="CONVERT_TIMEZONE"> |
| <h3>CONVERT_TIMEZONE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">CONVERT_TIMEZONE</span></div> |
| <div class="block">The "CONVERT_TIMEZONE(tz1, tz2, datetime)" function; |
| converts the timezone of <code>datetime</code> from <code>tz1</code> to <code>tz2</code>. |
| This function is only on Redshift, but we list it in PostgreSQL |
| because Redshift does not have its own library.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="DECODE"> |
| <h3>DECODE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">DECODE</span></div> |
| <div class="block">The "DECODE(v, v1, result1, [v2, result2, ...], resultN)" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="IF"> |
| <h3>IF</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">IF</span></div> |
| <div class="block">The "IF(condition, thenValue, elseValue)" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="NVL"> |
| <h3>NVL</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">NVL</span></div> |
| <div class="block">The "NVL(value, value)" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="LTRIM"> |
| <h3>LTRIM</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">LTRIM</span></div> |
| <div class="block">The "LTRIM(string)" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="RTRIM"> |
| <h3>RTRIM</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">RTRIM</span></div> |
| <div class="block">The "RTRIM(string)" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="SUBSTR_BIG_QUERY"> |
| <h3>SUBSTR_BIG_QUERY</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">SUBSTR_BIG_QUERY</span></div> |
| <div class="block">BigQuery's "SUBSTR(string, position [, substringLength ])" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="SUBSTR_MYSQL"> |
| <h3>SUBSTR_MYSQL</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">SUBSTR_MYSQL</span></div> |
| <div class="block">MySQL's "SUBSTR(string, position [, substringLength ])" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="SUBSTR_ORACLE"> |
| <h3>SUBSTR_ORACLE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">SUBSTR_ORACLE</span></div> |
| <div class="block">Oracle's "SUBSTR(string, position [, substringLength ])" function. |
| |
| <p>It has different semantics to standard SQL's |
| <a href="SqlStdOperatorTable.html#SUBSTRING"><code>SqlStdOperatorTable.SUBSTRING</code></a> function: |
| |
| <ul> |
| <li>If <code>substringLength</code> ≤ 0, result is the empty string |
| (Oracle would return null, because it treats the empty string as null, |
| but Calcite does not have these semantics); |
| <li>If <code>position</code> = 0, treat <code>position</code> as 1; |
| <li>If <code>position</code> < 0, treat <code>position</code> as |
| "length(string) + position + 1". |
| </ul></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="SUBSTR_POSTGRESQL"> |
| <h3>SUBSTR_POSTGRESQL</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">SUBSTR_POSTGRESQL</span></div> |
| <div class="block">PostgreSQL's "SUBSTR(string, position [, substringLength ])" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="GREATEST"> |
| <h3>GREATEST</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">GREATEST</span></div> |
| <div class="block">The "GREATEST(value, value)" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="LEAST"> |
| <h3>LEAST</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">LEAST</span></div> |
| <div class="block">The "LEAST(value, value)" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="TRANSLATE3"> |
| <h3>TRANSLATE3</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">TRANSLATE3</span></div> |
| <div class="block">The <code>TRANSLATE(<i>string_expr</i>, <i>search_chars</i>, |
| <i>replacement_chars</i>)</code> function returns <i>string_expr</i> with |
| all occurrences of each character in <i>search_chars</i> replaced by its |
| corresponding character in <i>replacement_chars</i>. |
| |
| <p>It is not defined in the SQL standard, but occurs in Oracle and |
| PostgreSQL.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="JSON_TYPE"> |
| <h3>JSON_TYPE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">JSON_TYPE</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="JSON_DEPTH"> |
| <h3>JSON_DEPTH</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">JSON_DEPTH</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="JSON_LENGTH"> |
| <h3>JSON_LENGTH</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">JSON_LENGTH</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="JSON_KEYS"> |
| <h3>JSON_KEYS</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">JSON_KEYS</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="JSON_PRETTY"> |
| <h3>JSON_PRETTY</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">JSON_PRETTY</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="JSON_REMOVE"> |
| <h3>JSON_REMOVE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">JSON_REMOVE</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="JSON_STORAGE_SIZE"> |
| <h3>JSON_STORAGE_SIZE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">JSON_STORAGE_SIZE</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="REGEXP_REPLACE"> |
| <h3>REGEXP_REPLACE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">REGEXP_REPLACE</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="COMPRESS"> |
| <h3>COMPRESS</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">COMPRESS</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="EXTRACT_VALUE"> |
| <h3>EXTRACT_VALUE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">EXTRACT_VALUE</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="XML_TRANSFORM"> |
| <h3>XML_TRANSFORM</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">XML_TRANSFORM</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="EXTRACT_XML"> |
| <h3>EXTRACT_XML</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">EXTRACT_XML</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="EXISTS_NODE"> |
| <h3>EXISTS_NODE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">EXISTS_NODE</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="BOOL_AND"> |
| <h3>BOOL_AND</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></span> <span class="element-name">BOOL_AND</span></div> |
| <div class="block">The "BOOL_AND(condition)" aggregate function, PostgreSQL and Redshift's |
| equivalent to <a href="SqlStdOperatorTable.html#EVERY"><code>SqlStdOperatorTable.EVERY</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="BOOL_OR"> |
| <h3>BOOL_OR</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></span> <span class="element-name">BOOL_OR</span></div> |
| <div class="block">The "BOOL_OR(condition)" aggregate function, PostgreSQL and Redshift's |
| equivalent to <a href="SqlStdOperatorTable.html#SOME"><code>SqlStdOperatorTable.SOME</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="LOGICAL_AND"> |
| <h3>LOGICAL_AND</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></span> <span class="element-name">LOGICAL_AND</span></div> |
| <div class="block">The "LOGICAL_AND(condition)" aggregate function, BigQuery's |
| equivalent to <a href="SqlStdOperatorTable.html#EVERY"><code>SqlStdOperatorTable.EVERY</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="LOGICAL_OR"> |
| <h3>LOGICAL_OR</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></span> <span class="element-name">LOGICAL_OR</span></div> |
| <div class="block">The "LOGICAL_OR(condition)" aggregate function, BigQuery's |
| equivalent to <a href="SqlStdOperatorTable.html#SOME"><code>SqlStdOperatorTable.SOME</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="COUNTIF"> |
| <h3>COUNTIF</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></span> <span class="element-name">COUNTIF</span></div> |
| <div class="block">The "COUNTIF(condition) [OVER (...)]" function, in BigQuery, |
| returns the count of TRUE values for expression. |
| |
| <p><code>COUNTIF(b)</code> is equivalent to |
| <code>COUNT(*) FILTER (WHERE b)</code>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ARRAY_AGG"> |
| <h3>ARRAY_AGG</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></span> <span class="element-name">ARRAY_AGG</span></div> |
| <div class="block">The "ARRAY_AGG(value [ ORDER BY ...])" aggregate function, |
| in BigQuery and PostgreSQL, gathers values into arrays.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ARRAY_CONCAT_AGG"> |
| <h3>ARRAY_CONCAT_AGG</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></span> <span class="element-name">ARRAY_CONCAT_AGG</span></div> |
| <div class="block">The "ARRAY_CONCAT_AGG(value [ ORDER BY ...])" aggregate function, |
| in BigQuery and PostgreSQL, concatenates array values into arrays.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="STRING_AGG"> |
| <h3>STRING_AGG</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></span> <span class="element-name">STRING_AGG</span></div> |
| <div class="block">The "STRING_AGG(value [, separator ] [ ORDER BY ...])" aggregate function, |
| BigQuery and PostgreSQL's equivalent of |
| <a href="SqlStdOperatorTable.html#LISTAGG"><code>SqlStdOperatorTable.LISTAGG</code></a>. |
| |
| <p><code>STRING_AGG(v, sep ORDER BY x, y)</code> is implemented by |
| rewriting to <code>LISTAGG(v, sep) WITHIN GROUP (ORDER BY x, y)</code>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="GROUP_CONCAT"> |
| <h3>GROUP_CONCAT</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></span> <span class="element-name">GROUP_CONCAT</span></div> |
| <div class="block">The "GROUP_CONCAT([DISTINCT] expr [, ...] [ORDER BY ...] [SEPARATOR sep])" |
| aggregate function, MySQL's equivalent of |
| <a href="SqlStdOperatorTable.html#LISTAGG"><code>SqlStdOperatorTable.LISTAGG</code></a>. |
| |
| <p><code>GROUP_CONCAT(v ORDER BY x, y SEPARATOR s)</code> is implemented by |
| rewriting to <code>LISTAGG(v, s) WITHIN GROUP (ORDER BY x, y)</code>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="DATE"> |
| <h3>DATE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">DATE</span></div> |
| <div class="block">The "DATE(string)" function, equivalent to "CAST(string AS DATE).</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="CURRENT_DATETIME"> |
| <h3>CURRENT_DATETIME</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">CURRENT_DATETIME</span></div> |
| <div class="block">The "CURRENT_DATETIME([timezone])" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="DATE_FROM_UNIX_DATE"> |
| <h3>DATE_FROM_UNIX_DATE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">DATE_FROM_UNIX_DATE</span></div> |
| <div class="block">The "DATE_FROM_UNIX_DATE(integer)" function; returns a DATE value |
| a given number of seconds after 1970-01-01.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="UNIX_DATE"> |
| <h3>UNIX_DATE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">UNIX_DATE</span></div> |
| <div class="block">The "UNIX_DATE(date)" function; returns the number of days since |
| 1970-01-01.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="MONTHNAME"> |
| <h3>MONTHNAME</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">MONTHNAME</span></div> |
| <div class="block">The "MONTHNAME(datetime)" function; returns the name of the month, |
| in the current locale, of a TIMESTAMP or DATE argument.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="DAYNAME"> |
| <h3>DAYNAME</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">DAYNAME</span></div> |
| <div class="block">The "DAYNAME(datetime)" function; returns the name of the day of the week, |
| in the current locale, of a TIMESTAMP or DATE argument.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="LEFT"> |
| <h3>LEFT</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">LEFT</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="REPEAT"> |
| <h3>REPEAT</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">REPEAT</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="RIGHT"> |
| <h3>RIGHT</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">RIGHT</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="SPACE"> |
| <h3>SPACE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">SPACE</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="STRCMP"> |
| <h3>STRCMP</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">STRCMP</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="SOUNDEX"> |
| <h3>SOUNDEX</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">SOUNDEX</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="DIFFERENCE"> |
| <h3>DIFFERENCE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">DIFFERENCE</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ILIKE"> |
| <h3>ILIKE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlSpecialOperator.html" title="class in org.apache.calcite.sql">SqlSpecialOperator</a></span> <span class="element-name">ILIKE</span></div> |
| <div class="block">The case-insensitive variant of the LIKE operator.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="NOT_ILIKE"> |
| <h3>NOT_ILIKE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlSpecialOperator.html" title="class in org.apache.calcite.sql">SqlSpecialOperator</a></span> <span class="element-name">NOT_ILIKE</span></div> |
| <div class="block">The case-insensitive variant of the NOT LIKE operator.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="RLIKE"> |
| <h3>RLIKE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlSpecialOperator.html" title="class in org.apache.calcite.sql">SqlSpecialOperator</a></span> <span class="element-name">RLIKE</span></div> |
| <div class="block">The regex variant of the LIKE operator.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="NOT_RLIKE"> |
| <h3>NOT_RLIKE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlSpecialOperator.html" title="class in org.apache.calcite.sql">SqlSpecialOperator</a></span> <span class="element-name">NOT_RLIKE</span></div> |
| <div class="block">The regex variant of the NOT LIKE operator.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="CONCAT_FUNCTION"> |
| <h3>CONCAT_FUNCTION</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">CONCAT_FUNCTION</span></div> |
| <div class="block">The "CONCAT(arg, ...)" function that concatenates strings. |
| For example, "CONCAT('a', 'bc', 'd')" returns "abcd".</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="CONCAT2"> |
| <h3>CONCAT2</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">CONCAT2</span></div> |
| <div class="block">The "CONCAT(arg0, arg1)" function that concatenates strings. |
| For example, "CONCAT('a', 'bc')" returns "abc". |
| |
| <p>It is assigned <a href="../SqlKind.html#CONCAT2"><code>SqlKind.CONCAT2</code></a> to make it not equal to |
| <a href="#CONCAT_FUNCTION"><code>CONCAT_FUNCTION</code></a>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ARRAY_LENGTH"> |
| <h3>ARRAY_LENGTH</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">ARRAY_LENGTH</span></div> |
| <div class="block">The "ARRAY_LENGTH(array)" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ARRAY_REVERSE"> |
| <h3>ARRAY_REVERSE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">ARRAY_REVERSE</span></div> |
| <div class="block">The "ARRAY_REVERSE(array)" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ARRAY_CONCAT"> |
| <h3>ARRAY_CONCAT</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">ARRAY_CONCAT</span></div> |
| <div class="block">The "ARRAY_CONCAT(array [, array]*)" function.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="REVERSE"> |
| <h3>REVERSE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">REVERSE</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="FROM_BASE64"> |
| <h3>FROM_BASE64</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">FROM_BASE64</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="TO_BASE64"> |
| <h3>TO_BASE64</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">TO_BASE64</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="TO_DATE"> |
| <h3>TO_DATE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">TO_DATE</span></div> |
| <div class="block">The "TO_DATE(string1, string2)" function; casts string1 |
| to a DATE using the format specified in string2.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="TO_TIMESTAMP"> |
| <h3>TO_TIMESTAMP</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">TO_TIMESTAMP</span></div> |
| <div class="block">The "TO_TIMESTAMP(string1, string2)" function; casts string1 |
| to a TIMESTAMP using the format specified in string2.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="TIMESTAMP_SECONDS"> |
| <h3>TIMESTAMP_SECONDS</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">TIMESTAMP_SECONDS</span></div> |
| <div class="block">The "TIMESTAMP_SECONDS(bigint)" function; returns a TIMESTAMP value |
| a given number of seconds after 1970-01-01 00:00:00.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="TIMESTAMP_MILLIS"> |
| <h3>TIMESTAMP_MILLIS</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">TIMESTAMP_MILLIS</span></div> |
| <div class="block">The "TIMESTAMP_MILLIS(bigint)" function; returns a TIMESTAMP value |
| a given number of milliseconds after 1970-01-01 00:00:00.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="TIMESTAMP_MICROS"> |
| <h3>TIMESTAMP_MICROS</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">TIMESTAMP_MICROS</span></div> |
| <div class="block">The "TIMESTAMP_MICROS(bigint)" function; returns a TIMESTAMP value |
| a given number of micro-seconds after 1970-01-01 00:00:00.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="UNIX_SECONDS"> |
| <h3>UNIX_SECONDS</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">UNIX_SECONDS</span></div> |
| <div class="block">The "UNIX_SECONDS(bigint)" function; returns the number of seconds |
| since 1970-01-01 00:00:00.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="UNIX_MILLIS"> |
| <h3>UNIX_MILLIS</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">UNIX_MILLIS</span></div> |
| <div class="block">The "UNIX_MILLIS(bigint)" function; returns the number of milliseconds |
| since 1970-01-01 00:00:00.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="UNIX_MICROS"> |
| <h3>UNIX_MICROS</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">UNIX_MICROS</span></div> |
| <div class="block">The "UNIX_MICROS(bigint)" function; returns the number of microseconds |
| since 1970-01-01 00:00:00.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="CHR"> |
| <h3>CHR</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">CHR</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="TANH"> |
| <h3>TANH</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">TANH</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="COSH"> |
| <h3>COSH</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">COSH</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="SINH"> |
| <h3>SINH</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">SINH</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="MD5"> |
| <h3>MD5</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">MD5</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="SHA1"> |
| <h3>SHA1</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></span> <span class="element-name">SHA1</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="INFIX_CAST"> |
| <h3>INFIX_CAST</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></span> <span class="element-name">INFIX_CAST</span></div> |
| <div class="block">Infix "::" cast operator used by PostgreSQL, for example |
| <code>'100'::INTEGER</code>.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="NULL_SAFE_EQUAL"> |
| <h3>NULL_SAFE_EQUAL</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="../SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></span> <span class="element-name">NULL_SAFE_EQUAL</span></div> |
| <div class="block">NULL-safe "<=>" equal operator used by MySQL, for example |
| <code>1<=>NULL</code>.</div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
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