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   2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>DROP OPERATOR</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="sql-dropmaterializedview.html" title="DROP MATERIALIZED VIEW" /><link rel="next" href="sql-dropopclass.html" title="DROP OPERATOR CLASS" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">DROP OPERATOR</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-dropmaterializedview.html" title="DROP MATERIALIZED VIEW">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><th width="60%" align="center">SQL Commands</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 18.0 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-dropopclass.html" title="DROP OPERATOR CLASS">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-DROPOPERATOR"><div class="titlepage"></div><a id="id-1.9.3.119.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">DROP OPERATOR</span></h2><p>DROP OPERATOR — remove an operator</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
   3 DROP OPERATOR [ IF EXISTS ] <em class="replaceable"><code>name</code></em> ( { <em class="replaceable"><code>left_type</code></em> | NONE } , <em class="replaceable"><code>right_type</code></em> ) [, ...] [ CASCADE | RESTRICT ]
   4 </pre></div><div class="refsect1" id="id-1.9.3.119.5"><h2>Description</h2><p>
   5    <code class="command">DROP OPERATOR</code> drops an existing operator from
   6    the database system.  To execute this command you must be the owner
   7    of the operator.
   8   </p></div><div class="refsect1" id="id-1.9.3.119.6"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">IF EXISTS</code></span></dt><dd><p>
   9       Do not throw an error if the operator does not exist. A notice is issued
  10       in this case.
  11      </p></dd><dt><span class="term"><em class="replaceable"><code>name</code></em></span></dt><dd><p>
  12       The name (optionally schema-qualified) of an existing operator.
  13      </p></dd><dt><span class="term"><em class="replaceable"><code>left_type</code></em></span></dt><dd><p>
  14       The data type of the operator's left operand; write
  15       <code class="literal">NONE</code> if the operator has no left operand.
  16      </p></dd><dt><span class="term"><em class="replaceable"><code>right_type</code></em></span></dt><dd><p>
  17       The data type of the operator's right operand.
  18      </p></dd><dt><span class="term"><code class="literal">CASCADE</code></span></dt><dd><p>
  19       Automatically drop objects that depend on the operator (such as views
  20       using it), and in turn all objects that depend on those objects
  21       (see <a class="xref" href="ddl-depend.html" title="5.15. Dependency Tracking">Section 5.15</a>).
  22      </p></dd><dt><span class="term"><code class="literal">RESTRICT</code></span></dt><dd><p>
  23       Refuse to drop the operator if any objects depend on it.  This
  24       is the default.
  25      </p></dd></dl></div></div><div class="refsect1" id="id-1.9.3.119.7"><h2>Examples</h2><p>
  26    Remove the power operator <code class="literal">a^b</code> for type <code class="type">integer</code>:
  27 </p><pre class="programlisting">
  28 DROP OPERATOR ^ (integer, integer);
  29 </pre><p>
  30   </p><p>
  31    Remove the bitwise-complement prefix operator
  32    <code class="literal">~b</code> for type <code class="type">bit</code>:
  33 </p><pre class="programlisting">
  34 DROP OPERATOR ~ (none, bit);
  35 </pre><p>
  36   </p><p>
  37    Remove multiple operators in one command:
  38 </p><pre class="programlisting">
  39 DROP OPERATOR ~ (none, bit), ^ (integer, integer);
  40 </pre></div><div class="refsect1" id="id-1.9.3.119.8"><h2>Compatibility</h2><p>
  41    There is no <code class="command">DROP OPERATOR</code> statement in the SQL standard.
  42   </p></div><div class="refsect1" id="id-1.9.3.119.9"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-createoperator.html" title="CREATE OPERATOR"><span class="refentrytitle">CREATE OPERATOR</span></a>, <a class="xref" href="sql-alteroperator.html" title="ALTER OPERATOR"><span class="refentrytitle">ALTER OPERATOR</span></a></span></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sql-dropmaterializedview.html" title="DROP MATERIALIZED VIEW">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-dropopclass.html" title="DROP OPERATOR CLASS">Next</a></td></tr><tr><td width="40%" align="left" valign="top">DROP MATERIALIZED VIEW </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 18.0 Documentation">Home</a></td><td width="40%" align="right" valign="top"> DROP OPERATOR CLASS</td></tr></table></div></body></html>