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- <!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 V1.79.1" /><link rel="prev" href="sql-dropmaterializedview.html" title="DROP MATERIALIZED VIEW" /><link rel="next" href="sql-dropopclass.html" title="DROP OPERATOR CLASS" /></head><body><div xmlns="http://www.w3.org/TR/xhtml1/transitional" 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 12.4 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></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">
- 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> | NONE } ) [, ...] [ CASCADE | RESTRICT ]
- </pre></div><div class="refsect1" id="id-1.9.3.119.5"><h2>Description</h2><p>
- <code class="command">DROP OPERATOR</code> drops an existing operator from
- the database system. To execute this command you must be the owner
- of the operator.
- </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>
- Do not throw an error if the operator does not exist. A notice is issued
- in this case.
- </p></dd><dt><span class="term"><em class="replaceable"><code>name</code></em></span></dt><dd><p>
- The name (optionally schema-qualified) of an existing operator.
- </p></dd><dt><span class="term"><em class="replaceable"><code>left_type</code></em></span></dt><dd><p>
- The data type of the operator's left operand; write
- <code class="literal">NONE</code> if the operator has no left operand.
- </p></dd><dt><span class="term"><em class="replaceable"><code>right_type</code></em></span></dt><dd><p>
- The data type of the operator's right operand; write
- <code class="literal">NONE</code> if the operator has no right operand.
- </p></dd><dt><span class="term"><code class="literal">CASCADE</code></span></dt><dd><p>
- Automatically drop objects that depend on the operator (such as views
- using it), and in turn all objects that depend on those objects
- (see <a class="xref" href="ddl-depend.html" title="5.14. Dependency Tracking">Section 5.14</a>).
- </p></dd><dt><span class="term"><code class="literal">RESTRICT</code></span></dt><dd><p>
- Refuse to drop the operator if any objects depend on it. This
- is the default.
- </p></dd></dl></div></div><div class="refsect1" id="id-1.9.3.119.7"><h2>Examples</h2><p>
- Remove the power operator <code class="literal">a^b</code> for type <code class="type">integer</code>:
- </p><pre class="programlisting">
- DROP OPERATOR ^ (integer, integer);
- </pre><p>
- </p><p>
- Remove the left unary bitwise complement operator
- <code class="literal">~b</code> for type <code class="type">bit</code>:
- </p><pre class="programlisting">
- DROP OPERATOR ~ (none, bit);
- </pre><p>
- </p><p>
- Remove the right unary factorial operator <code class="literal">x!</code>
- for type <code class="type">bigint</code>:
- </p><pre class="programlisting">
- DROP OPERATOR ! (bigint, none);
- </pre><p>
- Remove multiple operators in one command:
- </p><pre class="programlisting">
- DROP OPERATOR ~ (none, bit), ! (bigint, none);
- </pre></div><div class="refsect1" id="id-1.9.3.119.8"><h2>Compatibility</h2><p>
- There is no <code class="command">DROP OPERATOR</code> statement in the SQL standard.
- </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">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-dropopclass.html">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">Home</a></td><td width="40%" align="right" valign="top"> DROP OPERATOR CLASS</td></tr></table></div></body></html>
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