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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:17:33 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:17:33 +0000 |
| commit | 5e45211a64149b3c659b90ff2de6fa982a5a93ed (patch) | |
| tree | 739caf8c461053357daa9f162bef34516c7bf452 /doc/src/sgml/html/sql-dropcast.html | |
| parent | Initial commit. (diff) | |
| download | postgresql-15-5e45211a64149b3c659b90ff2de6fa982a5a93ed.tar.xz postgresql-15-5e45211a64149b3c659b90ff2de6fa982a5a93ed.zip | |
Adding upstream version 15.5.upstream/15.5
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/src/sgml/html/sql-dropcast.html')
| -rw-r--r-- | doc/src/sgml/html/sql-dropcast.html | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/doc/src/sgml/html/sql-dropcast.html b/doc/src/sgml/html/sql-dropcast.html new file mode 100644 index 0000000..675e77b --- /dev/null +++ b/doc/src/sgml/html/sql-dropcast.html @@ -0,0 +1,26 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!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 CAST</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-dropaggregate.html" title="DROP AGGREGATE" /><link rel="next" href="sql-dropcollation.html" title="DROP COLLATION" /></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 CAST</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-dropaggregate.html" title="DROP AGGREGATE">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 15.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-dropcollation.html" title="DROP COLLATION">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-DROPCAST"><div class="titlepage"></div><a id="id-1.9.3.105.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">DROP CAST</span></h2><p>DROP CAST — remove a cast</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis"> +DROP CAST [ IF EXISTS ] (<em class="replaceable"><code>source_type</code></em> AS <em class="replaceable"><code>target_type</code></em>) [ CASCADE | RESTRICT ] +</pre></div><div class="refsect1" id="SQL-DROPCAST-DESCRIPTION"><h2>Description</h2><p> + <code class="command">DROP CAST</code> removes a previously defined cast. + </p><p> + To be able to drop a cast, you must own the source or the target + data type. These are the same privileges that are required to + create a cast. + </p></div><div class="refsect1" id="id-1.9.3.105.6"><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 cast does not exist. A notice is issued + in this case. + </p></dd><dt><span class="term"><em class="replaceable"><code>source_type</code></em></span></dt><dd><p> + The name of the source data type of the cast. + </p></dd><dt><span class="term"><em class="replaceable"><code>target_type</code></em></span></dt><dd><p> + The name of the target data type of the cast. + </p></dd><dt><span class="term"><code class="literal">CASCADE</code><br /></span><span class="term"><code class="literal">RESTRICT</code></span></dt><dd><p> + These key words do not have any effect, since there are no + dependencies on casts. + </p></dd></dl></div></div><div class="refsect1" id="SQL-DROPCAST-EXAMPLES"><h2>Examples</h2><p> + To drop the cast from type <code class="type">text</code> to type <code class="type">int</code>: +</p><pre class="programlisting"> +DROP CAST (text AS int); +</pre></div><div class="refsect1" id="SQL-DROPCAST-COMPAT"><h2>Compatibility</h2><p> + The <code class="command">DROP CAST</code> command conforms to the SQL standard. + </p></div><div class="refsect1" id="id-1.9.3.105.9"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-createcast.html" title="CREATE CAST"><span class="refentrytitle">CREATE CAST</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-dropaggregate.html" title="DROP AGGREGATE">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-dropcollation.html" title="DROP COLLATION">Next</a></td></tr><tr><td width="40%" align="left" valign="top">DROP AGGREGATE </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> DROP COLLATION</td></tr></table></div></body></html>
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