diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 13:44:03 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 13:44:03 +0000 |
| commit | 293913568e6a7a86fd1479e1cff8e2ecb58d6568 (patch) | |
| tree | fc3b469a3ec5ab71b36ea97cc7aaddb838423a0c /doc/src/sgml/html/sql-dropsubscription.html | |
| parent | Initial commit. (diff) | |
| download | postgresql-16-293913568e6a7a86fd1479e1cff8e2ecb58d6568.tar.xz postgresql-16-293913568e6a7a86fd1479e1cff8e2ecb58d6568.zip | |
Adding upstream version 16.2.upstream/16.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/src/sgml/html/sql-dropsubscription.html')
| -rw-r--r-- | doc/src/sgml/html/sql-dropsubscription.html | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/doc/src/sgml/html/sql-dropsubscription.html b/doc/src/sgml/html/sql-dropsubscription.html new file mode 100644 index 0000000..b83d4b7 --- /dev/null +++ b/doc/src/sgml/html/sql-dropsubscription.html @@ -0,0 +1,49 @@ +<?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 SUBSCRIPTION</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-dropstatistics.html" title="DROP STATISTICS" /><link rel="next" href="sql-droptable.html" title="DROP TABLE" /></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 SUBSCRIPTION</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-dropstatistics.html" title="DROP STATISTICS">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 16.2 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-droptable.html" title="DROP TABLE">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-DROPSUBSCRIPTION"><div class="titlepage"></div><a id="id-1.9.3.133.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">DROP SUBSCRIPTION</span></h2><p>DROP SUBSCRIPTION — remove a subscription</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis"> +DROP SUBSCRIPTION [ IF EXISTS ] <em class="replaceable"><code>name</code></em> [ CASCADE | RESTRICT ] +</pre></div><div class="refsect1" id="id-1.9.3.133.5"><h2>Description</h2><p> + <code class="command">DROP SUBSCRIPTION</code> removes a subscription from the + database cluster. + </p><p> + To execute this command the user must be the owner of the subscription. + </p><p> + <code class="command">DROP SUBSCRIPTION</code> cannot be executed inside a + transaction block if the subscription is associated with a replication + slot. (You can use <code class="command">ALTER SUBSCRIPTION</code> to unset the + slot.) + </p></div><div class="refsect1" id="id-1.9.3.133.6"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="replaceable"><code>name</code></em></span></dt><dd><p> + The name of a subscription to be dropped. + </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 subscriptions. + </p></dd></dl></div></div><div class="refsect1" id="id-1.9.3.133.7"><h2>Notes</h2><p> + When dropping a subscription that is associated with a replication slot on + the remote host (the normal state), <code class="command">DROP SUBSCRIPTION</code> + will connect to the remote host and try to drop the replication slot (and + any remaining table synchronization slots) as + part of its operation. This is necessary so that the resources allocated + for the subscription on the remote host are released. If this fails, + either because the remote host is not reachable or because the remote + replication slot cannot be dropped or does not exist or never existed, + the <code class="command">DROP SUBSCRIPTION</code> command will fail. To proceed + in this situation, first disable the subscription by executing + <code class="literal">ALTER SUBSCRIPTION ... DISABLE</code>, and then disassociate + it from the replication slot by executing + <code class="literal">ALTER SUBSCRIPTION ... SET (slot_name = NONE)</code>. + After that, <code class="command">DROP SUBSCRIPTION</code> will no longer attempt any + actions on a remote host. Note that if the remote replication slot still + exists, it (and any related table synchronization slots) should then be + dropped manually; otherwise it/they will continue to + reserve WAL and might eventually cause the disk to fill up. See + also <a class="xref" href="logical-replication-subscription.html#LOGICAL-REPLICATION-SUBSCRIPTION-SLOT" title="31.2.1. Replication Slot Management">Section 31.2.1</a>. + </p><p> + If a subscription is associated with a replication slot, then <code class="command">DROP + SUBSCRIPTION</code> cannot be executed inside a transaction block. + </p></div><div class="refsect1" id="id-1.9.3.133.8"><h2>Examples</h2><p> + Drop a subscription: +</p><pre class="programlisting"> +DROP SUBSCRIPTION mysub; +</pre></div><div class="refsect1" id="id-1.9.3.133.9"><h2>Compatibility</h2><p> + <code class="command">DROP SUBSCRIPTION</code> is a <span class="productname">PostgreSQL</span> + extension. + </p></div><div class="refsect1" id="id-1.9.3.133.10"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-createsubscription.html" title="CREATE SUBSCRIPTION"><span class="refentrytitle">CREATE SUBSCRIPTION</span></a>, <a class="xref" href="sql-altersubscription.html" title="ALTER SUBSCRIPTION"><span class="refentrytitle">ALTER SUBSCRIPTION</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-dropstatistics.html" title="DROP STATISTICS">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-droptable.html" title="DROP TABLE">Next</a></td></tr><tr><td width="40%" align="left" valign="top">DROP STATISTICS </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 16.2 Documentation">Home</a></td><td width="40%" align="right" valign="top"> DROP TABLE</td></tr></table></div></body></html>
\ No newline at end of file |