<!--
doc/src/sgml/ref/drop_subscription.sgml
PostgreSQL documentation
-->

<refentry id="SQL-DROPSUBSCRIPTION">
 <indexterm zone="sql-dropsubscription">
  <primary>DROP SUBSCRIPTION</primary>
 </indexterm>

 <refmeta>
  <refentrytitle>DROP SUBSCRIPTION</refentrytitle>
  <manvolnum>7</manvolnum>
  <refmiscinfo>SQL - Language Statements</refmiscinfo>
 </refmeta>

 <refnamediv>
  <refname>DROP SUBSCRIPTION</refname>
  <refpurpose>remove a subscription</refpurpose>
 </refnamediv>

 <refsynopsisdiv>
<synopsis>
DROP SUBSCRIPTION [ IF EXISTS ] <replaceable class="parameter">name</replaceable> [ DROP SLOT | NODROP SLOT ]
</synopsis>
 </refsynopsisdiv>

 <refsect1>
  <title>Description</title>

  <para>
   <command>DROP SUBSCRIPTION</command> removes a subscription from the
   database cluster.
  </para>

  <para>
   A subscription can only be dropped by a superuser.
  </para>

  <para>
   <command>DROP SUBSCRIPTION</command> cannot be executed inside a
   transaction block when <literal>DROP SLOT</literal> is specified.
  </para>
 </refsect1>

 <refsect1>
  <title>Parameters</title>

  <variablelist>
   <varlistentry>
    <term><replaceable class="parameter">name</replaceable></term>
    <listitem>
     <para>
      The name of a subscription to be dropped.
     </para>
    </listitem>
   </varlistentry>

   <varlistentry>
    <term><literal>DROP SLOT</literal></term>
    <term><literal>NODROP SLOT</literal></term>
    <listitem>
     <para>
      Specifies whether to drop the replication slot on the publisher.  The
      default is
      <literal>DROP SLOT</literal>.
     </para>

     <para>
      If the publisher is not reachable when the subscription is to be
      dropped, then it is useful to specify <literal>NODROP SLOT</literal>.
      But the replication slot on the publisher will then have to be removed
      manually.
     </para>
    </listitem>
   </varlistentry>

  </variablelist>
 </refsect1>

 <refsect1>
  <title>Examples</title>

  <para>
   Drop a subscription:
<programlisting>
DROP SUBSCRIPTION mysub;
</programlisting>
  </para>

 </refsect1>

 <refsect1>
  <title>Compatibility</title>

  <para>
   <command>DROP SUBSCRIPTION</command> is a <productname>PostgreSQL</>
   extension.
  </para>
 </refsect1>

 <refsect1>
  <title>See Also</title>

  <simplelist type="inline">
   <member><xref linkend="sql-createsubscription"></member>
   <member><xref linkend="sql-altersubscription"></member>
  </simplelist>
 </refsect1>
</refentry>
