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>DROP EXTENSION</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN73618"
></A
><H2
>Name</H2
>DROP EXTENSION -- remove an extension</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN73623"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>DROP EXTENSION [ IF EXISTS ] <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> [, ...] [ CASCADE | RESTRICT ]</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN73626"
></A
><H2
>Description</H2
><P
> <TT
CLASS="COMMAND"
>DROP EXTENSION</TT
> removes extensions from the database.
Dropping an extension causes its component objects to be dropped as well.
</P
><P
> You must own the extension to use <TT
CLASS="COMMAND"
>DROP EXTENSION</TT
>.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN73632"
></A
><H2
>Parameters</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="LITERAL"
>IF EXISTS</TT
></DT
><DD
><P
> Do not throw an error if the extension does not exist. A notice is issued
in this case.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
></DT
><DD
><P
> The name of an installed extension.
</P
></DD
><DT
><TT
CLASS="LITERAL"
>CASCADE</TT
></DT
><DD
><P
> Automatically drop objects that depend on the extension.
</P
></DD
><DT
><TT
CLASS="LITERAL"
>RESTRICT</TT
></DT
><DD
><P
> Refuse to drop the extension if any objects depend on it (other than
its own member objects and other extensions listed in the same
<TT
CLASS="COMMAND"
>DROP</TT
> command). This is the default.
</P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN73656"
></A
><H2
>Examples</H2
><P
> To remove the extension <TT
CLASS="LITERAL"
>hstore</TT
> from the current
database:
</P><PRE
CLASS="PROGRAMLISTING"
>DROP EXTENSION hstore;</PRE
><P>
This command will fail if any of <TT
CLASS="LITERAL"
>hstore</TT
>'s objects
are in use in the database, for example if any tables have columns
of the <TT
CLASS="TYPE"
>hstore</TT
> type. Add the <TT
CLASS="LITERAL"
>CASCADE</TT
> option to
forcibly remove those dependent objects as well.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN73664"
></A
><H2
>Compatibility</H2
><P
> <TT
CLASS="COMMAND"
>DROP EXTENSION</TT
> is a <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>
extension.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN73669"
></A
><H2
>See Also</H2
><A
HREF="sql-createextension.html"
>CREATE EXTENSION</A
>, <A
HREF="sql-alterextension.html"
>ALTER EXTENSION</A
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