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><H1
><A
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>DROP DOMAIN</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN73561"
></A
><H2
>Name</H2
>DROP DOMAIN&nbsp;--&nbsp;remove a domain</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN73566"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>DROP DOMAIN [ IF EXISTS ] <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> [, ...] [ CASCADE | RESTRICT ]</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN73569"
></A
><H2
>Description</H2
><P
>   <TT
CLASS="COMMAND"
>DROP DOMAIN</TT
> removes a domain.  Only the owner of
   a domain can remove it.
  </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN73573"
></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 domain 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 (optionally schema-qualified) of an existing domain.
     </P
></DD
><DT
><TT
CLASS="LITERAL"
>CASCADE</TT
></DT
><DD
><P
>      Automatically drop objects that depend on the domain (such as
      table columns).
     </P
></DD
><DT
><TT
CLASS="LITERAL"
>RESTRICT</TT
></DT
><DD
><P
>      Refuse to drop the domain if any objects depend on it.  This is
      the default.
     </P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="SQL-DROPDOMAIN-EXAMPLES"
></A
><H2
>Examples</H2
><P
>   To remove the domain <TT
CLASS="TYPE"
>box</TT
>:

</P><PRE
CLASS="PROGRAMLISTING"
>DROP DOMAIN box;</PRE
><P></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="SQL-DROPDOMAIN-COMPATIBILITY"
></A
><H2
>Compatibility</H2
><P
>   This command conforms to the SQL standard, except for the
   <TT
CLASS="LITERAL"
>IF EXISTS</TT
> option, which is a <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>
   extension.
  </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="SQL-DROPDOMAIN-SEE-ALSO"
></A
><H2
>See Also</H2
><A
HREF="sql-createdomain.html"
>CREATE DOMAIN</A
>, <A
HREF="sql-alterdomain.html"
>ALTER DOMAIN</A
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