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>   DROP OPERATOR
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><H1
>DROP OPERATOR</H1
><DIV
CLASS="REFNAMEDIV"
><H2
>Name</H2
>   DROP OPERATOR
   &#8212;    Removes an operator from the database
  </DIV
><DIV
CLASS="REFSYNOPSISDIV"
><PRE
CLASS="SYNOPSIS"
>DROP OPERATOR <TT
CLASS="REPLACEABLE"
><I
>id</I
></TT
> ( <TT
CLASS="REPLACEABLE"
><I
>type</I
></TT
> | NONE [,...] )
  </PRE
><DIV
CLASS="REFSECT2"
><H3
>    Inputs
   </H3
><P
>   </P
><P
></P
><DL
><DT
><TT
CLASS="REPLACEABLE"
><I
>id</I
></TT
></DT
><DD
><P
>          The identifier of an existing operator.
	  </P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>type</I
></TT
></DT
><DD
><P
>          The type of function parameters.
	  </P
></DD
></DL
></DIV
><DIV
CLASS="REFSECT2"
><H3
>    Outputs
   </H3
><P
>&#13;       <P
></P
></P><DL
><DT
><SPAN
CLASS="RETURNVALUE"
>DROP</SPAN
></DT
><DD
><P
>	   The message returned if the command is successful.
	  </P
></DD
><DT
><SPAN
CLASS="RETURNVALUE"
>ERROR:  RemoveOperator: binary operator '<TT
CLASS="REPLACEABLE"
><I
>id</I
></TT
>' taking '<TT
CLASS="REPLACEABLE"
><I
>type1</I
></TT
>' and '<TT
CLASS="REPLACEABLE"
><I
>type2</I
></TT
>' does not exist</SPAN
></DT
><DD
><P
>          This message occurs if the specified binary operator does not exist.
	  </P
></DD
><DT
><SPAN
CLASS="RETURNVALUE"
>ERROR:  RemoveOperator: left unary operator '<TT
CLASS="REPLACEABLE"
><I
>id</I
></TT
>' taking '<TT
CLASS="REPLACEABLE"
><I
>type</I
></TT
>' does not exist</SPAN
></DT
><DD
><P
>          This message occurs if the specified left unary operator
 specified does not exist.
	  </P
></DD
><DT
><SPAN
CLASS="RETURNVALUE"
>ERROR:  RemoveOperator: right unary operator '<TT
CLASS="REPLACEABLE"
><I
>id</I
></TT
>' taking '<TT
CLASS="REPLACEABLE"
><I
>type</I
></TT
>' does not exist</SPAN
></DT
><DD
><P
>          This message occurs if the specified right unary operator
 specified does not exist.

   </P
></DD
></DL
><P>
  </P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><H2
>   Description
  </H2
><P
>   The DROP OPERATOR statement drops an existing operator from the
   database.
   To execute this command you must be the owner of the operator.
  </P
><P
>   The left or right type of a left or right unary
   operator, respectively, may be specified as NONE.
  </P
><DIV
CLASS="REFSECT2"
><H3
>    Notes
   </H3
><P
>    The <B
CLASS="COMMAND"
>DROP OPERATOR</B
> statement is a 
<SPAN
CLASS="PRODUCTNAME"
>Postgres</SPAN
>
    language extension.
   </P
><P
>    Refer to <B
CLASS="COMMAND"
>CREATE OPERATOR</B
> for
    information on how to create operators.
   </P
><P
>    It is the user's responsibility to remove any access methods and
    operator classes that rely on the deleted operator.
   </P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><H2
>   Usage
  </H2
><P
>   Remove power operator <TT
CLASS="LITERAL"
>a^n</TT
> for <TT
CLASS="LITERAL"
>int4</TT
>:
  </P
><PRE
CLASS="PROGRAMLISTING"
>DROP OPERATOR ^ (int4, int4);
  </PRE
><P
>   Remove left unary operator <TT
CLASS="LITERAL"
>!a</TT
> for booleans:
  </P
><PRE
CLASS="PROGRAMLISTING"
>DROP OPERATOR ! (none, bool);
  </PRE
><P
>   Remove right unary factorial operator <TT
CLASS="LITERAL"
>a!</TT
> for
   <TT
CLASS="LITERAL"
>int4</TT
>:
  </P
><PRE
CLASS="PROGRAMLISTING"
>DROP OPERATOR ! (int4, none);
  </PRE
></DIV
><DIV
CLASS="REFSECT1"
><H2
>   Compatibility
  </H2
><P
>  </P
><DIV
CLASS="REFSECT2"
><H3
>    SQL92
   </H3
><P
>   There is no <B
CLASS="COMMAND"
>DROP OPERATOR</B
> in <SPAN
CLASS="ACRONYM"
>SQL92</SPAN
>.
   </P
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