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RedHat 9 (Linux i386) - man page for drop_operator (redhat section 7)

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DROP OPERATOR(7)			   SQL Commands 			 DROP OPERATOR(7)

NAME
       DROP OPERATOR - remove a user-defined operator

SYNOPSIS
       DROP OPERATOR id ( lefttype | NONE , righttype | NONE ) [ CASCADE | RESTRICT ]

   INPUTS
       id     The identifier (optionally schema-qualified) of an existing operator.

       lefttype
	      The  type  of  the operator's left argument; write NONE if the operator has no left
	      argument.

       righttype
	      The type of the operator's right argument; write NONE if the operator has no  right
	      argument.

       CASCADE
	      Automatically drop objects that depend on the operator.

       RESTRICT
	      Refuse  to  drop	the  operator  if  there  are any dependent objects.  This is the
	      default.

   OUTPUTS
       DROP OPERATOR
	      The message returned if the command is successful.

       ERROR: RemoveOperator: binary operator 'oper' taking 'lefttype' and 'righttype'	does  not
       exist
	      This message occurs if the specified binary operator does not exist.

       ERROR: RemoveOperator: left unary operator 'oper' taking 'lefttype' does not exist
	      This message occurs if the left unary operator specified does not exist.

       ERROR: RemoveOperator: right unary operator 'oper' taking 'righttype' does not exist
	      This message occurs if the right unary operator specified does not exist.

DESCRIPTION
       DROP  OPERATOR  drops an existing operator from the database.  To execute this command you
       must be the owner of the operator.

       The left or right type of a left or right unary operator, respectively, must be	specified
       as NONE.

   NOTES
       The DROP OPERATOR statement is a PostgreSQL language extension.

       Refer to CREATE OPERATOR [create_operator(7)] for information on how to create operators.

USAGE
       Remove power operator a^n for int4:

       DROP OPERATOR ^ (int4, int4);

       Remove left unary negation operator (! b) for boolean:

       DROP OPERATOR ! (none, bool);

       Remove right unary factorial operator (i !) for int4:

       DROP OPERATOR ! (int4, none);

COMPATIBILITY
   SQL92
       There is no DROP OPERATOR in SQL92.

SQL - Language Statements		    2002-11-22				 DROP OPERATOR(7)
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