DROP OPERATOR(SQL - Language Statements (2002-11-DROP OPERATOR(l)
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.
and 'righttype' does not exist
ERROR: RemoveOperator: binary operator 'oper' taking 'lefttype'
This message occurs if the specified binary operator
does not exist.
ERROR: RemoveOperator: left unary operator 'oper' taking
This message occurs if the left unary operator
specified does not exist.
ERROR: RemoveOperator: right unary operator 'oper' taking
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.
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DROP OPERATOR(SQL - Language Statements (2002-11-DROP OPERATOR(l)
NOTES
The DROP OPERATOR statement is a PostgreSQL language
extension.
Refer to CREATE OPERATOR [create_operator(l)] 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.
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