Computer Science
DROP_OPERATOR(l) DROP_OPERATOR(l)
NAME
DROP OPERATOR - Removes an operator from the database
SYNOPSIS
DROP OPERATOR id ( type | NONE [,...] )
INPUTS
id The identifier of an existing operator.
type The type of function parameters.
OUTPUTS
DROP The message returned if the command is successful.
ERROR: RemoveOperator: binary operator 'oper' taking
'type' and 'type2' does not exist
This message occurs if the specified binary opera-
tor does not exist.
ERROR: RemoveOperator: left unary operator 'oper' taking
'type' does not exist
This message occurs if the specified left unary
operator specified does not exist.
ERROR: RemoveOperator: right unary operator 'oper' taking
'type' does not exist
This message occurs if the specified 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, may be specified as NONE.
NOTES
The DROP OPERATOR statement is a Postgres language exten-
sion.
Refer to create_operator(l) for information on how to cre-
ate operators.
It is the user's responsibility to remove any access meth-
ods and operator classes that rely on the deleted opera-
tor.
USAGE
Remove power operator a^n for int4:
DROP OPERATOR ^ (int4, int4);
Remove left unary negation operator (b !) for booleans:
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 15 August 1999 1
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