NAME¶

ALTER_OPERATOR - change the definition of an operator

SYNOPSIS¶

ALTER OPERATOR name ( { left_type | NONE } , { right_type | NONE } )


    OWNER TO { new_owner | CURRENT_USER | SESSION_USER }
ALTER OPERATOR name ( { left_type | NONE } , { right_type | NONE } )


    SET SCHEMA new_schema
ALTER OPERATOR name ( { left_type | NONE } , { right_type | NONE } )


    SET ( {  RESTRICT = { res_proc | NONE }


           | JOIN = { join_proc | NONE }


         } [, ... ] )

DESCRIPTION¶

ALTER OPERATOR changes the definition of an operator.

You must own the operator to use ALTER OPERATOR. To alter the owner, you must also be a direct or indirect member of the new owning role, and that role must have CREATE privilege on the operator's schema. (These restrictions enforce that altering the owner doesn't do anything you couldn't do by dropping and recreating the operator. However, a superuser can alter ownership of any operator anyway.)

PARAMETERS¶

name

left_type

right_type

new_owner

new_schema

res_proc

join_proc

EXAMPLES¶

Change the owner of a custom operator a @@ b for type text:

ALTER OPERATOR @@ (text, text) OWNER TO joe;

Change the restriction and join selectivity estimator functions of a custom operator a && b for type int[]:

ALTER OPERATOR && (_int4, _int4) SET (RESTRICT = _int_contsel, JOIN = _int_contjoinsel);

COMPATIBILITY¶

There is no ALTER OPERATOR statement in the SQL standard.

SEE ALSO¶

CREATE OPERATOR (CREATE_OPERATOR(7)), DROP OPERATOR (DROP_OPERATOR(7))