DROP OPERATOR — remove an operator
DROP OPERATOR [ IF EXISTS ]name( {left_type| NONE } , {right_type| NONE } ) [, ...] [ CASCADE | RESTRICT ]
DROP OPERATOR drops an existing operator from the database system. To execute this command you must be the owner of the operator.
IF EXISTSDo not throw an error if the operator does not exist. A notice is issued in this case.
nameThe name (optionally schema-qualified) of an existing operator.
left_typeThe data type of the operator's left operand; write NONE if the operator has no left operand.
right_typeThe data type of the operator's right operand; write NONE if the operator has no right operand.
CASCADEAutomatically drop objects that depend on the operator (such as views using it), and in turn all objects that depend on those objects (see Section 5.13).
RESTRICTRefuse to drop the operator if any objects depend on it. This is the default.
Remove the power operator a^b for type integer:
DROP OPERATOR ^ (integer, integer);
Remove the left unary bitwise complement operator ~b for type bit:
DROP OPERATOR ~ (none, bit);
Remove the right unary factorial operator x! for type bigint:
DROP OPERATOR ! (bigint, none);
Remove multiple operators in one command:
DROP OPERATOR ~ (none, bit), ! (bigint, none);
There is no DROP OPERATOR statement in the SQL standard.