DROP OPERATOR

DROP OPERATOR — remove an operator

Synopsis

DROP OPERATOR [ IF EXISTS ] name ( { left_type | NONE } , { right_type | NONE } ) [, ...] [ CASCADE | RESTRICT ]

Description

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

Parameters

  • IF EXISTS

    • Do not throw an error if the operator does not exist. A notice is issued in this case.
  • name

    • The name (optionally schema-qualified) of an existing operator.
  • left_type

    • The data type of the operator's left operand; write NONE if the operator has no left operand.
  • right_type

    • The data type of the operator's right operand; write NONE if the operator has no right operand.
  • CASCADE

    • Automatically 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).
  • RESTRICT

    • Refuse to drop the operator if any objects depend on it. This is the default.

Examples

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);

Compatibility

There is no DROP OPERATOR statement in the SQL standard.

See Also

CREATE OPERATOR, ALTER OPERATOR