DROP OPERATOR
Name
DROP OPERATOR -- remove a user-defined operator
Synopsis
DROP OPERATOR name ( lefttype | NONE , righttype | 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
- name
The name (optionally schema-qualified) of an existing operator.
- lefttype
The data type of the operator's left operand; write
NONE if the operator has no left operand.
- righttype
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.
- RESTRICT
Refuse to drop the operator if any objects depend on it. This
is the default.
Diagnostics
- DROP OPERATOR
Message returned if the command was successful.
- ERROR: RemoveOperator: binary operator 'name' taking 'lefttype' and 'righttype' does not exist
This message is returned if the specified binary operator does not exist.
- ERROR: RemoveOperator: left unary operator 'name' taking 'lefttype' does not exist
This message is returned if the specified left unary operator
does not exist.
- ERROR: RemoveOperator: right unary operator 'name' taking 'righttype' does not exist
This message is returned if the specified right unary operator
does not exist.
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 integer:
DROP OPERATOR ! (integer, none);
Compatibility
There is no DROP OPERATOR statement in the SQL standard.