DROP OPERATOR id ( type | NONE [,...] )
The identifier of an existing operator.
The type of function parameters.
The message returned if the command is successful.
This message occurs if the specified binary operator does not exist.
This message occurs if the specified left unary operator specified does not exist.
This message occurs if the specified right unary operator specified does not exist.
The DROP OPERATOR statement 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.
The DROP OPERATOR statement is a Postgres language extension.
Refer to CREATE OPERATOR for information on how to create operators.
It is the user's responsibility to remove any access methods and operator classes that rely on the deleted operator.
Remove power operator a^n for int4:
DROP OPERATOR ^ (int4, int4);
Remove left unary operator !a for booleans:
DROP OPERATOR ! (none, bool);
Remove right unary factorial operator a! for int4:
DROP OPERATOR ! (int4, none);
There is no DROP OPERATOR in SQL92.