Practical PostgreSQL

Drop Operator

Removes an operator from the database.

Synopsis

DROP OPERATOR op
    ( { lefttype | NONE } ,
      { righttype | NONE } )

Parameters

op The operator you wish to remove.

lefttype | NONE

The operator’s left argument type (or NONE, if it does not have a left argument).

righttype | NONE

The operator’s right argument type (or NONE, if it does not have a right argument).

Results

DROP

The message returned when a user is dropped successfully.

ERROR: RemoveOperator: binary operator 'op' taking 'lefttype' and 'righttype' does not exist

The error returned if you specify a binary operator that does not exist.

ERROR: RemoveOperator: left unary operator 'op' taking 'lefttype' does not exist

The error returned if you specify a left unary operator that does not exist.

ERROR: RemoveOperator: right unary operator 'op' taking 'righttype' does not exist

The error returned if you specify a right unary operator that does not exist.

Description

Use the DROP OPERATOR command to remove an existing operator from the database. You can only drop an operator if you are the operator’s owner or a superuser.

Note

Removing an operator when there are access methods or operator classes that rely on it can cause problems; be sure you know what elements of your database rely on an operator before dropping it.

Example

The following example drops the binary !# operator for the integer data types:

booktown=# DROP OPERATOR !# (integer, integer); ...