DROP AGGREGATE

DROP AGGREGATE

Name

DROP AGGREGATE  --  remove a user-defined aggregate function

Synopsis

DROP AGGREGATE name ( type ) [ CASCADE | RESTRICT ]
  

Inputs

name

The name (optionally schema-qualified) of an existing aggregate function.

type

The input data type of the aggregate function, or * if the function accepts any input type. (Refer to the PostgreSQL User's Guide for further information about data types.)

CASCADE

Automatically drop objects that depend on the aggregate.

RESTRICT

Refuse to drop the aggregate if there are any dependent objects. This is the default.

Outputs

DROP AGGREGATE

Message returned if the command is successful.

ERROR: RemoveAggregate: aggregate 'name' for type type does not exist

This message occurs if the aggregate function specified does not exist in the database.

Description

DROP AGGREGATE will delete an existing aggregate definition. To execute this command the current user must be the owner of the aggregate.

Notes

Use CREATE AGGREGATE to create aggregate functions.

Usage

To remove the myavg aggregate for type int4:

DROP AGGREGATE myavg(int4);
  

Compatibility

SQL92

There is no DROP AGGREGATE statement in SQL92; the statement is a PostgreSQL language extension.

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