DROP INDEX

DROP INDEX

Removes an index.

Synopsis

DROP INDEX [IF EXISTS] name [, ...] [CASCADE | RESTRICT]

Description

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

Parameters

IF EXISTS
Do not throw an error if the index does not exist. A notice is issued in this case.
name
The name (optionally schema-qualified) of an existing index.
CASCADE
Automatically drop objects that depend on the index.
RESTRICT
Refuse to drop the index if any objects depend on it. This is the default.

Examples

Remove the index title_idx:

DROP INDEX title_idx;

Compatibility

DROP INDEX is a Greenplum Database language extension. There are no provisions for indexes in the SQL standard.