Supported versions: Current (18) / 17 / 16 / 15 / 14

Development versions: 19 / 20devel

Unsupported versions: 13 / 12 / 11 / 10 / 9.6 / 9.5 / 9.4 / 9.3 / 9.2 / 9.1 / 9.0 / 8.4 / 8.3 / 8.2 / 8.1 / 8.0 / 7.4 / 7.3 / 7.2 / 7.1

Historical version. PostgreSQL 8.4 has reached end of support. See the current manual.

DROP INDEX

Name

DROP INDEX -- remove an index

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

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

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 index to remove.
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.

This command will remove the index title_idx:

DROP INDEX title_idx;

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

Read the upstream documentation. For corrections, first check the current manual.