DROP SEQUENCE

Removes a sequence.

Synopsis

  1. DROP SEQUENCE [IF EXISTS]  <name> [, ...] [CASCADE | RESTRICT]

Description

DROP SEQUENCE removes a sequence generator table. You must own the sequence to drop it (or be a superuser).

Parameters

IF EXISTS

Do not throw an error if the sequence does not exist. A notice is issued in this case.

<name>

The name (optionally schema-qualified) of the sequence to remove.

CASCADE

Automatically drop objects that depend on the sequence.

RESTRICT

Refuse to drop the sequence if any objects depend on it. This is the default.

Examples

Remove the sequence myserial:

  1. DROP SEQUENCE myserial;

Compatibility

DROP SEQUENCE is fully conforming with the SQL standard, except that the standard only allows one sequence to be dropped per command. Also, the IF EXISTS option is a HAWQ extension.

See Also

ALTER SEQUENCE, CREATE SEQUENCE