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Removes a sequence.
DROP SEQUENCE [IF EXISTS] name [, ...] [CASCADE | RESTRICT]
DROP SEQUENCE removes a sequence generator table. You must own the sequence to drop it (or be a superuser).
- IF EXISTS
- Do not throw an error if the sequence does not exist. A notice is issued in this case.
- The name (optionally schema-qualified) of the sequence to remove.
- Automatically drop objects that depend on the sequence.
- Refuse to drop the sequence if any objects depend on it. This is the default.
Remove the sequence myserial:
DROP SEQUENCE myserial;
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 Greenplum Database extension.