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DROP DOMAIN

Removes a domain.

Synopsis

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

Description

DROP DOMAIN removes a previously defined domain. Only the owner of a domain can remove it.

Parameters

  • IF EXISTS
    • Do not throw an error if the domain does not exist. A notice is issued in this case.
  • name
    • The name (optionally schema-qualified) of an existing domain.
  • CASCADE
    • Automatically drop objects that depend on the domain (such as table columns), and in turn all objects that depend on those objects.
  • RESTRICT
    • Refuse to drop the domain if any objects depend on it. This is the default.

Examples

Remove the domain named us_postal_code:

DROP DOMAIN us_postal_code;

Compatibility

This command conforms to the SQL standard, except for the IF EXISTS option, which is a Database extension.

See Also

ALTER DOMAIN, CREATE DOMAIN