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Removes a schema.
DROP SCHEMA [IF EXISTS] name [, ...] [CASCADE | RESTRICT]
DROP SCHEMA removes schemas from the database. A schema can only be dropped by its owner or a superuser. Note that the owner can drop the schema (and thereby all contained objects) even if he does not own some of the objects within the schema.
- IF EXISTS
- Do not throw an error if the schema does not exist. A notice is issued in this case.
- The name of the schema to remove.
- Automatically drops any objects contained in the schema (tables, functions, etc.).
- Refuse to drop the schema if it contains any objects. This is the default.
Remove the schema mystuff from the database, along with everything it contains:
DROP SCHEMA mystuff CASCADE;
DROP SCHEMA is fully conforming with the SQL standard, except that the standard only allows one schema to be dropped per command. Also, the IF EXISTS option is a Greenplum Database extension.