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| DROP TYPE(7) | PostgreSQL 12.21 Documentation | DROP TYPE(7) |
NAME¶
DROP_TYPE - remove a data type
SYNOPSIS¶
DROP TYPE [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ]
DESCRIPTION¶
DROP TYPE removes a user-defined data type. Only the owner of a type can remove it.
PARAMETERS¶
IF EXISTS
Do not throw an error if the type does not exist. A
notice is issued in this case.
name
The name (optionally schema-qualified) of the data type
to remove.
CASCADE
Automatically drop objects that depend on the type (such
as table columns, functions, and operators), and in turn all objects that
depend on those objects (see Section 5.14).
RESTRICT
Refuse to drop the type if any objects depend on it. This
is the default.
EXAMPLES¶
To remove the data type box:
DROP TYPE box;
COMPATIBILITY¶
This command is similar to the corresponding command in the SQL standard, apart from the IF EXISTS option, which is a PostgreSQL extension. But note that much of the CREATE TYPE command and the data type extension mechanisms in PostgreSQL differ from the SQL standard.
SEE ALSO¶
ALTER TYPE (ALTER_TYPE(7)), CREATE TYPE (CREATE_TYPE(7))
| 2024 | PostgreSQL 12.21 |