PostgreSQL 9.3.4 文档
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DROP FOREIGN DATA WRAPPER

Name

DROP FOREIGN DATA WRAPPER -- remove a foreign-data wrapper

Synopsis

DROP FOREIGN DATA WRAPPER [ IF EXISTS ] name [ CASCADE | RESTRICT ]

描述

DROP FOREIGN DATA WRAPPER removes an existing foreign-data wrapper. To execute this command, the current user must be the owner of the foreign-data wrapper.

参数

IF EXISTS

Do not throw an error if the foreign-data wrapper does not exist. A notice is issued in this case.

name

The name of an existing foreign-data wrapper.

CASCADE

Automatically drop objects that depend on the foreign-data wrapper (such as servers).

RESTRICT

Refuse to drop the foreign-data wrappers if any objects depend on it. This is the default.

例子

Drop the foreign-data wrapper dbi: 

DROP FOREIGN DATA WRAPPER dbi;

兼容性

DROP FOREIGN DATA WRAPPER conforms to ISO/IEC 9075-9 (SQL/MED). The IF EXISTS clause is a PostgreSQL extension.

参见

CREATE FOREIGN DATA WRAPPER, ALTER FOREIGN DATA WRAPPER
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