ROLLBACK PREPARED

제목

ROLLBACK PREPARED -- cancel a transaction that was earlier prepared for two-phase commit

요약

ROLLBACK PREPARED transaction_id

설명

ROLLBACK PREPARED rolls back a transaction that is in prepared state.

매개 변수

transaction_id

The transaction identifier of the transaction that is to be rolled back.

참고

To roll back a prepared transaction, you must be either the same user that executed the transaction originally, or a superuser. But you do not have to be in the same session that executed the transaction.

This command cannot be executed inside a transaction block. The prepared transaction is rolled back immediately.

All currently available prepared transactions are listed in the pg_prepared_xacts system view.

Examples

Roll back the transaction identified by the transaction identifier foobar:

ROLLBACK PREPARED 'foobar';

호환성

ROLLBACK PREPARED is a PostgreSQL extension. It is intended for use by external transaction management systems, some of which are covered by standards (such as X/Open XA), but the SQL side of those systems is not standardized.

관련 항목

PREPARE TRANSACTION, COMMIT PREPARED