The PostgreSQL 9.0 Reference Manual - Volume 1B - SQL Command Reference by The PostgreSQL Global Development Group Paperback (6"x9"), 488 pages ISBN 9781906966058 RRP £14.95 ($19.95) Sales of this book support the PostgreSQL project! Get a printed copy>>>

PostgreSQL 9.0 Reference Manual Volume 1B Buy the book here! >>> learn more

1.125 ROLLBACK PREPARED

Name

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

Synopsis

ROLLBACK PREPARED transaction_id

Description

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

Parameters

transaction_id

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

Notes

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';

See Also

PREPARE TRANSACTION, COMMIT PREPARED