PostgreSQL
ROLLBACK PREPARED
ROLLBACK PREPARED — cancel a transaction that was earlier prepared for two-phase commit
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';
Compatibility
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.
See Also
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