Function
ROLLBACK PREPARED cancels a transaction ready for two-phase committing.
Precautions
- The function is only available in maintenance mode (when GUC parameter xc_maintenance_mode is on). Exercise caution when enabling the mode. It is used by maintenance engineers for troubleshooting. Common users should not use the mode.
- Only the user that initiates a transaction or the system administrator can roll back the transaction.
- The transaction function is maintained automatically by the database, and should be not visible to users.
Syntax
| ROLLBACK PREPARED transaction_id ;
|
Parameter Description
transaction_id
Specifies the identifier of the transaction to be submitted. The identifier must be different from those for current prepared transactions.