Stops the current transaction.
ROLLBACK [WORK | TRANSACTION] [AND [NO] CHAIN]
ROLLBACK rolls back the current transaction and causes all the updates made by the transaction to be discarded.
WORK
TRANSACTION
Optional key words. They have no effect.
AND CHAIN
If AND CHAIN is specified, a new transaction is immediately started with the same transaction characteristics (see SET TRANSACTION) as the just finished one. Otherwise, no new transaction is started.
Use COMMIT to successfully end the current transaction.
Issuing ROLLBACK when not inside a transaction block emits a warning and otherwise has no effect. ROLLBACK AND CHAIN outside of a transaction block is an error.
To discard all changes made in the current transaction:
ROLLBACK;
The command ROLLBACK conforms to the SQL standard. The form ROLLBACK TRANSACTION is a Apache Cloudberry extension.