Once a RELEASE SAVEPOINT statement has been executed or the transaction has ended, you can no longer use the savepoint. Releasing a savepoint frees up the version pages that have been used, up to that savepoint. Remember that data is versioned at the page level internally. Sybase IQ maintains a separate copy of just the updated pages; the remaining pages are shared with the previous version. By releasing savepoints, you free up the pages associated with them, and thus make better use of your disk space.
Releasing savepoint n both releases all resources after that savepoint, and gives up your ability to roll back to any intermediate savepoints.
No locks are released by the RELEASE SAVEPOINT command.
