Re: does the notification of postgres appear in transaction completed order
Tom Lane <[email protected]>
| Newsgroups | gmane.comp.db.postgresql.sql |
|---|---|
| Message-ID | <[email protected]> |
abctevez <[email protected]> writes: > I want to use notify/listen to catch the message that a transaction completed.Fire notify in trigger and as the official said, it won't notify if transaction rollback.However, I am wondering if the message appear in the same order with transaction execution.I couldn't find this topic on the official web or just I missed it? https://www.postgresql.org/docs/current/static/sql-notify.html says Except for dropping later instances of duplicate notifications, NOTIFY guarantees that notifications from the same transaction get delivered in the order they were sent. It is also guaranteed that messages from different transactions are delivered in the order in which the transactions committed. regards, tom lane