Listen/Notify in 9.0
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From: Tom Lane on 15 Jul 2010 15:47 Kaare Rasmussen <kaare(a)jasonic.dk> writes: > As I understand the changes to the notification system in 9.0, apart from > being able to carry a payload, it will guarantee the order of delivery, and > also it will keep the notification and notify any listener, even if the > listener didn't register at the time of notification. Is this correct? Well, order of delivery depends on commit order, so there's only a pretty weak guarantee there, although I guess it is stronger than before. As for the other thing, listeners are *not* guaranteed to get any notices that were committed before they commit their LISTEN. They are guaranteed to get ones that were committed afterwards, but that's the same as before. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers(a)postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers |