| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Greg Copeland <greg(at)CopelandConsulting(dot)Net>, mlw <markw(at)mohawksoft(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Again, sorry, caching. |
| Date: | 2002-04-14 17:11:02 |
| Message-ID: | 200204141711.g3EHB2c12445@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > Also, on the NOTIFY/trigger idea, triggers are called on statement end,
> > not transaction end, so if an UPDATE query is in a multi-statement
> > transaction, another backend looking for the NOTIFY will receive it
> > before the transaction commits, meaning it will not see the update.
>
> No it won't.
Is this because NOTIFY is held for transaction end or because the
triggers are held until transaction commit?
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
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