| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Rod Taylor <rbt(at)rbt(dot)ca> |
| Cc: | Paulo Scardine <paulos(at)cimed(dot)ind(dot)br>, PostgreSQL Development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: SELECT FOR UPDATE NOWAIT |
| Date: | 2003-07-22 01:09:59 |
| Message-ID: | 200307220109.h6M19xi07252@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
Rod Taylor wrote:
-- Start of PGP signed section.
> On Fri, 2003-07-18 at 19:46, Paulo Scardine wrote:
> > My boss is asking for something like Oracle's "SELECT FOR UPDATE NOWAIT".
> >
> > Is there any such feature? If no, should I look forward into implementing
> > this? Any advice?
>
> Lookup STATEMENT_TIMEOUT and set it to a very short time.
Some people have said they want to distinguish between a slow query
(busy system) and waiting on a lock. I can particulary see wanting to
do a NOWAIT only on exclusive locks --- not sure how many really want
that, though.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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