| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Leon Oosterwijk <leon(at)isdn(dot)net> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Question about Threads |
| Date: | 2003-11-09 01:58:09 |
| Message-ID: | 200311090158.hA91w9028177@candle.pha.pa.us |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
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| Lists: | pgsql-hackers |
Leon Oosterwijk wrote:
> All,
>
> I'm working on a school project that involves genetic algorithms. We thought
> it would be neat to parralelize the genetic algorithm in postgresql's query
> optimiser. We used pthreads and are able to spawn threads to deal with the
> query optimization, however on exit of the thread the postmaster blows up.
> Before we get into details is there any obvious reason postgres doesn't like
> to deal with threads?
Yes, the backend code is not thread-safe.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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