| From: | "scott(dot)marlowe" <scott(dot)marlowe(at)ihs(dot)com> |
|---|---|
| To: | Jie Liang <jie(at)stbernard(dot)com> |
| Cc: | <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: [ADMIN] 7.4.2 out of memory |
| Date: | 2004-04-28 19:57:21 |
| Message-ID: | Pine.LNX.4.33.0404281356130.8346-100000@css120.ihs.com |
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| Thread: | |
| Lists: | pgsql-admin pgsql-performance |
On Wed, 28 Apr 2004, Jie Liang wrote:
> All,
> After I upgraded postgres from 7.3.4 to 7.4.2, one of my program got following error:
> DRROR: out of memory
> DETAIL: Fail on request of size 92.
>
> any idea??
> does memory management have big difference between 7.3.4 and 7.4.2???
> this program using a chunk of share memory and a lot of temp tables.
More than likely this is a hash aggregate problem (or can they spill to
disk in 7.4.2 yet? I don't think they can, but maybe we should ask Tom.
Try setting this before running the query and see what happens:
set enable_hashagg = false;
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