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Re: sequence query performance issues
- From: Richard Huxton <dev(at)archonet(dot)com>
- To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
- Cc: Peter Koczan <pjkoczan(at)gmail(dot)com>, pgsql-performance <pgsql-performance(at)postgresql(dot)org>
- Subject: Re: sequence query performance issues
- Date: Fri, 28 Sep 2007 15:43:41 +0100
Tom Lane wrote:
Richard Huxton <dev(at)archonet(dot)com> writes:Hmm - why is it doing that?I'm betting that the OP's people.uid column is not an integer. Existing PG releases can't use hashed subplans for cross-data-type comparisons (8.3 will be a bit smarter).
Looked like an int2 to me (width=2, max value ~ 32k) -- Richard Huxton Archonet Ltd
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- From: Peter Koczan
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- From: Richard Huxton
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- From: Tom Lane
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