| From: | Manuel Sugawara <masm(at)fciencias(dot)unam(dot)mx> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | pgsql general <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Slow query in 8.2.0 |
| Date: | 2006-12-14 00:32:03 |
| Message-ID: | m3wt4vgvwc.fsf@conexa.fciencias.unam.mx |
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| Lists: | pgsql-general |
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
> 8.2 is a good bit more conservative than previous releases about
> optimizing views involving volatile functions, so I'm wondering whether
> that could have anything to do with it ...
Oh well, you are indeed right, I went through the whole view hierarchy
and replaced all volatile function calls (I used to use a trick
defining a function to avoid a join that used to perform better in
earlier versions) with explicit JOINs, also I relabeled some functions
that were indeed STABLE and now everything is working fine. I was
amazed that some of those views predates Postgres support of JOINs, I
guees we have been using Postgres for a very long time :-).
Just out of curiosity, why the change?
Regards,
Manuel.
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