Re: SQL Function Slowness, 8.3.0

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: "Gavin M(dot) Roy" <gmr(at)myyearbook(dot)com>
Cc: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-performance(at)postgresql(dot)org
Subject: Re: SQL Function Slowness, 8.3.0
Date: 2008-04-16 18:58:08
Message-ID: 20080416115808.60e2d984@commandprompt.com
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On Wed, 16 Apr 2008 14:44:40 -0400
"Gavin M. Roy" <gmr(at)myyearbook(dot)com> wrote:

> After detailed examination of pg_stat_user_indexes usage, it's clear
> that the functions don't use the same indexes. I've casted
> everything to match the indexes in the SQL function, to no success.
> Any suggestions on next steps? Maybe for 8.4 we could find a way to
> explain analyze function internals ;-)
> Gavin

To quote Tom in the appropriate bottom posting method:

> >
> > Without a specific example this discussion is pretty content-free,
> > but in general SQL functions face the same hazards of bad
> > parameterized plans as plpgsql functions do.
> >
> > regards, tom lane
> >

Sincerely,

Joshua D. Drake

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