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Re: 8.4 optimization regression?

From: Grzegorz Jaśkiewicz <gryzman(at)gmail(dot)com>
To: Mark Kirkwood <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PGSQL Performance <pgsql-performance(at)postgresql(dot)org>
Subject: Re: 8.4 optimization regression?
Date: 2011-08-30 09:43:48
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performance
2011/8/29 Mark Kirkwood <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz>:

> I note from the commit message that the fix test case was from Grzegorz
> Jaskiewicz (antijoin against a small subset of a relation).  I was not able
> to find this in the archives - Grzegorz do you recall the actual test case?
> I thought it might be useful for me to spend some time studying both cases
> and seeing if I can come up with any tweaks that would let both your and my
> queries work well!

Sorry, I don't remember that particular example. If I complained about
it, it would  have been on this list or the general list.
I'll have a look by date.


In response to


pgsql-performance by date

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Subject: Summaries on SSD usage?
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Subject: Re: Query optimization help

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