From: | Mark Kirkwood <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz> |
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To: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: 8.4 optimization regression? |
Date: | 2011-08-31 05:11:56 |
Message-ID: | 4E5DC29C.1000700@catalyst.net.nz |
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Lists: | pgsql-performance |
On 30/08/11 21:43, Grzegorz Jaśkiewicz wrote:
> 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.
>
Thanks - however I think I have managed to make up a good test case that
shows the particular commit working. More on that to come!
Cheers
Mark
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