Re: [HACKERS] optimizer pruning problem

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Roberto Cornacchia <rcorna(at)tin(dot)it>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: [HACKERS] optimizer pruning problem
Date: 1999-08-31 13:36:32
Message-ID: 15164.936106592@sss.pgh.pa.us
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Roberto Cornacchia <rcorna(at)tin(dot)it> writes:
> Just a month ago, we posted a bug-report on the BUGS mailing list
> concerning the optimizer plan enumeration in the 6.5.0 release.
> We haven't seen any comment about it and the problem is still unfixed in
> the last release, so we wish to have a feedback from someone of the
> developers.

I believe I have taken care of this problem as part of the optimizer
overhaul I am doing for 6.6. I was not planning to back-patch any of
this work for 6.5.2, however --- too many changes, not yet enough
testing. If you pull down a current snapshot you should be able to
see what I have done with add_pathlist.

regards, tom lane

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