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List:       postgresql-general
Subject:    Re: [HACKERS] [WIP] Better partial index-only scans
From:       Tom Lane <tgl () sss ! pgh ! pa ! us>
Date:       2014-06-30 16:57:40
Message-ID: 11981.1404147460 () sss ! pgh ! pa ! us
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Abhijit Menon-Sen <ams@2ndQuadrant.com> writes:
> I don't think it's fair to mark this as returned with feedback without a
> more detailed review (I think of returned with feedback as providing a
> concrete direction to follow). I've set it back to "needs review".

> Does anyone else want to look at this patch?

I offered a few comments.  I think it might also be useful to try to
quantify the worst-case performance cost for this, which would arise
for a single-table query on a table with lots of indexes.  Don't
have time for that myself though.

			regards, tom lane


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