Re: benchmarking the query planner

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Vladimir Sitnikov" <sitnikov(dot)vladimir(at)gmail(dot)com>
Cc: "Robert Haas" <robertmhaas(at)gmail(dot)com>, "Gregory Stark" <stark(at)enterprisedb(dot)com>, "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>, "jd(at)commandprompt(dot)com" <jd(at)commandprompt(dot)com>, "Josh Berkus" <josh(at)agliodbs(dot)com>, "Greg Smith" <gsmith(at)gregsmith(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: benchmarking the query planner
Date: 2008-12-11 22:27:00
Message-ID: 12251.1229034420@sss.pgh.pa.us
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"Vladimir Sitnikov" <sitnikov(dot)vladimir(at)gmail(dot)com> writes:
>> I think that would likely be redundant with the histogram.
>>
> I am afraid I do not get you.

AFAICS what you're proposing *is* a histogram, just awkwardly described.
What is the specific difference between what you are talking about and
what scalarineqsel already implements?

regards, tom lane

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