Re: multivariate statistics (v19)

From: Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>
To: Dilip Kumar <dilipbalaut(at)gmail(dot)com>
Cc: Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Tatsuo Ishii <ishii(at)postgresql(dot)org>, David Steele <david(at)pgmasters(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Álvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Petr Jelinek <petr(at)2ndquadrant(dot)com>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: multivariate statistics (v19)
Date: 2017-01-04 02:35:15
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On 01/03/2017 05:22 PM, Tomas Vondra wrote:
> On 01/03/2017 02:42 PM, Dilip Kumar wrote:
>> I think it should be easily reproducible, in case it's not I can send
>> call stack or core dump.
> Thanks for the report. It was trivial to reproduce and it turned out to
> be a fairly simple bug. Will send a new version of the patch soon.

Attached is v22 of the patch series, rebased to current master and
fixing the reported bug. I haven't made any other changes - the issues
reported by Petr are mostly minor, so I've decided to wait a bit more
for (hopefully) other reviews.


Tomas Vondra
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Attachment Content-Type Size
0001-teach-pull_-varno-varattno-_walker-about-Restric-v22.patch binary/octet-stream 1.4 KB
0002-PATCH-shared-infrastructure-and-ndistinct-coeffi-v22.patch binary/octet-stream 138.6 KB
0003-PATCH-functional-dependencies-only-the-ANALYZE-p-v22.patch binary/octet-stream 66.7 KB
0004-PATCH-selectivity-estimation-using-functional-de-v22.patch binary/octet-stream 46.5 KB
0005-PATCH-multivariate-MCV-lists-v22.patch binary/octet-stream 122.3 KB
0006-PATCH-multivariate-histograms-v22.patch binary/octet-stream 149.8 KB
0007-WIP-use-ndistinct-for-selectivity-estimation-in--v22.patch binary/octet-stream 14.6 KB
0008-WIP-allow-using-multiple-statistics-in-clauselis-v22.patch binary/octet-stream 9.3 KB
0009-WIP-psql-tab-completion-basics-v22.patch binary/octet-stream 3.1 KB

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