Horton

Re: multivariate statistics (v19)

Tomas Vondra <tomas.vondra@2ndquadrant.com>

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From: Tomas Vondra <tomas.vondra@2ndquadrant.com>
To: Dilip Kumar <dilipbalaut@gmail.com>
Cc: Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>, Dean Rasheed <dean.a.rasheed@gmail.com>, Heikki Linnakangas <hlinnaka@iki.fi>, Michael Paquier <michael.paquier@gmail.com>, Robert Haas <robertmhaas@gmail.com>, Tatsuo Ishii <ishii@postgresql.org>, David Steele <david@pgmasters.net>, Tom Lane <tgl@sss.pgh.pa.us>, Álvaro Herrera <alvherre@2ndquadrant.com>, Petr Jelinek <petr@2ndquadrant.com>, Jeff Janes <jeff.janes@gmail.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2017-01-04T02:35:15Z
Lists: pgsql-hackers

Attachments

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.

regards

-- 
Tomas Vondra                  http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

  1. Collect and use multi-column dependency stats

  2. Implement SortSupport for macaddr data type

  3. Implement multivariate n-distinct coefficients

  4. Generate fmgr prototypes automatically