Horton

Re: [HACKERS] PATCH: multivariate histograms and MCV lists

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: Tomas Vondra <tomas.vondra@2ndquadrant.com>
Cc: Dean Rasheed <dean.a.rasheed@gmail.com>, David Rowley <david.rowley@2ndquadrant.com>, Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>, Alvaro Herrera <alvherre@2ndquadrant.com>, Andres Freund <andres@anarazel.de>, Thomas Munro <thomas.munro@enterprisedb.com>, Bruce Momjian <bruce@momjian.us>, Mark Dilger <hornschnorter@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2019-04-09T02:29:18Z
Lists: pgsql-hackers 
On Sat, Mar 30, 2019 at 09:13:01PM +0100, Tomas Vondra wrote:
> Hmmm, what's the right status in the CF app when a part of a patch was
> committed and the rest should be moved to the next CF? Committed, Moved
> to next CF, or something else?

This stuff has been around for nine commit fests, and you have been
able to finish the basic work.  So I think that committed is most
appropriate so as you can start later on with a new concept, new patch
sets, perhaps a new thread, and surely a new CF entry.
--
Michael

Commits

  1. Convert pre-existing stats_ext tests to new style

  2. Add support for multivariate MCV lists

  3. Improve ANALYZE's strategy for finding MCVs.

  4. Clone extended stats in CREATE TABLE (LIKE INCLUDING ALL)

  5. Try again to fix accumulation of parallel worker instrumentation.

  6. Adjust psql \d query to avoid use of @> operator.

  7. Message style fixes

  8. Add security checks to selectivity estimation functions