Re: PATCH: multivariate histograms and MCV lists

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

From: Tomas Vondra <tomas.vondra@2ndquadrant.com>
To: Adrien Nayrat <adrien.nayrat@dalibo.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2017-09-12T21:06:18Z
Lists: pgsql-hackers

Attachments

Attached is an updated version of the patch, dealing with fallout of
821fb8cdbf700a8aadbe12d5b46ca4e61be5a8a8 which touched the SGML
documentation for CREATE STATISTICS.

regards

On 09/07/2017 10:07 PM, Tomas Vondra wrote:
> Hi,
> 
> Attached is an updated version of the patch, fixing the issues reported
> by Adrien Nayrat, and also a bunch of issues pointed out by valgrind.
> 
> regards
> 

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

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