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Re: [HACKERS] PATCH: multivariate histograms and MCV lists - Mailing list pgsql-hackers

From Tomas Vondra
Subject Re: [HACKERS] PATCH: multivariate histograms and MCV lists
Date
Msg-id 19f76496-dcf3-ccea-dd82-26fbed57b8f5@2ndquadrant.com
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In response to Re: [HACKERS] PATCH: multivariate histograms and MCV lists  (Dean Rasheed <dean.a.rasheed@gmail.com>)
Responses Re: [HACKERS] PATCH: multivariate histograms and MCV lists
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Hi,

attached is an updated version of the patch, addressing most of the
issues raised in the recent reviews. There are two main exceptions:

1) I haven't reworked the regression tests to use a function to check
cardinality estimates and making them faster.

2) Review handling of bitmap in statext_is_compatible_clause_internal
when processing AND/OR/NOT clauses.

I plan to look into those items next, but I don't want block review of
other parts of the patch unnecessarily.


regards

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