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Re: Additional improvements to extended statistics - Mailing list pgsql-hackers

From Tomas Vondra
Subject Re: Additional improvements to extended statistics
Date
Msg-id 20200306001556.il6altnuqgjxp55z@development
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In response to Additional improvements to extended statistics  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
Responses Re: Additional improvements to extended statistics  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
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Hi,

Here is a rebased version of this patch series. I've polished the first
two parts a bit - estimation of OR clauses and (Var op Var) clauses, and
added a bunch of regression tests to exercise this code. It's not quite
there yet, but I think it's feasible to get this committed for PG13.

The last part (extended stats on expressions) is far from complete, and
it's not feasible to get it into PG13. There's too much missing stuff.

regards

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