Re: Additional improvements to extended statistics

From: Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>
To: Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Additional improvements to extended statistics
Date: 2020-03-15 00:08:09
Message-ID: 20200315000809.ruwpx7ktnpnzly7c@development
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On Sat, Mar 14, 2020 at 05:56:10PM +0100, Tomas Vondra wrote:
> ...
>Attached is a patch series rebased on top of the current master, after
>committing the ScalarArrayOpExpr enhancements. I've updated the OR patch
>to get rid of the code duplication, and barring objections I'll get it
>committed shortly together with the two parts improving test coverage.

I've pushed the two patches improving test coverage for functional
dependencies and MCV lists, which seems mostly non-controversial. I'll
wait a bit more with the two patches actually changing behavior (rebased
version attached, to keep cputube happy).


Tomas Vondra
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Attachment Content-Type Size
0001-Improve-estimation-of-OR-clauses-with-extend-2020315.patch text/plain 19.9 KB
0002-Support-clauses-of-the-form-Var-op-Var-2020315.patch text/plain 17.4 KB

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