Re: More stable query plans via more predictable column statistics

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>
Cc: "Shulgin, Oleksandr" <oleksandr(dot)shulgin(at)zalando(dot)de>, David Steele <david(at)pgmasters(dot)net>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: More stable query plans via more predictable column statistics
Date: 2016-03-09 15:02:08
Message-ID: 20160309150208.GA963365@alvherre.pgsql
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Tomas Vondra wrote:

> FWIW while looking at the code I noticed that we skip wide varlena
> values but not cstrings. Seems a bit suspicious.

Uh, can you actually have columns of cstring type? I don't think you
can ...

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

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