Re: Fix to not check included columns in ANALYZE on indexes

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: pgsql-hackers(at)lists(dot)postgresql(dot)org, Yugo Nagata <nagata(at)sraoss(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Fix to not check included columns in ANALYZE on indexes
Date: 2018-06-28 23:50:05
Message-ID: 25590.1530229805@sss.pgh.pa.us
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Andres Freund <andres(at)anarazel(dot)de> writes:
> On June 28, 2018 4:28:39 PM PDT, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> (In principle, CREATE STATISTICS might someday obsolete this use-case
>> for expression indexes, but it hasn't done so yet AFAIK.)

> You mean stats on them, or the feature entirely? If the latter, how?

No, just the collection-of-stats-on-an-expression part.

regards, tom lane

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