Re: Bogus ANALYZE results for an otherwise-unique column with many nulls

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk>
Cc: pgsql-hackers(at)postgresql(dot)org, Andreas Joseph Krogh <andreas(at)visena(dot)com>
Subject: Re: Bogus ANALYZE results for an otherwise-unique column with many nulls
Date: 2016-08-05 20:48:34
Message-ID: 25440.1470430114@sss.pgh.pa.us
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Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk> writes:
> Objection withdrawn.

OK, thanks. What shall we do about Andreas' request to back-patch this?
I'm personally willing to do it, but there is the old bugaboo of "maybe
it will destabilize a plan that someone is happy with".

regards, tom lane

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