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From: Sergei Kornilov <sk@zsrv.org>
To: Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>,
	"michael.paquier@gmail.com" <michael.paquier@gmail.com>
Cc: "x4mmm@yandex-team.ru" <x4mmm@yandex-team.ru>,
	"david@nlpgo.com" <david@nlpgo.com>,
	"pgsql-bugs@lists.postgresql.org" <pgsql-bugs@lists.postgresql.org>,
	"pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
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 <20180118.211449.240575561.horiguchi.kyotaro@lab.ntt.co.jp>
Subject: Re: Index-only scan returns incorrect results when using a composite
 GIST index with a gist_trgm_ops column.
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Hello
I tested this patch and think it can be commited to master. Is there a CF record? I can not find one.

Should we also make backport to older versions? I test on REL_10_STABLE - patch builds and works ok, but "make check" fails on new testcase with error:
>  CREATE INDEX ON t USING gist (a test_inet_ops, a inet_ops);
>+ ERROR:  missing support function 4 for attribute 1 of index "t_a_a1_idx"
and with different explain results.

regards, Sergei