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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Richard Guo <guofenglinux@gmail.com>
cc: exclusion@gmail.com, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #19037: Planner fails on estimating array length with "no
 relation entry" error
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Comments: In-reply-to Richard Guo <guofenglinux@gmail.com>
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Richard Guo <guofenglinux@gmail.com> writes:
> Here is the patch that passes root as NULL to cost_qual_eval() in
> cost_subplan(), along with some commentary about why.

v2 LGTM.  I did think of a way to make the test case a little
less busy-looking:

select (1 = any(array_agg(f1))) = any (select false) from int4_tbl;

but that's just cosmetic.

			regards, tom lane