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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Ryan Kelly <rpkelly22@gmail.com>
cc: pgsql-bugs@lists.postgresql.org
Subject: Re: ERROR: XX000: variable not found in subplan target list
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Comments: In-reply-to Ryan Kelly <rpkelly22@gmail.com>
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Ryan Kelly <rpkelly22@gmail.com> writes:
> After upgrading to 11.15 we have queries failing as follows:
> (postgres@[local]:5432 02:52:54) [capitalrx_test_adjudication_master]>
> EXPLAIN SELECT count(*) FROM adjudication.claims;
> ERROR:  XX000: variable not found in subplan target list

It's impossible to comment on this with this amount of detail.
Please try to extract a self-contained test case.

https://wiki.postgresql.org/wiki/Guide_to_reporting_problems

			regards, tom lane