From: PG Bug reporting form <noreply@postgresql.org>
To: pgsql-bugs@lists.postgresql.org
Cc: sully@msully.net
Subject: BUG #17479: "plan should not reference subplan's variable" when calling `grouping` on result of subquery
Date: Tue, 10 May 2022 01:02:35 +0000
Message-ID: <17479-6260deceaf0ad304@postgresql.org> (raw)
The following bug has been logged on the website:
Bug reference: 17479
Logged by: Michael J. Sullivan
Email address: sully@msully.net
PostgreSQL version: 14.2
Operating system: Linux
Description:
The following query produces "plan should not reference subplan's
variable"
create table Card (id uuid);
SELECT
-- This line causes "variable not found in subplan target list"
-- grouping(res.cnt)
-- This line causes "plan should not reference subplan's variable"
(SELECT grouping(res.cnt))
FROM Card
CROSS JOIN LATERAL
(SELECT
(SELECT Card.id) AS cnt
) AS res
GROUP BY
res.cnt
As the comment says, a slight change instead errors with "variable not found
in subplan target list".
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To: pgsql-bugs@postgresql.org
Cc: noreply@postgresql.org, pgsql-bugs@lists.postgresql.org, sully@msully.net
Subject: Re: BUG #17479: "plan should not reference subplan's variable" when calling `grouping` on result of subquery
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