From: PG Bug reporting form <noreply@postgresql.org>
To: pgsql-bugs@lists.postgresql.org
Cc: jiangshan.liu@tju.edu.cn
Subject: BUG #18403: PL/pgSQL is reporting unexpected errors when processing DECLARE blocks with <<label>>
Date: Wed, 20 Mar 2024 19:35:22 +0000
Message-ID: <18403-7069fc75f5255783@postgresql.org> (raw)
The following bug has been logged on the website:
Bug reference: 18403
Logged by: Jiangshan Liu
Email address: jiangshan.liu@tju.edu.cn
PostgreSQL version: 15.2
Operating system: Ubuntu
Description:
Hi, I think PL/pgSQL is reporting unexpected errors when dealing with
DECLARE blocks paired with <<label>>.
I have approximated the program to a clean situation. When I execute this
program, the PL/pgSQL engine does not report errors to me:
DO $$
DECLARE
DECLARE
var1 INT = 1;
BEGIN
RAISE NOTICE '%', var1;
END;
$$;
But when I try to add <<label>> before the second DECLARE block, the
PL/pgSQL engine prompts me with this error message:
DO $$
DECLARE
<<label>>
DECLARE
var1 INT = 1;
BEGIN
RAISE NOTICE '%', var1;
END;
$$;
> ERROR: block label must be placed before DECLARE, not after
LINE 3: <<label>>
^
It seems to think that I am adding <<label>> after the first DECLARE block,
which is not my intention. I do add the <<label>> before the second DECLARE
block. Why is this program being reported as an error? Is this a bug in
PL/pgSQL's handling of <<label>>?
Looking forward and thank you for your response to this question.
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Subject: Re: BUG #18403: PL/pgSQL is reporting unexpected errors when processing DECLARE blocks with <<label>>
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