From: PG Bug reporting form <noreply@postgresql.org>
To: pgsql-bugs@lists.postgresql.org
Cc: jordanthelewis@gmail.com
Subject: BUG #17542: tsquery returns incorrect results with nested, conjuncted followed-by operators
Date: Sat, 09 Jul 2022 01:35:42 +0000
Message-ID: <17542-69860f66186a43e4@postgresql.org> (raw)
The following bug has been logged on the website:
Bug reference: 17542
Logged by: Jordan Lewis
Email address: jordanthelewis@gmail.com
PostgreSQL version: 14.3
Operating system: Linux
Description:
Consider the following query:
jordan=> select '((a <2> c) & (b <-> c)) <-> d'::tsquery @@ 'a:1 b:2 c:3
d:4';
?column?
----------
f
(1 row)
I think this should return "true", because both of the expressions on the
left-hand-side of the outer <-> operator of the tsquery do in fact precede
the "d" term in the tsvector.
Here is output that shows this:
jordan=> select '((a <2> c)) <-> d'::tsquery @@ 'a:1 b:2 c:3 d:4';
?column?
----------
t
(1 row)
jordan=> select '((b <-> c)) <-> d'::tsquery @@ 'a:1 b:2 c:3 d:4';
?column?
----------
t
(1 row)
I think things go wrong in the query executor because the two LHS clauses
have different widths.
Do you agree that this is incorrect output?
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Cc: noreply@postgresql.org, pgsql-bugs@lists.postgresql.org, jordanthelewis@gmail.com
Subject: Re: BUG #17542: tsquery returns incorrect results with nested, conjuncted followed-by operators
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