From: PG Bug reporting form <noreply@postgresql.org>
To: pgsql-bugs@lists.postgresql.org
Cc: exclusion@gmail.com
Subject: BUG #18835: spgist index fails to accept point with NaN
Date: Fri, 07 Mar 2025 18:00:01 +0000
Message-ID: <18835-deaf2add28625ed3@postgresql.org> (raw)
The following bug has been logged on the website:
Bug reference: 18835
Logged by: Alexander Lakhin
Email address: exclusion@gmail.com
PostgreSQL version: 17.4
Operating system: Ubuntu 24.04
Description:
The following script:
CREATE TABLE t(p point);
INSERT INTO t SELECT point(g, g) FROM generate_series(1, 1000) g;
INSERT INTO t VALUES ('(0,NaN)'::point);
CREATE INDEX spgist_idx ON t USING spgist(p);
triggers:
ERROR: XX000: getQuadrant: impossible case
LOCATION: getQuadrant, spgquadtreeproc.c:77
Reproduced starting from 8daeb5ddd.
This anomaly is discovered with SQLsmith.
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Subject: Re: BUG #18835: spgist index fails to accept point with NaN
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