From: Tom Lane <tgl@sss.pgh.pa.us>
To: Ondřej Bouda <obouda@email.cz>
Cc: Alvaro Herrera <alvherre@2ndquadrant.com>
Cc: pgsql-hackers@lists.postgresql.org
Cc: pgsql-general@lists.postgresql.org
Subject: Re: backend crash on DELETE, reproducible locally
Date: Tue, 06 Nov 2018 16:03:35 -0500
Message-ID: <2432.1541538215@sss.pgh.pa.us> (raw)
In-Reply-To: <134c09b5-3eb0-bafd-2aeb-f383e1e21b8a@email.cz>
References: <20181106194553.dynhd2xuivo56ymd@alvherre.pgsql>
<33d144b9-5208-8d32-7e95-94ed4d2931b8@email.cz>
<450.1541535425@sss.pgh.pa.us>
<134c09b5-3eb0-bafd-2aeb-f383e1e21b8a@email.cz>
=?UTF-8?Q?Ond=c5=99ej_Bouda?= <obouda@email.cz> writes:
>>> Hm, what are the data types of those columns?
> scheduletemplate_id bigint NOT NULL,
> period_day smallint NOT NULL,
> timerange timerange NOT NULL,
OK, so here's a minimal reproducer:
drop table schedulecard;
create table schedulecard (
scheduletemplate_id bigint NOT NULL,
period_day smallint NOT NULL
);
CREATE INDEX schedulecard_overlap_idx
ON schedulecard USING gist
(scheduletemplate_id, (period_day::integer % 7));
insert into schedulecard values(12, 1);
update schedulecard set period_day = period_day + 7;
Interestingly, it doesn't crash if I change the index type to btree,
which I was not expecting because the crashing code seems pretty
independent of the index type.
Haven't traced further than that yet.
regards, tom lane
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To: pgsql-general@postgresql.org
Cc: tgl@sss.pgh.pa.us, obouda@email.cz, alvherre@2ndquadrant.com, pgsql-hackers@lists.postgresql.org, pgsql-general@lists.postgresql.org
Subject: Re: backend crash on DELETE, reproducible locally
In-Reply-To: <2432.1541538215@sss.pgh.pa.us>
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