Re: BUG #15640: FATAL: XX000: cannot read pg_class without having selected a database

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: m(dot)kiianov(at)rtk-dc(dot)ru, pgsql-bugs(at)lists(dot)postgresql(dot)org, Andres Freund <andres(at)anarazel(dot)de>
Subject: Re: BUG #15640: FATAL: XX000: cannot read pg_class without having selected a database
Date: 2019-02-18 14:45:55
Message-ID: 20190218144555.GA4579@alvherre.pgsql
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On 2019-Feb-18, PG Bug reporting form wrote:

> 2019-02-18 05:30:36 GMT [40378]: [2-1] db=,user= FATAL: XX000: cannot read pg_class without having selected a database
> 2019-02-18 05:30:36 GMT [40378]: [3-1] db=,user= LOCATION: ScanPgRelation, relcache.c:314

Hmm, I wonder if this is a bug introduced in 6a46aba1cd6d (in 9.6.10)
that only hits autovacuum launcher after a relcache init removal at just
the wrong time, or something like that?

--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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