Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> 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?
I think/hope that the launcher isn't connected to sinval, either.
regards, tom lane