2011/12/3 Tomas Vondra <t...@fuzzy.cz>:
> psql: FATAL:  cannot read pg_class without having selected a database
> I've found this happens because the extension defines a client auth hook
> that reads pg_stat_activity. The really interesting thing is that this
> happens only when I start several backends 'at the same time' right
> after the cluster is started. From that time, everything works just fine.

I'm surprised this ever works.  To read pg_stat_activity, you need a
relcache entry for it.  And how will you build one without selecting a

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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