On 22.04.20 21:10, Christian Ramseyer wrote: > > I see that in pgjdbc there are additional options for targetServerType = > any, primary, secondary, preferSlave and preferSecondary[2]. However > this seems to be java-specific and not implemented in libpq? Is there a > way to get this behaviour in PHP/Psycopg/Perl DBI? > Never mind, after RTFM'ing to the very end of https://www.postgresql.org/docs/current/libpq-connect.html I have discovered target_session_attrs=read-write|any which seems to do exactly what I want. Cheers Christian