From: Michael Paquier [mailto:michael.paqu...@gmail.com] > I am not sure that we would like to give up that easily the property that > we have now to clean up past temporary files only at postmaster startup > and only when not in recovery. If you implement that, there is a risk that > the backend you are starting is eating the connection slot and by consequence > its temporary schema and its set of temporary tables on which one may want > to look into after a crash.
postmaster deletes temporary relation files at startup by calling RemovePgTempFiles() regardless of whether it's in recovery. It doesn't call that function during auto restart after a crash when restart_after_crash is on. > > 2. Teach autovacuum to remove any leftover tables in a pg_temp_%d > > schema if the backend is active but in some other database (rather > > than only when the backend is not active at all). > > Yeah. Here we can do something. This does not sound much difficult to > me. I did that in my patch. Regards Takayuki Tsunakawa
