"Thomas F. O'Connell" <tfo@xxxxxxxxxxxx> writes: > Unfortunately, this is a system where the interloper is superuser > (and, yes, changing this has been a TODO). But even so, I need help > understanding how one backend could access the temp table of another. You'd have to do it pretty explicitly: select * from pg_temp_NNN.foo ... but it's certainly possible. I wouldn't expect any application to try this sort of thing, but if someone was manually poking around on the box, they might have been tempted to do it. > Several temporary tables (some of which inherit from actual tables) > are constructed. Hmm ... a SELECT from one of the "actual tables" would then scan the temp tables too, no? Thinking about this, I seem to recall that we had agreed to make the planner ignore temp tables of other backends when expanding an inheritance list --- but I don't see anything in the code implementing that, so it evidently didn't get done yet. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings