Re: We broke the defense against accessing other sessions' temp tables

Jim Jones <jim.jones@uni-muenster.de> writes:
> I also noticed that it is possible to LOCK a temp table from another
> session (as superuser).

Sure.  Superusers bypass all SQL permissions checks.

> Doesn't it mean that one session can trivially DoS another session's
> private temp table?

Superusers can trivially DoS anybody anytime: lock their tables,
corrupt their data, whatever.  That's a feature not a bug.

            regards, tom lane