"Alex Turner" <armtuk(at)gmail(dot)com> writes:
> ... I found what was going on in that bit and fixed it so
> it's not crashing anymore, I'm just worried about how on earth that
> could have affected other back end processes that were querying
> unrelated databases.
You do know that a crash in any backend prompts the postmaster to
restart the whole database cluster? I've forgotten the start of this
thread, but what you say here sounds like expected behavior.
regards, tom lane