Robert Haas <robertmh...@gmail.com> writes:
> I am not really in favor of half-fixing this. If we can't
> conveniently wait until a dropped role is completely out of the
> system, then I don't see a lot of point in trying to do it in the
> limited cases where we can. If LEFT JOIN is the way to go, then,
> blech, but, so be it.
I concur. Let's put the left join(s) into those views and call it
good.
BTW, I think we would need the left joins even if we had interlocking
in DROP, just to protect ourselves against race conditions. Remember
that what pg_stat_activity shows is a snapshot, which might be more or
less out of date compared to the catalog contents.
regards, tom lane
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