I am thinking adding a temporary keyword to functions would make a lot more sense.
Well, right now that's just syntactic sugar, so I think the only real benefit might be visibility (though, really we should be marketing the idea that you can create almost *any* object in pg_temp!).
What would be a lot more interesting is if creating a temp function didn't involve writing an entry to the catalog (something being discussed for temp tables right now).
Oracle has interesting temporary function defined inside CTE
Pavel
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