>
> What I'd be inclined to think about is making
> check_generic_type_consistency and related functions allow the
> arguments matched to ANYELEMENT to be of different actual types
> so long as select_common_type could determine a unique type to
> coerce them all to. It'd take some refactoring (notably, because
> select_common_type wants to throw error on failure, and because
> there'd have to be a way to pass back the type that was selected
> for use later).
+1
it's same like current implementation coalesce, least, greatest
functions, thats works well. And with this change and with variatic
functions we can move these functions from parser.
Regards
Pavel Stehule
>
> regards, tom lane
>
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