> > adding an "anyelement2" pseudotype ... The context was a
> > compatibility SQL function to support Oracle's DECODE function.
> The reason it's not in there already is we didn't seem to have quite
> enough use-case to justify it.  Do you have more?

No.  Even this case, for me, is more an expedient than a necessity. I
could just rewrite my Oracle code to use CASE, but I've a lot of code to
convert, and the transformation is a bit error prone.  I'm also looking
at a scripted code edit to rewrite the Oracle stuff, and comparing this
to the cost a PG compatibility function.

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