>>>>> "Tom" == Tom Lane <t...@sss.pgh.pa.us> writes:

 Tom> Regardless of that, though ... what is the reasoning for
 Tom> inventing pg_get_aggregate_arguments() rather than just making
 Tom> pg_get_function_arguments() do the right thing?

pg_get_function_arguments()'s interface assumes that the caller is
providing the enclosing parens. Changing it would have meant returning
a result like 'float8) WITHIN GROUP (float8' which I reckoned would
have too much chance of breaking existing callers.

Andrew (irc:RhodiumToad)

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