Even in Pascal a procedure and a function are the same except one
returns a result, the other does not.
And it C++ everything is a function, you just set the return type to
void for a proc.
But AFAICS this is a distinction made by people (like in Pascal) but is
not a distinction at all. As far as the system is concerned they are
identical. Everything you can do in one of those "procedures" you can
do in PostgreSQL now, so what is the problem?
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