Mark Dilger <pgsql(at)markdilger(dot)com> writes:
> If we are talking about inserting the function definition into the
> query as a subquery and then letting the parser treat it as a
> subquery, then I see no reason to use either the existing function or
> view subsystems. It sounds more like we are discussing a macro
> language.
Which is pretty much what a SQL function is already. I don't see a need
to invent a separate concept. To the extent that macros have different
semantics than functions (eg, multiple evaluation of arguments) the
differences are generally not improvements IMHO ...
regards, tom lane