> I propose removing the tlist from function-call nodes. To handle field
> selection, we should instead invent a separate "FieldSelect" expression
> operator that is applied to the result of the function call, or perhaps
> someday other kinds of expressions that can return tuples. Aside from
> saving space, we'll be able to cleanly represent both the result type of
> the function (ie, the tuple datatype) and the type of the field (which
> will be the result of the FieldSelect node). Right now there's only one
> node field that represents the result type of the function call, so we
> can't remember the actual result type of the function call itself.
I totally agree. That structure is very confusing, and it is hard to
know what they mean.
-- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610)
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