On Dec 14, 2008, at 6:55 AM, Tom Lane wrote:
The whole relabeling thing seems like a seriously silly idea.
I wouldn't say that it's silly. What I do say is that it makes no
sense
to imagine that it would be used at the same time as named parameters.
The entire point of something like XMLELEMENT is that it takes a
list of
undifferentiated parameters, which therefore do not need to have names
so far as the function is concerned.
Perhaps not, but I have to say, looking at Robert's JSON example:
SELECT json(r.foo AS foo, r.bar AS bar, r.baz AS baz, r.bletch AS
quux) FROM rel r;
I would be pretty confused. It looks exactly like the proposed syntax
for named parameters. So while syntactically they may never be used
together, there's a semantic mismatch, IMHO.
Best,
David
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