Christopher Kings-Lynne <[EMAIL PROTECTED]> writes:
> Can someone explain to me how:
> (a, b) < (1, 2)
> is different to
> a < 1 and b < 2

Right at the moment our code interprets it that way, but this behavior
is wrong per spec.  It should be an ordered column-by-column comparison,
so that the equivalent simple expression is

        (a < 1) OR (a = 1 AND b < 2)

                        regards, tom lane

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