Stephan Szabo <[EMAIL PROTECTED]> writes:
> I think something like:
> (CASE WHEN extract(dow from date) = 0 THEN 7 else extract(dow from date))

It's really not that hard:

        (extract(dow from date) + 6) % 7

You can rotate to any week-start day you like by substituting different
things for "6".

                        regards, tom lane

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