Thanks for the reply.
Even if such a function existed, it would almost certainly not do what
you want in this query. Per SQL spec, the SELECT target list is
logically supposed to be evaluated before the ORDER BY and LIMIT steps, which means you'd get numbers associated with the physical ordering of the rows not their some_col ordering.
Shucks. I wanted to return a set with an ordered iterator determined by the ORDER BY. Could that be done?
regards, tom lane
Thanks again.
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