Neil Conway <[EMAIL PROTECTED]> writes:
> This works, but it seems overly verbose. It occurred to me that we could
> easily add a new PL/PgSQL statement that evaluates a set-returning
> expression and adds *all* the resulting rows to the function's result
> set. For example:

I think we've got something isomorphic to that in the patch queue
already --- take a look at Pavel's "table function" patch.  It's in
need of cleanup but I think it will make it in.

                        regards, tom lane

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TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not

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