Greg Stark <[EMAIL PROTECTED]> writes:
> This is sort of interesting. It seems the time required for the optimizer to
> handle a query doubles with every layer of subquery it has to dig through.

Seems to be due to some brain fade in pull_up_subqueries --- the thing
was constructing truly monstrous rangetables due to poorly thought out
recursive modification of the parse tree :-(.  Patch applied in CVS tip.

                        regards, tom lane

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