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From: Tom Lane on 29 Jun 2010 19:06
Daniel Grace <dgrace(a)wingsnw.com> writes:
> I found some interesting discrepancies with the query planner when
> working with views (and presumably table subqueries) that contain
> windowing functions.

Yeah, there's next to no optimization for window functions ATM.
This will probably get better over time, but don't hold your breath ...

regards, tom lane

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