Simon Riggs <si...@2ndquadrant.com> writes:
> Sounds very similar to the solution that you just removed from the hash
> join code for performance reasons. Flushing memory when we overflow
> sounds like an artifact from the time when tuplestore split from
> tuplesort. Can't we keep the appropriate rows in memory and scroll
> through them?
We're not doing a fundamental redesign of the window function support
right now.
regards, tom lane
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