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From Qing Yan <qing...@gmail.com>
Subject Combine() optimization
Date Thu, 26 Feb 2009 13:57:16 GMT
Is there any way/plan for Hive to take advantage of M/R's combine()
phrase? There can be either rules embedded in in the query optimizer  or
hints passed by user...
GROUP BY should benefit from this alot..

Any comment?

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