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Hive, mail # dev - Hive common join Vs. JoinLineage


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Hive common join Vs. JoinLineage
Mahsa Mofidpoor 2012-07-08, 18:34
Hello,

As far as I know, a join operation can be converted to a common join at the
physical optimization stage, if the correspondent variable is set to true .
If not, join will be performed by JoinLineage, am I right? What is exactly
the difference between these two approaches?

I appreciate your help in advance.
Mahsa