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