Jesus Camacho Rodriguez created HIVE-17276:

             Summary: Check max shuffle size when converting to dynamically 
partitioned hash join
                 Key: HIVE-17276
             Project: Hive
          Issue Type: Bug
          Components: Physical Optimizer
    Affects Versions: 3.0.0
            Reporter: Jesus Camacho Rodriguez
            Assignee: Jesus Camacho Rodriguez

Currently we only check that the max number of entries in the hashmap for a 
MapJoin surpasses a certain threshold to decide whether to execute a 
dynamically partitioned hash join.

We would like to factor the size of the large input that we will shuffle for 
the dynamically partitioned hash join into the cost model too.

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