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Comment: change default value of hive.auto.convert.join.use.nonstaged (HIVE-6749)

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hive.auto.convert.join.use.nonstaged
  • Default Value: truefalse
  • Added In: 0.13.0 with HIVE-6144 (default originally true, but changed to false with HIVE-6749 also in 0.13.0)

For conditional joins, if input stream from a small alias can be directly applied to the join operator without filtering or projection, the alias need not be pre-staged in the distributed cache via a mapred local task. Currently, this is not working with vectorization or Tez execution engine.

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