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changes.mady.by.user Rui Li

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changes.mady.by.user Lefty Leverenz

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Comment: add a link from hive.mapjoin.optimized.hashtable to Spark section

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Whether Hive should use a memory-optimized hash table for MapJoin. Only works on Tez and Spark, because memory-optimized hash table cannot be serialized. (Spark is supported starting from Hive 1.3.0, with HIVE-11180.)

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