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From "Suhas Satish" <>
Subject Re: Review Request 27640: HIVE-8700 Replace ReduceSink to HashTableSink (or equi.) for small tables [Spark Branch]
Date Thu, 06 Nov 2014 23:43:22 GMT

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(Updated Nov. 6, 2014, 11:43 p.m.)

Review request for hive, Chao Sun, Jimmy Xiang, Szehon Ho, and Xuefu Zhang.

Repository: hive-git


This replaces ReduceSinks with HashTableSinks in smaller tables for a map-join. But the condition
check field to detect map-join is actually being set in CommonJoinResolver, which doesnt exist
yet. We need to decide where is the right place to populate this field. 

Diffs (updated)

  ql/src/java/org/apache/hadoop/hive/ql/exec/ f1c3564 
  ql/src/java/org/apache/hadoop/hive/ql/optimizer/spark/ 92600be




Suhas Satish

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