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Review request for hive, Brock Noland, Szehon Ho, and Xuefu Zhang. Repository: hive-git Description ------- HIVE-7810: Insert overwrite table query has strange behavior when set hive.optimize.union.remove=true [Spark Branch] Added a new spark configuration property for merging small files Diffs ----- common/src/java/org/apache/hadoop/hive/conf/HiveConf.java 31d45fa itests/src/test/resources/testconfiguration.properties de4a36e ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMapRedUtils.java d9c546a ql/src/test/results/clientpositive/spark/union_remove_10.q.out PRE-CREATION ql/src/test/results/clientpositive/spark/union_remove_16.q.out bacb52f ql/src/test/results/clientpositive/spark/union_remove_4.q.out a429f3e ql/src/test/results/clientpositive/spark/union_remove_5.q.out c2c7c08 ql/src/test/results/clientpositive/spark/union_remove_9.q.out PRE-CREATION Diff: https://reviews.apache.org/r/25003/diff/ Testing ------- Thanks, Na Yang