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Lefty Leverenz edited comment on HIVE-12290 at 11/1/15 5:18 AM: ---------------------------------------------------------------- [~mmccline], an extra file snuck into the commit: HiveConf.java.orig (not in patch 6). was (Author: le...@hortonworks.com): [~mmccline], an extra file snuck into the commit: hiveconf.java.orig (not in patch 6). > Native Vector ReduceSink > ------------------------ > > Key: HIVE-12290 > URL: https://issues.apache.org/jira/browse/HIVE-12290 > Project: Hive > Issue Type: Improvement > Components: Hive > Reporter: Matt McCline > Assignee: Matt McCline > Priority: Critical > Labels: TODOC2.0 > Fix For: 2.0.0 > > Attachments: HIVE-12290.01.patch, HIVE-12290.02.patch, > HIVE-12290.03.patch, HIVE-12290.04.patch, HIVE-12290.05.patch, > HIVE-12290.06.patch > > > Currently, VectorReduceSinkOperator is a pass-thru to ReduceSinkOperator, so > we incur object inspector costs. > Native vectorization will not use object inspectors and allocate memory up > front that will be reused for each batch. -- This message was sent by Atlassian JIRA (v6.3.4#6332)