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Lefty Leverenz commented on HIVE-12325: --------------------------------------- Removing the TODOC2.0 label because *hive.map.groupby.sorted* and the removal of *hive.map.groupby.sorted.testmode* are now documented in the wiki: * [Configuration Properties -- hive.map.groupby.sorted | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.map.groupby.sorted] * [Configuration Properties -- hive.map.groupby.sorted.testmode | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.map.groupby.sorted.testmode] > Turn hive.map.groupby.sorted on by default > ------------------------------------------ > > Key: HIVE-12325 > URL: https://issues.apache.org/jira/browse/HIVE-12325 > Project: Hive > Issue Type: Improvement > Components: Logical Optimizer > Reporter: Ashutosh Chauhan > Assignee: Chetna Chaudhari > Fix For: 2.0.0 > > Attachments: HIVE-12325.1.patch > > > When applicable it can avoid shuffle phase altogether for group by, which > will be a performance win. -- This message was sent by Atlassian JIRA (v6.3.4#6332)