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Gunther Hagleitner commented on HIVE-18875: ------------------------------------------- If I read this right, then you're new check in ConvertJoinMapjoin basically makes sure that there is no projection in between gby and join that would alter bucketing or sorting. That is exactly what op traits are for - why can't we use that in this case? > Enable SMB Join by default in Tez > --------------------------------- > > Key: HIVE-18875 > URL: https://issues.apache.org/jira/browse/HIVE-18875 > Project: Hive > Issue Type: Task > Reporter: Deepak Jaiswal > Assignee: Deepak Jaiswal > Priority: Major > Attachments: HIVE-18875.1.patch, HIVE-18875.2.patch, > HIVE-18875.3.patch, HIVE-18875.4.patch, HIVE-18875.5.patch, HIVE-18875.6.patch > > -- This message was sent by Atlassian JIRA (v7.6.3#76005)