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Ashutosh Chauhan edited comment on HIVE-15227 at 11/30/16 9:33 PM: ------------------------------------------------------------------- We can use CALCITE-1495 for changes in this rule. _auto_sortmerge_join_2.q_ is a flaky test. It fails intermittently even locally. Its a poorly written test since it depends on memory of system. By the way, I also added the flag {{hive.enable.semijoin.conversion}} for the rule. Pushed to master. was (Author: ashutoshc): We can use CALCITE-1494 for changes in this rule. _auto_sortmerge_join_2.q_ is a flaky test. It fails intermittently even locally. Its a poorly written test since it depends on memory of system. By the way, I also added the flag {{hive.enable.semijoin.conversion}} for the rule. Pushed to master. > Optimize join + gby into semijoin > --------------------------------- > > Key: HIVE-15227 > URL: https://issues.apache.org/jira/browse/HIVE-15227 > Project: Hive > Issue Type: Bug > Components: Logical Optimizer > Reporter: Ashutosh Chauhan > Assignee: Ashutosh Chauhan > Fix For: 2.2.0 > > Attachments: HIVE-15227.2.patch, HIVE-15227.3.patch, > HIVE-15227.4.patch, HIVE-15227.patch > > > Calcite has a rule which can do this transformation. Lets take advantage of > this since Hive has native Left semi join operator. -- This message was sent by Atlassian JIRA (v6.3.4#6332)