[ https://issues.apache.org/jira/browse/HIVE-4880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13718027#comment-13718027 ]
Phabricator commented on HIVE-4880: ----------------------------------- hagleitn has commented on the revision "HIVE-4880 [jira] Rearrange explain order of stages simpler". INLINE COMMENTS ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/StageIDRearranger.java:13 Hard to say. Both have advantages: The current way follows branches of the tree in sequence, which is nice. The other way would be exactly what the execution looks like which is more consistent. I do know that customers find the explain plan hard to understand in general - not sure which way would make it a little easier. Should we ask some more folks? REVISION DETAIL https://reviews.facebook.net/D11733 BRANCH HIVE-4880 ARCANIST PROJECT hive To: JIRA, hagleitn, navis > Rearrange explain order of stages simpler > ----------------------------------------- > > Key: HIVE-4880 > URL: https://issues.apache.org/jira/browse/HIVE-4880 > Project: Hive > Issue Type: Improvement > Components: Diagnosability > Reporter: Navis > Assignee: Navis > Priority: Trivial > Attachments: HIVE-4880.D11733.1.patch > > > Current explain order of stages is not best form to read (and to debug) > {noformat} > Before: > STAGE DEPENDENCIES: > Stage-1 is a root stage > Stage-7 depends on stages: Stage-1 , consists of Stage-4, Stage-3, Stage-5 > Stage-4 > Stage-0 depends on stages: Stage-4, Stage-3, Stage-6 > Stage-9 depends on stages: Stage-0 > Stage-2 depends on stages: Stage-9 > Stage-3 > Stage-5 > Stage-6 depends on stages: Stage-5 > After: > STAGE DEPENDENCIES: > Stage-1 is a root stage > Stage-2 depends on stages: Stage-1 , consists of Stage-3, Stage-4, Stage-5 > Stage-3 > Stage-4 > Stage-5 > Stage-6 depends on stages: Stage-5 > Stage-7 depends on stages: Stage-3, Stage-4, Stage-6 > Stage-8 depends on stages: Stage-7 > Stage-9 depends on stages: Stage-8 > {noformat} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira