[ https://issues.apache.org/jira/browse/HIVE-12356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15014706#comment-15014706 ]
Sergey Shelukhin commented on HIVE-12356: ----------------------------------------- Needed for 2.0? > Capture if a rule mutated the plan. > ----------------------------------- > > Key: HIVE-12356 > URL: https://issues.apache.org/jira/browse/HIVE-12356 > Project: Hive > Issue Type: Bug > Affects Versions: 1.2.0 > Reporter: Laljo John Pullokkaran > Assignee: Laljo John Pullokkaran > > Currently Hive Optimizer doesn't capture if a rule mutated the plan. > This info could be useful in: > 1. determining if a subsequent optimization rule needs to be run or not > (Ex if Constant propagation didn't mutate plan, then don't run subsequent > PPD) > 2. Explain can contain info about which optimizations are applied effectively > on the query. -- This message was sent by Atlassian JIRA (v6.3.4#6332)