[ https://issues.apache.org/jira/browse/HIVE-8667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14190791#comment-14190791 ]
Sergey Shelukhin commented on HIVE-8667: ---------------------------------------- It doesn't work in all cases according to the query. > CBO: optimize_nullscan - some TableScans for nullscans appeared after CBO > ------------------------------------------------------------------------- > > Key: HIVE-8667 > URL: https://issues.apache.org/jira/browse/HIVE-8667 > Project: Hive > Issue Type: Sub-task > Components: CBO > Reporter: Sergey Shelukhin > Assignee: Gunther Hagleitner > Fix For: 0.15.0 > > > Looks like some rewriting by CBO prevents nullscans from being optimized. -- This message was sent by Atlassian JIRA (v6.3.4#6332)