[ https://issues.apache.org/jira/browse/HIVE-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Navis reopened HIVE-2339: ------------------------- It seemed to be fixed by HIVE-1989. It was true for join cases but for group-by cases, mapping information of keys are still missing. > Preserve RS key columns in columnExprMap after CP optimization, which might > be useful to other optimizers > --------------------------------------------------------------------------------------------------------- > > Key: HIVE-2339 > URL: https://issues.apache.org/jira/browse/HIVE-2339 > Project: Hive > Issue Type: Sub-task > Components: Query Processor > Reporter: Navis > Priority: Trivial > Fix For: 0.9.0 > > Attachments: HIVE-2339.1.patch > > > In ColumnPrunerProcFactory#pruneReduceSinkOperator, only VALUE parts are > retained from columnExprMap. Doesn't anyone want KEY parts to retained, > either? In my case, it was very useful for backtracking column names and > removing RS in *-RS-*-RS-GBY case. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira