[ https://issues.apache.org/jira/browse/HIVE-2592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13156537#comment-13156537 ]
Phabricator commented on HIVE-2592: ----------------------------------- jonchang has commented on the revision "HIVE-2592 [jira] ConstantOI doesn't always propagate to UDAF". Maybe someone with some more depth on the history here can chime in, but it seems to me that if the TI/OI split was intended to solve the problem, it's a pretty broken solution. REVISION DETAIL https://reviews.facebook.net/D513 > ConstantOI doesn't always propagate to UDAF > ------------------------------------------- > > Key: HIVE-2592 > URL: https://issues.apache.org/jira/browse/HIVE-2592 > Project: Hive > Issue Type: Bug > Reporter: Jonathan Chang > Assignee: Jonathan Chang > Attachments: HIVE-2592.D513.1.patch, HIVE-2592.D513.2.patch > > > Depending on the query plan, a UDAF may not actually get a constant OI. E.g., > set hive.map.aggr=false; > SELECT percentile_approx(cast(substr(src.value,5) AS double), 0.5) FROM src; -- 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