[ https://issues.apache.org/jira/browse/HIVE-308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zheng Shao updated HIVE-308: ---------------------------- Attachment: HIVE-308.1.patch Fixing the bug (the second case) and added a test case. > UNION ALL should create different destination directories for different > operands > -------------------------------------------------------------------------------- > > Key: HIVE-308 > URL: https://issues.apache.org/jira/browse/HIVE-308 > Project: Hadoop Hive > Issue Type: Bug > Components: Query Processor > Affects Versions: 0.3.0 > Reporter: Zheng Shao > Priority: Blocker > Attachments: HIVE-308.1.patch > > > The following query hangs: > {code} > select * from (select 1 from zshao_lazy union all select 2 from zshao_lazy) a; > {code} > The following query produce wrong results: (one map-reduce job > overwrite/cannot overwrite the result of the other) > {code} > select * from (select 1 as id from zshao_lazy cluster by id union all select > 2 as id from zshao_meta) a; > {code} > The reason of both is that the destination directory of the file sink > operator conflicts with each other. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.