[ https://issues.apache.org/jira/browse/HIVE-790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ning Zhang updated HIVE-790: ---------------------------- Attachment: Hive_790_0.4.0.patch patch Hive_790_0.4.0.patch is the patch for branch 0.4.0. > race condition related to ScriptOperator + UnionOperator > -------------------------------------------------------- > > Key: HIVE-790 > URL: https://issues.apache.org/jira/browse/HIVE-790 > Project: Hadoop Hive > Issue Type: Bug > Reporter: Zheng Shao > Assignee: Ning Zhang > Attachments: Hive-790.patch, Hive-790_2.patch, Hive-790_3.patch, > Hive-790_4.patch, Hive_790_0.4.0.patch > > > ScriptOperator uses a second thread to output the rows to the children > operators. In a corner case which contains a union, 2 threads might be > outputting data into the same operator hierarchy and caused race conditions. > {code} > CREATE TABLE tablea (cola STRING); > SELECT * > FROM ( > SELECT TRANSFORM(cola) > USING 'cat' > AS cola > FROM tablea > UNION ALL > SELECT cola as cola > FROM tablea > ) a; > {code} -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.