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Hudson commented on HIVE-2901: ------------------------------ Integrated in Hive-trunk-h0.21 #1357 (See [https://builds.apache.org/job/Hive-trunk-h0.21/1357/]) HIVE-2901 Hive union with NULL constant and string in same column returns all null (Navis via namit) (Revision 1310179) Result = SUCCESS namit : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1310179 Files : * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/FunctionRegistry.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java * /hive/trunk/ql/src/test/queries/clientpositive/union_null.q * /hive/trunk/ql/src/test/results/clientpositive/union_null.q.out > Hive union with NULL constant and string in same column returns all null > ------------------------------------------------------------------------ > > Key: HIVE-2901 > URL: https://issues.apache.org/jira/browse/HIVE-2901 > Project: Hive > Issue Type: Bug > Reporter: Kevin Wilfong > Assignee: Navis > Priority: Critical > Attachments: HIVE-2901.D2541.1.patch, HIVE-2901.D2541.2.patch, > HIVE-2901.D2541.3.patch > > > select x from (select value as x from src union all select NULL as x from > src)a; > This query produces all nulls, where value is a string column. > Notably, > select x from (select key as x from src union all select NULL as x from src)a; > where key is a string, but can be cast to a double, the query returns correct > results. -- 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