Ivan Chan created TEIID-2802: -------------------------------- Summary: HIVE2: got Invalid table alias or column reference when running UNION ALL query on HIVE2 Key: TEIID-2802 URL: https://issues.jboss.org/browse/TEIID-2802 Project: Teiid Issue Type: Bug Components: Query Engine Affects Versions: 8.6 Environment: TEIID with HIVE2 Reporter: Ivan Chan Assignee: Steven Hawkins If I tried to combine 2 tables from a same HIVE2 data source using UNION ALL, I got "Invalid table alias or column reference" error. Query that I submitted to Teiid originally: select "name" from (Select * from hive2.opportunities_small UNION ALL Select * from hive2.opportunities) "query" group by "name" order by "name" Query that Teiid generated: SELECT v_0.c_0 FROM (SELECT c_0 FROM (SELECT g_1.name AS c_0 FROM opportunities_small g_1 UNION ALL SELECT g_0.name AS c_0 FROM opportunities g_0) X__) v_0 GROUP BY v_0.c_0 ORDER BY v_0.c_0 Error: Invalid table alias or column reference 'v_0': (possible column names are: c_0) -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira