[ https://issues.apache.org/jira/browse/HIVE-3343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13430757#comment-13430757 ]
Gang Tim Liu commented on HIVE-3343: ------------------------------------ If we remove "b.k1 < 5", it will generate right result. "explain extended" shows Select Operator has different order of columns (_col0, _col3, _col4, _col2) from filter operator's (_col0,_col2,_col3,_col4). Here is snapshot: Reduce Operator Tree: Group By Operator ... outputColumnNames: _col0, _col1 Select Operator ... outputColumnNames: _col0, _col3, _col4, _col2 Filter Operator ... predicate: expr: (_col2 < 5.0) type: boolean File Output Operator ... table: ... properties: columns _col0,_col2,_col3,_col4 columns.types string,double,double,double escape.delim \ ... > Hive: Query misaligned result for Group by followed by Join with filter and > skip a group-by result > -------------------------------------------------------------------------------------------------- > > Key: HIVE-3343 > URL: https://issues.apache.org/jira/browse/HIVE-3343 > Project: Hive > Issue Type: Bug > Components: Query Processor > Reporter: Gang Tim Liu > Assignee: Gang Tim Liu > > This simple Hive query would generate wrong result: > select a.key, b.k2, b.k3 > from src a > join ( > select key, > min(key) as k, > min(key)+1 as k1, > min(key)+2 as k2, > min(key)+3 as k3 > from src > group by key > ) b > on a.key=b.key and b.k1 < 5; > 0 3.0 1.0 > 0 3.0 1.0 > 0 3.0 1.0 > 2 5.0 3.0 > The right result is: > 0 2.0 3.0 > 0 2.0 3.0 > 0 2.0 3.0 > 2 4.0 5.0 -- 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