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https://issues.apache.org/jira/browse/HIVE-3343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13430761#comment-13430761
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Gang Tim Liu commented on HIVE-3343:
------------------------------------
root-cause is ColumnPrunerFilterProc doesn't perserve order of prunned column
list (filterOpPrunedColLists). It causes
outputColumnNames: _col0, _col3, _col4, _col2
It should be outputColumnNames: _col0, _col2, _col3, _col4
> 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
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