Laljo John Pullokkaran created HIVE-10695:
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Summary: Hive Query Produces Wrong Result: PPD
Key: HIVE-10695
URL: https://issues.apache.org/jira/browse/HIVE-10695
Project: Hive
Issue Type: Bug
Reporter: Laljo John Pullokkaran
Assignee: Laljo John Pullokkaran
Priority: Critical
Fix For: 0.14.1
Following query produces wrong result:
select * from t1 s left outer join (select key, value from t1) f on
s.key=f.key and s.value=f.value left outer join (select key, value from t1)
c on s.key=c.key where f.key is null;
This is due to PPD gets confused between qualified col name & non qualified.
In many places in code column info doesn't include table alias which leads to
PPD problem.
This is fixed in trunk as part of HIVE-9327
https://issues.apache.org/jira/browse/HIVE-9327
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