Alexander Pivovarov created HIVE-5321:
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Summary: Join filters do not work correctly with outer joins again
Key: HIVE-5321
URL: https://issues.apache.org/jira/browse/HIVE-5321
Project: Hive
Issue Type: Bug
Components: Query Processor
Affects Versions: 0.11.0, 0.9.0
Reporter: Alexander Pivovarov
SELECT * FROM T1 LEFT OUTER JOIN T2 ON (T1.c1=T2.c2 AND T1.c1 < 10)
and SELECT * FROM T1 RIGHT OUTER JOIN T2 ON (T1.c1=T2.c2 AND T2.c1 < 10)
do not give correct results.
to reproduce:
hive> create table tt1 (c1 int);
hive> create table tt2 (c1 int);
$ vi tt1
1
2
3
4
$ vi tt2
1
2
8
9
$ hadoop fs -put tt1 /user/hive/warehouse/tt1/
$ hadoop fs -put tt2 /user/hive/warehouse/tt2/
wrong result:
hive> select * from tt1 left outer join tt2 on (tt1.c1 = tt2.c1 and tt1.c1 <=
2);
1 1
2 2
3 NULL
4 NULL
correct result:
select * from tt1 left outer join tt2 on (tt1.c1 = tt2.c1) where tt1.c1 <= 2;
1 1
2 2
alexp@t1:~/hive-0.11.0-bin$ head -1 RELEASE_NOTES.txt
Release Notes - Hive - Version 0.11.0
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