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https://issues.apache.org/jira/browse/HIVE-3381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13611109#comment-13611109
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Ashutosh Chauhan commented on HIVE-3381:
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[~vikram.dixit] I guess you had some test case. Can you check if thats already
covered in patch. If not, can you add that test case here? Also, would you like
to verify .q.out changes of patch to make sure they look good to you?
> Result of outer join is not valid
> ---------------------------------
>
> Key: HIVE-3381
> URL: https://issues.apache.org/jira/browse/HIVE-3381
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.10.0
> Reporter: Navis
> Assignee: Navis
> Priority: Critical
> Attachments: HIVE-3381.D5565.3.patch, HIVE-3381.D5565.4.patch,
> HIVE-3381.D5565.5.patch, HIVE-3381.D5565.6.patch
>
>
> Outer joins, especially full outer joins or outer join with filter on 'ON
> clause' is not showing proper results. For example, query in test join_1to1.q
> {code}
> SELECT * FROM join_1to1_1 a full outer join join_1to1_2 b on a.key1 = b.key1
> and a.value = 66 and b.value = 66 ORDER BY a.key1 ASC, a.key2 ASC, a.value
> ASC, b.key1 ASC, b.key2 ASC, b.value ASC;
> {code}
> results
> {code}
> NULL NULL NULL NULL NULL 66
> NULL NULL NULL NULL 10050 66
> NULL NULL NULL 10 10010 66
> NULL NULL NULL 30 10030 88
> NULL NULL NULL 35 10035 88
> NULL NULL NULL 40 10040 88
> NULL NULL NULL 40 10040 88
> NULL NULL NULL 50 10050 88
> NULL NULL NULL 50 10050 88
> NULL NULL NULL 50 10050 88
> NULL NULL NULL 70 10040 88
> NULL NULL NULL 70 10040 88
> NULL NULL NULL 70 10040 88
> NULL NULL NULL 70 10040 88
> NULL NULL 66 NULL NULL NULL
> NULL 10050 66 NULL NULL NULL
> 5 10005 66 5 10005 66
> 15 10015 66 NULL NULL NULL
> 20 10020 66 20 10020 66
> 25 10025 88 NULL NULL NULL
> 30 10030 66 NULL NULL NULL
> 35 10035 88 NULL NULL NULL
> 40 10040 66 NULL NULL NULL
> 40 10040 66 40 10040 66
> 40 10040 88 NULL NULL NULL
> 40 10040 88 NULL NULL NULL
> 50 10050 66 NULL NULL NULL
> 50 10050 66 50 10050 66
> 50 10050 66 50 10050 66
> 50 10050 88 NULL NULL NULL
> 50 10050 88 NULL NULL NULL
> 50 10050 88 NULL NULL NULL
> 50 10050 88 NULL NULL NULL
> 50 10050 88 NULL NULL NULL
> 50 10050 88 NULL NULL NULL
> 60 10040 66 60 10040 66
> 60 10040 66 60 10040 66
> 60 10040 66 60 10040 66
> 60 10040 66 60 10040 66
> 70 10040 66 NULL NULL NULL
> 70 10040 66 NULL NULL NULL
> 70 10040 66 NULL NULL NULL
> 70 10040 66 NULL NULL NULL
> 80 10040 88 NULL NULL NULL
> 80 10040 88 NULL NULL NULL
> 80 10040 88 NULL NULL NULL
> 80 10040 88 NULL NULL NULL
> {code}
> but it seemed not right. This should be
> {code}
> NULL NULL NULL NULL NULL 66
> NULL NULL NULL NULL 10050 66
> NULL NULL NULL 10 10010 66
> NULL NULL NULL 25 10025 66
> NULL NULL NULL 30 10030 88
> NULL NULL NULL 35 10035 88
> NULL NULL NULL 40 10040 88
> NULL NULL NULL 50 10050 88
> NULL NULL NULL 70 10040 88
> NULL NULL NULL 70 10040 88
> NULL NULL NULL 80 10040 66
> NULL NULL NULL 80 10040 66
> NULL NULL 66 NULL NULL NULL
> NULL 10050 66 NULL NULL NULL
> 5 10005 66 5 10005 66
> 15 10015 66 NULL NULL NULL
> 20 10020 66 20 10020 66
> 25 10025 88 NULL NULL NULL
> 30 10030 66 NULL NULL NULL
> 35 10035 88 NULL NULL NULL
> 40 10040 66 40 10040 66
> 40 10040 88 NULL NULL NULL
> 50 10050 66 50 10050 66
> 50 10050 66 50 10050 66
> 50 10050 88 NULL NULL NULL
> 50 10050 88 NULL NULL NULL
> 60 10040 66 60 10040 66
> 60 10040 66 60 10040 66
> 60 10040 66 60 10040 66
> 60 10040 66 60 10040 66
> 70 10040 66 NULL NULL NULL
> 70 10040 66 NULL NULL NULL
> 80 10040 88 NULL NULL NULL
> 80 10040 88 NULL NULL NULL
> {code}
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