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https://issues.apache.org/jira/browse/TAJO-1793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15152015#comment-15152015
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ASF GitHub Bot commented on TAJO-1793:
--------------------------------------
GitHub user blrunner opened a pull request:
https://github.com/apache/tajo/pull/965
TAJO-1793: result row count unmatched for UNION ALL
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/blrunner/tajo TAJO-1793
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/tajo/pull/965.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #965
----
commit 48fce759d2ab4e322244d48b8cc8c56c80e78446
Author: JaeHwa Jung <[email protected]>
Date: 2016-02-18T09:30:31Z
TAJO-1793: result row count unmatched for UNION ALL
----
> result row count unmatched for UNION ALL
> -----------------------------------------
>
> Key: TAJO-1793
> URL: https://issues.apache.org/jira/browse/TAJO-1793
> Project: Tajo
> Issue Type: Bug
> Components: QueryMaster
> Affects Versions: 0.11.0
> Environment: single node on Macbook
> Reporter: Youngkyong Ko
> Assignee: Jaehwa Jung
> Priority: Critical
> Fix For: 0.12.0
>
>
> In UNION ALL, result record count is presented wrong.
> default> select * from test1;
> c1
> -------------------------------
> 1
> 2
> (2 rows, 0.027 sec, 4 B selected)
> default> select * from test2;
> c1
> -------------------------------
> 2
> 3
> 4
> (3 rows, 0.011 sec, 6 B selected)
> default> select c1 from test1 union all select c1 from test2;
> Progress: 100%, response time: 0.458 sec
> c1
> -------------------------------
> 1
> 2
> 2
> 3
> 4
> (2 rows, 0.458 sec, 10 B selected)
> ==> SHOULD BE "5 rows"
> BTW, it is OK in case of UNION .
> default> select c1 from test1 union select c1 from test2;
> Progress: 100%, response time: 0.241 sec
> c1
> -------------------------------
> 2
> 1
> 3
> 4
> (4 rows, 0.241 sec, 8 B selected)
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