Youngkyong Ko created TAJO-1793:
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Summary: result row count unmatched for UNION ALL
Key: TAJO-1793
URL: https://issues.apache.org/jira/browse/TAJO-1793
Project: Tajo
Issue Type: Bug
Affects Versions: 0.11.0
Environment: single node on Macbook
Reporter: Youngkyong Ko
Priority: Minor
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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