[TAJO-1793] result row count unmatched for UNION ALL

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.11.0
• Fix Version/s: 0.12.0, 0.11.2
• Component/s: QueryMaster

Environment

single node on Macbook

• Assignee: JaeHwa Jung
• Reporter: Youngkyong Ko
• Created: 21/Aug/15 06:30
• Updated: 08/Mar/16 08:54
• Resolved: 08/Mar/16 07:55

Description

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)