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Kirill Smelkov
mariadb
Commits
5d44b2f3
Commit
5d44b2f3
authored
Jun 16, 2009
by
Martin Hansson
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3cc3aa7d
f2448c93
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3 changed files
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99 additions
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1 deletion
+99
-1
mysql-test/r/group_min_max.result
mysql-test/r/group_min_max.result
+58
-0
mysql-test/t/group_min_max.test
mysql-test/t/group_min_max.test
+40
-0
sql/opt_range.cc
sql/opt_range.cc
+1
-1
No files found.
mysql-test/r/group_min_max.result
View file @
5d44b2f3
...
...
@@ -2502,3 +2502,61 @@ a MAX(b)
2 1
DROP TABLE t;
End of 5.0 tests
CREATE TABLE t1 ( a INT, b INT, c INT, KEY bc(b, c) )
PARTITION BY KEY (a, b) PARTITIONS 3
;
INSERT INTO t1 VALUES
(17, 1, -8),
(3, 1, -7),
(23, 1, -6),
(22, 1, -5),
(11, 1, -4),
(21, 1, -3),
(19, 1, -2),
(30, 1, -1),
(20, 1, 1),
(16, 1, 2),
(18, 1, 3),
(9, 1, 4),
(15, 1, 5),
(28, 1, 6),
(29, 1, 7),
(25, 1, 8),
(10, 1, 9),
(13, 1, 10),
(27, 1, 11),
(24, 1, 12),
(12, 1, 13),
(26, 1, 14),
(14, 1, 15)
;
SELECT b, c FROM t1 WHERE b = 1 GROUP BY b, c;
b c
1 -8
1 -7
1 -6
1 -5
1 -4
1 -3
1 -2
1 -1
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 10
1 11
1 12
1 13
1 14
1 15
EXPLAIN
SELECT b, c FROM t1 WHERE b = 1 GROUP BY b, c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range bc bc 10 NULL 7 Using where; Using index for group-by
DROP TABLE t1;
mysql-test/t/group_min_max.test
View file @
5d44b2f3
...
...
@@ -1018,3 +1018,43 @@ DROP TABLE t;
--
echo
End
of
5.0
tests
#
# Bug#44821: select distinct on partitioned table returns wrong results
#
CREATE
TABLE
t1
(
a
INT
,
b
INT
,
c
INT
,
KEY
bc
(
b
,
c
)
)
PARTITION
BY
KEY
(
a
,
b
)
PARTITIONS
3
;
INSERT
INTO
t1
VALUES
(
17
,
1
,
-
8
),
(
3
,
1
,
-
7
),
(
23
,
1
,
-
6
),
(
22
,
1
,
-
5
),
(
11
,
1
,
-
4
),
(
21
,
1
,
-
3
),
(
19
,
1
,
-
2
),
(
30
,
1
,
-
1
),
(
20
,
1
,
1
),
(
16
,
1
,
2
),
(
18
,
1
,
3
),
(
9
,
1
,
4
),
(
15
,
1
,
5
),
(
28
,
1
,
6
),
(
29
,
1
,
7
),
(
25
,
1
,
8
),
(
10
,
1
,
9
),
(
13
,
1
,
10
),
(
27
,
1
,
11
),
(
24
,
1
,
12
),
(
12
,
1
,
13
),
(
26
,
1
,
14
),
(
14
,
1
,
15
)
;
SELECT
b
,
c
FROM
t1
WHERE
b
=
1
GROUP
BY
b
,
c
;
EXPLAIN
SELECT
b
,
c
FROM
t1
WHERE
b
=
1
GROUP
BY
b
,
c
;
DROP
TABLE
t1
;
sql/opt_range.cc
View file @
5d44b2f3
...
...
@@ -8556,7 +8556,7 @@ int QUICK_RANGE_SELECT::get_next_prefix(uint prefix_length,
result
=
file
->
read_range_first
(
last_range
->
min_keypart_map
?
&
start_key
:
0
,
last_range
->
max_keypart_map
?
&
end_key
:
0
,
test
(
last_range
->
flag
&
EQ_RANGE
),
sorted
);
TRUE
);
if
(
last_range
->
flag
==
(
UNIQUE_RANGE
|
EQ_RANGE
))
last_range
=
0
;
// Stop searching
...
...
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