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Kirill Smelkov
mariadb
Commits
b76f3912
Commit
b76f3912
authored
Sep 13, 2010
by
Mattias Jonsson
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daa6d1f4
a41cef53
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465 additions
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316 deletions
+465
-316
mysql-test/r/partition.result
mysql-test/r/partition.result
+26
-1
mysql-test/r/partition_hash.result
mysql-test/r/partition_hash.result
+6
-6
mysql-test/r/partition_innodb.result
mysql-test/r/partition_innodb.result
+9
-9
mysql-test/r/partition_pruning.result
mysql-test/r/partition_pruning.result
+266
-242
mysql-test/r/partition_range.result
mysql-test/r/partition_range.result
+6
-6
mysql-test/suite/parts/r/partition_alter3_innodb.result
mysql-test/suite/parts/r/partition_alter3_innodb.result
+18
-18
mysql-test/suite/parts/r/partition_alter3_myisam.result
mysql-test/suite/parts/r/partition_alter3_myisam.result
+18
-18
mysql-test/t/partition.test
mysql-test/t/partition.test
+27
-0
mysql-test/t/partition_pruning.test
mysql-test/t/partition_pruning.test
+24
-0
sql/ha_partition.cc
sql/ha_partition.cc
+52
-15
sql/ha_partition.h
sql/ha_partition.h
+4
-0
sql/sql_select.cc
sql/sql_select.cc
+9
-1
No files found.
mysql-test/r/partition.result
View file @
b76f3912
drop table if exists t1, t2;
#
# Bug#55458: Partitioned MyISAM table gets crashed by multi-table update
#
CREATE TABLE t1 (
`id` int NOT NULL,
`user_num` int DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM CHARSET=latin1;
INSERT INTO t1 VALUES (1,8601);
INSERT INTO t1 VALUES (2,8601);
INSERT INTO t1 VALUES (3,8601);
INSERT INTO t1 VALUES (4,8601);
CREATE TABLE t2 (
`id` int(11) NOT NULL,
`user_num` int DEFAULT NULL,
`name` varchar(64) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM CHARSET=latin1
PARTITION BY HASH (id)
PARTITIONS 2;
INSERT INTO t2 VALUES (1,8601,'John');
INSERT INTO t2 VALUES (2,8601,'JS');
INSERT INTO t2 VALUES (3,8601,'John S');
UPDATE t1, t2 SET t2.name = 'John Smith' WHERE t1.user_num = t2.user_num;
DROP TABLE t1, t2;
CREATE TABLE t1 (a INT, b INT)
PARTITION BY LIST (a)
SUBPARTITION BY HASH (b)
...
...
@@ -1382,7 +1407,7 @@ NULL
2
explain partitions select * from t1 where a is null or a < 0 or a > 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pn,p2 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t1 pn,p2 ALL NULL NULL NULL NULL
2
Using where
drop table t1;
CREATE TABLE t1 (id INT NOT NULL PRIMARY KEY, name VARCHAR(20))
ENGINE=MyISAM DEFAULT CHARSET=latin1
...
...
mysql-test/r/partition_hash.result
View file @
b76f3912
...
...
@@ -69,25 +69,25 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
explain partitions select * from t1 where a is null or (a >= 5 and a <= 7);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p2,p3 ALL NULL NULL NULL NULL
9
Using where
1 SIMPLE t1 p0,p2,p3 ALL NULL NULL NULL NULL
7
Using where
explain partitions select * from t1 where a is null;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
9
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
3
Using where
explain partitions select * from t1 where a is not null;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
explain partitions select * from t1 where a >= 1 and a < 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL
9
Using where
1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL
5
Using where
explain partitions select * from t1 where a >= 3 and a <= 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1,p2 ALL NULL NULL NULL NULL
9
Using where
1 SIMPLE t1 p1,p2 ALL NULL NULL NULL NULL
4
Using where
explain partitions select * from t1 where a > 2 and a < 4;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1 ALL NULL NULL NULL NULL
9
Using where
1 SIMPLE t1 p1 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a > 3 and a <= 6;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2,p3 ALL NULL NULL NULL NULL
9
Using where
1 SIMPLE t1 p2,p3 ALL NULL NULL NULL NULL
4
Using where
explain partitions select * from t1 where a > 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
...
...
mysql-test/r/partition_innodb.result
View file @
b76f3912
...
...
@@ -22,31 +22,31 @@ insert INTO t1 VALUES (110);
ERROR HY000: Table has no partition for value 110
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 90;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL
5
Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 90;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL
5
Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 90;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL
5
Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 89;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p90 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p90 ALL NULL NULL NULL NULL
3
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 89;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p90 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p90 ALL NULL NULL NULL NULL
3
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 89;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 100;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 100;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 100;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL
0
Using where
DROP TABLE t1;
#
# Bug#50104: Partitioned table with just 1 partion works with fk
...
...
mysql-test/r/partition_pruning.result
View file @
b76f3912
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
#
# Bug#53806: Wrong estimates for range query in partitioned MyISAM table
# Bug#46754: 'rows' field doesn't reflect partition pruning
#
CREATE TABLE t1 (a INT PRIMARY KEY)
PARTITION BY RANGE (a) (
PARTITION p0 VALUES LESS THAN (1),
PARTITION p1 VALUES LESS THAN (2),
PARTITION p2 VALUES LESS THAN (3),
PARTITION p3 VALUES LESS THAN (4),
PARTITION p4 VALUES LESS THAN (5),
PARTITION p5 VALUES LESS THAN (6),
PARTITION max VALUES LESS THAN MAXVALUE);
INSERT INTO t1 VALUES (-1),(0),(1),(2),(3),(4),(5),(6),(7),(8);
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
# # # # # # # # # 3 #
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 7;
id select_type table partitions type possible_keys key key_len ref rows Extra
# # # # # # # # # 9 #
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
# # # # # # # # # 3 #
DROP TABLE t1;
#
# Bug#49742: Partition Pruning not working correctly for RANGE
#
CREATE TABLE t1 (a INT PRIMARY KEY)
...
...
@@ -89,7 +113,7 @@ a
1
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1 index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p0,p1 index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
SELECT * FROM t1 WHERE a <= 2;
a
-1
...
...
@@ -98,7 +122,7 @@ a
2
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 2;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2 index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p0,p1,p2 index PRIMARY PRIMARY 4 NULL
4
Using where; Using index
SELECT * FROM t1 WHERE a <= 3;
a
-1
...
...
@@ -108,7 +132,7 @@ a
3
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2,p3 index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p0,p1,p2,p3 index PRIMARY PRIMARY 4 NULL
5
Using where; Using index
SELECT * FROM t1 WHERE a <= 4;
a
-1
...
...
@@ -119,7 +143,7 @@ a
4
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 4;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2,p3,p4 index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p0,p1,p2,p3,p4 index PRIMARY PRIMARY 4 NULL
6
Using where; Using index
SELECT * FROM t1 WHERE a <= 5;
a
-1
...
...
@@ -131,7 +155,7 @@ a
5
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2,p3,p4,p5 index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p0,p1,p2,p3,p4,p5 index PRIMARY PRIMARY 4 NULL
7
Using where; Using index
SELECT * FROM t1 WHERE a <= 6;
a
-1
...
...
@@ -213,7 +237,7 @@ a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1,p2,p3,p4,p5,max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p1,p2,p3,p4,p5,max index PRIMARY PRIMARY 4 NULL
8
Using where; Using index
SELECT * FROM t1 WHERE a >= 2;
a
2
...
...
@@ -225,7 +249,7 @@ a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 2;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2,p3,p4,p5,max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p2,p3,p4,p5,max index PRIMARY PRIMARY 4 NULL
7
Using where; Using index
SELECT * FROM t1 WHERE a >= 3;
a
3
...
...
@@ -236,7 +260,7 @@ a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p3,p4,p5,max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p3,p4,p5,max index PRIMARY PRIMARY 4 NULL
6
Using where; Using index
SELECT * FROM t1 WHERE a >= 4;
a
4
...
...
@@ -246,7 +270,7 @@ a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 4;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4,p5,max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p4,p5,max index PRIMARY PRIMARY 4 NULL
5
Using where; Using index
SELECT * FROM t1 WHERE a >= 5;
a
5
...
...
@@ -255,7 +279,7 @@ a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p5,max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p5,max index PRIMARY PRIMARY 4 NULL
4
Using where; Using index
SELECT * FROM t1 WHERE a >= 6;
a
6
...
...
@@ -263,14 +287,14 @@ a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 6;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
SELECT * FROM t1 WHERE a >= 7;
a
7
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 7;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
SELECT * FROM t1 WHERE a > 1;
a
2
...
...
@@ -282,7 +306,7 @@ a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2,p3,p4,p5,max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p2,p3,p4,p5,max index PRIMARY PRIMARY 4 NULL
7
Using where; Using index
SELECT * FROM t1 WHERE a > 2;
a
3
...
...
@@ -293,7 +317,7 @@ a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 2;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p3,p4,p5,max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p3,p4,p5,max index PRIMARY PRIMARY 4 NULL
6
Using where; Using index
SELECT * FROM t1 WHERE a > 3;
a
4
...
...
@@ -303,7 +327,7 @@ a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4,p5,max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p4,p5,max index PRIMARY PRIMARY 4 NULL
5
Using where; Using index
SELECT * FROM t1 WHERE a > 4;
a
5
...
...
@@ -312,7 +336,7 @@ a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 4;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p5,max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 p5,max index PRIMARY PRIMARY 4 NULL
4
Using where; Using index
SELECT * FROM t1 WHERE a > 5;
a
6
...
...
@@ -320,20 +344,20 @@ a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
SELECT * FROM t1 WHERE a > 6;
a
7
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 6;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
SELECT * FROM t1 WHERE a > 7;
a
8
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 7;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
10
Using where; Using index
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
DROP TABLE t1;
CREATE TABLE t1 (a INT PRIMARY KEY)
PARTITION BY RANGE (a) (
...
...
@@ -408,7 +432,7 @@ a
1
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1 index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 p0,p1 index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
SELECT * FROM t1 WHERE a <= 2;
a
-1
...
...
@@ -417,7 +441,7 @@ a
2
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 2;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2 index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 p0,p1,p2 index PRIMARY PRIMARY 4 NULL
4
Using where; Using index
SELECT * FROM t1 WHERE a <= 3;
a
-1
...
...
@@ -427,7 +451,7 @@ a
3
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2,p3 index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 p0,p1,p2,p3 index PRIMARY PRIMARY 4 NULL
5
Using where; Using index
SELECT * FROM t1 WHERE a <= 4;
a
-1
...
...
@@ -438,7 +462,7 @@ a
4
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 4;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2,p3,p4 index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 p0,p1,p2,p3,p4 index PRIMARY PRIMARY 4 NULL
6
Using where; Using index
SELECT * FROM t1 WHERE a <= 5;
a
-1
...
...
@@ -511,7 +535,7 @@ a
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1,p2,p3,p4,max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 p1,p2,p3,p4,max index PRIMARY PRIMARY 4 NULL
7
Using where; Using index
SELECT * FROM t1 WHERE a >= 2;
a
2
...
...
@@ -522,7 +546,7 @@ a
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 2;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2,p3,p4,max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 p2,p3,p4,max index PRIMARY PRIMARY 4 NULL
6
Using where; Using index
SELECT * FROM t1 WHERE a >= 3;
a
3
...
...
@@ -532,7 +556,7 @@ a
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p3,p4,max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 p3,p4,max index PRIMARY PRIMARY 4 NULL
5
Using where; Using index
SELECT * FROM t1 WHERE a >= 4;
a
4
...
...
@@ -541,7 +565,7 @@ a
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 4;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4,max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 p4,max index PRIMARY PRIMARY 4 NULL
4
Using where; Using index
SELECT * FROM t1 WHERE a >= 5;
a
5
...
...
@@ -549,14 +573,14 @@ a
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
SELECT * FROM t1 WHERE a >= 6;
a
6
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 6;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
SELECT * FROM t1 WHERE a > 1;
a
2
...
...
@@ -567,7 +591,7 @@ a
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2,p3,p4,max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 p2,p3,p4,max index PRIMARY PRIMARY 4 NULL
6
Using where; Using index
SELECT * FROM t1 WHERE a > 2;
a
3
...
...
@@ -577,7 +601,7 @@ a
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 2;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p3,p4,max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 p3,p4,max index PRIMARY PRIMARY 4 NULL
5
Using where; Using index
SELECT * FROM t1 WHERE a > 3;
a
4
...
...
@@ -586,7 +610,7 @@ a
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4,max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 p4,max index PRIMARY PRIMARY 4 NULL
4
Using where; Using index
SELECT * FROM t1 WHERE a > 4;
a
5
...
...
@@ -594,20 +618,20 @@ a
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 4;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
SELECT * FROM t1 WHERE a > 5;
a
6
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
SELECT * FROM t1 WHERE a > 6;
a
7
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 6;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
9
Using where; Using index
1 SIMPLE t1 max index PRIMARY PRIMARY 4 NULL
3
Using where; Using index
DROP TABLE t1;
# test of RANGE and index
CREATE TABLE t1 (a DATE, KEY(a))
...
...
@@ -757,10 +781,10 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01,p2001-01-01 range a a 4 NULL 5 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p2001-01-01 index a a 4 NULL
7
Using where; Using index
1 SIMPLE t1 pNULL,p2001-01-01 index a a 4 NULL
4
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p2001-01-01 index a a 4 NULL
7
Using where; Using index
1 SIMPLE t1 pNULL,p2001-01-01 index a a 4 NULL
4
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL ref a a 4 const 1 Using where; Using index
...
...
@@ -880,34 +904,34 @@ a
1001-01-01
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p2001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p2001-01-01 ALL NULL NULL NULL NULL
4
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1001-01-01 system NULL NULL NULL NULL 1
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < '1001-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= '1001-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= '1001-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > '1001-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = '1001-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL ALL NULL NULL NULL NULL
3
Using where
# Disabling warnings for the invalid date
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
...
...
@@ -917,25 +941,25 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01,p2001-01-01 ALL NULL NULL NULL NULL 7 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p2001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p2001-01-01 ALL NULL NULL NULL NULL
4
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p2001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p2001-01-01 ALL NULL NULL NULL NULL
4
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL ALL NULL NULL NULL NULL
3
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a BETWEEN '0000-00-00' AND '1002-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01,p2001-01-01 ALL NULL NULL NULL NULL 7 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a BETWEEN '0000-00-00' AND '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a BETWEEN '0001-01-02' AND '1002-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a BETWEEN '0001-01-01' AND '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 ALL NULL NULL NULL NULL
6
Using where
DROP TABLE t1;
# test of LIST and index
CREATE TABLE t1 (a DATE, KEY(a))
...
...
@@ -1086,10 +1110,10 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 range a a 4 NULL 5 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2001-01-01,pNULL index a a 4 NULL
7
Using where; Using index
1 SIMPLE t1 p2001-01-01,pNULL index a a 4 NULL
4
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2001-01-01,pNULL index a a 4 NULL
7
Using where; Using index
1 SIMPLE t1 p2001-01-01,pNULL index a a 4 NULL
4
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL ref a a 4 const 1 Using where; Using index
...
...
@@ -1101,7 +1125,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 range a a 4 NULL 4 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a BETWEEN '0001-01-02' AND '1002-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p1001-01-01 index a a 4 NULL
7
Using where; Using index
1 SIMPLE t1 pNULL,p1001-01-01 index a a 4 NULL
4
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a BETWEEN '0001-01-01' AND '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p1001-01-01 range a a 4 NULL 3 Using where; Using index
...
...
@@ -1209,62 +1233,62 @@ a
1001-01-01
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2001-01-01,pNULL,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p2001-01-01,pNULL,p1001-01-01 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2001-01-01,pNULL ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p2001-01-01,pNULL ALL NULL NULL NULL NULL
4
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1001-01-01 system NULL NULL NULL NULL 1
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < '1001-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= '1001-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= '1001-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2001-01-01,pNULL,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p2001-01-01,pNULL,p1001-01-01 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > '1001-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2001-01-01,pNULL,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p2001-01-01,pNULL,p1001-01-01 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = '1001-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL ALL NULL NULL NULL NULL
3
Using where
# Disabling warnings for the invalid date
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2001-01-01,pNULL ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p2001-01-01,pNULL ALL NULL NULL NULL NULL
4
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2001-01-01,pNULL ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p2001-01-01,pNULL ALL NULL NULL NULL NULL
4
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = '1999-02-31';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL ALL NULL NULL NULL NULL
3
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a BETWEEN '0000-00-00' AND '1002-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a BETWEEN '0000-00-00' AND '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a BETWEEN '0001-01-02' AND '1002-00-00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pNULL,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 pNULL,p1001-01-01 ALL NULL NULL NULL NULL
4
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a BETWEEN '0001-01-01' AND '1001-01-01';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p1001-01-01 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p0001-01-01,pNULL,p1001-01-01 ALL NULL NULL NULL NULL
5
Using where
DROP TABLE t1;
# Test with DATETIME column NOT NULL
CREATE TABLE t1 (
...
...
@@ -1289,25 +1313,25 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 12 NULL 8 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 index NULL PRIMARY 12 NULL
8
Using where; Using index
1 SIMPLE t1 p20090403 index NULL PRIMARY 12 NULL
2
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
6
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
6
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090402 index NULL PRIMARY 12 NULL
1
3 Using where; Using index
1 SIMPLE t1 p20090402 index NULL PRIMARY 12 NULL 3 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
...
...
@@ -1315,99 +1339,99 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b > CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
6
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 12 NULL
8
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090403 index NULL PRIMARY 12 NULL
2
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
6
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 12 NULL
8
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090403 index NULL PRIMARY 12 NULL
2
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
6
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
6
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090402 index NULL PRIMARY 12 NULL
1
3 Using where; Using index
1 SIMPLE t1 p20090402 index NULL PRIMARY 12 NULL 3 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 13 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
6
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 12 NULL
8
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090403 index NULL PRIMARY 12 NULL
2
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 12 NULL
8
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 12 NULL
8
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090403 index NULL PRIMARY 12 NULL
2
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b > CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
3
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
6
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
13
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 12 NULL
6
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090402 index NULL PRIMARY 12 NULL
1
3 Using where; Using index
1 SIMPLE t1 p20090402 index NULL PRIMARY 12 NULL 3 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
...
...
@@ -1440,21 +1464,21 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 7 NULL 7 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 index NULL PRIMARY 7 NULL
7
Using where; Using index
1 SIMPLE t1 p20090403 index NULL PRIMARY 7 NULL
2
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
2
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
8
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
5
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
5
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
...
...
@@ -1462,79 +1486,79 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
2
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b > CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
2
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
5
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 7 NULL
7
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 index NULL PRIMARY 7 NULL
1
2 Using where; Using index
1 SIMPLE t1 p20090403 index NULL PRIMARY 7 NULL 2 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
2
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
8
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
5
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 7 NULL
7
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 index NULL PRIMARY 7 NULL
1
2 Using where; Using index
1 SIMPLE t1 p20090403 index NULL PRIMARY 7 NULL 2 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
2
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
8
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
5
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
5
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
2
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
2
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
5
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 7 NULL
7
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 index NULL PRIMARY 7 NULL
1
2 Using where; Using index
1 SIMPLE t1 p20090403 index NULL PRIMARY 7 NULL 2 Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
2
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
8
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 7 NULL
7
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402,p20090403 index NULL PRIMARY 7 NULL
7
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
...
...
@@ -1542,19 +1566,19 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
8
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b > CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090404,p20090405 index NULL PRIMARY 7 NULL
8
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
5
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
12
Using where; Using index
1 SIMPLE t1 p20090401,p20090402 index NULL PRIMARY 7 NULL
5
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
...
...
@@ -1562,11 +1586,11 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
2
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
0
Using where; Using index
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b > CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
2
Using where; Using index
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 1
0
Using where; Using index
DROP TABLE t1;
# Test with DATETIME column NULL
CREATE TABLE t1 (
...
...
@@ -1590,25 +1614,25 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL 8 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
8
Using where
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
2
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090402 ALL NULL NULL NULL NULL
1
3 Using where
1 SIMPLE t1 p20090402 ALL NULL NULL NULL NULL 3 Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
...
...
@@ -1616,99 +1640,99 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b > CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
8
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
2
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
8
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
2
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090402 ALL NULL NULL NULL NULL
1
3 Using where
1 SIMPLE t1 p20090402 ALL NULL NULL NULL NULL 3 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 13 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
8
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
2
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
8
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
8
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
2
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b > CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
3
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
13
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
6
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090402 ALL NULL NULL NULL NULL
1
3 Using where
1 SIMPLE t1 p20090402 ALL NULL NULL NULL NULL 3 Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
...
...
@@ -1740,21 +1764,21 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL 7 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
7
Using where
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
2
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
2
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > CAST('2009-04-03' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
8
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
...
...
@@ -1762,79 +1786,79 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
2
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b > CAST('2009-04-02 23:59:59' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
2
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
7
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
1
2 Using where
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL 2 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
2
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > CAST('2009-04-03' AS DATE);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
8
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
7
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
1
2 Using where
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL 2 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
2
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-03 00:00:00';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
8
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
2
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-02 23:59:59';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
2
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b <= '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
7
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b = '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL
1
2 Using where
1 SIMPLE t1 p20090403 ALL NULL NULL NULL NULL 2 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b >= '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
2
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b > '2009-04-03';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
8
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
7
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402,p20090403 ALL NULL NULL NULL NULL
7
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
...
...
@@ -1842,19 +1866,19 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
8
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b > CAST('2009-04-03 00:00:01' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090404,p20090405 ALL NULL NULL NULL NULL
8
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b < CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b <= CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
12
Using where
1 SIMPLE t1 p20090401,p20090402 ALL NULL NULL NULL NULL
5
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b = CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
...
...
@@ -1862,11 +1886,11 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b >= CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
2
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE b > CAST('2009-04-02 23:59:58' AS DATETIME);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
2
Using where
1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 1
0
Using where
DROP TABLE t1;
# For better code coverage of the patch
CREATE TABLE t1 (
...
...
@@ -1930,7 +1954,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1 ALL NULL NULL NULL NULL 3 Using where
explain partitions select * from t2 where a=1 and b=1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0 ALL NULL NULL NULL NULL
3
Using where
1 SIMPLE t2 p0 ALL NULL NULL NULL NULL
2
Using where
create table t3 (
a int
)
...
...
@@ -1988,25 +2012,25 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
explain partitions select * from t5
where (a=10 and b=1) or (a=10 and b=2) or (a=10 and b = 3);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t5 p0_p0sp0,p0_p0sp1 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t5 p0_p0sp0,p0_p0sp1 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t5 where (a=10 and b=2) or (a=10 and b=3)
or (a=10 and b = 4);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t5 p0_p0sp0,p0_p0sp1,p1_p1sp0,p1_p1sp1 ALL NULL NULL NULL NULL 4 Using where
explain partitions select * from t5 where (c=1 and d=1);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t5 p0_p0sp0,p1_p1sp0 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t5 p0_p0sp0,p1_p1sp0 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t5 where (c=2 and d=1);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t5 p0_p0sp1,p1_p1sp1 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t5 p0_p0sp1,p1_p1sp1 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t5 where (a=10 and b=2 and c=1 and d=1) or
(c=2 and d=1);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t5 p0_p0sp0,p0_p0sp1,p1_p1sp1 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t5 p0_p0sp0,p0_p0sp1,p1_p1sp1 ALL NULL NULL NULL NULL
3
Using where
explain partitions select * from t5 where (a=10 and b=2 and c=1 and d=1) or
(b=2 and c=2 and d=1);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t5 p0_p0sp0,p0_p0sp1,p1_p1sp1 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t5 p0_p0sp0,p0_p0sp1,p1_p1sp1 ALL NULL NULL NULL NULL
3
Using where
create table t6 (a int not null) partition by LIST(a) (
partition p1 values in (1),
partition p3 values in (3),
...
...
@@ -2044,7 +2068,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t6 p5,p7,p9 system NULL NULL NULL NULL 1
explain partitions select * from t6 where a >= 3 and a <= 8;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t6 p3,p5,p7 ALL NULL NULL NULL NULL
3
Using where
1 SIMPLE t6 p3,p5,p7 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t6 where a > 3 and a < 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
...
...
@@ -2086,7 +2110,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t6 p5,p7,p9 system NULL NULL NULL NULL 1
explain partitions select * from t6 where a >= 3 and a <= 8;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t6 p3,p5,p7 ALL NULL NULL NULL NULL
3
Using where
1 SIMPLE t6 p3,p5,p7 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t6 where a > 3 and a < 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
...
...
@@ -2325,7 +2349,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
explain partitions
select * from t1 X, t1 Y where X.a = Y.a and (X.a=1 or X.a=2);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE X p1,p2 ALL a NULL NULL NULL
4
Using where
1 SIMPLE X p1,p2 ALL a NULL NULL NULL
2
Using where
1 SIMPLE Y p1,p2 ref a a 4 test.X.a 2
drop table t1;
create table t1 (a int) partition by hash(a) partitions 20;
...
...
@@ -2338,7 +2362,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1,p2 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a > 1 and a <= 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2,p3 ALL NULL NULL NULL NULL
3
Using where
1 SIMPLE t1 p2,p3 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a >= 1 and a <= 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1,p2,p3 ALL NULL NULL NULL NULL 3 Using where
...
...
@@ -2428,22 +2452,22 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL NULL NULL NULL NULL 1010
explain partitions select * from t2 where a < 801 and a > 200;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p1,p2,p3,p4 ALL NULL NULL NULL NULL
101
0 Using where
1 SIMPLE t2 p1,p2,p3,p4 ALL NULL NULL NULL NULL
80
0 Using where
explain partitions select * from t2 where a < 801 and a > 800;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p4 ALL NULL NULL NULL NULL
101
0 Using where
1 SIMPLE t2 p4 ALL NULL NULL NULL NULL
20
0 Using where
explain partitions select * from t2 where a > 600;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL
101
0 Using where
1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL
40
0 Using where
explain partitions select * from t2 where a > 600 and b = 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL
101
0 Using where
1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL
40
0 Using where
explain partitions select * from t2 where a > 600 and b = 4;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL
101
0 Using where
1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL
40
0 Using where
explain partitions select * from t2 where a > 600 and b = 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL
101
0 Using where
1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL
40
0 Using where
explain partitions select * from t2 where b = 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL NULL NULL NULL NULL 1010 Using where
...
...
@@ -2498,19 +2522,19 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL NULL NULL NULL NULL 910
explain partitions select * from t2 where a = 101;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0 ALL NULL NULL NULL NULL
9
10 Using where
1 SIMPLE t2 p0 ALL NULL NULL NULL NULL
1
10 Using where
explain partitions select * from t2 where a = 550;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p2 ALL NULL NULL NULL NULL
91
0 Using where
1 SIMPLE t2 p2 ALL NULL NULL NULL NULL
20
0 Using where
explain partitions select * from t2 where a = 833;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p4 ALL NULL NULL NULL NULL
91
0 Using where
1 SIMPLE t2 p4 ALL NULL NULL NULL NULL
20
0 Using where
explain partitions select * from t2 where (a = 100 OR a = 900);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p4 ALL NULL NULL NULL NULL
9
10 Using where
1 SIMPLE t2 p0,p4 ALL NULL NULL NULL NULL
3
10 Using where
explain partitions select * from t2 where (a > 100 AND a < 600);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2 ALL NULL NULL NULL NULL
9
10 Using where
1 SIMPLE t2 p0,p1,p2 ALL NULL NULL NULL NULL
5
10 Using where
explain partitions select * from t2 where b = 4;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ref b b 5 const 76 Using where
...
...
@@ -2796,17 +2820,17 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
explain partitions select * from t1
where a >= 18446744073709551000-1 and a <= 18446744073709551000+1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p3,p4 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t1 p3,p4 ALL NULL NULL NULL NULL
3
Using where
explain partitions select * from t1
where a between 18446744073709551001 and 18446744073709551002;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a = 18446744073709551000;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a = 18446744073709551613;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a = 18446744073709551614;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
...
...
@@ -2833,10 +2857,10 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a=0xFE;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t1 p2 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t2 where a=0xFE;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p2 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t2 p2 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a > 0xFE AND a <= 0xFF;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
...
...
@@ -2845,22 +2869,22 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
explain partitions select * from t1 where a >= 0xFE AND a <= 0xFF;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t1 p2 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t2 where a >= 0xFE AND a <= 0xFF;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p2 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t2 p2 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a < 64 AND a >= 63;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t2 where a < 64 AND a >= 63;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0 ALL NULL NULL NULL NULL
4
Using where
1 SIMPLE t2 p0 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a <= 64 AND a >= 63;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL
6
Using where
1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL
4
Using where
explain partitions select * from t2 where a <= 64 AND a >= 63;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1 ALL NULL NULL NULL NULL
6
Using where
1 SIMPLE t2 p0,p1 ALL NULL NULL NULL NULL
4
Using where
drop table t1;
drop table t2;
create table t1(a bigint unsigned not null) partition by range(a+0) (
...
...
mysql-test/r/partition_range.result
View file @
b76f3912
...
...
@@ -73,13 +73,13 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pnull system NULL NULL NULL NULL 1
explain partitions select * from t1 where a >= 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL
3
Using where
1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a < 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
explain partitions select * from t1 where a <= 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pnull,p0 ALL NULL NULL NULL NULL
3
Using where
1 SIMPLE t1 pnull,p0 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a > 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
...
...
@@ -112,16 +112,16 @@ select * from t1 where a > 1;
a b
explain partitions select * from t1 where a is null;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL
6
Using where
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a >= 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0_p0sp0,p0_p0sp1,p1_p1sp0,p1_p1sp1 ALL NULL NULL NULL NULL
6
Using where
1 SIMPLE t1 p0_p0sp0,p0_p0sp1,p1_p1sp0,p1_p1sp1 ALL NULL NULL NULL NULL
4
Using where
explain partitions select * from t1 where a < 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL
6
Using where
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL
2
Using where
explain partitions select * from t1 where a <= 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1,p0_p0sp0,p0_p0sp1 ALL NULL NULL NULL NULL
6
Using where
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1,p0_p0sp0,p0_p0sp1 ALL NULL NULL NULL NULL
4
Using where
explain partitions select * from t1 where a > 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
...
...
mysql-test/suite/parts/r/partition_alter3_innodb.result
View file @
b76f3912
...
...
@@ -141,7 +141,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL
7
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -165,7 +165,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
5
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -190,7 +190,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
3
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -226,7 +226,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL
3
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -248,7 +248,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
4
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -269,7 +269,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
4
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -289,7 +289,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
5
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -308,7 +308,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL
7
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -326,7 +326,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
2
0 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
1
0 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -452,7 +452,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
7
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -476,7 +476,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
5
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -504,7 +504,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL
3
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -538,7 +538,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
4
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -563,7 +563,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
3
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -587,7 +587,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
23
Using where
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
10
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -610,7 +610,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
5
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -632,7 +632,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
7
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -653,7 +653,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
2
0 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
1
0 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
mysql-test/suite/parts/r/partition_alter3_myisam.result
View file @
b76f3912
...
...
@@ -155,7 +155,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL
7
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -187,7 +187,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
5
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -228,7 +228,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
3
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -278,7 +278,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL
3
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -312,7 +312,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
4
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -343,7 +343,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
4
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -371,7 +371,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
5
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -396,7 +396,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL
7
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -418,7 +418,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
2
0 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
1
0 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -552,7 +552,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
7
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -584,7 +584,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
5
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -628,7 +628,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL
3
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -676,7 +676,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
4
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -713,7 +713,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
3
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -747,7 +747,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
2
0 Using where
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL
1
0 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -778,7 +778,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
5
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -806,7 +806,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
20
Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL
7
Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
@@ -831,7 +831,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
2
0 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL
1
0 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
...
...
mysql-test/t/partition.test
View file @
b76f3912
...
...
@@ -14,6 +14,33 @@
drop
table
if
exists
t1
,
t2
;
--
enable_warnings
--
echo
#
--
echo
# Bug#55458: Partitioned MyISAM table gets crashed by multi-table update
--
echo
#
CREATE
TABLE
t1
(
`id`
int
NOT
NULL
,
`user_num`
int
DEFAULT
NULL
,
PRIMARY
KEY
(
`id`
)
)
ENGINE
=
MyISAM
CHARSET
=
latin1
;
INSERT
INTO
t1
VALUES
(
1
,
8601
);
INSERT
INTO
t1
VALUES
(
2
,
8601
);
INSERT
INTO
t1
VALUES
(
3
,
8601
);
INSERT
INTO
t1
VALUES
(
4
,
8601
);
CREATE
TABLE
t2
(
`id`
int
(
11
)
NOT
NULL
,
`user_num`
int
DEFAULT
NULL
,
`name`
varchar
(
64
)
NOT
NULL
,
PRIMARY
KEY
(
`id`
)
)
ENGINE
=
MyISAM
CHARSET
=
latin1
PARTITION
BY
HASH
(
id
)
PARTITIONS
2
;
INSERT
INTO
t2
VALUES
(
1
,
8601
,
'John'
);
INSERT
INTO
t2
VALUES
(
2
,
8601
,
'JS'
);
INSERT
INTO
t2
VALUES
(
3
,
8601
,
'John S'
);
UPDATE
t1
,
t2
SET
t2
.
name
=
'John Smith'
WHERE
t1
.
user_num
=
t2
.
user_num
;
DROP
TABLE
t1
,
t2
;
#
# Bug#48276: can't add column if subpartition exists
CREATE
TABLE
t1
(
a
INT
,
b
INT
)
...
...
mysql-test/t/partition_pruning.test
View file @
b76f3912
...
...
@@ -8,6 +8,30 @@
drop
table
if
exists
t1
,
t2
,
t3
,
t4
,
t5
,
t6
,
t7
,
t8
,
t9
;
--
enable_warnings
--
echo
#
--
echo
# Bug#53806: Wrong estimates for range query in partitioned MyISAM table
--
echo
# Bug#46754: 'rows' field doesn't reflect partition pruning
--
echo
#
CREATE
TABLE
t1
(
a
INT
PRIMARY
KEY
)
PARTITION
BY
RANGE
(
a
)
(
PARTITION
p0
VALUES
LESS
THAN
(
1
),
PARTITION
p1
VALUES
LESS
THAN
(
2
),
PARTITION
p2
VALUES
LESS
THAN
(
3
),
PARTITION
p3
VALUES
LESS
THAN
(
4
),
PARTITION
p4
VALUES
LESS
THAN
(
5
),
PARTITION
p5
VALUES
LESS
THAN
(
6
),
PARTITION
max
VALUES
LESS
THAN
MAXVALUE
);
INSERT
INTO
t1
VALUES
(
-
1
),(
0
),(
1
),(
2
),(
3
),(
4
),(
5
),(
6
),(
7
),(
8
);
--
replace_column
1
# 2 # 3 # 4 # 5 # 6 # 7 # 8 # 9 # 11 #
EXPLAIN
PARTITIONS
SELECT
*
FROM
t1
WHERE
a
<=
1
;
--
replace_column
1
# 2 # 3 # 4 # 5 # 6 # 7 # 8 # 9 # 11 #
EXPLAIN
PARTITIONS
SELECT
*
FROM
t1
WHERE
a
<
7
;
--
replace_column
1
# 2 # 3 # 4 # 5 # 6 # 7 # 8 # 9 # 11 #
EXPLAIN
PARTITIONS
SELECT
*
FROM
t1
WHERE
a
<=
1
;
DROP
TABLE
t1
;
--
echo
#
--
echo
# Bug#49742: Partition Pruning not working correctly for RANGE
--
echo
#
...
...
sql/ha_partition.cc
View file @
b76f3912
...
...
@@ -232,6 +232,8 @@ void ha_partition::init_handler_variables()
m_innodb
=
FALSE
;
m_extra_cache
=
FALSE
;
m_extra_cache_size
=
0
;
m_extra_prepare_for_update
=
FALSE
;
m_extra_cache_part_id
=
NO_CURRENT_PART_ID
;
m_handler_status
=
handler_not_initialized
;
m_low_byte_first
=
1
;
m_part_field_array
=
NULL
;
...
...
@@ -5380,9 +5382,6 @@ void ha_partition::get_dynamic_partition_info(PARTITION_INFO *stat_info,
when performing the sequential scan we will check this recorded value
and call extra_opt whenever we start scanning a new partition.
monty: Neads to be fixed so that it's passed to all handlers when we
move to another partition during table scan.
HA_EXTRA_NO_CACHE:
When performing a UNION SELECT HA_EXTRA_NO_CACHE is called from the
flush method in the select_union class.
...
...
@@ -5394,7 +5393,7 @@ void ha_partition::get_dynamic_partition_info(PARTITION_INFO *stat_info,
for. If no cache is in use they will quickly return after finding
this out. And we also ensure that all caches are disabled and no one
is left by mistake.
In the future this call will probably be deleted an we will instead call
In the future this call will probably be deleted an
d
we will instead call
::reset();
HA_EXTRA_WRITE_CACHE:
...
...
@@ -5406,8 +5405,9 @@ void ha_partition::get_dynamic_partition_info(PARTITION_INFO *stat_info,
This is called as part of a multi-table update. When the table to be
updated is also scanned then this informs MyISAM handler to drop any
caches if dynamic records are used (fixed size records do not care
about this call). We pass this along to all underlying MyISAM handlers
and ignore it for the rest.
about this call). We pass this along to the first partition to scan, and
flag that it is to be called after HA_EXTRA_CACHE when moving to the next
partition to scan.
HA_EXTRA_PREPARE_FOR_DROP:
Only used by MyISAM, called in preparation for a DROP TABLE.
...
...
@@ -5554,9 +5554,21 @@ int ha_partition::extra(enum ha_extra_function operation)
case
HA_EXTRA_PREPARE_FOR_RENAME
:
DBUG_RETURN
(
prepare_for_rename
());
break
;
case
HA_EXTRA_PREPARE_FOR_UPDATE
:
DBUG_ASSERT
(
m_extra_cache
);
/*
Needs to be run on the first partition in the range now, and
later in late_extra_cache, when switching to a new partition to scan.
*/
m_extra_prepare_for_update
=
TRUE
;
if
(
m_part_spec
.
start_part
!=
NO_CURRENT_PART_ID
)
{
DBUG_ASSERT
(
m_extra_cache_part_id
==
m_part_spec
.
start_part
);
VOID
(
m_file
[
m_part_spec
.
start_part
]
->
extra
(
HA_EXTRA_PREPARE_FOR_UPDATE
));
}
break
;
case
HA_EXTRA_NORMAL
:
case
HA_EXTRA_QUICK
:
case
HA_EXTRA_PREPARE_FOR_UPDATE
:
case
HA_EXTRA_FORCE_REOPEN
:
case
HA_EXTRA_PREPARE_FOR_DROP
:
case
HA_EXTRA_FLUSH_CACHE
:
...
...
@@ -5579,10 +5591,22 @@ int ha_partition::extra(enum ha_extra_function operation)
break
;
}
case
HA_EXTRA_NO_CACHE
:
{
int
ret
=
0
;
if
(
m_extra_cache_part_id
!=
NO_CURRENT_PART_ID
)
ret
=
m_file
[
m_extra_cache_part_id
]
->
extra
(
HA_EXTRA_NO_CACHE
);
m_extra_cache
=
FALSE
;
m_extra_cache_size
=
0
;
m_extra_prepare_for_update
=
FALSE
;
m_extra_cache_part_id
=
NO_CURRENT_PART_ID
;
DBUG_RETURN
(
ret
);
}
case
HA_EXTRA_WRITE_CACHE
:
{
m_extra_cache
=
FALSE
;
m_extra_cache_size
=
0
;
m_extra_prepare_for_update
=
FALSE
;
m_extra_cache_part_id
=
NO_CURRENT_PART_ID
;
DBUG_RETURN
(
loop_extra
(
operation
));
}
case
HA_EXTRA_IGNORE_NO_KEY
:
...
...
@@ -5710,6 +5734,7 @@ int ha_partition::extra_opt(enum ha_extra_function operation, ulong cachesize)
void
ha_partition
::
prepare_extra_cache
(
uint
cachesize
)
{
DBUG_ENTER
(
"ha_partition::prepare_extra_cache()"
);
DBUG_PRINT
(
"info"
,
(
"cachesize %u"
,
cachesize
));
m_extra_cache
=
TRUE
;
m_extra_cache_size
=
cachesize
;
...
...
@@ -5768,16 +5793,18 @@ int ha_partition::loop_extra(enum ha_extra_function operation)
{
int
result
=
0
,
tmp
;
handler
**
file
;
bool
is_select
;
DBUG_ENTER
(
"ha_partition::loop_extra()"
);
/*
TODO, 5.2: this is where you could possibly add optimisations to add the bitmap
_if_ a SELECT.
*/
is_select
=
(
thd_sql_command
(
ha_thd
())
==
SQLCOM_SELECT
);
for
(
file
=
m_file
;
*
file
;
file
++
)
{
if
((
tmp
=
(
*
file
)
->
extra
(
operation
)))
result
=
tmp
;
if
(
!
is_select
||
bitmap_is_set
(
&
(
m_part_info
->
used_partitions
),
file
-
m_file
))
{
if
((
tmp
=
(
*
file
)
->
extra
(
operation
)))
result
=
tmp
;
}
}
DBUG_RETURN
(
result
);
}
...
...
@@ -5798,14 +5825,22 @@ void ha_partition::late_extra_cache(uint partition_id)
{
handler
*
file
;
DBUG_ENTER
(
"ha_partition::late_extra_cache"
);
DBUG_PRINT
(
"info"
,
(
"extra_cache %u partid %u size %u"
,
m_extra_cache
,
partition_id
,
m_extra_cache_size
));
if
(
!
m_extra_cache
)
if
(
!
m_extra_cache
&&
!
m_extra_prepare_for_update
)
DBUG_VOID_RETURN
;
file
=
m_file
[
partition_id
];
if
(
m_extra_cache_size
==
0
)
VOID
(
file
->
extra
(
HA_EXTRA_CACHE
));
else
VOID
(
file
->
extra_opt
(
HA_EXTRA_CACHE
,
m_extra_cache_size
));
if
(
m_extra_prepare_for_update
)
{
DBUG_ASSERT
(
m_extra_cache
);
VOID
(
file
->
extra
(
HA_EXTRA_PREPARE_FOR_UPDATE
));
}
m_extra_cache_part_id
=
partition_id
;
DBUG_VOID_RETURN
;
}
...
...
@@ -5826,10 +5861,12 @@ void ha_partition::late_extra_no_cache(uint partition_id)
handler
*
file
;
DBUG_ENTER
(
"ha_partition::late_extra_no_cache"
);
if
(
!
m_extra_cache
)
if
(
!
m_extra_cache
&&
!
m_extra_prepare_for_update
)
DBUG_VOID_RETURN
;
file
=
m_file
[
partition_id
];
VOID
(
file
->
extra
(
HA_EXTRA_NO_CACHE
));
DBUG_ASSERT
(
partition_id
==
m_extra_cache_part_id
);
m_extra_cache_part_id
=
NO_CURRENT_PART_ID
;
DBUG_VOID_RETURN
;
}
...
...
sql/ha_partition.h
View file @
b76f3912
...
...
@@ -154,6 +154,10 @@ private:
*/
bool
m_extra_cache
;
uint
m_extra_cache_size
;
/* The same goes for HA_EXTRA_PREPARE_FOR_UPDATE */
bool
m_extra_prepare_for_update
;
/* Which partition has active cache */
uint
m_extra_cache_part_id
;
void
init_handler_variables
();
/*
...
...
sql/sql_select.cc
View file @
b76f3912
...
...
@@ -16662,7 +16662,15 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
if
(
tab
->
select
&&
tab
->
select
->
quick
)
examined_rows
=
tab
->
select
->
quick
->
records
;
else
if
(
tab
->
type
==
JT_NEXT
||
tab
->
type
==
JT_ALL
)
examined_rows
=
tab
->
limit
?
tab
->
limit
:
tab
->
table
->
file
->
records
();
{
if
(
tab
->
limit
)
examined_rows
=
tab
->
limit
;
else
{
tab
->
table
->
file
->
info
(
HA_STATUS_VARIABLE
);
examined_rows
=
tab
->
table
->
file
->
stats
.
records
;
}
}
else
examined_rows
=
(
ha_rows
)
join
->
best_positions
[
i
].
records_read
;
...
...
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