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-rw-r--r--mysql-test/r/partition.result27
-rw-r--r--mysql-test/r/partition_hash.result14
-rw-r--r--mysql-test/r/partition_innodb.result18
-rw-r--r--mysql-test/r/partition_pruning.result548
-rw-r--r--mysql-test/r/partition_range.result16
-rw-r--r--mysql-test/suite/parts/r/partition_alter3_innodb.result36
-rw-r--r--mysql-test/suite/parts/r/partition_alter3_myisam.result36
-rw-r--r--mysql-test/t/partition.test28
-rw-r--r--mysql-test/t/partition_pruning.test24
-rw-r--r--sql/ha_partition.cc67
-rw-r--r--sql/ha_partition.h4
-rw-r--r--sql/sql_select.cc10
12 files changed, 489 insertions, 339 deletions
diff --git a/mysql-test/r/partition.result b/mysql-test/r/partition.result
index dfcd9dde73d..ae6cf09e25d 100644
--- a/mysql-test/r/partition.result
+++ b/mysql-test/r/partition.result
@@ -1,4 +1,29 @@
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;
# Bug#39338: Fieldnames in
# INFORMATIONSCHEMA.PARTITIONS.PARTITION_EXPRESSION become unescaped
# NOTE: the partition expression is saved as a string, so changing from
@@ -1472,7 +1497,7 @@ 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
diff --git a/mysql-test/r/partition_hash.result b/mysql-test/r/partition_hash.result
index dcefd70ff43..90126bdd4fd 100644
--- a/mysql-test/r/partition_hash.result
+++ b/mysql-test/r/partition_hash.result
@@ -69,31 +69,31 @@ 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
explain partitions select * from t1 where a >= 1 and a <= 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
-1 SIMPLE t1 p0,p1,p2 ALL NULL NULL NULL NULL 9 Using where
+1 SIMPLE t1 p0,p1,p2 ALL NULL NULL NULL NULL 7 Using where
drop table t1;
CREATE TABLE t1 (
a int not null,
diff --git a/mysql-test/r/partition_innodb.result b/mysql-test/r/partition_innodb.result
index 93cb1617d2f..148504bcc8b 100644
--- a/mysql-test/r/partition_innodb.result
+++ b/mysql-test/r/partition_innodb.result
@@ -120,31 +120,31 @@ 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
diff --git a/mysql-test/r/partition_pruning.result b/mysql-test/r/partition_pruning.result
index 76024cdee53..c3a59c6e5f8 100644
--- a/mysql-test/r/partition_pruning.result
+++ b/mysql-test/r/partition_pruning.result
@@ -1,5 +1,29 @@
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;
# TO_SECONDS, test of LIST and index
CREATE TABLE t1 (a DATE, KEY(a))
@@ -1415,10 +1439,10 @@ 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
@@ -1430,7 +1454,7 @@ 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
@@ -1538,62 +1562,62 @@ 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 (
@@ -1618,25 +1642,25 @@ 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 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
@@ -1644,99 +1668,99 @@ 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 12 NULL 10 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 13 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
@@ -1769,21 +1793,21 @@ 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 12 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 10 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
@@ -1791,79 +1815,79 @@ 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 12 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 10 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 12 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 10 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 12 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 12 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 10 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 12 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 12 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 10 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 12 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 10 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 12 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 10 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 12 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 12 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 10 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
@@ -1871,19 +1895,19 @@ 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
@@ -1891,11 +1915,11 @@ 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 12 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 10 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 12 Using where; Using index
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 index NULL PRIMARY 7 NULL 10 Using where; Using index
DROP TABLE t1;
# Test with DATETIME column NULL
CREATE TABLE t1 (
@@ -1919,25 +1943,25 @@ 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 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
@@ -1945,99 +1969,99 @@ 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 13 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
@@ -2069,21 +2093,21 @@ 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 12 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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
@@ -2091,79 +2115,79 @@ 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 12 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 12 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 12 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 12 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 12 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 12 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 12 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 12 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 12 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 12 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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
@@ -2171,19 +2195,19 @@ 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
@@ -2191,11 +2215,11 @@ 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 12 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 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 12 Using where
+1 SIMPLE t1 p20090401,p20090403,p20090404,p20090405 ALL NULL NULL NULL NULL 10 Using where
DROP TABLE t1;
# For better code coverage of the patch
CREATE TABLE t1 (
@@ -2259,7 +2283,7 @@ 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
)
@@ -2317,25 +2341,25 @@ 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),
@@ -2373,7 +2397,7 @@ 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
@@ -2415,7 +2439,7 @@ 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
@@ -2667,7 +2691,7 @@ 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
@@ -2757,22 +2781,22 @@ 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 1010 Using where
+1 SIMPLE t2 p1,p2,p3,p4 ALL NULL NULL NULL NULL 800 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 1010 Using where
+1 SIMPLE t2 p4 ALL NULL NULL NULL NULL 200 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 1010 Using where
+1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL 400 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 1010 Using where
+1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL 400 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 1010 Using where
+1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL 400 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 1010 Using where
+1 SIMPLE t2 p3,p4 ALL NULL NULL NULL NULL 400 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
@@ -2827,19 +2851,19 @@ 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 910 Using where
+1 SIMPLE t2 p0 ALL NULL NULL NULL NULL 110 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 910 Using where
+1 SIMPLE t2 p2 ALL NULL NULL NULL NULL 200 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 910 Using where
+1 SIMPLE t2 p4 ALL NULL NULL NULL NULL 200 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 910 Using where
+1 SIMPLE t2 p0,p4 ALL NULL NULL NULL NULL 310 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 910 Using where
+1 SIMPLE t2 p0,p1,p2 ALL NULL NULL NULL NULL 510 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
@@ -3125,17 +3149,17 @@ 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
@@ -3162,10 +3186,10 @@ 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
@@ -3174,22 +3198,22 @@ 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) (
diff --git a/mysql-test/r/partition_range.result b/mysql-test/r/partition_range.result
index d37281d9638..4280158dd16 100644
--- a/mysql-test/r/partition_range.result
+++ b/mysql-test/r/partition_range.result
@@ -53,10 +53,10 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL 4 Using where
explain partitions select * from t1 where a <= '2007-03-07 23:59:59';
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 t1 where a < '2007-03-07 23:59:59';
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
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
@@ -203,13 +203,13 @@ 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
@@ -242,16 +242,16 @@ 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
diff --git a/mysql-test/suite/parts/r/partition_alter3_innodb.result b/mysql-test/suite/parts/r/partition_alter3_innodb.result
index dc6008842a3..c5750e007e6 100644
--- a/mysql-test/suite/parts/r/partition_alter3_innodb.result
+++ b/mysql-test/suite/parts/r/partition_alter3_innodb.result
@@ -148,7 +148,7 @@ 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
@@ -176,7 +176,7 @@ 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
@@ -209,7 +209,7 @@ 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
@@ -252,7 +252,7 @@ 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
@@ -280,7 +280,7 @@ 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
@@ -306,7 +306,7 @@ 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
@@ -330,7 +330,7 @@ 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
@@ -352,7 +352,7 @@ 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
@@ -372,7 +372,7 @@ 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 10 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@@ -505,7 +505,7 @@ 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
@@ -533,7 +533,7 @@ 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
@@ -569,7 +569,7 @@ 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
@@ -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 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
@@ -641,7 +641,7 @@ 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
@@ -670,7 +670,7 @@ 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
@@ -697,7 +697,7 @@ 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
@@ -722,7 +722,7 @@ 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
@@ -745,7 +745,7 @@ 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 10 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
diff --git a/mysql-test/suite/parts/r/partition_alter3_myisam.result b/mysql-test/suite/parts/r/partition_alter3_myisam.result
index 374b108b57e..a5dec48e85c 100644
--- a/mysql-test/suite/parts/r/partition_alter3_myisam.result
+++ b/mysql-test/suite/parts/r/partition_alter3_myisam.result
@@ -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 20 Using where
+1 SIMPLE t1 p0 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
@@ -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 20 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
@@ -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 20 Using where
+1 SIMPLE t1 p0 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
diff --git a/mysql-test/t/partition.test b/mysql-test/t/partition.test
index 1224dee24ed..1a64988d058 100644
--- a/mysql-test/t/partition.test
+++ b/mysql-test/t/partition.test
@@ -14,6 +14,34 @@
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;
+
--echo # Bug#39338: Fieldnames in
--echo # INFORMATIONSCHEMA.PARTITIONS.PARTITION_EXPRESSION become unescaped
--echo # NOTE: the partition expression is saved as a string, so changing from
diff --git a/mysql-test/t/partition_pruning.test b/mysql-test/t/partition_pruning.test
index 27f6ddde615..f2ca16b9259 100644
--- a/mysql-test/t/partition_pruning.test
+++ b/mysql-test/t/partition_pruning.test
@@ -9,6 +9,30 @@ 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 #
CREATE TABLE t1 (a INT PRIMARY KEY)
diff --git a/sql/ha_partition.cc b/sql/ha_partition.cc
index e6915b45a97..d9f69a0b28d 100644
--- a/sql/ha_partition.cc
+++ b/sql/ha_partition.cc
@@ -231,6 +231,8 @@ 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;
@@ -5515,9 +5517,6 @@ void ha_partition::get_dynamic_partition_info(PARTITION_STATS *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.
@@ -5529,7 +5528,7 @@ void ha_partition::get_dynamic_partition_info(PARTITION_STATS *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 and we will instead call
::reset();
HA_EXTRA_WRITE_CACHE:
@@ -5541,8 +5540,9 @@ void ha_partition::get_dynamic_partition_info(PARTITION_STATS *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.
@@ -5697,9 +5697,21 @@ 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:
@@ -5722,10 +5734,22 @@ 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:
@@ -5862,6 +5886,7 @@ 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;
@@ -5920,16 +5945,18 @@ 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);
}
@@ -5950,14 +5977,22 @@ 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;
}
@@ -5978,10 +6013,12 @@ 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;
}
diff --git a/sql/ha_partition.h b/sql/ha_partition.h
index cfab2dde394..353e0d17159 100644
--- a/sql/ha_partition.h
+++ b/sql/ha_partition.h
@@ -137,6 +137,10 @@ 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();
/*
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 07e109c34ea..bded06b2924 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -16705,7 +16705,15 @@ 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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