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mysql 5.5.23 merge

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This commit is contained in:
Sergei Golubchik
2012-04-10 08:28:13 +02:00
parent f860b2aad4 ed41846161
commit 16c5c53fc2
118 changed files with 3926 additions and 747 deletions
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86
mysql-test/r/partition_pruning.result
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@ -18,7 +18,7 @@ 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 #
# # # # # # # # # 10 #
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
# # # # # # # # # 3 #
@ -105,7 +105,7 @@ a
6
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 p0,p1,p2,p3,p4,p5,max range PRIMARY PRIMARY 4 NULL 9 Using where; Using index
1 SIMPLE t1 p0,p1,p2,p3,p4,p5,max index PRIMARY PRIMARY 4 NULL 10 Using where; Using index
SELECT * FROM t1 WHERE a <= 1;
a
-1
@ -168,7 +168,7 @@ a
6
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 p0,p1,p2,p3,p4,p5,max range PRIMARY PRIMARY 4 NULL 9 Using where; Using index
1 SIMPLE t1 p0,p1,p2,p3,p4,p5,max index PRIMARY PRIMARY 4 NULL 10 Using where; Using index
SELECT * FROM t1 WHERE a <= 7;
a
-1
@ -182,7 +182,7 @@ a
7
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 p0,p1,p2,p3,p4,p5,max range PRIMARY PRIMARY 4 NULL 9 Using where; Using index
1 SIMPLE t1 p0,p1,p2,p3,p4,p5,max index PRIMARY PRIMARY 4 NULL 10 Using where; Using index
SELECT * FROM t1 WHERE a = 1;
a
1
@ -424,7 +424,7 @@ a
5
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 p0,p1,p2,p3,p4,max range PRIMARY PRIMARY 4 NULL 8 Using where; Using index
1 SIMPLE t1 p0,p1,p2,p3,p4,max index PRIMARY PRIMARY 4 NULL 9 Using where; Using index
SELECT * FROM t1 WHERE a <= 1;
a
-1
@ -474,7 +474,7 @@ 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,max range PRIMARY PRIMARY 4 NULL 8 Using where; Using index
1 SIMPLE t1 p0,p1,p2,p3,p4,max index PRIMARY PRIMARY 4 NULL 9 Using where; Using index
SELECT * FROM t1 WHERE a <= 6;
a
-1
@ -487,7 +487,7 @@ a
6
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 p0,p1,p2,p3,p4,max range PRIMARY PRIMARY 4 NULL 8 Using where; Using index
1 SIMPLE t1 p0,p1,p2,p3,p4,max index PRIMARY PRIMARY 4 NULL 9 Using where; Using index
SELECT * FROM t1 WHERE a = 1;
a
1
@ -744,13 +744,13 @@ 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 range a a 4 NULL 3 Using where; Using index
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 index a a 4 NULL 6 Using where; Using index
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 range a a 4 NULL 3 Using where; Using index
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 index a a 4 NULL 6 Using where; Using index
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 range a a 4 NULL 4 Using where; Using index
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 range a a 4 NULL 3 Using where; Using index
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 range a a 4 NULL 3 Using where; Using index
@ -759,26 +759,26 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1001-01-01 system a 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 range a a 4 NULL 3 Using where; Using index
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 index a a 4 NULL 6 Using where; Using index
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 range a a 4 NULL 3 Using where; Using index
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 index a a 4 NULL 6 Using where; Using index
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 range a a 4 NULL 4 Using where; Using index
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 range a a 4 NULL 3 Using where; Using index
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 range a a 4 NULL 4 Using where; Using index
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 range a a 4 NULL 3 Using where; Using index
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 ref a a 4 const 1 Using index
# 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 pNULL,p0001-01-01,p1001-01-01,p2001-01-01 range a a 4 NULL 5 Using where; Using index
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01,p2001-01-01 range 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,p0001-01-01,p1001-01-01,p2001-01-01 range a a 4 NULL 5 Using where; Using index
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01,p2001-01-01 range 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 4 Using where; Using index
@ -790,16 +790,16 @@ 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
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 range a a 4 NULL 5 Using where; Using index
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01,p2001-01-01 range a a 4 NULL 4 Using where; Using index
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 range a a 4 NULL 3 Using where; Using index
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 index a a 4 NULL 6 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,p2001-01-01 range a a 4 NULL 3 Using where; Using index
1 SIMPLE t1 pNULL,p1001-01-01,p2001-01-01 index a a 4 NULL 5 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 pNULL,p0001-01-01,p1001-01-01 range a a 4 NULL 3 Using where; Using index
1 SIMPLE t1 pNULL,p0001-01-01,p1001-01-01 index a a 4 NULL 6 Using where; Using index
# test without index
ALTER TABLE t1 DROP KEY a;
SELECT * FROM t1 WHERE a < '1001-01-01';
@ -1076,7 +1076,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02 range a a 4 NULL 3 Using where; Using index
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 range a a 4 NULL 4 Using where; Using index
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 range a a 4 NULL 3 Using where; Using index
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 range a a 4 NULL 4 Using where; Using index
@ -1104,10 +1104,10 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
# 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 range a a 4 NULL 5 Using where; Using index
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 <= '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 range a a 4 NULL 5 Using where; Using index
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 >= '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 4 Using where; Using index
@ -1119,10 +1119,10 @@ 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
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 range a a 4 NULL 5 Using where; Using index
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 '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 range a a 4 NULL 4 Using where; Using index
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 range a a 4 NULL 3 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 4 Using where; Using index
@ -1405,7 +1405,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02 range a a 4 NULL 3 Using where; Using index
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 range a a 4 NULL 4 Using where; Using index
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 range a a 4 NULL 3 Using where; Using index
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 range a a 4 NULL 4 Using where; Using index
@ -1433,10 +1433,10 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
# 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 range a a 4 NULL 5 Using where; Using index
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 <= '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 range a a 4 NULL 5 Using where; Using index
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 >= '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 4 Using where; Using index
@ -1448,10 +1448,10 @@ 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
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 range a a 4 NULL 5 Using where; Using index
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 '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 range a a 4 NULL 4 Using where; Using index
1 SIMPLE t1 p0001-01-01,pNULL,p0000-01-02,p1001-01-01 range a a 4 NULL 3 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 4 Using where; Using index
@ -2867,18 +2867,18 @@ 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 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
1 SIMPLE t2 p0,p1,p2,p3,p4 ref b b 5 const 96
explain extended select * from t2 where b = 6;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ref b b 5 const 76 100.00
1 SIMPLE t2 ref b b 5 const 96 100.00
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` = 6)
explain partitions select * from t2 where b = 6;
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
1 SIMPLE t2 p0,p1,p2,p3,p4 ref b b 5 const 96
explain extended select * from t2 where b in (1,3,5);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 40.66 Using where
1 SIMPLE t2 ALL b NULL NULL NULL 910 51.65 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` in (1,3,5))
explain partitions select * from t2 where b in (1,3,5);
@ -2886,7 +2886,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL b NULL NULL NULL 910 Using where
explain extended select * from t2 where b in (2,4,6);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 25.05 Using where
1 SIMPLE t2 ALL b NULL NULL NULL 910 31.65 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` in (2,4,6))
explain partitions select * from t2 where b in (2,4,6);
@ -2894,7 +2894,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL b NULL NULL NULL 910 Using where
explain extended select * from t2 where b in (7,8,9);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 36.70 Using where
1 SIMPLE t2 ALL b NULL NULL NULL 910 19.12 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` in (7,8,9))
explain partitions select * from t2 where b in (7,8,9);
@ -2902,7 +2902,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL b NULL NULL NULL 910 Using where
explain extended select * from t2 where b > 5;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 44.84 Using where
1 SIMPLE t2 ALL b NULL NULL NULL 910 29.23 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` > 5)
explain partitions select * from t2 where b > 5;
@ -2910,7 +2910,7 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL b NULL NULL NULL 910 Using where
explain extended select * from t2 where b > 5 and b < 8;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 22.09 Using where
1 SIMPLE t2 ALL b NULL NULL NULL 910 28.13 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where ((`test`.`t2`.`b` > 5) and (`test`.`t2`.`b` < 8))
explain partitions select * from t2 where b > 5 and b < 8;
@ -2918,15 +2918,15 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL b NULL NULL NULL 910 Using where
explain extended select * from t2 where b > 5 and b < 7;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 range b b 5 NULL 76 100.00 Using where
1 SIMPLE t2 range b b 5 NULL 96 100.00 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where ((`test`.`t2`.`b` > 5) and (`test`.`t2`.`b` < 7))
explain partitions select * from t2 where b > 5 and b < 7;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 range b b 5 NULL 76 Using where
1 SIMPLE t2 p0,p1,p2,p3,p4 range b b 5 NULL 96 Using where
explain extended select * from t2 where b > 0 and b < 5;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 41.65 Using where
1 SIMPLE t2 ALL b NULL NULL NULL 910 53.19 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where ((`test`.`t2`.`b` > 0) and (`test`.`t2`.`b` < 5))
explain partitions select * from t2 where b > 0 and b < 5;
@ -2960,10 +2960,10 @@ flush status;
delete from t2 where b = 7;
show status like 'Handler_read_rnd_next';
Variable_name Value
Handler_read_rnd_next 0
Handler_read_rnd_next 915
show status like 'Handler_read_key';
Variable_name Value
Handler_read_key 5
Handler_read_key 0
flush status;
delete from t2 where b > 5;
show status like 'Handler_read_rnd_next';