1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
#
# Test of group functions that depend on innodb
#
--source include/have_innodb.inc
--disable_warnings
create table t1 (USR_ID integer not null, MAX_REQ integer not null, constraint PK_SEA_USER primary key (USR_ID)) engine=InnoDB;
--enable_warnings
insert into t1 values (1, 3);
select count(*) + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ from t1 group by MAX_REQ;
select Case When Count(*) < MAX_REQ Then 1 Else 0 End from t1 where t1.USR_ID = 1 group by MAX_REQ;
drop table t1;
#
# Bug #12882 min/max inconsistent on empty table
#
--disable_warnings
create table t1m (a int) engine=myisam;
create table t1i (a int) engine=innodb;
create table t2m (a int) engine=myisam;
create table t2i (a int) engine=innodb;
--enable_warnings
insert into t2m values (5);
insert into t2i values (5);
# test with MyISAM
select min(a) from t1m;
select min(7) from t1m;
select min(7);
explain select min(7) from t2m join t1m;
select min(7) from t2m join t1m;
select max(a) from t1m;
select max(7) from t1m;
select max(7);
explain select max(7) from t2m join t1m;
select max(7) from t2m join t1m;
select 1, min(a) from t1m where a=99;
select 1, min(a) from t1m where 1=99;
select 1, min(1) from t1m where a=99;
select 1, min(1) from t1m where 1=99;
select 1, max(a) from t1m where a=99;
select 1, max(a) from t1m where 1=99;
select 1, max(1) from t1m where a=99;
select 1, max(1) from t1m where 1=99;
# test with InnoDB
select min(a) from t1i;
select min(7) from t1i;
select min(7);
explain select min(7) from t2i join t1i;
select min(7) from t2i join t1i;
select max(a) from t1i;
select max(7) from t1i;
select max(7);
explain select max(7) from t2i join t1i;
select max(7) from t2i join t1i;
select 1, min(a) from t1i where a=99;
select 1, min(a) from t1i where 1=99;
select 1, min(1) from t1i where a=99;
select 1, min(1) from t1i where 1=99;
select 1, max(a) from t1i where a=99;
select 1, max(a) from t1i where 1=99;
select 1, max(1) from t1i where a=99;
select 1, max(1) from t1i where 1=99;
# mixed MyISAM/InnoDB test
explain select count(*), min(7), max(7) from t1m, t1i;
select count(*), min(7), max(7) from t1m, t1i;
explain select count(*), min(7), max(7) from t1m, t2i;
select count(*), min(7), max(7) from t1m, t2i;
explain select count(*), min(7), max(7) from t2m, t1i;
select count(*), min(7), max(7) from t2m, t1i;
drop table t1m, t1i, t2m, t2i;
|