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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
#
# Testing sequence in DEFAULT clause
#
--source include/have_sequence.inc
drop table if exists t1,s1,s2;
drop view if exists v1;
--echo #
--echo # Test DEFAULT
--echo #
CREATE SEQUENCE s1 nocache engine=myisam;
CREATE table t1 (a int default next value for s1, b int);
show create table t1;
insert into t1 SET b=1;
insert into t1 SET b=2;
insert into t1 (b) values (3),(4);
select * from t1;
update t1 set b=5 where a=1;
delete from t1 where b=1;
select * from t1;
--echo #
--echo # Executing DEFAULT function
--echo #
INSERT into t1 values(default(a),10);
INSERT into t1 values(default(a),default(a));
update t1 set a=default(a), b=12 where b=2;
select * from t1;
select default(a), a, b from t1;
select * from s1;
select * from t1 where default(a) > 0;
select * from s1;
--echo #
--echo # View
--echo #
create view v1 as select * from t1;
insert into v1 set b=20;
select * from v1;
drop view v1;
--echo #
--echo # Alter table
--echo #
CREATE SEQUENCE s2 nocache engine=myisam;
alter table t1 add column c int default next value for s2, add column d int default previous value for s2;
show create table t1;
select * from t1;
drop sequence s2;
show create table t1;
drop table t1;
drop sequence s1;
--echo #
--echo # LOCK TABLES
--echo #
CREATE SEQUENCE s1 nocache engine=myisam;
CREATE table t1 (a int default next value for s1, b int);
insert into t1 (b) values (3),(4);
LOCK TABLE t1 WRITE;
--error ER_TABLE_NOT_LOCKED
insert into t1 (b) values (5),(6);
UNLOCK TABLES;
LOCK TABLE t1 WRITE, s1 WRITE;
insert into t1 (b) values (5),(6);
select default(a) from t1;
UNLOCK TABLES;
LOCK TABLE t1 READ;
--error ER_TABLE_NOT_LOCKED
insert into t1 (b) values (5),(6);
--error ER_TABLE_NOT_LOCKED
select default(a) from t1;
UNLOCK TABLES;
LOCK TABLE t1 READ, s1 read;
--error ER_TABLE_NOT_LOCKED_FOR_WRITE
insert into t1 (b) values (5),(6);
--error ER_TABLE_NOT_LOCKED_FOR_WRITE
select default(a) from t1;
UNLOCK TABLES;
drop table t1;
drop sequence s1;
--echo #
--echo # Testing prepared statements
--echo #
CREATE or replace SEQUENCE s1 nocache engine=myisam;
CREATE or replace table t1 (a int default next value for s1, b int);
PREPARE stmt FROM "insert into t1 (b) values(?)";
execute stmt using 1;
execute stmt using 2;
execute stmt using 3;
select * from t1;
drop table t1,s1;
deallocate prepare stmt;
--echo #
--echo # Wrong usage of default
--echo #
--error ER_NO_SUCH_TABLE
CREATE table t1 (a int default next value for s1, b int);
CREATE SEQUENCE s1 nocache engine=myisam;
CREATE table t1 (a int default next value for s1, b int);
DROP SEQUENCE s1;
--error ER_NO_SUCH_TABLE
insert into t1 (b) values (5),(6);
--error ER_NO_SUCH_TABLE
ALTER TABLE t1 add column c int;
CREATE SEQUENCE s1 nocache engine=myisam;
ALTER TABLE t1 add column c int;
--error ER_NO_SUCH_TABLE
ALTER TABLE t1 add column d int default next value for s_not_exits;
drop table t1;
drop sequence s1;
|