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
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
# include/deadlock.inc
#
# The variable
# $engine_type -- storage engine to be tested
# has to be set before sourcing this script.
#
# Last update:
# 2006-07-26 ML refactoring + print when connection is switched
# old name was t/innodb-deadlock.test
# main code went into include/deadlock.inc
#
--echo # Establish connection con1 (user=root)
connect (con1,localhost,root,,);
--echo # Establish connection con2 (user=root)
connect (con2,localhost,root,,);
--disable_warnings
drop table if exists t1,t2;
--enable_warnings
#
# Testing of FOR UPDATE
#
--echo # Switch to connection con1
connection con1;
eval create table t1 (id integer, x integer) engine = $engine_type;
insert into t1 values(0, 0);
set autocommit=0;
SELECT * from t1 where id = 0 FOR UPDATE;
--echo # Switch to connection con2
connection con2;
set autocommit=0;
# The following query should hang because con1 is locking the record
--send
update t1 set x=2 where id = 0;
--sleep 2
--echo # Switch to connection con1
connection con1;
update t1 set x=1 where id = 0;
select * from t1;
commit;
--echo # Switch to connection con2
connection con2;
reap;
commit;
--echo # Switch to connection con1
connection con1;
select * from t1;
commit;
drop table t1;
#
# Testing of FOR UPDATE
#
--echo # Switch to connection con1
connection con1;
eval create table t1 (id integer, x integer) engine = $engine_type;
eval create table t2 (b integer, a integer) engine = $engine_type;
insert into t1 values(0, 0), (300, 300);
insert into t2 values(0, 10), (1, 20), (2, 30);
commit;
set autocommit=0;
select * from t2;
update t2 set a=100 where b=(SELECT x from t1 where id = b FOR UPDATE);
select * from t2;
select * from t1;
--echo # Switch to connection con2
connection con2;
set autocommit=0;
# The following query should hang because con1 is locking the record
--send
update t1 set x=2 where id = 0;
--sleep 2
--echo # Switch to connection con1
connection con1;
update t1 set x=1 where id = 0;
select * from t1;
commit;
--echo # Switch to connection con2
connection con2;
reap;
commit;
--echo # Switch to connection con1
connection con1;
select * from t1;
commit;
drop table t1, t2;
eval create table t1 (id integer, x integer) engine = $engine_type;
eval create table t2 (b integer, a integer) engine = $engine_type;
insert into t1 values(0, 0), (300, 300);
insert into t2 values(0, 0), (1, 20), (2, 30);
commit;
--echo # Switch to connection con1
connection con1;
select a,b from t2 UNION SELECT id, x from t1 FOR UPDATE;
select * from t2;
select * from t1;
--echo # Switch to connection con2
connection con2;
# The following query should hang because con1 is locking the record
update t2 set a=2 where b = 0;
select * from t2;
--send
update t1 set x=2 where id = 0;
--sleep 2
--echo # Switch to connection con1
connection con1;
update t1 set x=1 where id = 0;
select * from t1;
commit;
--echo # Switch to connection con2
connection con2;
reap;
commit;
--echo # Switch to connection con1
connection con1;
select * from t1;
commit;
# Cleanup
--echo # Switch to connection default + disconnect con1 and con2
connection default;
disconnect con1;
disconnect con2;
drop table t1, t2;
--echo End of 4.1 tests
#
# Bug#25164 create table `a` as select * from `A` hangs
#
set storage_engine=innodb;
--disable_warnings
drop table if exists a;
drop table if exists A;
--enable_warnings
create table A (c int);
insert into A (c) values (0);
--error 0,ER_LOCK_DEADLOCK,ER_UPDATE_TABLE_USED
create table a as select * from A;
drop table A;
--disable_warnings
drop table if exists a;
--enable_warnings
set storage_engine=default;
--echo End of 5.0 tests.
|