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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
|
drop table if exists t1,t2;
CREATE TABLE t1 ( `id` int(11) NOT NULL default '0', `id2` int(11) NOT NULL default '0', `id3` int(11) NOT NULL default '0', `dummy1` char(30) default NULL, PRIMARY KEY (`id`,`id2`), KEY `index_id3` (`id3`)) ENGINE=MyISAM;
insert into t1 (id,id2) values (1,1),(1,2),(1,3);
LOCK TABLE t1 WRITE;
select dummy1,count(distinct id) from t1 group by dummy1;
dummy1 count(distinct id)
NULL 1
update t1 set id=-1 where id=1;
LOCK TABLE t1 READ;
update t1 set id=1 where id=1;
ERROR HY000: Table 't1' was locked with a READ lock and can't be updated
create table t2 SELECT * from t1;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
create temporary table t2 SELECT * from t1;
drop table if exists t2;
unlock tables;
create table t2 SELECT * from t1;
LOCK TABLE t1 WRITE,t2 write;
insert into t2 SELECT * from t1;
update t1 set id=1 where id=-1;
drop table t1,t2;
CREATE TABLE t1 (
index1 smallint(6) default NULL,
nr smallint(6) default NULL,
KEY index1(index1)
) ENGINE=MyISAM;
CREATE TABLE t2 (
nr smallint(6) default NULL,
name varchar(20) default NULL
) ENGINE=MyISAM;
INSERT INTO t2 VALUES (1,'item1');
INSERT INTO t2 VALUES (2,'item2');
lock tables t1 write, t2 read;
insert into t1 select 1,nr from t2 where name='item1';
insert into t1 select 2,nr from t2 where name='item2';
unlock tables;
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
lock tables t1 write;
check table t2;
Table Op Msg_type Msg_text
test.t2 check Error Table 't2' was not locked with LOCK TABLES
test.t2 check error Corrupt
insert into t1 select index1,nr from t1;
ERROR HY000: Table 't1' was not locked with LOCK TABLES
unlock tables;
lock tables t1 write, t1 as t1_alias read;
insert into t1 select index1,nr from t1 as t1_alias;
drop table t1,t2;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
unlock tables;
drop table t1,t2;
create table t1 (c1 int);
create table t2 (c1 int);
create table t3 (c1 int);
lock tables t1 write, t2 write, t3 write;
drop table t2, t3, t1;
create table t1 (c1 int);
create table t2 (c1 int);
create table t3 (c1 int);
lock tables t1 write, t2 write, t3 write, t1 as t4 read;
alter table t2 add column c2 int;
drop table t1, t2, t3;
create table t1 ( a int(11) not null auto_increment, primary key(a));
create table t2 ( a int(11) not null auto_increment, primary key(a));
lock tables t1 write, t2 read;
delete from t1 using t1,t2 where t1.a=t2.a;
delete t1 from t1,t2 where t1.a=t2.a;
delete from t2 using t1,t2 where t1.a=t2.a;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
delete t2 from t1,t2 where t1.a=t2.a;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
drop table t1,t2;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
unlock tables;
drop table t2,t1;
End of 4.1 tests.
drop table if exists t1;
create table t1 (a int);
lock table t1 write;
flush tables with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
unlock tables;
drop table t1;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (i INT);
LOCK TABLES mysql.time_zone READ, mysql.proc READ, t1 READ;
UNLOCK TABLES;
LOCK TABLES mysql.time_zone READ, mysql.proc READ, t1 WRITE;
UNLOCK TABLES;
LOCK TABLES mysql.time_zone READ, mysql.proc READ;
UNLOCK TABLES;
LOCK TABLES mysql.time_zone WRITE, mysql.proc WRITE;
UNLOCK TABLES;
LOCK TABLES mysql.time_zone READ, mysql.proc WRITE, t1 READ;
ERROR HY000: You can't combine write-locking of system tables with other tables or lock types
LOCK TABLES mysql.time_zone WRITE, mysql.proc WRITE, t1 READ;
ERROR HY000: You can't combine write-locking of system tables with other tables or lock types
LOCK TABLES mysql.time_zone WRITE, mysql.proc WRITE, t1 WRITE;
ERROR HY000: You can't combine write-locking of system tables with other tables or lock types
LOCK TABLES mysql.time_zone READ, mysql.proc WRITE;
ERROR HY000: You can't combine write-locking of system tables with other tables or lock types
DROP TABLE t1;
Bug#5719 impossible to lock VIEW
Just covering existing behaviour with tests.
Consistency has not been found here.
drop view if exists v_bug5719;
drop table if exists t1, t2, t3;
create table t1 (a int);
create temporary table t2 (a int);
create table t3 (a int);
create view v_bug5719 as select 1;
lock table v_bug5719 write;
select * from t1;
ERROR HY000: Table 't1' was not locked with LOCK TABLES
Allowed to select from a temporary talbe under LOCK TABLES
select * from t2;
a
select * from t3;
ERROR HY000: Table 't3' was not locked with LOCK TABLES
select * from v_bug5719;
1
1
drop view v_bug5719;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
sic: did not left LOCK TABLES mode automatically
select * from t1;
ERROR HY000: Table 't1' was not locked with LOCK TABLES
unlock tables;
create or replace view v_bug5719 as select * from t1;
lock tables v_bug5719 write;
select * from v_bug5719;
a
Allowed to use an underlying table under LOCK TABLES <view>
select * from t1;
a
Allowed to select from a temporary table under LOCK TABLES
select * from t2;
a
select * from t3;
ERROR HY000: Table 't3' was not locked with LOCK TABLES
drop table t1;
sic: left LOCK TABLES mode
select * from t3;
a
select * from v_bug5719;
ERROR HY000: View 'test.v_bug5719' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
unlock tables;
drop view v_bug5719;
When limitation to use temporary tables in views is removed, please
add a test that shows what happens under LOCK TABLES when a view
references a temporary table, is locked, and the underlying table
is dropped.
create view v_bug5719 as select * from t2;
ERROR HY000: View's SELECT refers to a temporary table 't2'
Cleanup.
drop table t2, t3;
#
# Bug#39843 DELETE requires write access to table in subquery in where clause
#
DROP TABLE IF EXISTS t1,t2;
CREATE TABLE t1 (
table1_rowid SMALLINT NOT NULL
);
CREATE TABLE t2 (
table2_rowid SMALLINT NOT NULL
);
INSERT INTO t1 VALUES (1);
INSERT INTO t2 VALUES (1);
LOCK TABLES t1 WRITE, t2 READ;
# Sub-select should not try to aquire a write lock.
DELETE FROM t1
WHERE EXISTS
(
SELECT 'x'
FROM t2
WHERE t1.table1_rowid = t2.table2_rowid
) ;
# While implementing the patch we didn't break old behavior;
# The following sub-select should still requires a write lock:
SELECT * FROM t1 WHERE 1 IN (SELECT * FROM t2 FOR UPDATE);
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
UNLOCK TABLES;
DROP TABLE t1,t2;
End of 5.1 tests.
#
# Ensure that FLUSH TABLES doesn't substitute a base locked table
# with a temporary one.
#
drop table if exists t1, t2;
create table t1 (a int);
create table t2 (a int);
lock table t1 write, t2 write;
create temporary table t1 (a int);
flush table t1;
drop temporary table t1;
select * from t1;
a
unlock tables;
drop table t1, t2;
#
# Ensure that REPAIR .. USE_FRM works under LOCK TABLES.
#
drop table if exists t1, t2;
create table t1 (a int);
create table t2 (a int);
lock table t1 write, t2 write;
repair table t1 use_frm;
Table Op Msg_type Msg_text
test.t1 repair status OK
repair table t1 use_frm;
Table Op Msg_type Msg_text
test.t1 repair status OK
select * from t1;
a
select * from t2;
a
repair table t2 use_frm;
Table Op Msg_type Msg_text
test.t2 repair status OK
repair table t2 use_frm;
Table Op Msg_type Msg_text
test.t2 repair status OK
select * from t1;
a
unlock tables;
drop table t1, t2;
#
# Ensure that mi_copy_status is called for two instances
# of the same table when it is reopened after a flush.
#
drop table if exists t1;
drop view if exists v1;
create table t1 (c1 int);
create view v1 as select * from t1;
lock tables t1 write, v1 write;
flush table t1;
insert into t1 values (33);
flush table t1;
select * from t1;
c1
33
unlock tables;
drop table t1;
drop view v1;
#
# End of 6.0 tests.
#
|
