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
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
|
drop table if exists t1,s1,s2;
Warnings:
Note 1051 Unknown table 'test.t1,test.s1,test.s2'
drop view if exists v1;
Warnings:
Note 4092 Unknown VIEW: 'test.v1'
#
# Test DEFAULT
#
CREATE SEQUENCE s1 nocache engine=myisam;
CREATE table t1 (a int default next value for s1, b int);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT nextval(`test`.`s1`),
`b` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
insert into t1 SET b=1;
insert into t1 SET b=2;
insert into t1 (b) values (3),(4);
select * from t1;
a b
1 1
2 2
3 3
4 4
update t1 set b=5 where a=1;
delete from t1 where b=1;
select * from t1;
a b
1 5
2 2
3 3
4 4
#
# Executing DEFAULT function
#
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;
a b
1 5
8 12
3 3
4 4
5 10
6 7
select default(a), a, b from t1;
default(a) a b
9 1 5
10 8 12
11 3 3
12 4 4
13 5 10
14 6 7
select * from s1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
15 1 9223372036854775806 1 1 0 0 0
select * from t1 where default(a) > 0;
a b
1 5
8 12
3 3
4 4
5 10
6 7
select * from s1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
16 1 9223372036854775806 1 1 0 0 0
#
# View
#
create view v1 as select * from t1;
insert into v1 set b=20;
select * from v1;
a b
1 5
8 12
3 3
4 4
5 10
6 7
16 20
drop view v1;
#
# Alter table
#
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;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT nextval(`test`.`s1`),
`b` int(11) DEFAULT NULL,
`c` int(11) DEFAULT nextval(`test`.`s2`),
`d` int(11) DEFAULT lastval(`test`.`s2`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
select * from t1;
a b c d
1 5 1 1
8 12 2 2
3 3 3 3
4 4 4 4
5 10 5 5
6 7 6 6
16 20 7 7
drop sequence s2;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT nextval(`test`.`s1`),
`b` int(11) DEFAULT NULL,
`c` int(11) DEFAULT nextval(`test`.`s2`),
`d` int(11) DEFAULT lastval(`test`.`s2`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
drop table t1;
drop sequence s1;
#
# LOCK TABLES
#
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;
insert into t1 (b) values (5),(6);
ERROR HY000: Table 's1' was not locked with LOCK TABLES
UNLOCK TABLES;
LOCK TABLE t1 WRITE, s1 WRITE;
insert into t1 (b) values (5),(6);
select default(a) from t1;
default(a)
5
6
7
8
UNLOCK TABLES;
LOCK TABLE t1 READ;
insert into t1 (b) values (5),(6);
ERROR HY000: Table 's1' was not locked with LOCK TABLES
select default(a) from t1;
ERROR HY000: Table 's1' was not locked with LOCK TABLES
UNLOCK TABLES;
LOCK TABLE t1 READ, s1 read;
insert into t1 (b) values (5),(6);
ERROR HY000: Table 't1' was locked with a READ lock and can't be updated
select default(a) from t1;
ERROR HY000: Table 's1' was locked with a READ lock and can't be updated
UNLOCK TABLES;
drop table t1;
drop sequence s1;
#
# Testing prepared statements
#
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;
a b
1 1
2 2
3 3
drop table t1,s1;
deallocate prepare stmt;
#
# Wrong usage of default
#
CREATE table t1 (a int default next value for s1, b int);
ERROR 42S02: Table 'test.s1' doesn't exist
CREATE SEQUENCE s1 nocache engine=myisam;
CREATE table t1 (a int default next value for s1, b int);
DROP SEQUENCE s1;
insert into t1 (b) values (5),(6);
ERROR 42S02: Table 'test.s1' doesn't exist
ALTER TABLE t1 add column c int;
ERROR 42S02: Table 'test.s1' doesn't exist
CREATE SEQUENCE s1 nocache engine=myisam;
ALTER TABLE t1 add column c int;
ALTER TABLE t1 add column d int default next value for s_not_exits;
ERROR 42S02: Table 'test.s_not_exits' doesn't exist
drop table t1;
drop sequence s1;
#
# MDEV 22785 Crash with prepared statements and NEXTVAL()
#
CREATE SEQUENCE s;
CREATE TABLE t1 (id int NOT NULL DEFAULT NEXTVAL(s), PRIMARY KEY (id));
PREPARE stmt FROM " INSERT INTO t1 () values ()";
INSERT INTO t1 () values ();
EXECUTE stmt;
DROP TABLE t1;
DROP SEQUENCE s;
#
# MDEV-29540 Incorrect sequence values in INSERT SELECT
#
CREATE SEQUENCE s1;
CREATE TABLE t1 (
a BIGINT UNSIGNED NOT NULL PRIMARY KEY
DEFAULT (NEXT VALUE FOR s1),
b CHAR(1) NOT NULL
);
INSERT INTO t1 (b) VALUES ('a');
INSERT INTO t1 (b) VALUES ('b'), ('c');
INSERT INTO t1 (b) VALUES ('d');
INSERT INTO t1 (b) SELECT c FROM (
SELECT 'e' as c
UNION
SELECT 'f'
UNION
SELECT 'g'
) der;
SELECT a, b FROM t1;
a b
1 a
2 b
3 c
4 d
5 e
6 f
7 g
ALTER SEQUENCE s1 RESTART;
INSERT INTO t1 (b) SELECT c FROM (
SELECT 'a' as c
UNION
SELECT 'b'
UNION
SELECT 'c'
UNION
SELECT 'd'
UNION
SELECT 'e'
UNION
SELECT 'f'
UNION
SELECT 'g'
) der;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
ALTER SEQUENCE s1 RESTART;
INSERT IGNORE INTO t1 (b) SELECT c FROM (
SELECT 'a' as c
UNION
SELECT 'b'
UNION
SELECT 'c'
UNION
SELECT 'd'
UNION
SELECT 'e'
UNION
SELECT 'f'
UNION
SELECT 'g'
) der;
Warnings:
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '2' for key 'PRIMARY'
Warning 1062 Duplicate entry '3' for key 'PRIMARY'
Warning 1062 Duplicate entry '4' for key 'PRIMARY'
Warning 1062 Duplicate entry '5' for key 'PRIMARY'
Warning 1062 Duplicate entry '6' for key 'PRIMARY'
Warning 1062 Duplicate entry '7' for key 'PRIMARY'
SELECT a, b FROM t1;
a b
1 a
2 b
3 c
4 d
5 e
6 f
7 g
INSERT IGNORE INTO t1 (b) SELECT c FROM (
SELECT 'h' as c
UNION
SELECT 'i'
UNION
SELECT 'j'
) der;
SELECT a, b FROM t1;
a b
1 a
2 b
3 c
4 d
5 e
6 f
7 g
8 h
9 i
10 j
DROP TABLE t1;
DROP SEQUENCE s1;
#
# End of 10.3 tests
#
|
