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
|
-- source include/have_innodb.inc
SET sql_mode='STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,SIMULTANEOUS_ASSIGNMENT';
--echo #
--echo # MDEV-13417 UPDATE produces wrong values if an UPDATEd column is later used as an UPDATE source
--echo #
CREATE TABLE t1 (c1 INTEGER, c2 INTEGER, c3 INTEGER) ENGINE=InnoDb;
INSERT INTO t1(c1,c2,c3) VALUES (1,1,1);
CREATE TABLE t2 (c1 INTEGER, c2 INTEGER, c3 INTEGER) ENGINE=InnoDb;
INSERT INTO t2(c1,c2,c3) VALUES (1,1,1);
--echo #
--echo # Check that a column is only updated once.
--echo #
--error ER_UPDATED_COLUMN_ONLY_ONCE
UPDATE t1
SET c1 = 1,
c1 = 2;
--error ER_UPDATED_COLUMN_ONLY_ONCE
UPDATE t1, t2
SET t1.c1 = t1.c1 + 1,
t1.c2 = t1.c1 + 1,
t2.c2 = t1.c2 + 1,
t2.c2 = t1.c2 + 1;
--echo #
--echo # Check standard update
--echo #
--disable_view_protocol
UPDATE t1
SET c1 = c1+1,
c2 = c1+1,
c3 = c2+1
WHERE c1=10;
START TRANSACTION;
UPDATE t1
SET c1 = c1+1,
c2 = c1+1,
c3 = c2+1;
SELECT * FROM t1;
ROLLBACK;
--enable_view_protocol
--echo #
--echo # Check update through a single view
--echo #
CREATE VIEW v1 (a, b) AS SELECT c1, c2 FROM t1;
--error ER_UPDATED_COLUMN_ONLY_ONCE
UPDATE v1
SET a = 10,
a = b+1;
SELECT * FROM t1;
DROP VIEW v1;
CREATE VIEW v1 (a, b) AS SELECT c2, c2 FROM t1;
--error ER_UPDATED_COLUMN_ONLY_ONCE
UPDATE v1
SET a = 10,
b = 20;
SELECT * FROM t1;
DROP VIEW v1;
--echo #
--echo # Check update through a multi table view
--echo #
CREATE VIEW v1 (a, b) AS SELECT t1.c1, t2.c1 FROM t1, t2 WHERE t1.c1=t2.c1;
--error ER_VIEW_MULTIUPDATE
UPDATE v1
SET a = 10,
b = 20;
--disable_view_protocol
START TRANSACTION;
UPDATE v1
SET a = 10;
ROLLBACK;
--error ER_UPDATED_COLUMN_ONLY_ONCE
UPDATE v1
SET a = 10,
a = a + 1;
DROP VIEW v1;
--echo #
--echo # Check multi update
--echo #
START TRANSACTION;
UPDATE t1, t2
SET t1.c1 = t1.c1 + 1,
t1.c2 = t1.c1 + 1,
t2.c2 = t1.c2 + 1,
t2.c3 = t2.c2 + 1
WHERE t1.c1=t2.c1;
SELECT * FROM t1;
SELECT * FROM t2;
ROLLBACK;
DELIMITER /;
CREATE TRIGGER tr1 BEFORE UPDATE ON t1 FOR EACH ROW
BEGIN
INSERT INTO t2 VALUES(10+old.c1,10+old.c2,10+old.c3);
INSERT INTO t2 VALUES(20+new.c1,10+new.c2,10+new.c3);
END;
/
DELIMITER ;/
START TRANSACTION;
UPDATE t1
SET c1 = c1+1,
c2 = c1+1,
c3 = c2+1;
SELECT * FROM t1;
SELECT * FROM t2;
ROLLBACK;
--enable_view_protocol
DROP TABLE t1;
DROP TABLE t2;
--echo #
--echo # Check update fired by INSERT ... ON DUPLICATE KEY UPDATE
--echo #
CREATE TABLE t1 (
id INT(11) NOT NULL AUTO_INCREMENT,
name VARCHAR(60) NOT NULL,
nb_visits INT NOT NULL,
nb_visits_prev INT NOT NULL default 0,
PRIMARY KEY (id),
UNIQUE KEY name (name)
) ENGINE=InnoDB AUTO_INCREMENT=1;
INSERT INTO t1(name, nb_visits) VALUES('nico', 1)
ON DUPLICATE KEY UPDATE nb_visits = nb_visits + 1;
SELECT * FROM t1;
INSERT INTO t1(name, nb_visits) VALUES('nico', 1)
ON DUPLICATE KEY UPDATE nb_visits = nb_visits + 1, nb_visits_prev=nb_visits;
SELECT * FROM t1;
DROP TABLE t1;
--echo #
--echo # Update table with virtual column
--echo #
CREATE TABLE t1 (c1 INTEGER, c2 INTEGER, c3 INTEGER AS (c1 MOD 10) VIRTUAL, c4 INTEGER AS (c1+c2 MOD 5) PERSISTENT ) ENGINE=InnoDb;
INSERT INTO t1(c1,c2) VALUES (1,1);
SELECT * FROM t1;
UPDATE t1 SET c2 = 10, c1 = c2;
SELECT * FROM t1;
UPDATE t1 SET c2 = 4, c1 = c2;
SELECT * FROM t1;
DROP TABLE t1;
--echo #
--echo # Update dynamic column
--echo #
SET @@local.character_set_connection='latin1';
CREATE TABLE assets (
item_name VARCHAR(32) PRIMARY KEY,
dynamic_col1 BLOB,
dynamic_col2 BLOB
);
INSERT INTO assets VALUES ('Thinkpad Laptop', COLUMN_CREATE('color', 'black', 'price', 500),COLUMN_CREATE('CPU', 'Core I7', 'memory', '8Go'));
INSERT INTO assets VALUES ('Thinkpad Laptop2', COLUMN_CREATE('color', 'yellow', 'price', 700),COLUMN_CREATE('CPU', 'Core I7', 'memory', '16Go'));
SELECT item_name, COLUMN_GET(dynamic_col1, 'color' as char) AS color1,
COLUMN_GET(dynamic_col2, 'color' as char) AS color2
FROM assets;
UPDATE assets
SET dynamic_col1=COLUMN_ADD(dynamic_col1, 'warranty', '3 years'),
dynamic_col2=dynamic_col1
WHERE item_name LIKE 'Thinkpad Laptop%';
SELECT item_name, COLUMN_GET(dynamic_col1, 'warranty' as char) AS waranty1,
COLUMN_GET(dynamic_col2, 'warranty' as char) AS waranty2,
COLUMN_GET(dynamic_col2, 'color' as char) AS color2
FROM assets;
DROP TABLE assets;
--echo #
--echo # Update TEXT column
--echo #
CREATE TABLE ft2(copy TEXT,copy2 TEXT,FULLTEXT(copy)) ENGINE=MyISAM;
INSERT INTO ft2(copy) VALUES
('MySQL vs MariaDB database'),
('Oracle vs MariaDB database'),
('PostgreSQL vs MariaDB database'),
('MariaDB overview'),
('Foreign keys'),
('Primary keys'),
('Indexes'),
('Transactions'),
('Triggers');
SELECT * FROM ft2;
UPDATE ft2 SET copy = UPPER(copy),
copy2= copy;
SELECT * FROM ft2;
DROP TABLE ft2;
|
