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
|
CREATE TABLE t1 (a INT)ENGINE=InnoDB;
INSERT INTO t1 VALUES(1);
SET alter_algorithm='INPLACE';
affected rows: 0
PREPARE stmt FROM 'ALTER TABLE t1 ADD KEY idx(a)';
affected rows: 0
info: Statement prepared
PREPARE stmt1 FROM 'ALTER TABLE t1 DROP KEY idx';
affected rows: 0
info: Statement prepared
CREATE OR REPLACE PROCEDURE p1()
BEGIN
ALTER TABLE t1 ADD KEY idx2(a);
END|
affected rows: 0
CREATE OR REPLACE PROCEDURE p2()
BEGIN
ALTER TABLE t1 DROP KEY idx2;
END|
affected rows: 0
SET alter_algorithm='COPY';
affected rows: 0
EXECUTE stmt;
affected rows: 1
info: Records: 1 Duplicates: 0 Warnings: 0
EXECUTE stmt1;
affected rows: 1
info: Records: 1 Duplicates: 0 Warnings: 0
call p1();
affected rows: 1
call p2();
affected rows: 1
SET alter_algorithm='NOCOPY';
affected rows: 0
EXECUTE stmt;
affected rows: 0
info: Records: 0 Duplicates: 0 Warnings: 0
EXECUTE stmt1;
affected rows: 0
info: Records: 0 Duplicates: 0 Warnings: 0
call p1();
affected rows: 0
call p2();
affected rows: 0
SET alter_algorithm='INSTANT';
affected rows: 0
EXECUTE stmt;
ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: ADD INDEX. Try ALGORITHM=NOCOPY
call p1();
ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: ADD INDEX. Try ALGORITHM=NOCOPY
DROP TABLE t1;
affected rows: 0
DROP PROCEDURE p1;
affected rows: 0
DROP PROCEDURE p2;
affected rows: 0
CREATE TABLE t1(id INT PRIMARY KEY,
col1 INT UNSIGNED NOT NULL UNIQUE)ENGINE=InnoDB;
affected rows: 0
INSERT INTO t1 VALUES(1,1),(2,2),(3,3);
affected rows: 3
info: Records: 3 Duplicates: 0 Warnings: 0
SET ALTER_ALGORITHM=INSTANT;
affected rows: 0
ALTER TABLE t1 DROP COLUMN col1;
ERROR 0A000: ALGORITHM=INSTANT is not supported for this operation. Try ALGORITHM=INPLACE
ALTER TABLE t1 DROP COLUMN col1, ALGORITHM=NOCOPY;
ERROR 0A000: ALGORITHM=NOCOPY is not supported for this operation. Try ALGORITHM=INPLACE
ALTER TABLE t1 DROP COLUMN col1, ALGORITHM=DEFAULT;
affected rows: 0
info: Records: 0 Duplicates: 0 Warnings: 0
ALTER TABLE t1 DROP PRIMARY KEY, ALGORITHM=DEFAULT;
affected rows: 3
info: Records: 3 Duplicates: 0 Warnings: 0
DROP TABLE t1;
affected rows: 0
|
