12
12
add column col4_5 varchar(20) not null after col4,
13
13
add column col7 varchar(30) not null after col5,
14
add column col8 datetime not null default '1000-01-01 00:00:00', drop column to_be_deleted,
14
add column col8 datetime not null, drop column to_be_deleted,
15
15
change column col2 fourth varchar(30) not null after col3,
16
16
modify column col6 int not null first;
18
18
col6 col1 col3 fourth col4 col4_5 col5 col7 col8
19
1 2 3 4 5 PENDING 1000-01-01 00:00:00
19
1 2 3 4 5 PENDING 0000-00-00 00:00:00
21
create table t1 (bandID INT NOT NULL PRIMARY KEY, payoutID int NOT NULL);
21
create table t1 (bandID MEDIUMINT UNSIGNED NOT NULL PRIMARY KEY, payoutID SMALLINT UNSIGNED NOT NULL);
22
22
insert into t1 (bandID,payoutID) VALUES (1,6),(2,6),(3,4),(4,9),(5,10),(6,1),(7,12),(8,12);
23
alter table t1 add column new_col int;
23
alter table t1 add column new_col int, order by payoutid,bandid;
25
25
bandID payoutID new_col
34
alter table t1 order by bandid,payoutid;
36
36
bandID payoutID new_col
69
CREATE TEMPORARY TABLE t1 (
70
id int NOT NULL default '0',
71
category_id int NOT NULL default '0',
72
type_id int NOT NULL default '0',
70
id int(11) unsigned NOT NULL default '0',
71
category_id tinyint(4) unsigned NOT NULL default '0',
72
type_id tinyint(4) unsigned NOT NULL default '0',
73
73
body text NOT NULL,
74
user_id int NOT NULL default '0',
74
user_id int(11) unsigned NOT NULL default '0',
75
75
status enum('new','old') NOT NULL default 'new',
78
78
ALTER TABLE t1 ORDER BY t1.id, t1.status, t1.type_id, t1.user_id, t1.body;
80
create table t1 (i int not null auto_increment primary key);
80
CREATE TABLE t1 (AnamneseId int(10) unsigned NOT NULL auto_increment,B BLOB,PRIMARY KEY (AnamneseId)) engine=myisam;
81
insert into t1 values (null,"hello");
83
ALTER TABLE t1 ADD Column new_col int not null;
86
Table Op Msg_type Msg_text
87
test.t1 optimize status OK
89
create table t1 (i int unsigned not null auto_increment primary key);
81
90
insert into t1 values (null),(null),(null),(null);
82
alter table t1 drop i,add i int not null auto_increment, drop primary key, add primary key (i);
91
alter table t1 drop i,add i int unsigned not null auto_increment, drop primary key, add primary key (i);
114
123
key (n2, n3, n4, n1),
115
124
key (n3, n4, n1, n2),
116
125
key (n4, n1, n2, n3) );
126
alter table t1 disable keys;
118
127
show keys from t1;
119
Table Unique Key_name Seq_in_index Column_name
128
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
129
t1 0 n1 1 n1 A 0 NULL NULL BTREE
130
t1 1 n1_2 1 n1 A NULL NULL NULL BTREE disabled
131
t1 1 n1_2 2 n2 A NULL NULL NULL YES BTREE disabled
132
t1 1 n1_2 3 n3 A NULL NULL NULL YES BTREE disabled
133
t1 1 n1_2 4 n4 A NULL NULL NULL YES BTREE disabled
134
t1 1 n2 1 n2 A NULL NULL NULL YES BTREE disabled
135
t1 1 n2 2 n3 A NULL NULL NULL YES BTREE disabled
136
t1 1 n2 3 n4 A NULL NULL NULL YES BTREE disabled
137
t1 1 n2 4 n1 A NULL NULL NULL BTREE disabled
138
t1 1 n3 1 n3 A NULL NULL NULL YES BTREE disabled
139
t1 1 n3 2 n4 A NULL NULL NULL YES BTREE disabled
140
t1 1 n3 3 n1 A NULL NULL NULL BTREE disabled
141
t1 1 n3 4 n2 A NULL NULL NULL YES BTREE disabled
142
t1 1 n4 1 n4 A NULL NULL NULL YES BTREE disabled
143
t1 1 n4 2 n1 A NULL NULL NULL BTREE disabled
144
t1 1 n4 3 n2 A NULL NULL NULL YES BTREE disabled
145
t1 1 n4 4 n3 A NULL NULL NULL YES BTREE disabled
139
146
insert into t1 values(10,RAND()*1000,RAND()*1000,RAND());
140
147
insert into t1 values(9,RAND()*1000,RAND()*1000,RAND());
141
148
insert into t1 values(8,RAND()*1000,RAND()*1000,RAND());
146
153
insert into t1 values(3,RAND()*1000,RAND()*1000,RAND());
147
154
insert into t1 values(2,RAND()*1000,RAND()*1000,RAND());
148
155
insert into t1 values(1,RAND()*1000,RAND()*1000,RAND());
151
156
alter table t1 enable keys;
153
Note 1031 Table storage engine for 't1' doesn't have this option
154
157
show keys from t1;
155
Table Unique Key_name Seq_in_index Column_name
158
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
159
t1 0 n1 1 n1 A 10 NULL NULL BTREE
160
t1 1 n1_2 1 n1 A 10 NULL NULL BTREE
161
t1 1 n1_2 2 n2 A 10 NULL NULL YES BTREE
162
t1 1 n1_2 3 n3 A 10 NULL NULL YES BTREE
163
t1 1 n1_2 4 n4 A 10 NULL NULL YES BTREE
164
t1 1 n2 1 n2 A 10 NULL NULL YES BTREE
165
t1 1 n2 2 n3 A 10 NULL NULL YES BTREE
166
t1 1 n2 3 n4 A 10 NULL NULL YES BTREE
167
t1 1 n2 4 n1 A 10 NULL NULL BTREE
168
t1 1 n3 1 n3 A 10 NULL NULL YES BTREE
169
t1 1 n3 2 n4 A 10 NULL NULL YES BTREE
170
t1 1 n3 3 n1 A 10 NULL NULL BTREE
171
t1 1 n3 4 n2 A 10 NULL NULL YES BTREE
172
t1 1 n4 1 n4 A 10 NULL NULL YES BTREE
173
t1 1 n4 2 n1 A 10 NULL NULL BTREE
174
t1 1 n4 3 n2 A 10 NULL NULL YES BTREE
175
t1 1 n4 4 n3 A 10 NULL NULL YES BTREE
174
create table t1 (i int not null auto_increment primary key);
177
create table t1 (i int unsigned not null auto_increment primary key);
175
178
alter table t1 rename t2;
176
179
alter table t2 rename t1, add c char(10) comment "no comment";
177
180
show columns from t1;
178
Field Type Null Default Default_is_NULL On_Update
181
Field Type Null Key Default Extra
182
i int(10) unsigned NO PRI NULL auto_increment
182
185
create table t1 (a int, b int);
185
186
insert into t1 values(1,100), (2,100), (3, 100);
186
187
insert into t1 values(1,99), (2,99), (3, 99);
187
188
insert into t1 values(1,98), (2,98), (3, 98);
282
283
insert into t1 values(1,3), (2,3), (3, 3);
283
284
insert into t1 values(1,2), (2,2), (3, 2);
284
285
insert into t1 values(1,1), (2,1), (3, 1);
287
286
alter table t1 add unique (a,b), add key (b);
288
287
show keys from t1;
289
Table Unique Key_name Seq_in_index Column_name
288
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
289
t1 0 a 1 a A NULL NULL NULL YES BTREE
290
t1 0 a 2 b A NULL NULL NULL YES BTREE
291
t1 1 b 1 b A 100 NULL NULL YES BTREE
293
292
analyze table t1;
294
293
Table Op Msg_type Msg_text
295
294
test.t1 analyze status OK
296
295
show keys from t1;
297
Table Unique Key_name Seq_in_index Column_name
302
CREATE TEMPORARY TABLE t1 (
303
Host varchar(16) NOT NULL default '',
304
User varchar(16) NOT NULL default '',
296
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
297
t1 0 a 1 a A 3 NULL NULL YES BTREE
298
t1 0 a 2 b A 300 NULL NULL YES BTREE
299
t1 1 b 1 b A 100 NULL NULL YES BTREE
301
CREATE TABLE t1 (i int(10), index(i) );
302
ALTER TABLE t1 DISABLE KEYS;
303
INSERT DELAYED INTO t1 VALUES(1),(2),(3);
304
ALTER TABLE t1 ENABLE KEYS;
307
Host varchar(16) binary NOT NULL default '',
308
User varchar(16) binary NOT NULL default '',
309
PRIMARY KEY (Host,User)
311
ALTER TABLE t1 DISABLE KEYS;
312
LOCK TABLES t1 WRITE;
313
INSERT INTO t1 VALUES ('localhost','root'),('localhost',''),('games','monty');
315
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
316
t1 0 PRIMARY 1 Host A NULL NULL NULL BTREE
317
t1 0 PRIMARY 2 User A 0 NULL NULL BTREE
318
ALTER TABLE t1 ENABLE KEYS;
321
Table Op Msg_type Msg_text
322
test.t1 check status OK
325
Host varchar(16) binary NOT NULL default '',
326
User varchar(16) binary NOT NULL default '',
305
327
PRIMARY KEY (Host,User),
308
330
ALTER TABLE t1 DISABLE KEYS;
332
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
333
t1 0 PRIMARY 1 Host A NULL NULL NULL BTREE
334
t1 0 PRIMARY 2 User A 0 NULL NULL BTREE
335
t1 1 Host 1 Host A NULL NULL NULL BTREE disabled
336
LOCK TABLES t1 WRITE;
309
337
INSERT INTO t1 VALUES ('localhost','root'),('localhost','');
339
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
340
t1 0 PRIMARY 1 Host A NULL NULL NULL BTREE
341
t1 0 PRIMARY 2 User A 0 NULL NULL BTREE
342
t1 1 Host 1 Host A NULL NULL NULL BTREE disabled
310
343
ALTER TABLE t1 ENABLE KEYS;
345
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
346
t1 0 PRIMARY 1 Host A NULL NULL NULL BTREE
347
t1 0 PRIMARY 2 User A 2 NULL NULL BTREE
348
t1 1 Host 1 Host A 1 NULL NULL BTREE
312
351
Table Op Msg_type Msg_text
313
352
test.t1 check status OK
353
LOCK TABLES t1 WRITE;
314
354
ALTER TABLE t1 RENAME t2;
315
356
select * from t2;
362
Host varchar(16) binary NOT NULL default '',
363
User varchar(16) binary NOT NULL default '',
364
PRIMARY KEY (Host,User),
367
LOCK TABLES t1 WRITE;
368
ALTER TABLE t1 DISABLE KEYS;
370
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
371
t1 0 PRIMARY 1 Host A NULL NULL NULL BTREE
372
t1 0 PRIMARY 2 User A 0 NULL NULL BTREE
373
t1 1 Host 1 Host A NULL NULL NULL BTREE disabled
320
375
create table t1 (a int);
321
376
alter table t1 rename to ``;
322
377
ERROR 42000: Incorrect table name ''
326
381
drop table if exists t1;
328
383
Note 1051 Unknown table 't1'
329
create TEMPORARY table t1 ( a varchar(10) not null primary key ) engine=myisam;
384
create table t1 ( a varchar(10) not null primary key ) engine=myisam;
331
386
alter table t1 modify a varchar(10);
333
388
alter table t1 modify a varchar(10) not null;
334
389
drop table if exists t1;
335
create TEMPORARY table t1 (a int, b int, c int, d int, e int, f int, g int, h int,i int, primary key (a,b,c,d,e,f,g,i,h)) engine=MyISAM;
336
insert into t1 (a,b,c,d,e,f,g,h,i) values(1,1,1,1,1,1,1,1,1);
390
create table t1 (a int, b int, c int, d int, e int, f int, g int, h int,i int, primary key (a,b,c,d,e,f,g,i,h)) engine=MyISAM;
391
insert into t1 (a) values(1);
337
392
show table status like 't1';
338
Session Schema Name Type Engine Version Rows Avg_row_length Table_size Auto_increment
339
# test t1 TEMPORARY MyISAM # # # # #
393
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
394
t1 MyISAM 10 Fixed 1 37 X X X X X X X X latin1_swedish_ci NULL
340
395
alter table t1 modify a int;
341
396
show table status like 't1';
342
Session Schema Name Type Engine Version Rows Avg_row_length Table_size Auto_increment
343
# test t1 TEMPORARY MyISAM # # # # #
397
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
398
t1 MyISAM 10 Fixed 1 37 X X X X X X X X latin1_swedish_ci NULL
345
create TEMPORARY table t1 (a int not null default 0, b int not null default 0, c int not null default 0, d int not null default 0, e int not null default 0, f int not null default 0, g int not null default 0, h int not null default 0,i int not null default 0, primary key (a,b,c,d,e,f,g,i,h)) engine=MyISAM;
400
create table t1 (a int not null, b int not null, c int not null, d int not null, e int not null, f int not null, g int not null, h int not null,i int not null, primary key (a,b,c,d,e,f,g,i,h)) engine=MyISAM;
346
401
insert into t1 (a) values(1);
403
Warning 1364 Field 'b' doesn't have a default value
404
Warning 1364 Field 'c' doesn't have a default value
405
Warning 1364 Field 'd' doesn't have a default value
406
Warning 1364 Field 'e' doesn't have a default value
407
Warning 1364 Field 'f' doesn't have a default value
408
Warning 1364 Field 'g' doesn't have a default value
409
Warning 1364 Field 'h' doesn't have a default value
410
Warning 1364 Field 'i' doesn't have a default value
347
411
show table status like 't1';
348
Session Schema Name Type Engine Version Rows Avg_row_length Table_size Auto_increment
349
# test t1 TEMPORARY MyISAM # # # # #
412
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
413
t1 MyISAM 10 Fixed 1 37 X X X X X X X X latin1_swedish_ci NULL
416
create table t1 (a char(10) character set koi8r);
417
insert into t1 values ('����');
418
select a,hex(a) from t1;
421
alter table t1 change a a char(10) character set cp1251;
422
select a,hex(a) from t1;
425
alter table t1 change a a binary(4);
426
select a,hex(a) from t1;
429
alter table t1 change a a char(10) character set cp1251;
430
select a,hex(a) from t1;
433
alter table t1 change a a char(10) character set koi8r;
434
select a,hex(a) from t1;
437
alter table t1 change a a varchar(10) character set cp1251;
438
select a,hex(a) from t1;
441
alter table t1 change a a char(10) character set koi8r;
442
select a,hex(a) from t1;
445
alter table t1 change a a text character set cp1251;
446
select a,hex(a) from t1;
449
alter table t1 change a a char(10) character set koi8r;
450
select a,hex(a) from t1;
454
show create table t1;
456
t1 CREATE TABLE `t1` (
457
`a` char(10) CHARACTER SET koi8r DEFAULT NULL
458
) ENGINE=MyISAM DEFAULT CHARSET=latin1
459
alter table t1 DEFAULT CHARACTER SET latin1;
460
show create table t1;
462
t1 CREATE TABLE `t1` (
463
`a` char(10) CHARACTER SET koi8r DEFAULT NULL
464
) ENGINE=MyISAM DEFAULT CHARSET=latin1
465
alter table t1 CONVERT TO CHARACTER SET latin1;
466
show create table t1;
468
t1 CREATE TABLE `t1` (
469
`a` char(10) DEFAULT NULL
470
) ENGINE=MyISAM DEFAULT CHARSET=latin1
471
alter table t1 DEFAULT CHARACTER SET cp1251;
472
show create table t1;
474
t1 CREATE TABLE `t1` (
475
`a` char(10) CHARACTER SET latin1 DEFAULT NULL
476
) ENGINE=MyISAM DEFAULT CHARSET=cp1251
478
create table t1 (myblob longblob,mytext longtext)
479
default charset latin1 collate latin1_general_cs;
480
show create table t1;
482
t1 CREATE TABLE `t1` (
484
`mytext` longtext COLLATE latin1_general_cs
485
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_cs
486
alter table t1 character set latin2;
487
show create table t1;
489
t1 CREATE TABLE `t1` (
491
`mytext` longtext CHARACTER SET latin1 COLLATE latin1_general_cs
492
) ENGINE=MyISAM DEFAULT CHARSET=latin2
351
494
CREATE TABLE t1 (a int PRIMARY KEY, b INT UNIQUE);
352
495
ALTER TABLE t1 DROP PRIMARY KEY;
353
496
SHOW CREATE TABLE t1;
354
497
Table Create Table
355
498
t1 CREATE TABLE `t1` (
357
`b` INT DEFAULT NULL,
499
`a` int(11) NOT NULL,
500
`b` int(11) DEFAULT NULL,
358
501
UNIQUE KEY `b` (`b`)
359
) ENGINE=DEFAULT COLLATE = utf8_general_ci
502
) ENGINE=MyISAM DEFAULT CHARSET=latin1
360
503
ALTER TABLE t1 DROP PRIMARY KEY;
361
504
ERROR 42000: Can't DROP 'PRIMARY'; check that column/key exists
377
530
drop table if exists t1;
378
531
create table t1 (a int, key(a));
379
532
show indexes from t1;
380
Table Unique Key_name Seq_in_index Column_name
533
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
534
t1 1 a 1 a A NULL NULL NULL YES BTREE
382
535
"this used not to disable the index"
383
alter table t1 modify a int;
384
show indexes from t1;
385
Table Unique Key_name Seq_in_index Column_name
387
alter table t1 enable keys;
389
Note 1031 Table storage engine for 't1' doesn't have this option
390
show indexes from t1;
391
Table Unique Key_name Seq_in_index Column_name
393
alter table t1 modify a bigint;
394
show indexes from t1;
395
Table Unique Key_name Seq_in_index Column_name
397
alter table t1 enable keys;
399
Note 1031 Table storage engine for 't1' doesn't have this option
400
show indexes from t1;
401
Table Unique Key_name Seq_in_index Column_name
403
alter table t1 add b char(10);
404
show indexes from t1;
405
Table Unique Key_name Seq_in_index Column_name
407
alter table t1 add c decimal(10,2);
408
show indexes from t1;
409
Table Unique Key_name Seq_in_index Column_name
536
alter table t1 modify a int, disable keys;
537
show indexes from t1;
538
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
539
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
540
alter table t1 enable keys;
541
show indexes from t1;
542
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
543
t1 1 a 1 a A NULL NULL NULL YES BTREE
544
alter table t1 modify a bigint, disable keys;
545
show indexes from t1;
546
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
547
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
548
alter table t1 enable keys;
549
show indexes from t1;
550
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
551
t1 1 a 1 a A NULL NULL NULL YES BTREE
552
alter table t1 add b char(10), disable keys;
553
show indexes from t1;
554
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
555
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
556
alter table t1 add c decimal(10,2), enable keys;
557
show indexes from t1;
558
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
559
t1 1 a 1 a A NULL NULL NULL YES BTREE
411
560
"this however did"
561
alter table t1 disable keys;
413
562
show indexes from t1;
414
Table Unique Key_name Seq_in_index Column_name
563
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
564
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
417
Field Type Null Default Default_is_NULL On_Update
566
Field Type Null Key Default Extra
567
a bigint(20) YES MUL NULL
569
c decimal(10,2) YES NULL
421
570
alter table t1 add d decimal(15,5);
422
571
"The key should still be disabled"
423
572
show indexes from t1;
424
Table Unique Key_name Seq_in_index Column_name
573
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
574
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
427
576
"Now will test with one unique index"
428
577
create table t1(a int, b char(10), unique(a));
429
578
show indexes from t1;
430
Table Unique Key_name Seq_in_index Column_name
579
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
580
t1 0 a 1 a A NULL NULL NULL YES BTREE
581
alter table t1 disable keys;
433
582
show indexes from t1;
434
Table Unique Key_name Seq_in_index Column_name
583
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
584
t1 0 a 1 a A NULL NULL NULL YES BTREE
436
585
alter table t1 enable keys;
438
Note 1031 Table storage engine for 't1' doesn't have this option
439
586
"If no copy on noop change, this won't touch the data file"
440
587
"Unique index, no change"
441
alter table t1 modify a int;
588
alter table t1 modify a int, disable keys;
442
589
show indexes from t1;
443
Table Unique Key_name Seq_in_index Column_name
590
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
591
t1 0 a 1 a A NULL NULL NULL YES BTREE
445
592
"Change the type implying data copy"
446
593
"Unique index, no change"
447
alter table t1 modify a bigint;
448
show indexes from t1;
449
Table Unique Key_name Seq_in_index Column_name
451
alter table t1 modify a bigint;
452
show indexes from t1;
453
Table Unique Key_name Seq_in_index Column_name
594
alter table t1 modify a bigint, disable keys;
595
show indexes from t1;
596
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
597
t1 0 a 1 a A NULL NULL NULL YES BTREE
598
alter table t1 modify a bigint;
599
show indexes from t1;
600
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
601
t1 0 a 1 a A NULL NULL NULL YES BTREE
455
602
alter table t1 modify a int;
456
603
show indexes from t1;
457
Table Unique Key_name Seq_in_index Column_name
604
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
605
t1 0 a 1 a A NULL NULL NULL YES BTREE
460
607
"Now will test with one unique and one non-unique index"
461
608
create table t1(a int, b char(10), unique(a), key(b));
462
609
show indexes from t1;
463
Table Unique Key_name Seq_in_index Column_name
610
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
611
t1 0 a 1 a A NULL NULL NULL YES BTREE
612
t1 1 b 1 b A NULL NULL NULL YES BTREE
613
alter table t1 disable keys;
467
614
show indexes from t1;
468
Table Unique Key_name Seq_in_index Column_name
615
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
616
t1 0 a 1 a A NULL NULL NULL YES BTREE
617
t1 1 b 1 b A NULL NULL NULL YES BTREE disabled
471
618
alter table t1 enable keys;
473
Note 1031 Table storage engine for 't1' doesn't have this option
474
619
"If no copy on noop change, this won't touch the data file"
475
620
"The non-unique index will be disabled"
476
alter table t1 modify a int;
621
alter table t1 modify a int, disable keys;
477
622
show indexes from t1;
478
Table Unique Key_name Seq_in_index Column_name
623
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
624
t1 0 a 1 a A NULL NULL NULL YES BTREE
625
t1 1 b 1 b A NULL NULL NULL YES BTREE disabled
481
626
alter table t1 enable keys;
483
Note 1031 Table storage engine for 't1' doesn't have this option
484
627
show indexes from t1;
485
Table Unique Key_name Seq_in_index Column_name
628
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
629
t1 0 a 1 a A NULL NULL NULL YES BTREE
630
t1 1 b 1 b A NULL NULL NULL YES BTREE
488
631
"Change the type implying data copy"
489
632
"The non-unique index will be disabled"
490
alter table t1 modify a bigint;
633
alter table t1 modify a bigint, disable keys;
491
634
show indexes from t1;
492
Table Unique Key_name Seq_in_index Column_name
635
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
636
t1 0 a 1 a A NULL NULL NULL YES BTREE
637
t1 1 b 1 b A NULL NULL NULL YES BTREE disabled
495
638
"Change again the type, but leave the indexes as_is"
496
639
alter table t1 modify a int;
497
640
show indexes from t1;
498
Table Unique Key_name Seq_in_index Column_name
641
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
642
t1 0 a 1 a A NULL NULL NULL YES BTREE
643
t1 1 b 1 b A NULL NULL NULL YES BTREE disabled
501
644
"Try the same. When data is no copied on similar tables, this is noop"
502
645
alter table t1 modify a int;
503
646
show indexes from t1;
504
Table Unique Key_name Seq_in_index Column_name
647
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
648
t1 0 a 1 a A NULL NULL NULL YES BTREE
649
t1 1 b 1 b A NULL NULL NULL YES BTREE disabled
508
651
create database mysqltest;
509
652
create table t1 (c1 int);
735
897
alter table t1 change i i bigint;
736
898
select * from t1;
742
904
alter table t1 add unique key (i, v);
743
905
select * from t1 where i between 2 and 4 and v in ('def','3r4f','lmn');
747
create TEMPORARY table t1 (t varchar(255) default null, key t (t(80))) engine=myisam;
909
create table t1 (t varchar(255) default null, key t (t(80)))
910
engine=myisam default charset=latin1;
748
911
alter table t1 change t t text;
750
CREATE TABLE t1 (s CHAR(8));
751
INSERT INTO t1 VALUES ('test');
752
SELECT LENGTH(s) FROM t1;
755
ALTER TABLE t1 MODIFY s CHAR(10);
756
SELECT LENGTH(s) FROM t1;
760
CREATE TABLE t1 (s varbinary(8));
761
INSERT INTO t1 VALUES ('test');
762
SELECT LENGTH(s) FROM t1;
765
SELECT HEX(s) FROM t1;
768
ALTER TABLE t1 MODIFY s varbinary(10);
769
SELECT HEX(s) FROM t1;
772
SELECT LENGTH(s) FROM t1;
913
CREATE TABLE t1 (a varchar(500));
914
ALTER TABLE t1 ADD b GEOMETRY NOT NULL, ADD SPATIAL INDEX(b);
915
SHOW CREATE TABLE t1;
917
t1 CREATE TABLE `t1` (
918
`a` varchar(500) DEFAULT NULL,
919
`b` geometry NOT NULL,
920
SPATIAL KEY `b` (`b`)
921
) ENGINE=MyISAM DEFAULT CHARSET=latin1
922
ALTER TABLE t1 ADD KEY(b(50));
923
SHOW CREATE TABLE t1;
925
t1 CREATE TABLE `t1` (
926
`a` varchar(500) DEFAULT NULL,
927
`b` geometry NOT NULL,
928
SPATIAL KEY `b` (`b`),
930
) ENGINE=MyISAM DEFAULT CHARSET=latin1
931
ALTER TABLE t1 ADD c POINT;
932
SHOW CREATE TABLE t1;
934
t1 CREATE TABLE `t1` (
935
`a` varchar(500) DEFAULT NULL,
936
`b` geometry NOT NULL,
937
`c` point DEFAULT NULL,
938
SPATIAL KEY `b` (`b`),
940
) ENGINE=MyISAM DEFAULT CHARSET=latin1
941
CREATE TABLE t2 (a INT, KEY (a(20)));
942
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
943
ALTER TABLE t1 ADD d INT;
944
ALTER TABLE t1 ADD KEY (d(20));
945
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
946
ALTER TABLE t1 ADD e GEOMETRY NOT NULL, ADD SPATIAL KEY (e(30));
947
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
949
CREATE TABLE t1 (s CHAR(8) BINARY);
950
INSERT INTO t1 VALUES ('test');
951
SELECT LENGTH(s) FROM t1;
954
ALTER TABLE t1 MODIFY s CHAR(10) BINARY;
955
SELECT LENGTH(s) FROM t1;
959
CREATE TABLE t1 (s BINARY(8));
960
INSERT INTO t1 VALUES ('test');
961
SELECT LENGTH(s) FROM t1;
964
SELECT HEX(s) FROM t1;
967
ALTER TABLE t1 MODIFY s BINARY(10);
968
SELECT HEX(s) FROM t1;
971
SELECT LENGTH(s) FROM t1;
776
975
CREATE TABLE t1 (v VARCHAR(3), b INT);
777
976
INSERT INTO t1 VALUES ('abc', 5);
986
drop table if exists t1, t2, t3;
987
create table t1 (i int);
988
create table t3 (j int);
989
insert into t1 values ();
990
insert into t3 values ();
991
lock table t1 write, t3 read;
992
alter table t1 modify i int default 1;
993
insert into t1 values ();
998
alter table t1 change i c char(10) default "Two";
999
insert into t1 values ();
1005
alter table t1 modify c char(10) default "Three", rename to t2;
1007
ERROR HY000: Table 't1' was not locked with LOCK TABLES
1009
ERROR HY000: Table 't2' was not locked with LOCK TABLES
1014
insert into t2 values ();
1021
lock table t2 write, t3 read;
1022
alter table t2 change c vc varchar(100) default "Four", rename to t1;
1024
ERROR HY000: Table 't1' was not locked with LOCK TABLES
1026
ERROR HY000: Table 't2' was not locked with LOCK TABLES
1031
insert into t1 values ();
787
1040
DROP TABLE IF EXISTS `t+1`, `t+2`;
788
1041
CREATE TABLE `t+1` (c1 INT);
789
1042
ALTER TABLE `t+1` RENAME `t+2`;
790
1043
CREATE TABLE `t+1` (c1 INT);
791
1044
ALTER TABLE `t+1` RENAME `t+2`;
792
ERROR 42S01: Table 'test.t+2' already exists
1045
ERROR 42S01: Table 't+2' already exists
793
1046
DROP TABLE `t+1`, `t+2`;
794
1047
CREATE TEMPORARY TABLE `tt+1` (c1 INT);
795
1048
ALTER TABLE `tt+1` RENAME `tt+2`;
796
1049
CREATE TEMPORARY TABLE `tt+1` (c1 INT);
797
1050
ALTER TABLE `tt+1` RENAME `tt+2`;
798
ERROR 42S01: Table 'test.#tt+2' already exists
1051
ERROR 42S01: Table 'tt+2' already exists
799
1052
SHOW CREATE TABLE `tt+1`;
800
1053
Table Create Table
801
1054
tt+1 CREATE TEMPORARY TABLE `tt+1` (
802
`c1` INT DEFAULT NULL
803
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1055
`c1` int(11) DEFAULT NULL
1056
) ENGINE=MyISAM DEFAULT CHARSET=latin1
804
1057
SHOW CREATE TABLE `tt+2`;
805
1058
Table Create Table
806
1059
tt+2 CREATE TEMPORARY TABLE `tt+2` (
807
`c1` INT DEFAULT NULL
808
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1060
`c1` int(11) DEFAULT NULL
1061
) ENGINE=MyISAM DEFAULT CHARSET=latin1
809
1062
DROP TABLE `tt+1`, `tt+2`;
1063
CREATE TABLE `#sql1` (c1 INT);
1064
CREATE TABLE `@0023sql2` (c1 INT);
1069
RENAME TABLE `#sql1` TO `@0023sql1`;
1070
RENAME TABLE `@0023sql2` TO `#sql2`;
1075
ALTER TABLE `@0023sql1` RENAME `#sql-1`;
1076
ALTER TABLE `#sql2` RENAME `@0023sql-2`;
1081
INSERT INTO `#sql-1` VALUES (1);
1082
INSERT INTO `@0023sql-2` VALUES (2);
1083
DROP TABLE `#sql-1`, `@0023sql-2`;
810
1084
CREATE TEMPORARY TABLE `#sql1` (c1 INT);
811
1085
CREATE TEMPORARY TABLE `@0023sql2` (c1 INT);
816
1088
ALTER TABLE `#sql1` RENAME `@0023sql1`;
817
1089
ALTER TABLE `@0023sql2` RENAME `#sql2`;
822
1092
INSERT INTO `#sql2` VALUES (1);
823
1093
INSERT INTO `@0023sql1` VALUES (2);
824
1094
SHOW CREATE TABLE `#sql2`;
825
1095
Table Create Table
826
1096
#sql2 CREATE TEMPORARY TABLE `#sql2` (
827
`c1` INT DEFAULT NULL
828
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1097
`c1` int(11) DEFAULT NULL
1098
) ENGINE=MyISAM DEFAULT CHARSET=latin1
829
1099
SHOW CREATE TABLE `@0023sql1`;
830
1100
Table Create Table
831
1101
@0023sql1 CREATE TEMPORARY TABLE `@0023sql1` (
832
`c1` INT DEFAULT NULL
833
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1102
`c1` int(11) DEFAULT NULL
1103
) ENGINE=MyISAM DEFAULT CHARSET=latin1
834
1104
DROP TABLE `#sql2`, `@0023sql1`;
835
1105
DROP TABLE IF EXISTS t1;
836
1106
DROP TABLE IF EXISTS t2;
837
1107
CREATE TABLE t1 (
838
int_field INTEGER NOT NULL,
1108
int_field INTEGER UNSIGNED NOT NULL,
839
1109
char_field CHAR(10),
840
1110
INDEX(`int_field`)
843
Field Type Null Default Default_is_NULL On_Update
844
int_field INTEGER NO NO
845
char_field VARCHAR YES YES
1113
Field Type Null Key Default Extra
1114
int_field int(10) unsigned NO MUL NULL
1115
char_field char(10) YES NULL
846
1116
SHOW INDEXES FROM t1;
847
Table Unique Key_name Seq_in_index Column_name
848
t1 NO int_field 1 int_field
1117
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
1118
t1 1 int_field 1 int_field A NULL NULL NULL BTREE
849
1119
INSERT INTO t1 VALUES (1, "edno"), (1, "edno"), (2, "dve"), (3, "tri"), (5, "pet");
850
1120
"Non-copy data change - new frm, but old data and index files"
851
ALTER TABLE t1 CHANGE int_field unsigned_int_field INTEGER NOT NULL, RENAME t2;
1122
CHANGE int_field unsigned_int_field INTEGER UNSIGNED NOT NULL,
852
1124
SELECT * FROM t1 ORDER BY int_field;
853
1125
ERROR 42S02: Table 'test.t1' doesn't exist
854
1126
SELECT * FROM t2 ORDER BY unsigned_int_field;