1
drop table if exists t1,t2;
2
drop database if exists mysqltest;
4
col1 int not null auto_increment primary key,
5
col2 varchar(30) not null,
6
col3 varchar (20) not null,
7
col4 varchar(4) not null,
8
col5 enum('PENDING', 'ACTIVE', 'DISABLED') not null,
9
col6 int not null, to_be_deleted int);
10
insert into t1 values (2,4,3,5,"PENDING",1,7);
12
add column col4_5 varchar(20) not null after col4,
13
add column col7 varchar(30) not null after col5,
14
add column col8 datetime not null, drop column to_be_deleted,
15
change column col2 fourth varchar(30) not null after col3,
16
modify column col6 int not null first;
18
col6 col1 col3 fourth col4 col4_5 col5 col7 col8
19
1 2 3 4 5 PENDING 0000-00-00 00:00:00
21
create table t1 (bandID MEDIUMINT UNSIGNED NOT NULL PRIMARY KEY, payoutID SMALLINT UNSIGNED NOT NULL);
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, order by payoutid,bandid;
25
bandID payoutID new_col
34
alter table t1 order by bandid,payoutid;
36
bandID payoutID new_col
47
GROUP_ID int(10) unsigned DEFAULT '0' NOT NULL,
48
LANG_ID smallint(5) unsigned DEFAULT '0' NOT NULL,
49
NAME varchar(80) DEFAULT '' NOT NULL,
50
PRIMARY KEY (GROUP_ID,LANG_ID),
52
ALTER TABLE t1 CHANGE NAME NAME CHAR(80) not null;
53
SHOW FULL COLUMNS FROM t1;
54
Field Type Collation Null Key Default Extra Privileges Comment
55
GROUP_ID int(10) unsigned NULL NO PRI 0 #
56
LANG_ID smallint(5) unsigned NULL NO PRI 0 #
57
NAME char(80) latin1_swedish_ci NO MUL NULL #
59
create table t1 (n int);
60
insert into t1 values(9),(3),(12),(10);
61
alter table t1 order by n;
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',
74
user_id int(11) unsigned NOT NULL default '0',
75
status enum('new','old') NOT NULL default 'new',
78
ALTER TABLE t1 ORDER BY t1.id, t1.status, t1.type_id, t1.user_id, t1.body;
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);
90
insert into t1 values (null),(null),(null),(null);
91
alter table t1 drop i,add i int unsigned not null auto_increment, drop primary key, add primary key (i);
99
create table t1 (name char(15));
100
insert into t1 (name) values ("current");
101
create database mysqltest;
102
create table mysqltest.t1 (name char(15));
103
insert into mysqltest.t1 (name) values ("mysqltest");
107
select * from mysqltest.t1;
110
alter table t1 rename mysqltest.t1;
111
ERROR 42S01: Table 't1' already exists
115
select * from mysqltest.t1;
119
drop database mysqltest;
120
create table t1 (n1 int not null, n2 int, n3 int, n4 float,
122
key (n1, n2, n3, n4),
123
key (n2, n3, n4, n1),
124
key (n3, n4, n1, n2),
125
key (n4, n1, n2, n3) );
126
alter table t1 disable keys;
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
146
insert into t1 values(10,RAND()*1000,RAND()*1000,RAND());
147
insert into t1 values(9,RAND()*1000,RAND()*1000,RAND());
148
insert into t1 values(8,RAND()*1000,RAND()*1000,RAND());
149
insert into t1 values(7,RAND()*1000,RAND()*1000,RAND());
150
insert into t1 values(6,RAND()*1000,RAND()*1000,RAND());
151
insert into t1 values(5,RAND()*1000,RAND()*1000,RAND());
152
insert into t1 values(4,RAND()*1000,RAND()*1000,RAND());
153
insert into t1 values(3,RAND()*1000,RAND()*1000,RAND());
154
insert into t1 values(2,RAND()*1000,RAND()*1000,RAND());
155
insert into t1 values(1,RAND()*1000,RAND()*1000,RAND());
156
alter table t1 enable keys;
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
177
create table t1 (i int unsigned not null auto_increment primary key);
178
alter table t1 rename t2;
179
alter table t2 rename t1, add c char(10) comment "no comment";
180
show columns from t1;
181
Field Type Null Key Default Extra
182
i int(10) unsigned NO PRI NULL auto_increment
185
create table t1 (a int, b int);
186
insert into t1 values(1,100), (2,100), (3, 100);
187
insert into t1 values(1,99), (2,99), (3, 99);
188
insert into t1 values(1,98), (2,98), (3, 98);
189
insert into t1 values(1,97), (2,97), (3, 97);
190
insert into t1 values(1,96), (2,96), (3, 96);
191
insert into t1 values(1,95), (2,95), (3, 95);
192
insert into t1 values(1,94), (2,94), (3, 94);
193
insert into t1 values(1,93), (2,93), (3, 93);
194
insert into t1 values(1,92), (2,92), (3, 92);
195
insert into t1 values(1,91), (2,91), (3, 91);
196
insert into t1 values(1,90), (2,90), (3, 90);
197
insert into t1 values(1,89), (2,89), (3, 89);
198
insert into t1 values(1,88), (2,88), (3, 88);
199
insert into t1 values(1,87), (2,87), (3, 87);
200
insert into t1 values(1,86), (2,86), (3, 86);
201
insert into t1 values(1,85), (2,85), (3, 85);
202
insert into t1 values(1,84), (2,84), (3, 84);
203
insert into t1 values(1,83), (2,83), (3, 83);
204
insert into t1 values(1,82), (2,82), (3, 82);
205
insert into t1 values(1,81), (2,81), (3, 81);
206
insert into t1 values(1,80), (2,80), (3, 80);
207
insert into t1 values(1,79), (2,79), (3, 79);
208
insert into t1 values(1,78), (2,78), (3, 78);
209
insert into t1 values(1,77), (2,77), (3, 77);
210
insert into t1 values(1,76), (2,76), (3, 76);
211
insert into t1 values(1,75), (2,75), (3, 75);
212
insert into t1 values(1,74), (2,74), (3, 74);
213
insert into t1 values(1,73), (2,73), (3, 73);
214
insert into t1 values(1,72), (2,72), (3, 72);
215
insert into t1 values(1,71), (2,71), (3, 71);
216
insert into t1 values(1,70), (2,70), (3, 70);
217
insert into t1 values(1,69), (2,69), (3, 69);
218
insert into t1 values(1,68), (2,68), (3, 68);
219
insert into t1 values(1,67), (2,67), (3, 67);
220
insert into t1 values(1,66), (2,66), (3, 66);
221
insert into t1 values(1,65), (2,65), (3, 65);
222
insert into t1 values(1,64), (2,64), (3, 64);
223
insert into t1 values(1,63), (2,63), (3, 63);
224
insert into t1 values(1,62), (2,62), (3, 62);
225
insert into t1 values(1,61), (2,61), (3, 61);
226
insert into t1 values(1,60), (2,60), (3, 60);
227
insert into t1 values(1,59), (2,59), (3, 59);
228
insert into t1 values(1,58), (2,58), (3, 58);
229
insert into t1 values(1,57), (2,57), (3, 57);
230
insert into t1 values(1,56), (2,56), (3, 56);
231
insert into t1 values(1,55), (2,55), (3, 55);
232
insert into t1 values(1,54), (2,54), (3, 54);
233
insert into t1 values(1,53), (2,53), (3, 53);
234
insert into t1 values(1,52), (2,52), (3, 52);
235
insert into t1 values(1,51), (2,51), (3, 51);
236
insert into t1 values(1,50), (2,50), (3, 50);
237
insert into t1 values(1,49), (2,49), (3, 49);
238
insert into t1 values(1,48), (2,48), (3, 48);
239
insert into t1 values(1,47), (2,47), (3, 47);
240
insert into t1 values(1,46), (2,46), (3, 46);
241
insert into t1 values(1,45), (2,45), (3, 45);
242
insert into t1 values(1,44), (2,44), (3, 44);
243
insert into t1 values(1,43), (2,43), (3, 43);
244
insert into t1 values(1,42), (2,42), (3, 42);
245
insert into t1 values(1,41), (2,41), (3, 41);
246
insert into t1 values(1,40), (2,40), (3, 40);
247
insert into t1 values(1,39), (2,39), (3, 39);
248
insert into t1 values(1,38), (2,38), (3, 38);
249
insert into t1 values(1,37), (2,37), (3, 37);
250
insert into t1 values(1,36), (2,36), (3, 36);
251
insert into t1 values(1,35), (2,35), (3, 35);
252
insert into t1 values(1,34), (2,34), (3, 34);
253
insert into t1 values(1,33), (2,33), (3, 33);
254
insert into t1 values(1,32), (2,32), (3, 32);
255
insert into t1 values(1,31), (2,31), (3, 31);
256
insert into t1 values(1,30), (2,30), (3, 30);
257
insert into t1 values(1,29), (2,29), (3, 29);
258
insert into t1 values(1,28), (2,28), (3, 28);
259
insert into t1 values(1,27), (2,27), (3, 27);
260
insert into t1 values(1,26), (2,26), (3, 26);
261
insert into t1 values(1,25), (2,25), (3, 25);
262
insert into t1 values(1,24), (2,24), (3, 24);
263
insert into t1 values(1,23), (2,23), (3, 23);
264
insert into t1 values(1,22), (2,22), (3, 22);
265
insert into t1 values(1,21), (2,21), (3, 21);
266
insert into t1 values(1,20), (2,20), (3, 20);
267
insert into t1 values(1,19), (2,19), (3, 19);
268
insert into t1 values(1,18), (2,18), (3, 18);
269
insert into t1 values(1,17), (2,17), (3, 17);
270
insert into t1 values(1,16), (2,16), (3, 16);
271
insert into t1 values(1,15), (2,15), (3, 15);
272
insert into t1 values(1,14), (2,14), (3, 14);
273
insert into t1 values(1,13), (2,13), (3, 13);
274
insert into t1 values(1,12), (2,12), (3, 12);
275
insert into t1 values(1,11), (2,11), (3, 11);
276
insert into t1 values(1,10), (2,10), (3, 10);
277
insert into t1 values(1,9), (2,9), (3, 9);
278
insert into t1 values(1,8), (2,8), (3, 8);
279
insert into t1 values(1,7), (2,7), (3, 7);
280
insert into t1 values(1,6), (2,6), (3, 6);
281
insert into t1 values(1,5), (2,5), (3, 5);
282
insert into t1 values(1,4), (2,4), (3, 4);
283
insert into t1 values(1,3), (2,3), (3, 3);
284
insert into t1 values(1,2), (2,2), (3, 2);
285
insert into t1 values(1,1), (2,1), (3, 1);
286
alter table t1 add unique (a,b), add key (b);
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
Table Op Msg_type Msg_text
294
test.t1 analyze status OK
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 '',
327
PRIMARY KEY (Host,User),
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;
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
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
351
Table Op Msg_type Msg_text
352
test.t1 check status OK
353
LOCK TABLES t1 WRITE;
354
ALTER TABLE t1 RENAME 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
375
create table t1 (a int);
376
alter table t1 rename to ``;
377
ERROR 42000: Incorrect table name ''
378
rename table t1 to ``;
379
ERROR 42000: Incorrect table name ''
381
drop table if exists t1;
383
Note 1051 Unknown table 't1'
384
create table t1 ( a varchar(10) not null primary key ) engine=myisam;
386
alter table t1 modify a varchar(10);
388
alter table t1 modify a varchar(10) not null;
389
drop table if exists t1;
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);
392
show table status like 't1';
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
395
alter table t1 modify a int;
396
show table status like 't1';
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
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;
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
411
show table status like 't1';
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;
420
���� D4C5D3D4
421
alter table t1 change a a char(10) character set cp1251;
422
select a,hex(a) from t1;
424
���� F2E5F1F2
425
alter table t1 change a a binary(4);
426
select a,hex(a) from t1;
428
���� F2E5F1F2
429
alter table t1 change a a char(10) character set cp1251;
430
select a,hex(a) from t1;
432
���� F2E5F1F2
433
alter table t1 change a a char(10) character set koi8r;
434
select a,hex(a) from t1;
436
���� D4C5D3D4
437
alter table t1 change a a varchar(10) character set cp1251;
438
select a,hex(a) from t1;
440
���� F2E5F1F2
441
alter table t1 change a a char(10) character set koi8r;
442
select a,hex(a) from t1;
444
���� D4C5D3D4
445
alter table t1 change a a text character set cp1251;
446
select a,hex(a) from t1;
448
���� F2E5F1F2
449
alter table t1 change a a char(10) character set koi8r;
450
select a,hex(a) from t1;
452
���� D4C5D3D4
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
494
CREATE TABLE t1 (a int PRIMARY KEY, b INT UNIQUE);
495
ALTER TABLE t1 DROP PRIMARY KEY;
496
SHOW CREATE TABLE t1;
498
t1 CREATE TABLE `t1` (
499
`a` int(11) NOT NULL,
500
`b` int(11) DEFAULT NULL,
502
) ENGINE=MyISAM DEFAULT CHARSET=latin1
503
ALTER TABLE t1 DROP PRIMARY KEY;
504
ERROR 42000: Can't DROP 'PRIMARY'; check that column/key exists
506
create table t1 (a int, b int, key(a));
507
insert into t1 values (1,1), (2,2);
508
alter table t1 drop key no_such_key;
509
ERROR 42000: Can't DROP 'no_such_key'; check that column/key exists
510
alter table t1 drop key a;
512
CREATE TABLE T12207(a int) ENGINE=MYISAM;
513
ALTER TABLE T12207 DISCARD TABLESPACE;
514
ERROR HY000: Table storage engine for 'T12207' doesn't have this option
516
create table t1 (a text) character set koi8r;
517
insert into t1 values (_koi8r'����');
518
select hex(a) from t1;
521
alter table t1 convert to character set cp1251;
522
select hex(a) from t1;
526
create table t1 ( a timestamp );
527
alter table t1 add unique ( a(1) );
528
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
530
drop table if exists t1;
531
create table t1 (a int, key(a));
532
show indexes from t1;
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
535
"this used not to disable the index"
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
561
alter table t1 disable keys;
562
show indexes from t1;
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
566
Field Type Null Key Default Extra
567
a bigint(20) YES MUL NULL
569
c decimal(10,2) YES NULL
570
alter table t1 add d decimal(15,5);
571
"The key should still be disabled"
572
show indexes from t1;
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
576
"Now will test with one unique index"
577
create table t1(a int, b char(10), unique(a));
578
show indexes from t1;
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;
582
show indexes from t1;
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
585
alter table t1 enable keys;
586
"If no copy on noop change, this won't touch the data file"
587
"Unique index, no change"
588
alter table t1 modify a int, disable keys;
589
show indexes from t1;
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
592
"Change the type implying data copy"
593
"Unique index, no change"
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
602
alter table t1 modify a int;
603
show indexes from t1;
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
607
"Now will test with one unique and one non-unique index"
608
create table t1(a int, b char(10), unique(a), key(b));
609
show indexes from t1;
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;
614
show indexes from t1;
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
618
alter table t1 enable keys;
619
"If no copy on noop change, this won't touch the data file"
620
"The non-unique index will be disabled"
621
alter table t1 modify a int, disable keys;
622
show indexes from t1;
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
626
alter table t1 enable keys;
627
show indexes from t1;
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
631
"Change the type implying data copy"
632
"The non-unique index will be disabled"
633
alter table t1 modify a bigint, disable keys;
634
show indexes from t1;
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
638
"Change again the type, but leave the indexes as_is"
639
alter table t1 modify a int;
640
show indexes from t1;
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
644
"Try the same. When data is no copied on similar tables, this is noop"
645
alter table t1 modify a int;
646
show indexes from t1;
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
651
create database mysqltest;
652
create table t1 (c1 int);
653
alter table t1 rename mysqltest.t1;
655
ERROR 42S02: Unknown table 't1'
656
alter table mysqltest.t1 rename t1;
658
create table t1 (c1 int);
660
drop database mysqltest;
661
alter table test.t1 rename t1;
662
ERROR 3D000: No database selected
663
alter table test.t1 rename test.t1;
666
CREATE TABLE t1(a INT) ROW_FORMAT=FIXED;
667
CREATE INDEX i1 ON t1(a);
668
SHOW CREATE TABLE t1;
670
t1 CREATE TABLE `t1` (
671
`a` int(11) DEFAULT NULL,
673
) ENGINE=MyISAM DEFAULT CHARSET=latin1 ROW_FORMAT=FIXED
675
SHOW CREATE TABLE t1;
677
t1 CREATE TABLE `t1` (
678
`a` int(11) DEFAULT NULL
679
) ENGINE=MyISAM DEFAULT CHARSET=latin1 ROW_FORMAT=FIXED
681
DROP TABLE IF EXISTS bug24219;
682
DROP TABLE IF EXISTS bug24219_2;
683
CREATE TABLE bug24219 (a INT, INDEX(a));
684
SHOW INDEX FROM bug24219;
685
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
686
bug24219 1 a 1 a A NULL NULL NULL YES BTREE
687
ALTER TABLE bug24219 RENAME TO bug24219_2, DISABLE KEYS;
688
SHOW INDEX FROM bug24219_2;
689
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
690
bug24219_2 1 a 1 a A NULL NULL NULL YES BTREE disabled
691
DROP TABLE bug24219_2;
692
drop table if exists table_24562;
693
create table table_24562(
697
insert into table_24562 values
698
(1, 0, "Introduction"),
700
(1, 2, "Acknowledgements"),
705
(3, 0, "Intermediate"),
706
(3, 1, "Complex queries"),
707
(3, 2, "Stored Procedures"),
708
(3, 3, "Stored Functions"),
710
(4, 1, "Replication"),
711
(4, 2, "Load balancing"),
712
(4, 3, "High availability"),
713
(5, 0, "Conclusion");
714
select * from table_24562;
715
section subsection title
725
3 2 Stored Procedures
730
4 3 High availability
732
alter table table_24562 add column reviewer varchar(20),
734
select * from table_24562;
735
section subsection title reviewer
736
1 2 Acknowledgements NULL
741
3 1 Complex queries NULL
743
4 3 High availability NULL
744
3 0 Intermediate NULL
745
1 0 Introduction NULL
746
4 2 Load balancing NULL
749
3 3 Stored Functions NULL
750
3 2 Stored Procedures NULL
752
update table_24562 set reviewer="Me" where section=2;
753
update table_24562 set reviewer="You" where section=3;
754
alter table table_24562
755
order by section ASC, subsection DESC;
756
select * from table_24562;
757
section subsection title reviewer
758
1 2 Acknowledgements NULL
760
1 0 Introduction NULL
765
3 3 Stored Functions You
766
3 2 Stored Procedures You
767
3 1 Complex queries You
769
4 3 High availability NULL
770
4 2 Load balancing NULL
774
alter table table_24562
775
order by table_24562.subsection ASC, table_24562.section DESC;
776
select * from table_24562;
777
section subsection title reviewer
782
1 0 Introduction NULL
784
3 1 Complex queries You
787
4 2 Load balancing NULL
788
3 2 Stored Procedures You
790
1 2 Acknowledgements NULL
791
4 3 High availability NULL
792
3 3 Stored Functions You
794
alter table table_24562 order by 12;
795
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '12' at line 1
796
alter table table_24562 order by (section + 12);
797
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(section + 12)' at line 1
798
alter table table_24562 order by length(title);
799
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(title)' at line 1
800
alter table table_24562 order by (select 12 from dual);
801
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(select 12 from dual)' at line 1
802
alter table table_24562 order by no_such_col;
803
ERROR 42S22: Unknown column 'no_such_col' in 'order clause'
804
drop table table_24562;
805
create table t1 (mycol int(10) not null);
806
alter table t1 alter column mycol set default 0;
808
Field Type Null Key Default Extra
811
create table t1(id int(8) primary key auto_increment) engine=heap;
812
insert into t1 values (null);
813
insert into t1 values (null);
818
alter table t1 auto_increment = 50;
819
alter table t1 engine = myisam;
820
insert into t1 values (null);
826
alter table t1 engine = heap;
827
insert into t1 values (null);
835
set @orig_sql_mode = @@sql_mode;
836
set sql_mode="no_zero_date";
837
create table t1(f1 int);
838
alter table t1 add column f2 datetime not null, add column f21 date not null;
839
insert into t1 values(1,'2000-01-01','2000-01-01');
840
alter table t1 add column f3 datetime not null;
841
ERROR 22007: Incorrect datetime value: '0000-00-00 00:00:00' for column 'f3' at row 1
842
alter table t1 add column f3 date not null;
843
ERROR 22007: Incorrect date value: '0000-00-00' for column 'f3' at row 1
844
alter table t1 add column f4 datetime not null default '2002-02-02',
845
add column f41 date not null;
846
ERROR 22007: Incorrect date value: '0000-00-00' for column 'f41' at row 1
847
alter table t1 add column f4 datetime not null default '2002-02-02',
848
add column f41 date not null default '2002-02-02';
851
1 2000-01-01 00:00:00 2000-01-01 2002-02-02 00:00:00 2002-02-02
853
set sql_mode= @orig_sql_mode;
854
create table t1 (v varchar(32));
855
insert into t1 values ('def'),('abc'),('hij'),('3r4f');
862
alter table t1 change v v2 varchar(32);
869
alter table t1 change v2 v varchar(64);
876
update t1 set v = 'lmn' where v = 'hij';
883
alter table t1 add i int auto_increment not null primary key first;
890
update t1 set i=5 where i=3;
897
alter table t1 change i i bigint;
904
alter table t1 add unique key (i, v);
905
select * from t1 where i between 2 and 4 and v in ('def','3r4f','lmn');
909
create table t1 (t varchar(255) default null, key t (t(80)))
910
engine=myisam default charset=latin1;
911
alter table t1 change t t text;
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;
975
CREATE TABLE t1 (v VARCHAR(3), b INT);
976
INSERT INTO t1 VALUES ('abc', 5);
980
ALTER TABLE t1 MODIFY COLUMN v VARCHAR(4);
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 ();
1040
DROP TABLE IF EXISTS `t+1`, `t+2`;
1041
CREATE TABLE `t+1` (c1 INT);
1042
ALTER TABLE `t+1` RENAME `t+2`;
1043
CREATE TABLE `t+1` (c1 INT);
1044
ALTER TABLE `t+1` RENAME `t+2`;
1045
ERROR 42S01: Table 't+2' already exists
1046
DROP TABLE `t+1`, `t+2`;
1047
CREATE TEMPORARY TABLE `tt+1` (c1 INT);
1048
ALTER TABLE `tt+1` RENAME `tt+2`;
1049
CREATE TEMPORARY TABLE `tt+1` (c1 INT);
1050
ALTER TABLE `tt+1` RENAME `tt+2`;
1051
ERROR 42S01: Table 'tt+2' already exists
1052
SHOW CREATE TABLE `tt+1`;
1054
tt+1 CREATE TEMPORARY TABLE `tt+1` (
1055
`c1` int(11) DEFAULT NULL
1056
) ENGINE=MyISAM DEFAULT CHARSET=latin1
1057
SHOW CREATE TABLE `tt+2`;
1059
tt+2 CREATE TEMPORARY TABLE `tt+2` (
1060
`c1` int(11) DEFAULT NULL
1061
) ENGINE=MyISAM DEFAULT CHARSET=latin1
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`;
1084
CREATE TEMPORARY TABLE `#sql1` (c1 INT);
1085
CREATE TEMPORARY TABLE `@0023sql2` (c1 INT);
1088
ALTER TABLE `#sql1` RENAME `@0023sql1`;
1089
ALTER TABLE `@0023sql2` RENAME `#sql2`;
1092
INSERT INTO `#sql2` VALUES (1);
1093
INSERT INTO `@0023sql1` VALUES (2);
1094
SHOW CREATE TABLE `#sql2`;
1096
#sql2 CREATE TEMPORARY TABLE `#sql2` (
1097
`c1` int(11) DEFAULT NULL
1098
) ENGINE=MyISAM DEFAULT CHARSET=latin1
1099
SHOW CREATE TABLE `@0023sql1`;
1101
@0023sql1 CREATE TEMPORARY TABLE `@0023sql1` (
1102
`c1` int(11) DEFAULT NULL
1103
) ENGINE=MyISAM DEFAULT CHARSET=latin1
1104
DROP TABLE `#sql2`, `@0023sql1`;
1105
DROP TABLE IF EXISTS t1;
1106
DROP TABLE IF EXISTS t2;
1108
int_field INTEGER UNSIGNED NOT NULL,
1109
char_field CHAR(10),
1113
Field Type Null Key Default Extra
1114
int_field int(10) unsigned NO MUL NULL
1115
char_field char(10) YES NULL
1116
SHOW INDEXES FROM t1;
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
1119
INSERT INTO t1 VALUES (1, "edno"), (1, "edno"), (2, "dve"), (3, "tri"), (5, "pet");
1120
"Non-copy data change - new frm, but old data and index files"
1122
CHANGE int_field unsigned_int_field INTEGER UNSIGNED NOT NULL,
1124
SELECT * FROM t1 ORDER BY int_field;
1125
ERROR 42S02: Table 'test.t1' doesn't exist
1126
SELECT * FROM t2 ORDER BY unsigned_int_field;
1127
unsigned_int_field char_field
1134
Field Type Null Key Default Extra
1135
unsigned_int_field int(10) unsigned NO MUL NULL
1136
char_field char(10) YES NULL
1138
Field Type Null Key Default Extra
1139
unsigned_int_field int(10) unsigned NO MUL NULL
1140
char_field char(10) YES NULL
1141
ALTER TABLE t2 MODIFY unsigned_int_field BIGINT UNSIGNED NOT NULL;
1143
Field Type Null Key Default Extra
1144
unsigned_int_field bigint(20) unsigned NO MUL NULL
1145
char_field char(10) YES NULL
1147
CREATE TABLE t1 (f1 INT, f2 INT, f3 INT);
1148
INSERT INTO t1 VALUES (1, 2, NULL);
1152
ALTER TABLE t1 MODIFY COLUMN f3 INT AFTER f1;
1156
ALTER TABLE t1 MODIFY COLUMN f3 INT AFTER f2;
1161
create table t1 (c char(10) default "Two");
1162
lock table t1 write;
1163
insert into t1 values ();
1164
alter table t1 modify c char(10) default "Three";
1170
Table Op Msg_type Msg_text
1171
test.t1 check status OK
added
removed
mysql-test/r/alter_table.result
