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
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
drop table if exists t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key(a,b))
partition by range (a)
partitions 3
(partition x1 values less than (5) tablespace ts1,
partition x2 values less than (10) tablespace ts2,
partition x3 values less than maxvalue tablespace ts3);
INSERT into t1 values (1, 1, 1);
INSERT into t1 values (6, 1, 1);
INSERT into t1 values (10, 1, 1);
INSERT into t1 values (15, 1, 1);
select * from t1;
a b c
1 1 1
6 1 1
10 1 1
15 1 1
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` int(11) NOT NULL,
`c` int(11) NOT NULL,
PRIMARY KEY (`a`,`b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 PARTITION BY RANGE (a) (PARTITION x1 VALUES LESS THAN (5) TABLESPACE = ts1 ENGINE = MyISAM, PARTITION x2 VALUES LESS THAN (10) TABLESPACE = ts2 ENGINE = MyISAM, PARTITION x3 VALUES LESS THAN MAXVALUE TABLESPACE = ts3 ENGINE = MyISAM)
ALTER TABLE t1
partition by range (a)
partitions 3
(partition x1 values less than (5) tablespace ts1,
partition x2 values less than (10) tablespace ts2,
partition x3 values less than maxvalue tablespace ts3);
select * from t1;
a b c
1 1 1
6 1 1
10 1 1
15 1 1
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` int(11) NOT NULL,
`c` int(11) NOT NULL,
PRIMARY KEY (`a`,`b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 PARTITION BY RANGE (a) (PARTITION x1 VALUES LESS THAN (5) TABLESPACE = ts1 ENGINE = MyISAM, PARTITION x2 VALUES LESS THAN (10) TABLESPACE = ts2 ENGINE = MyISAM, PARTITION x3 VALUES LESS THAN MAXVALUE TABLESPACE = ts3 ENGINE = MyISAM)
drop table if exists t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null)
partition by range (a)
partitions 3
(partition x1 values less than (5) tablespace ts1,
partition x2 values less than (10) tablespace ts2,
partition x3 values less than maxvalue tablespace ts3);
INSERT into t1 values (1, 1, 1);
INSERT into t1 values (6, 1, 1);
INSERT into t1 values (10, 1, 1);
INSERT into t1 values (15, 1, 1);
select * from t1;
a b c
1 1 1
6 1 1
10 1 1
15 1 1
ALTER TABLE t1
partition by range (a)
partitions 3
(partition x1 values less than (5) tablespace ts1,
partition x2 values less than (10) tablespace ts2,
partition x3 values less than maxvalue tablespace ts3);
select * from t1;
a b c
1 1 1
6 1 1
10 1 1
15 1 1
drop table if exists t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key(a,b))
partition by range (a)
partitions 3
(partition x1 values less than (5) tablespace ts1,
partition x2 values less than (10) tablespace ts2,
partition x3 values less than (15) tablespace ts3);
INSERT into t1 values (1, 1, 1);
INSERT into t1 values (6, 1, 1);
INSERT into t1 values (10, 1, 1);
INSERT into t1 values (15, 1, 1);
ERROR HY000: Table has no partition for value 15
select * from t1;
a b c
1 1 1
6 1 1
10 1 1
ALTER TABLE t1
partition by range (a)
partitions 3
(partition x1 values less than (5) tablespace ts1,
partition x2 values less than (10) tablespace ts2,
partition x3 values less than (15) tablespace ts3);
select * from t1;
a b c
1 1 1
6 1 1
10 1 1
drop table t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key(a,b))
partition by range (a)
(partition x1 values less than (1));
drop table t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key (a,b))
partition by range (a)
subpartition by hash (a+b)
( partition x1 values less than (1)
( subpartition x11,
subpartition x12),
partition x2 values less than (5)
( subpartition x21,
subpartition x22)
);
SELECT * from t1;
a b c
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` int(11) NOT NULL,
`c` int(11) NOT NULL,
PRIMARY KEY (`a`,`b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 PARTITION BY RANGE (a) SUBPARTITION BY HASH (a+b) (PARTITION x1 VALUES LESS THAN (1) (SUBPARTITION x11 ENGINE = MyISAM, SUBPARTITION x12 ENGINE = MyISAM), PARTITION x2 VALUES LESS THAN (5) (SUBPARTITION x21 ENGINE = MyISAM, SUBPARTITION x22 ENGINE = MyISAM))
ALTER TABLE t1 ADD COLUMN d int;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` int(11) NOT NULL,
`c` int(11) NOT NULL,
`d` int(11) default NULL,
PRIMARY KEY (`a`,`b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 PARTITION BY RANGE (a) SUBPARTITION BY HASH (a+b) (PARTITION x1 VALUES LESS THAN (1) (SUBPARTITION x11 ENGINE = MyISAM, SUBPARTITION x12 ENGINE = MyISAM), PARTITION x2 VALUES LESS THAN (5) (SUBPARTITION x21 ENGINE = MyISAM, SUBPARTITION x22 ENGINE = MyISAM))
drop table t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key (a,b))
partition by range (a)
subpartition by hash (a+b)
( partition x1 values less than (1)
( subpartition x11 tablespace t1 engine myisam nodegroup 0,
subpartition x12 tablespace t2 engine myisam nodegroup 1),
partition x2 values less than (5)
( subpartition x21 tablespace t1 engine myisam nodegroup 0,
subpartition x22 tablespace t2 engine myisam nodegroup 1)
);
SELECT * from t1;
a b c
drop table t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key (a,b))
partition by range (a)
subpartition by hash (a+b)
( partition x1 values less than (1)
( subpartition x11 tablespace t1 nodegroup 0,
subpartition x12 tablespace t2 nodegroup 1),
partition x2 values less than (5)
( subpartition x21 tablespace t1 nodegroup 0,
subpartition x22 tablespace t2 nodegroup 1)
);
SELECT * from t1;
a b c
drop table t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key (a,b))
partition by range (a)
subpartition by hash (a+b)
( partition x1 values less than (1)
( subpartition x11 engine myisam nodegroup 0,
subpartition x12 engine myisam nodegroup 1),
partition x2 values less than (5)
( subpartition x21 engine myisam nodegroup 0,
subpartition x22 engine myisam nodegroup 1)
);
INSERT into t1 VALUES (1,1,1);
INSERT into t1 VALUES (4,1,1);
INSERT into t1 VALUES (5,1,1);
ERROR HY000: Table has no partition for value 5
SELECT * from t1;
a b c
1 1 1
4 1 1
ALTER TABLE t1
partition by range (a)
subpartition by hash (a+b)
( partition x1 values less than (1)
( subpartition x11 engine myisam nodegroup 0,
subpartition x12 engine myisam nodegroup 1),
partition x2 values less than (5)
( subpartition x21 engine myisam nodegroup 0,
subpartition x22 engine myisam nodegroup 1)
);
SELECT * from t1;
a b c
1 1 1
4 1 1
drop table t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key (a,b))
partition by range (a)
subpartition by hash (a+b)
( partition x1 values less than (1)
( subpartition x11 tablespace t1 engine myisam,
subpartition x12 tablespace t2 engine myisam),
partition x2 values less than (5)
( subpartition x21 tablespace t1 engine myisam,
subpartition x22 tablespace t2 engine myisam)
);
INSERT into t1 VALUES (1,1,1);
INSERT into t1 VALUES (4,1,1);
INSERT into t1 VALUES (5,1,1);
ERROR HY000: Table has no partition for value 5
SELECT * from t1;
a b c
1 1 1
4 1 1
ALTER TABLE t1
partition by range (a)
subpartition by hash (a+b)
( partition x1 values less than (1)
( subpartition x11 tablespace t1 engine myisam,
subpartition x12 tablespace t2 engine myisam),
partition x2 values less than (5)
( subpartition x21 tablespace t1 engine myisam,
subpartition x22 tablespace t2 engine myisam)
);
SELECT * from t1;
a b c
1 1 1
4 1 1
drop table t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key (a,b))
partition by range (a)
subpartition by hash (a+b)
( partition x1 values less than (1)
( subpartition x11 tablespace t1,
subpartition x12 tablespace t2),
partition x2 values less than (5)
( subpartition x21 tablespace t1,
subpartition x22 tablespace t2)
);
INSERT into t1 VALUES (1,1,1);
INSERT into t1 VALUES (4,1,1);
INSERT into t1 VALUES (5,1,1);
ERROR HY000: Table has no partition for value 5
SELECT * from t1;
a b c
1 1 1
4 1 1
ALTER TABLE t1
partition by range (a)
subpartition by hash (a+b)
( partition x1 values less than (1)
( subpartition x11 tablespace t1 engine myisam,
subpartition x12 tablespace t2 engine myisam),
partition x2 values less than (5)
( subpartition x21 tablespace t1 engine myisam,
subpartition x22 tablespace t2 engine myisam)
);
SELECT * from t1;
a b c
1 1 1
4 1 1
drop table t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key (a,b))
partition by range (a)
subpartition by hash (a+b)
( partition x1 values less than (1)
( subpartition x11 engine myisam,
subpartition x12 engine myisam),
partition x2 values less than (5)
( subpartition x21 engine myisam,
subpartition x22 engine myisam)
);
INSERT into t1 VALUES (1,1,1);
INSERT into t1 VALUES (4,1,1);
INSERT into t1 VALUES (5,1,1);
ERROR HY000: Table has no partition for value 5
SELECT * from t1;
a b c
1 1 1
4 1 1
ALTER TABLE t1
partition by range (a)
subpartition by hash (a+b)
( partition x1 values less than (1)
( subpartition x11 engine myisam,
subpartition x12 engine myisam),
partition x2 values less than (5)
( subpartition x21 engine myisam,
subpartition x22 engine myisam)
);
SELECT * from t1;
a b c
1 1 1
4 1 1
drop table t1;