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
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
|
SET @max_row = 20;
drop table if exists t1;
create table t1 (a bit(65), primary key (a)) engine='INNODB' partition by key (a);
ERROR 42000: Display width out of range for 'a' (max = 64)
create table t1 (a bit(0), primary key (a)) engine='INNODB' partition by key (a);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` bit(1) NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY KEY (a) */
drop table t1;
create table t1 (a bit(0), primary key (a)) engine='INNODB'
partition by key (a) (
partition pa1,
partition pa2);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` bit(1) NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY KEY (a)
(PARTITION pa1 ENGINE = InnoDB,
PARTITION pa2 ENGINE = InnoDB) */
drop table t1;
create table t1 (a bit(64), primary key (a)) engine='INNODB'
partition by key (a) partitions 2;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` bit(64) NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY KEY (a)
PARTITIONS 2 */
insert into t1 values
(b'1111111111111111111111111111111111111111111111111111111111111111'),
(b'1000000000000000000000000000000000000000000000000000000000000000'),
(b'0000000000000000000000000000000000000000000000000000000000000001'),
(b'1010101010101010101010101010101010101010101010101010101010101010'),
(b'0101010101010101010101010101010101010101010101010101010101010101');
select hex(a) from t1;
hex(a)
1
5555555555555555
8000000000000000
AAAAAAAAAAAAAAAA
FFFFFFFFFFFFFFFF
drop table t1;
create table t1 (a bit(64), primary key (a)) engine='INNODB'
partition by key (a) (
partition pa1 max_rows=20 min_rows=2,
partition pa2 max_rows=30 min_rows=3,
partition pa3 max_rows=30 min_rows=4,
partition pa4 max_rows=40 min_rows=2);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` bit(64) NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY KEY (a)
(PARTITION pa1 MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = InnoDB,
PARTITION pa2 MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = InnoDB,
PARTITION pa3 MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = InnoDB,
PARTITION pa4 MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = InnoDB) */
insert into t1 values
(b'1111111111111111111111111111111111111111111111111111111111111111'),
(b'1000000000000000000000000000000000000000000000000000000000000000'),
(b'0000000000000000000000000000000000000000000000000000000000000001'),
(b'1010101010101010101010101010101010101010101010101010101010101010'),
(b'0101010101010101010101010101010101010101010101010101010101010101');
select hex(a) from t1 where a=b'0101010101010101010101010101010101010101010101010101010101010101';
hex(a)
5555555555555555
delete from t1 where a=b'0101010101010101010101010101010101010101010101010101010101010101';
select hex(a) from t1;
hex(a)
1
8000000000000000
AAAAAAAAAAAAAAAA
FFFFFFFFFFFFFFFF
drop table t1;
create table t2 (a bit, primary key (a)) engine='INNODB'
partition by key (a) partitions 4;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` bit(1) NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY KEY (a)
PARTITIONS 4 */
insert into t2 values (b'0'), (b'1');
select hex(a) from t2;
hex(a)
0
1
alter table t2 drop primary key;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` bit(1) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY KEY (a)
PARTITIONS 4 */
select hex(a) from t2;
hex(a)
0
1
alter table t2 add primary key (a);
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` bit(1) NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY KEY (a)
PARTITIONS 4 */
select hex(a) from t2;
hex(a)
0
1
drop table t2;
create table t3 (a bit(8), primary key (a)) engine='INNODB'
partition by range (a) subpartition by key (a) subpartitions 2 (
partition pa1 values less than (3),
partition pa2 values less than (16),
partition pa3 values less than (64),
partition pa4 values less than (256));
show create table t3;
Table Create Table
t3 CREATE TABLE `t3` (
`a` bit(8) NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY RANGE (a)
SUBPARTITION BY KEY (a)
SUBPARTITIONS 2
(PARTITION pa1 VALUES LESS THAN (3) ENGINE = InnoDB,
PARTITION pa2 VALUES LESS THAN (16) ENGINE = InnoDB,
PARTITION pa3 VALUES LESS THAN (64) ENGINE = InnoDB,
PARTITION pa4 VALUES LESS THAN (256) ENGINE = InnoDB) */
255 inserts;
select hex(a) from t3 where a=b'01010101';
hex(a)
55
delete from t3 where a=b'01010101';
select count(*) from t3;
count(*)
254
select hex(a) from t3;
hex(a)
1
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
2
20
21
22
23
24
25
26
27
28
29
2A
2B
2C
2D
2E
2F
3
30
31
32
33
34
35
36
37
38
39
3A
3B
3C
3D
3E
3F
4
40
41
42
43
44
45
46
47
48
49
4A
4B
4C
4D
4E
4F
5
50
51
52
53
54
56
57
58
59
5A
5B
5C
5D
5E
5F
6
60
61
62
63
64
65
66
67
68
69
6A
6B
6C
6D
6E
6F
7
70
71
72
73
74
75
76
77
78
79
7A
7B
7C
7D
7E
7F
8
80
81
82
83
84
85
86
87
88
89
8A
8B
8C
8D
8E
8F
9
90
91
92
93
94
95
96
97
98
99
9A
9B
9C
9D
9E
9F
A
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
AA
AB
AC
AD
AE
AF
B
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
BA
BB
BC
BD
BE
BF
C
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
CA
CB
CC
CD
CE
CF
D
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
DA
DB
DC
DD
DE
DF
E
E0
E1
E2
E3
E4
E5
E6
E7
E8
E9
EA
EB
EC
ED
EE
EF
F
F0
F1
F2
F3
F4
F5
F6
F7
F8
F9
FA
FB
FC
FD
FE
FF
drop table t3;
create table t4 (a bit(8), primary key (a)) engine='INNODB'
partition by list (a) subpartition by key (a) subpartitions 2 (
partition pa1 values in (0,1,2,3),
partition pa2 values in (4,5,6,7,8,9,10,11,12,13,14,15,16),
partition pa3 values in (17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32));
show create table t4;
Table Create Table
t4 CREATE TABLE `t4` (
`a` bit(8) NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY LIST (a)
SUBPARTITION BY KEY (a)
SUBPARTITIONS 2
(PARTITION pa1 VALUES IN (0,1,2,3) ENGINE = InnoDB,
PARTITION pa2 VALUES IN (4,5,6,7,8,9,10,11,12,13,14,15,16) ENGINE = InnoDB,
PARTITION pa3 VALUES IN (17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32) ENGINE = InnoDB) */
32 inserts;
select hex(a) from t4 where a=b'00000001';
hex(a)
1
delete from t4 where a=b'00000001';
select count(*) from t4;
count(*)
31
select hex(a) from t4;
hex(a)
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
2
20
3
4
5
6
7
8
9
A
B
C
D
E
F
drop table t4;
|