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
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
|
for master_1
for child2
child2_1
child2_2
child2_3
for child3
child3_1
child3_2
child3_3
drop and create databases
DROP DATABASE IF EXISTS auto_test_local;
CREATE DATABASE auto_test_local;
USE auto_test_local;
DROP DATABASE IF EXISTS auto_test_remote;
CREATE DATABASE auto_test_remote;
USE auto_test_remote;
DROP DATABASE IF EXISTS auto_test_remote2;
CREATE DATABASE auto_test_remote2;
USE auto_test_remote2;
test select 1
SELECT 1;
1
1
create table select test
DROP TABLE IF EXISTS tb_l;
CREATE TABLE tb_l (
a INT,
b CHAR(1),
c DATETIME,
PRIMARY KEY(a)
) MASTER_1_ENGINE2 MASTER_1_CHARSET2
INSERT INTO tb_l (a, b, c) VALUES
(1, 'a', '2008-08-01 10:21:39'),
(2, 'b', '2000-01-01 00:00:00'),
(3, 'e', '2007-06-04 20:03:11'),
(4, 'd', '2003-11-30 05:01:03'),
(5, 'c', '2001-12-31 23:59:59');
DROP TABLE IF EXISTS ta_l;
CREATE TABLE ta_l (
PRIMARY KEY(a)
) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
SELECT a, b, c FROM tb_l
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 a 2008-08-01 10:21:39
2 b 2000-01-01 00:00:00
3 e 2007-06-04 20:03:11
4 d 2003-11-30 05:01:03
5 c 2001-12-31 23:59:59
create table ignore select test
DROP TABLE IF EXISTS ta_l;
DROP TABLE IF EXISTS tb_l;
CREATE TABLE tb_l (
a INT,
b CHAR(1),
c DATETIME,
PRIMARY KEY(a)
) MASTER_1_ENGINE2 MASTER_1_CHARSET2
INSERT INTO tb_l (a, b, c) VALUES
(1, 'f', '2008-07-01 10:21:39'),
(2, 'g', '2000-02-01 00:00:00'),
(3, 'j', '2007-05-04 20:03:11'),
(4, 'i', '2003-10-30 05:01:03'),
(5, 'h', '2001-10-31 23:59:59');
CREATE TABLE ta_l (
PRIMARY KEY(a)
) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
IGNORE SELECT a, b, c FROM tb_l
Warnings:
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '2' for key 'PRIMARY'
Warning 1062 Duplicate entry '3' for key 'PRIMARY'
Warning 1062 Duplicate entry '4' for key 'PRIMARY'
Warning 1062 Duplicate entry '5' for key 'PRIMARY'
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 a 2008-08-01 10:21:39
2 b 2000-01-01 00:00:00
3 e 2007-06-04 20:03:11
4 d 2003-11-30 05:01:03
5 c 2001-12-31 23:59:59
create table ignore select test
DROP TABLE IF EXISTS ta_l;
CREATE TABLE ta_l (
PRIMARY KEY(a)
) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
REPLACE SELECT a, b, c FROM tb_l
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
create no index table
DROP TABLE IF EXISTS ta_l_no_idx;
CREATE TABLE ta_l_no_idx
MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
SELECT a, b, c FROM tb_l
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l_no_idx ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select table
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select table shared mode
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
LOCK IN SHARE MODE;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select table for update
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
FOR UPDATE;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select table join
SELECT a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a, tb_l b
WHERE a.a = b.a ORDER BY a.a;
a b date_format(b.c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select table straight_join
SELECT STRAIGHT_JOIN a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s')
FROM ta_l a, tb_l b WHERE a.a = b.a ORDER BY a.a;
a b date_format(b.c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select sql_small_result
SELECT SQL_SMALL_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select sql_big_result
SELECT SQL_BIG_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select sql_buffer_result
SELECT SQL_BUFFER_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select sql_cache
SELECT SQL_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select sql_no_cache
SELECT SQL_NO_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select sql_calc_found_rows
SELECT SQL_CALC_FOUND_ROWS a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
ORDER BY a LIMIT 4;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
SELECT found_rows();
found_rows()
5
select high_priority
SELECT HIGH_PRIORITY a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select distinct
SELECT DISTINCT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select count
SELECT count(*) FROM ta_l ORDER BY a;
count(*)
5
select table join not use index
SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM tb_l a WHERE
EXISTS (SELECT * FROM ta_l b WHERE b.b = a.b) ORDER BY a.a;
a b date_format(a.c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
select using pushdown
SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
a.b = 'g' ORDER BY a.a;
a b date_format(a.c, '%Y-%m-%d %H:%i:%s')
2 g 2000-02-01 00:00:00
select using index and pushdown
SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
a.a > 0 AND a.b = 'g' ORDER BY a.a;
a b date_format(a.c, '%Y-%m-%d %H:%i:%s')
2 g 2000-02-01 00:00:00
insert
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
2 e 2008-01-01 23:59:59
insert select
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
insert select a
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
'e', '2008-01-01 23:59:59');
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 e 2008-01-01 23:59:59
insert low_priority
TRUNCATE TABLE ta_l;
INSERT LOW_PRIORITY INTO ta_l (a, b, c) values (2, 'e', '2008-01-01 23:59:59');
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
2 e 2008-01-01 23:59:59
insert high_priority
TRUNCATE TABLE ta_l;
INSERT HIGH_PRIORITY INTO ta_l (a, b, c) VALUES (2, 'e',
'2008-01-01 23:59:59');
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
2 e 2008-01-01 23:59:59
insert ignore
INSERT IGNORE INTO ta_l (a, b, c) VALUES (2, 'd', '2009-02-02 01:01:01');
Warnings:
Warning 1062 Duplicate entry '2' for key 'PRIMARY'
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
2 e 2008-01-01 23:59:59
insert update (insert)
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
2 e 2008-01-01 23:59:59
insert update (update)
INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
2 f 2005-08-08 11:11:11
replace
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
REPLACE INTO ta_l (a, b, c) VALUES (2, 'f', '2008-02-02 02:02:02');
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
2 f 2008-02-02 02:02:02
replace select
REPLACE INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
replace select a
REPLACE INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
'e', '2008-01-01 23:59:59');
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 e 2008-01-01 23:59:59
2 g 2000-02-01 00:00:00
3 j 2007-05-04 20:03:11
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
replace low_priority
REPLACE LOW_PRIORITY INTO ta_l (a, b, c) VALUES (3, 'g',
'2009-03-03 03:03:03');
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 e 2008-01-01 23:59:59
2 g 2000-02-01 00:00:00
3 g 2009-03-03 03:03:03
4 i 2003-10-30 05:01:03
5 h 2001-10-31 23:59:59
update
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
(2, 'e', '2008-01-01 23:59:59');
UPDATE ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 e 2008-01-01 23:59:59
2 f 2008-02-02 02:02:02
update select
UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a IN (SELECT a FROM
tb_l);
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 g 2009-03-03 03:03:03
2 g 2009-03-03 03:03:03
update select a
UPDATE ta_l SET b = 'h', c = '2010-04-04 04:04:04' WHERE a = (SELECT a FROM
tb_l ORDER BY a LIMIT 1);
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 h 2010-04-04 04:04:04
2 g 2009-03-03 03:03:03
update join
UPDATE ta_l a, tb_l b SET a.b = b.b, a.c = b.c WHERE a.a = b.a;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 f 2008-07-01 10:21:39
2 g 2000-02-01 00:00:00
update join a
UPDATE ta_l a, tb_l b SET a.b = 'g', a.c = '2009-03-03 03:03:03' WHERE
a.a = b.a;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 g 2009-03-03 03:03:03
2 g 2009-03-03 03:03:03
update low_priority
UPDATE LOW_PRIORITY ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 g 2009-03-03 03:03:03
2 f 2008-02-02 02:02:02
update ignore
UPDATE IGNORE ta_l SET a = 1, b = 'g', c = '2009-03-03 03:03:03' WHERE a = 2;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 g 2009-03-03 03:03:03
2 f 2008-02-02 02:02:02
update pushdown
update ta_l set b = 'j', c = '2009-03-03 03:03:03' where b = 'f';
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 g 2009-03-03 03:03:03
2 j 2009-03-03 03:03:03
update index pushdown
UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'j';
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 g 2009-03-03 03:03:03
2 g 2009-03-03 03:03:03
delete
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
(10, 'j', '2008-01-01 23:59:59');
DELETE FROM ta_l WHERE a = 2;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 e 2008-01-01 23:59:59
3 e 2008-01-01 23:59:59
4 e 2008-01-01 23:59:59
5 e 2008-01-01 23:59:59
6 e 2008-01-01 23:59:59
7 e 2008-01-01 23:59:59
8 e 2008-01-01 23:59:59
9 e 2008-01-01 23:59:59
10 j 2008-01-01 23:59:59
delete all
DELETE FROM ta_l;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
delete select
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
(10, 'j', '2008-01-01 23:59:59');
DELETE FROM ta_l WHERE a IN (SELECT a FROM tb_l);
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
6 e 2008-01-01 23:59:59
7 e 2008-01-01 23:59:59
8 e 2008-01-01 23:59:59
9 e 2008-01-01 23:59:59
10 j 2008-01-01 23:59:59
delete select a
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
(10, 'j', '2008-01-01 23:59:59');
DELETE FROM ta_l WHERE a = (SELECT a FROM tb_l ORDER BY a LIMIT 1);
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
2 e 2008-01-01 23:59:59
3 e 2008-01-01 23:59:59
4 e 2008-01-01 23:59:59
5 e 2008-01-01 23:59:59
6 e 2008-01-01 23:59:59
7 e 2008-01-01 23:59:59
8 e 2008-01-01 23:59:59
9 e 2008-01-01 23:59:59
10 j 2008-01-01 23:59:59
delete join
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
(10, 'j', '2008-01-01 23:59:59');
DELETE a FROM ta_l a, (SELECT a FROM tb_l ORDER BY a) b WHERE a.a = b.a;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
6 e 2008-01-01 23:59:59
7 e 2008-01-01 23:59:59
8 e 2008-01-01 23:59:59
9 e 2008-01-01 23:59:59
10 j 2008-01-01 23:59:59
delete low_priority
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
(10, 'j', '2008-01-01 23:59:59');
DELETE LOW_PRIORITY FROM ta_l WHERE a = 2;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 e 2008-01-01 23:59:59
3 e 2008-01-01 23:59:59
4 e 2008-01-01 23:59:59
5 e 2008-01-01 23:59:59
6 e 2008-01-01 23:59:59
7 e 2008-01-01 23:59:59
8 e 2008-01-01 23:59:59
9 e 2008-01-01 23:59:59
10 j 2008-01-01 23:59:59
delete ignore
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
(10, 'j', '2008-01-01 23:59:59');
DELETE IGNORE FROM ta_l WHERE a = 2;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 e 2008-01-01 23:59:59
3 e 2008-01-01 23:59:59
4 e 2008-01-01 23:59:59
5 e 2008-01-01 23:59:59
6 e 2008-01-01 23:59:59
7 e 2008-01-01 23:59:59
8 e 2008-01-01 23:59:59
9 e 2008-01-01 23:59:59
10 j 2008-01-01 23:59:59
delete quick
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
(10, 'j', '2008-01-01 23:59:59');
DELETE QUICK FROM ta_l WHERE a = 2;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
1 e 2008-01-01 23:59:59
3 e 2008-01-01 23:59:59
4 e 2008-01-01 23:59:59
5 e 2008-01-01 23:59:59
6 e 2008-01-01 23:59:59
7 e 2008-01-01 23:59:59
8 e 2008-01-01 23:59:59
9 e 2008-01-01 23:59:59
10 j 2008-01-01 23:59:59
delete pushdown
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
(10, 'j', '2008-01-01 23:59:59');
DELETE FROM ta_l WHERE b = 'e';
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
10 j 2008-01-01 23:59:59
delete index pushdown
TRUNCATE TABLE ta_l;
INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
(10, 'j', '2008-01-01 23:59:59');
DELETE FROM ta_l WHERE a > 0 AND b = 'e';
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
10 j 2008-01-01 23:59:59
truncate
TRUNCATE TABLE ta_l;
SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
a b date_format(c, '%Y-%m-%d %H:%i:%s')
deinit
DROP DATABASE IF EXISTS auto_test_local;
DROP DATABASE IF EXISTS auto_test_remote;
DROP DATABASE IF EXISTS auto_test_remote2;
for master_1
for child2
child2_1
child2_2
child2_3
for child3
child3_1
child3_2
child3_3
end of test
|
