summaryrefslogtreecommitdiff
path: root/mysql-test/main/selectivity.result
blob: 749c74f431bc262e7a3fb480e5e94d1c19103524 (plain)
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
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
drop table if exists t0,t1,t2,t3;
select @@global.use_stat_tables;
@@global.use_stat_tables
COMPLEMENTARY
select @@session.use_stat_tables;
@@session.use_stat_tables
COMPLEMENTARY
set @save_use_stat_tables=@@use_stat_tables;
set use_stat_tables='preferably';
set @save_optimizer_use_condition_selectivity=@@optimizer_use_condition_selectivity;
set @save_histogram_size=@@histogram_size;
set @save_histogram_type=@@histogram_type;
set join_cache_level=2;
set @@global.histogram_size=0,@@local.histogram_size=0;
set histogram_type='single_prec_hb';
set optimizer_use_condition_selectivity=3;
create table t1 (a int);
insert into t1 values
(9), (3), (2), (NULL), (NULL), (2), (NULL), (1), (5), (NULL);
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
select * from mysql.column_stats;
db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
test	t1	a	1	9	0.4000	4.0000	1.2000	0	NULL	NULL
flush table t1;
explain extended 
select * from t1 where a is null;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	40.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is null
explain extended 
select * from t1 where a is not null;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	60.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is not null
drop table t1;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP DATABASE IF EXISTS dbt3_s001;
CREATE DATABASE dbt3_s001;
use dbt3_s001;
=== Q2 ===
set optimizer_use_condition_selectivity=5;
explain extended
select
s_acctbal, s_name, n_name, p_partkey, p_mfgr, s_address, s_phone, s_comment
from
part, supplier, partsupp, nation, region
where
p_partkey = ps_partkey
and s_suppkey = ps_suppkey
and p_size = 9
and p_type like '%TIN'
	and s_nationkey = n_nationkey
and n_regionkey = r_regionkey
and r_name = 'ASIA'
	and ps_supplycost = (
select
min(ps_supplycost)
from
partsupp, supplier, nation, region
where
p_partkey = ps_partkey
and s_suppkey = ps_suppkey
and s_nationkey = n_nationkey
and n_regionkey = r_regionkey
and r_name = 'ASIA'
	)
order by
s_acctbal desc, n_name, s_name, p_partkey;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	part	ALL	PRIMARY	NULL	NULL	NULL	200	0.31	Using where; Using temporary; Using filesort
1	PRIMARY	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	i_ps_partkey	4	dbt3_s001.part.p_partkey	3	100.00	Using where
1	PRIMARY	supplier	eq_ref	PRIMARY,i_s_nationkey	PRIMARY	4	dbt3_s001.partsupp.ps_suppkey	1	100.00	Using where
1	PRIMARY	nation	eq_ref	PRIMARY,i_n_regionkey	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	100.00	Using where
1	PRIMARY	region	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.nation.n_regionkey	1	20.00	Using where
2	DEPENDENT SUBQUERY	region	ALL	PRIMARY	NULL	NULL	NULL	5	20.00	Using where
2	DEPENDENT SUBQUERY	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	i_ps_partkey	4	dbt3_s001.part.p_partkey	3	100.00	
2	DEPENDENT SUBQUERY	supplier	eq_ref	PRIMARY,i_s_nationkey	PRIMARY	4	dbt3_s001.partsupp.ps_suppkey	1	100.00	Using where
2	DEPENDENT SUBQUERY	nation	eq_ref	PRIMARY,i_n_regionkey	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	100.00	Using where
Warnings:
Note	1276	Field or reference 'dbt3_s001.part.p_partkey' of SELECT #2 was resolved in SELECT #1
Note	1003	/* select#1 */ select `dbt3_s001`.`supplier`.`s_acctbal` AS `s_acctbal`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`nation`.`n_name` AS `n_name`,`dbt3_s001`.`part`.`p_partkey` AS `p_partkey`,`dbt3_s001`.`part`.`p_mfgr` AS `p_mfgr`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`dbt3_s001`.`supplier`.`s_comment` AS `s_comment` from `dbt3_s001`.`part` join `dbt3_s001`.`supplier` join `dbt3_s001`.`partsupp` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`part`.`p_size` = 9 and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`region`.`r_regionkey` = `dbt3_s001`.`nation`.`n_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_type` like '%TIN' and `dbt3_s001`.`partsupp`.`ps_supplycost` = <expr_cache><`dbt3_s001`.`part`.`p_partkey`>((/* select#2 */ select min(`dbt3_s001`.`partsupp`.`ps_supplycost`) from `dbt3_s001`.`partsupp` join `dbt3_s001`.`supplier` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey`)) order by `dbt3_s001`.`supplier`.`s_acctbal` desc,`dbt3_s001`.`nation`.`n_name`,`dbt3_s001`.`supplier`.`s_name`,`dbt3_s001`.`part`.`p_partkey`
set optimizer_use_condition_selectivity=4;
explain extended
select
s_acctbal, s_name, n_name, p_partkey, p_mfgr, s_address, s_phone, s_comment
from
part, supplier, partsupp, nation, region
where
p_partkey = ps_partkey
and s_suppkey = ps_suppkey
and p_size = 9
and p_type like '%TIN'
	and s_nationkey = n_nationkey
and n_regionkey = r_regionkey
and r_name = 'ASIA'
	and ps_supplycost = (
select
min(ps_supplycost)
from
partsupp, supplier, nation, region
where
p_partkey = ps_partkey
and s_suppkey = ps_suppkey
and s_nationkey = n_nationkey
and n_regionkey = r_regionkey
and r_name = 'ASIA'
	)
order by
s_acctbal desc, n_name, s_name, p_partkey;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	region	ALL	PRIMARY	NULL	NULL	NULL	5	20.00	Using where; Using temporary; Using filesort
1	PRIMARY	nation	ref	PRIMARY,i_n_regionkey	i_n_regionkey	5	dbt3_s001.region.r_regionkey	5	100.00	
1	PRIMARY	supplier	ref	PRIMARY,i_s_nationkey	i_s_nationkey	5	dbt3_s001.nation.n_nationkey	1	100.00	
1	PRIMARY	part	ALL	PRIMARY	NULL	NULL	NULL	200	2.08	Using where; Using join buffer (flat, BNL join)
1	PRIMARY	partsupp	eq_ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	8	dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey	1	100.00	Using where
2	DEPENDENT SUBQUERY	region	ALL	PRIMARY	NULL	NULL	NULL	5	20.00	Using where
2	DEPENDENT SUBQUERY	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	i_ps_partkey	4	dbt3_s001.part.p_partkey	3	100.00	
2	DEPENDENT SUBQUERY	supplier	eq_ref	PRIMARY,i_s_nationkey	PRIMARY	4	dbt3_s001.partsupp.ps_suppkey	1	100.00	Using where
2	DEPENDENT SUBQUERY	nation	eq_ref	PRIMARY,i_n_regionkey	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	100.00	Using where
Warnings:
Note	1276	Field or reference 'dbt3_s001.part.p_partkey' of SELECT #2 was resolved in SELECT #1
Note	1003	/* select#1 */ select `dbt3_s001`.`supplier`.`s_acctbal` AS `s_acctbal`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`nation`.`n_name` AS `n_name`,`dbt3_s001`.`part`.`p_partkey` AS `p_partkey`,`dbt3_s001`.`part`.`p_mfgr` AS `p_mfgr`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`dbt3_s001`.`supplier`.`s_comment` AS `s_comment` from `dbt3_s001`.`part` join `dbt3_s001`.`supplier` join `dbt3_s001`.`partsupp` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`part`.`p_size` = 9 and `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_type` like '%TIN' and `dbt3_s001`.`partsupp`.`ps_supplycost` = <expr_cache><`dbt3_s001`.`part`.`p_partkey`>((/* select#2 */ select min(`dbt3_s001`.`partsupp`.`ps_supplycost`) from `dbt3_s001`.`partsupp` join `dbt3_s001`.`supplier` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey`)) order by `dbt3_s001`.`supplier`.`s_acctbal` desc,`dbt3_s001`.`nation`.`n_name`,`dbt3_s001`.`supplier`.`s_name`,`dbt3_s001`.`part`.`p_partkey`
=== Q15 ===
create view revenue0 (supplier_no, total_revenue) as
select l_suppkey, sum(l_extendedprice * (1 - l_discount))
from lineitem
where
l_shipdate >= '1995-08-01'
    and l_shipdate < date_add('1995-08-01', interval 90 day)
group by l_suppkey;
set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='index_condition_pushdown=off';
set optimizer_use_condition_selectivity=1;
EXPLAIN EXTENDED select s_suppkey, s_name, s_address, s_phone, total_revenue
from supplier, revenue0
where s_suppkey = supplier_no
and total_revenue = (select max(total_revenue) from revenue0)
order by s_suppkey;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	supplier	ALL	PRIMARY	NULL	NULL	NULL	10	100.00	Using filesort
1	PRIMARY	<derived3>	ref	key0	key0	5	dbt3_s001.supplier.s_suppkey	10	100.00	Using where
3	DERIVED	lineitem	range	i_l_shipdate,i_l_suppkey	i_l_shipdate	4	NULL	269	100.00	Using where; Using temporary; Using filesort
2	SUBQUERY	<derived4>	ALL	NULL	NULL	NULL	NULL	269	100.00	
4	DERIVED	lineitem	range	i_l_shipdate	i_l_shipdate	4	NULL	269	100.00	Using where; Using temporary; Using filesort
Warnings:
Note	1003	/* select#1 */ select `dbt3_s001`.`supplier`.`s_suppkey` AS `s_suppkey`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`revenue0`.`total_revenue` AS `total_revenue` from `dbt3_s001`.`supplier` join `dbt3_s001`.`revenue0` where `revenue0`.`supplier_no` = `dbt3_s001`.`supplier`.`s_suppkey` and `revenue0`.`total_revenue` = (/* select#2 */ select max(`revenue0`.`total_revenue`) from `dbt3_s001`.`revenue0`) order by `dbt3_s001`.`supplier`.`s_suppkey`
select s_suppkey, s_name, s_address, s_phone, total_revenue
from supplier, revenue0
where s_suppkey = supplier_no
and total_revenue = (select max(total_revenue) from revenue0)
order by s_suppkey;
s_suppkey	s_name	s_address	s_phone	total_revenue
1	Supplier#000000001	 N kD4on9OM Ipw3,gf0JBoQDd7tgrzrddZ	27-918-335-1736	729084.7773
set optimizer_use_condition_selectivity=3;
EXPLAIN EXTENDED select s_suppkey, s_name, s_address, s_phone, total_revenue
from supplier, revenue0
where s_suppkey = supplier_no
and total_revenue = (select max(total_revenue) from revenue0)
order by s_suppkey;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	supplier	ALL	PRIMARY	NULL	NULL	NULL	10	100.00	Using filesort
1	PRIMARY	<derived3>	ref	key0	key0	5	dbt3_s001.supplier.s_suppkey	10	100.00	Using where
3	DERIVED	lineitem	range	i_l_shipdate,i_l_suppkey	i_l_shipdate	4	NULL	269	100.00	Using where; Using temporary; Using filesort
2	SUBQUERY	<derived4>	ALL	NULL	NULL	NULL	NULL	269	100.00	
4	DERIVED	lineitem	range	i_l_shipdate	i_l_shipdate	4	NULL	269	100.00	Using where; Using temporary; Using filesort
Warnings:
Note	1003	/* select#1 */ select `dbt3_s001`.`supplier`.`s_suppkey` AS `s_suppkey`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`revenue0`.`total_revenue` AS `total_revenue` from `dbt3_s001`.`supplier` join `dbt3_s001`.`revenue0` where `revenue0`.`supplier_no` = `dbt3_s001`.`supplier`.`s_suppkey` and `revenue0`.`total_revenue` = (/* select#2 */ select max(`revenue0`.`total_revenue`) from `dbt3_s001`.`revenue0`) order by `dbt3_s001`.`supplier`.`s_suppkey`
select s_suppkey, s_name, s_address, s_phone, total_revenue
from supplier, revenue0
where s_suppkey = supplier_no
and total_revenue = (select max(total_revenue) from revenue0)
order by s_suppkey;
s_suppkey	s_name	s_address	s_phone	total_revenue
1	Supplier#000000001	 N kD4on9OM Ipw3,gf0JBoQDd7tgrzrddZ	27-918-335-1736	729084.7773
set optimizer_switch=@save_optimizer_switch;
drop view revenue0;
=== Q16 ===
set optimizer_use_condition_selectivity=1;
EXPLAIN EXTENDED select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt
from partsupp, part
where p_partkey = ps_partkey
and p_brand <> 'Brand#11'
  and p_type not like 'SMALL POLISHED%'
  and p_size in (49, 37, 27, 5, 40, 6, 22, 8)
and ps_suppkey not in (select s_suppkey from supplier
where s_comment like '%Customer%Complaints%')
group by p_brand, p_type, p_size
order by supplier_cnt desc, p_brand, p_type, p_size;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	part	ALL	PRIMARY	NULL	NULL	NULL	200	100.00	Using where; Using temporary; Using filesort
1	PRIMARY	partsupp	ref	PRIMARY,i_ps_partkey	PRIMARY	4	dbt3_s001.part.p_partkey	3	100.00	Using where; Using index
2	MATERIALIZED	supplier	ALL	PRIMARY	NULL	NULL	NULL	10	100.00	Using where
Warnings:
Note	1003	/* select#1 */ select `dbt3_s001`.`part`.`p_brand` AS `p_brand`,`dbt3_s001`.`part`.`p_type` AS `p_type`,`dbt3_s001`.`part`.`p_size` AS `p_size`,count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) AS `supplier_cnt` from `dbt3_s001`.`partsupp` join `dbt3_s001`.`part` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`part`.`p_brand` <> 'Brand#11' and `dbt3_s001`.`part`.`p_type`  not like 'SMALL POLISHED%' and `dbt3_s001`.`part`.`p_size` in (49,37,27,5,40,6,22,8) and !<expr_cache><`dbt3_s001`.`partsupp`.`ps_suppkey`>(<in_optimizer>(`dbt3_s001`.`partsupp`.`ps_suppkey`,`dbt3_s001`.`partsupp`.`ps_suppkey` in ( <materialize> (/* select#2 */ select `dbt3_s001`.`supplier`.`s_suppkey` from `dbt3_s001`.`supplier` where `dbt3_s001`.`supplier`.`s_comment` like '%Customer%Complaints%' ), <primary_index_lookup>(`dbt3_s001`.`partsupp`.`ps_suppkey` in <temporary table> on distinct_key where `dbt3_s001`.`partsupp`.`ps_suppkey` = `<subquery2>`.`s_suppkey`)))) group by `dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size` order by count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) desc,`dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size`
select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt
from partsupp, part
where p_partkey = ps_partkey
and p_brand <> 'Brand#11'
  and p_type not like 'SMALL POLISHED%'
  and p_size in (49, 37, 27, 5, 40, 6, 22, 8)
and ps_suppkey not in (select s_suppkey from supplier
where s_comment like '%Customer%Complaints%')
group by p_brand, p_type, p_size
order by supplier_cnt desc, p_brand, p_type, p_size;
p_brand	p_type	p_size	supplier_cnt
Brand#21	MEDIUM ANODIZED TIN	8	4
Brand#22	PROMO PLATED TIN	5	4
Brand#24	MEDIUM BURNISHED NICKEL	6	4
Brand#24	SMALL ANODIZED STEEL	40	4
Brand#32	MEDIUM BURNISHED BRASS	49	4
Brand#33	MEDIUM POLISHED BRASS	49	4
Brand#41	STANDARD BRUSHED NICKEL	40	4
Brand#44	PROMO POLISHED STEEL	5	4
Brand#45	PROMO ANODIZED BRASS	22	4
Brand#53	STANDARD BRUSHED STEEL	27	4
Brand#54	MEDIUM POLISHED BRASS	22	4
Brand#54	STANDARD ANODIZED BRASS	22	4
Brand#13	LARGE BRUSHED STEEL	8	2
Brand#25	ECONOMY BURNISHED COPPER	27	2
Brand#44	STANDARD PLATED TIN	37	1
Brand#51	ECONOMY POLISHED STEEL	49	1
set optimizer_use_condition_selectivity=3;
EXPLAIN EXTENDED select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt
from partsupp, part
where p_partkey = ps_partkey
and p_brand <> 'Brand#11'
  and p_type not like 'SMALL POLISHED%'
  and p_size in (49, 37, 27, 5, 40, 6, 22, 8)
and ps_suppkey not in (select s_suppkey from supplier
where s_comment like '%Customer%Complaints%')
group by p_brand, p_type, p_size
order by supplier_cnt desc, p_brand, p_type, p_size;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	part	ALL	PRIMARY	NULL	NULL	NULL	200	16.67	Using where; Using temporary; Using filesort
1	PRIMARY	partsupp	ref	PRIMARY,i_ps_partkey	PRIMARY	4	dbt3_s001.part.p_partkey	3	100.00	Using where; Using index
2	MATERIALIZED	supplier	ALL	PRIMARY	NULL	NULL	NULL	10	100.00	Using where
Warnings:
Note	1003	/* select#1 */ select `dbt3_s001`.`part`.`p_brand` AS `p_brand`,`dbt3_s001`.`part`.`p_type` AS `p_type`,`dbt3_s001`.`part`.`p_size` AS `p_size`,count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) AS `supplier_cnt` from `dbt3_s001`.`partsupp` join `dbt3_s001`.`part` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`part`.`p_brand` <> 'Brand#11' and `dbt3_s001`.`part`.`p_type`  not like 'SMALL POLISHED%' and `dbt3_s001`.`part`.`p_size` in (49,37,27,5,40,6,22,8) and !<expr_cache><`dbt3_s001`.`partsupp`.`ps_suppkey`>(<in_optimizer>(`dbt3_s001`.`partsupp`.`ps_suppkey`,`dbt3_s001`.`partsupp`.`ps_suppkey` in ( <materialize> (/* select#2 */ select `dbt3_s001`.`supplier`.`s_suppkey` from `dbt3_s001`.`supplier` where `dbt3_s001`.`supplier`.`s_comment` like '%Customer%Complaints%' ), <primary_index_lookup>(`dbt3_s001`.`partsupp`.`ps_suppkey` in <temporary table> on distinct_key where `dbt3_s001`.`partsupp`.`ps_suppkey` = `<subquery2>`.`s_suppkey`)))) group by `dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size` order by count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) desc,`dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size`
select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt
from partsupp, part
where p_partkey = ps_partkey
and p_brand <> 'Brand#11'
  and p_type not like 'SMALL POLISHED%'
  and p_size in (49, 37, 27, 5, 40, 6, 22, 8)
and ps_suppkey not in (select s_suppkey from supplier
where s_comment like '%Customer%Complaints%')
group by p_brand, p_type, p_size
order by supplier_cnt desc, p_brand, p_type, p_size;
p_brand	p_type	p_size	supplier_cnt
Brand#21	MEDIUM ANODIZED TIN	8	4
Brand#22	PROMO PLATED TIN	5	4
Brand#24	MEDIUM BURNISHED NICKEL	6	4
Brand#24	SMALL ANODIZED STEEL	40	4
Brand#32	MEDIUM BURNISHED BRASS	49	4
Brand#33	MEDIUM POLISHED BRASS	49	4
Brand#41	STANDARD BRUSHED NICKEL	40	4
Brand#44	PROMO POLISHED STEEL	5	4
Brand#45	PROMO ANODIZED BRASS	22	4
Brand#53	STANDARD BRUSHED STEEL	27	4
Brand#54	MEDIUM POLISHED BRASS	22	4
Brand#54	STANDARD ANODIZED BRASS	22	4
Brand#13	LARGE BRUSHED STEEL	8	2
Brand#25	ECONOMY BURNISHED COPPER	27	2
Brand#44	STANDARD PLATED TIN	37	1
Brand#51	ECONOMY POLISHED STEEL	49	1
set optimizer_use_condition_selectivity=4;
EXPLAIN EXTENDED select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt
from partsupp, part
where p_partkey = ps_partkey
and p_brand <> 'Brand#11'
  and p_type not like 'SMALL POLISHED%'
  and p_size in (49, 37, 27, 5, 40, 6, 22, 8)
and ps_suppkey not in (select s_suppkey from supplier
where s_comment like '%Customer%Complaints%')
group by p_brand, p_type, p_size
order by supplier_cnt desc, p_brand, p_type, p_size;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	part	ALL	PRIMARY	NULL	NULL	NULL	200	16.67	Using where; Using temporary; Using filesort
1	PRIMARY	partsupp	ref	PRIMARY,i_ps_partkey	PRIMARY	4	dbt3_s001.part.p_partkey	3	100.00	Using where; Using index
2	MATERIALIZED	supplier	ALL	PRIMARY	NULL	NULL	NULL	10	100.00	Using where
Warnings:
Note	1003	/* select#1 */ select `dbt3_s001`.`part`.`p_brand` AS `p_brand`,`dbt3_s001`.`part`.`p_type` AS `p_type`,`dbt3_s001`.`part`.`p_size` AS `p_size`,count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) AS `supplier_cnt` from `dbt3_s001`.`partsupp` join `dbt3_s001`.`part` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`part`.`p_brand` <> 'Brand#11' and `dbt3_s001`.`part`.`p_type`  not like 'SMALL POLISHED%' and `dbt3_s001`.`part`.`p_size` in (49,37,27,5,40,6,22,8) and !<expr_cache><`dbt3_s001`.`partsupp`.`ps_suppkey`>(<in_optimizer>(`dbt3_s001`.`partsupp`.`ps_suppkey`,`dbt3_s001`.`partsupp`.`ps_suppkey` in ( <materialize> (/* select#2 */ select `dbt3_s001`.`supplier`.`s_suppkey` from `dbt3_s001`.`supplier` where `dbt3_s001`.`supplier`.`s_comment` like '%Customer%Complaints%' ), <primary_index_lookup>(`dbt3_s001`.`partsupp`.`ps_suppkey` in <temporary table> on distinct_key where `dbt3_s001`.`partsupp`.`ps_suppkey` = `<subquery2>`.`s_suppkey`)))) group by `dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size` order by count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) desc,`dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size`
select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt
from partsupp, part
where p_partkey = ps_partkey
and p_brand <> 'Brand#11'
  and p_type not like 'SMALL POLISHED%'
  and p_size in (49, 37, 27, 5, 40, 6, 22, 8)
and ps_suppkey not in (select s_suppkey from supplier
where s_comment like '%Customer%Complaints%')
group by p_brand, p_type, p_size
order by supplier_cnt desc, p_brand, p_type, p_size;
p_brand	p_type	p_size	supplier_cnt
Brand#21	MEDIUM ANODIZED TIN	8	4
Brand#22	PROMO PLATED TIN	5	4
Brand#24	MEDIUM BURNISHED NICKEL	6	4
Brand#24	SMALL ANODIZED STEEL	40	4
Brand#32	MEDIUM BURNISHED BRASS	49	4
Brand#33	MEDIUM POLISHED BRASS	49	4
Brand#41	STANDARD BRUSHED NICKEL	40	4
Brand#44	PROMO POLISHED STEEL	5	4
Brand#45	PROMO ANODIZED BRASS	22	4
Brand#53	STANDARD BRUSHED STEEL	27	4
Brand#54	MEDIUM POLISHED BRASS	22	4
Brand#54	STANDARD ANODIZED BRASS	22	4
Brand#13	LARGE BRUSHED STEEL	8	2
Brand#25	ECONOMY BURNISHED COPPER	27	2
Brand#44	STANDARD PLATED TIN	37	1
Brand#51	ECONOMY POLISHED STEEL	49	1
=== Q18 ===
set optimizer_use_condition_selectivity=1;
EXPLAIN EXTENDED select 
c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice, sum(l_quantity)
from customer, orders, lineitem
where
o_orderkey in (select l_orderkey from lineitem
group by l_orderkey having sum(l_quantity) > 250)
and c_custkey = o_custkey
and o_orderkey = l_orderkey
group by c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice
order by o_totalprice desc, o_orderdate;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	orders	ALL	PRIMARY,i_o_custkey	NULL	NULL	NULL	1500	100.00	Using where; Using temporary; Using filesort
1	PRIMARY	customer	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.orders.o_custkey	1	100.00	
1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	dbt3_s001.orders.o_orderkey	1	100.00	
1	PRIMARY	lineitem	ref	PRIMARY,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey_quantity	4	dbt3_s001.orders.o_orderkey	4	100.00	Using index
2	MATERIALIZED	lineitem	index	NULL	i_l_orderkey_quantity	13	NULL	6005	100.00	Using index
Warnings:
Note	1003	/* select#1 */ select `dbt3_s001`.`customer`.`c_name` AS `c_name`,`dbt3_s001`.`customer`.`c_custkey` AS `c_custkey`,`dbt3_s001`.`orders`.`o_orderkey` AS `o_orderkey`,`dbt3_s001`.`orders`.`o_orderDATE` AS `o_orderdate`,`dbt3_s001`.`orders`.`o_totalprice` AS `o_totalprice`,sum(`dbt3_s001`.`lineitem`.`l_quantity`) AS `sum(l_quantity)` from  <materialize> (/* select#2 */ select `dbt3_s001`.`lineitem`.`l_orderkey` from `dbt3_s001`.`lineitem` group by `dbt3_s001`.`lineitem`.`l_orderkey` having sum(`dbt3_s001`.`lineitem`.`l_quantity`) > 250) join `dbt3_s001`.`customer` join `dbt3_s001`.`orders` join `dbt3_s001`.`lineitem` where `dbt3_s001`.`customer`.`c_custkey` = `dbt3_s001`.`orders`.`o_custkey` and `<subquery2>`.`l_orderkey` = `dbt3_s001`.`orders`.`o_orderkey` and `dbt3_s001`.`lineitem`.`l_orderkey` = `dbt3_s001`.`orders`.`o_orderkey` group by `dbt3_s001`.`customer`.`c_name`,`dbt3_s001`.`customer`.`c_custkey`,`dbt3_s001`.`orders`.`o_orderkey`,`dbt3_s001`.`orders`.`o_orderDATE`,`dbt3_s001`.`orders`.`o_totalprice` order by `dbt3_s001`.`orders`.`o_totalprice` desc,`dbt3_s001`.`orders`.`o_orderDATE`
select 
c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice, sum(l_quantity)
from customer, orders, lineitem
where
o_orderkey in (select l_orderkey from lineitem
group by l_orderkey having sum(l_quantity) > 250)
and c_custkey = o_custkey
and o_orderkey = l_orderkey
group by c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice
order by o_totalprice desc, o_orderdate;
c_name	c_custkey	o_orderkey	o_orderdate	o_totalprice	sum(l_quantity)
Customer#000000070	70	2567	1998-02-27	263411.29	266
Customer#000000010	10	4421	1997-04-04	258779.02	255
Customer#000000082	82	3460	1995-10-03	245976.74	254
Customer#000000068	68	2208	1995-05-01	245388.06	256
set optimizer_use_condition_selectivity=3;
EXPLAIN EXTENDED select 
c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice, sum(l_quantity)
from customer, orders, lineitem
where
o_orderkey in (select l_orderkey from lineitem
group by l_orderkey having sum(l_quantity) > 250)
and c_custkey = o_custkey
and o_orderkey = l_orderkey
group by c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice
order by o_totalprice desc, o_orderdate;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	orders	ALL	PRIMARY,i_o_custkey	NULL	NULL	NULL	1500	100.00	Using where; Using temporary; Using filesort
1	PRIMARY	customer	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.orders.o_custkey	1	100.00	
1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	dbt3_s001.orders.o_orderkey	1	100.00	
1	PRIMARY	lineitem	ref	PRIMARY,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey_quantity	4	dbt3_s001.orders.o_orderkey	4	100.00	Using index
2	MATERIALIZED	lineitem	index	NULL	i_l_orderkey_quantity	13	NULL	6005	100.00	Using index
Warnings:
Note	1003	/* select#1 */ select `dbt3_s001`.`customer`.`c_name` AS `c_name`,`dbt3_s001`.`customer`.`c_custkey` AS `c_custkey`,`dbt3_s001`.`orders`.`o_orderkey` AS `o_orderkey`,`dbt3_s001`.`orders`.`o_orderDATE` AS `o_orderdate`,`dbt3_s001`.`orders`.`o_totalprice` AS `o_totalprice`,sum(`dbt3_s001`.`lineitem`.`l_quantity`) AS `sum(l_quantity)` from  <materialize> (/* select#2 */ select `dbt3_s001`.`lineitem`.`l_orderkey` from `dbt3_s001`.`lineitem` group by `dbt3_s001`.`lineitem`.`l_orderkey` having sum(`dbt3_s001`.`lineitem`.`l_quantity`) > 250) join `dbt3_s001`.`customer` join `dbt3_s001`.`orders` join `dbt3_s001`.`lineitem` where `dbt3_s001`.`customer`.`c_custkey` = `dbt3_s001`.`orders`.`o_custkey` and `<subquery2>`.`l_orderkey` = `dbt3_s001`.`orders`.`o_orderkey` and `dbt3_s001`.`lineitem`.`l_orderkey` = `dbt3_s001`.`orders`.`o_orderkey` group by `dbt3_s001`.`customer`.`c_name`,`dbt3_s001`.`customer`.`c_custkey`,`dbt3_s001`.`orders`.`o_orderkey`,`dbt3_s001`.`orders`.`o_orderDATE`,`dbt3_s001`.`orders`.`o_totalprice` order by `dbt3_s001`.`orders`.`o_totalprice` desc,`dbt3_s001`.`orders`.`o_orderDATE`
select 
c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice, sum(l_quantity)
from customer, orders, lineitem
where
o_orderkey in (select l_orderkey from lineitem
group by l_orderkey having sum(l_quantity) > 250)
and c_custkey = o_custkey
and o_orderkey = l_orderkey
group by c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice
order by o_totalprice desc, o_orderdate;
c_name	c_custkey	o_orderkey	o_orderdate	o_totalprice	sum(l_quantity)
Customer#000000070	70	2567	1998-02-27	263411.29	266
Customer#000000010	10	4421	1997-04-04	258779.02	255
Customer#000000082	82	3460	1995-10-03	245976.74	254
Customer#000000068	68	2208	1995-05-01	245388.06	256
=== Q22 ===
set optimizer_use_condition_selectivity=1;
EXPLAIN EXTENDED select cntrycode, count(*) as numcust, sum(c_acctbal) as totacctbal
from  (
select substr(c_phone, 1, 2) as cntrycode, c_acctbal
from customer
where
substr(c_phone, 1, 2) in ('10', '20', '14', '19', '11', '28', '25')
and c_acctbal > (select avg(c_acctbal) from customer
where c_acctbal > 0.00
and substr(c_phone, 1, 2) in
('10', '20', '14', '19', '11', '28', '25'))
and not exists (select * from orders where o_custkey = c_custkey)
) as vip
group by cntrycode
order by cntrycode;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	customer	ALL	NULL	NULL	NULL	NULL	150	100.00	Using where; Using temporary; Using filesort
4	DEPENDENT SUBQUERY	orders	ref	i_o_custkey	i_o_custkey	5	dbt3_s001.customer.c_custkey	15	100.00	Using index
3	SUBQUERY	customer	ALL	NULL	NULL	NULL	NULL	150	100.00	Using where
Warnings:
Note	1276	Field or reference 'dbt3_s001.customer.c_custkey' of SELECT #4 was resolved in SELECT #2
Note	1003	/* select#1 */ select substr(`dbt3_s001`.`customer`.`c_phone`,1,2) AS `cntrycode`,count(0) AS `numcust`,sum(`dbt3_s001`.`customer`.`c_acctbal`) AS `totacctbal` from `dbt3_s001`.`customer` where substr(`dbt3_s001`.`customer`.`c_phone`,1,2) in ('10','20','14','19','11','28','25') and `dbt3_s001`.`customer`.`c_acctbal` > (/* select#3 */ select avg(`dbt3_s001`.`customer`.`c_acctbal`) from `dbt3_s001`.`customer` where `dbt3_s001`.`customer`.`c_acctbal` > 0.00 and substr(`dbt3_s001`.`customer`.`c_phone`,1,2) in ('10','20','14','19','11','28','25')) and !<in_optimizer>(1,<expr_cache><`dbt3_s001`.`customer`.`c_custkey`>(exists(/* select#4 */ select 1 from `dbt3_s001`.`orders` where `dbt3_s001`.`orders`.`o_custkey` = `dbt3_s001`.`customer`.`c_custkey` limit 1))) group by substr(`dbt3_s001`.`customer`.`c_phone`,1,2) order by substr(`dbt3_s001`.`customer`.`c_phone`,1,2)
select cntrycode, count(*) as numcust, sum(c_acctbal) as totacctbal
from  (
select substr(c_phone, 1, 2) as cntrycode, c_acctbal
from customer
where
substr(c_phone, 1, 2) in ('10', '20', '14', '19', '11', '28', '25')
and c_acctbal > (select avg(c_acctbal) from customer
where c_acctbal > 0.00
and substr(c_phone, 1, 2) in
('10', '20', '14', '19', '11', '28', '25'))
and not exists (select * from orders where o_custkey = c_custkey)
) as vip
group by cntrycode
order by cntrycode;
cntrycode	numcust	totacctbal
11	4	29942.58
19	2	17120.35
20	1	9091.82
28	2	14755.5
set optimizer_use_condition_selectivity=3;
EXPLAIN EXTENDED select cntrycode, count(*) as numcust, sum(c_acctbal) as totacctbal
from  (
select substr(c_phone, 1, 2) as cntrycode, c_acctbal
from customer
where
substr(c_phone, 1, 2) in ('10', '20', '14', '19', '11', '28', '25')
and c_acctbal > (select avg(c_acctbal) from customer
where c_acctbal > 0.00
and substr(c_phone, 1, 2) in
('10', '20', '14', '19', '11', '28', '25'))
and not exists (select * from orders where o_custkey = c_custkey)
) as vip
group by cntrycode
order by cntrycode;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	customer	ALL	NULL	NULL	NULL	NULL	150	100.00	Using where; Using temporary; Using filesort
4	DEPENDENT SUBQUERY	orders	ref	i_o_custkey	i_o_custkey	5	dbt3_s001.customer.c_custkey	15	100.00	Using index
3	SUBQUERY	customer	ALL	NULL	NULL	NULL	NULL	150	91.00	Using where
Warnings:
Note	1276	Field or reference 'dbt3_s001.customer.c_custkey' of SELECT #4 was resolved in SELECT #2
Note	1003	/* select#1 */ select substr(`dbt3_s001`.`customer`.`c_phone`,1,2) AS `cntrycode`,count(0) AS `numcust`,sum(`dbt3_s001`.`customer`.`c_acctbal`) AS `totacctbal` from `dbt3_s001`.`customer` where substr(`dbt3_s001`.`customer`.`c_phone`,1,2) in ('10','20','14','19','11','28','25') and `dbt3_s001`.`customer`.`c_acctbal` > (/* select#3 */ select avg(`dbt3_s001`.`customer`.`c_acctbal`) from `dbt3_s001`.`customer` where `dbt3_s001`.`customer`.`c_acctbal` > 0.00 and substr(`dbt3_s001`.`customer`.`c_phone`,1,2) in ('10','20','14','19','11','28','25')) and !<in_optimizer>(1,<expr_cache><`dbt3_s001`.`customer`.`c_custkey`>(exists(/* select#4 */ select 1 from `dbt3_s001`.`orders` where `dbt3_s001`.`orders`.`o_custkey` = `dbt3_s001`.`customer`.`c_custkey` limit 1))) group by substr(`dbt3_s001`.`customer`.`c_phone`,1,2) order by substr(`dbt3_s001`.`customer`.`c_phone`,1,2)
select cntrycode, count(*) as numcust, sum(c_acctbal) as totacctbal
from  (
select substr(c_phone, 1, 2) as cntrycode, c_acctbal
from customer
where
substr(c_phone, 1, 2) in ('10', '20', '14', '19', '11', '28', '25')
and c_acctbal > (select avg(c_acctbal) from customer
where c_acctbal > 0.00
and substr(c_phone, 1, 2) in
('10', '20', '14', '19', '11', '28', '25'))
and not exists (select * from orders where o_custkey = c_custkey)
) as vip
group by cntrycode
order by cntrycode;
cntrycode	numcust	totacctbal
11	4	29942.58
19	2	17120.35
20	1	9091.82
28	2	14755.5
=== Q20 ===
set optimizer_use_condition_selectivity=1;
EXPLAIN EXTENDED select sql_calc_found_rows
s_name, s_address
from supplier, nation
where s_suppkey in (select ps_suppkey from partsupp
where ps_partkey in (select p_partkey from part
where p_name like 'g%')
and ps_availqty >
(select 0.5 * sum(l_quantity)
from lineitem
where l_partkey = ps_partkey
and l_suppkey = ps_suppkey
and l_shipdate >= date('1993-01-01')
and l_shipdate < date('1993-01-01') +
interval '1' year ))
and s_nationkey = n_nationkey
and n_name = 'UNITED STATES'
order by s_name
limit 10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	supplier	ALL	PRIMARY,i_s_nationkey	NULL	NULL	NULL	10	100.00	Using where; Using filesort
1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
1	PRIMARY	nation	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	100.00	Using where
2	MATERIALIZED	part	ALL	PRIMARY	NULL	NULL	NULL	200	100.00	Using where
2	MATERIALIZED	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	i_ps_partkey	4	dbt3_s001.part.p_partkey	3	100.00	Using where
4	DEPENDENT SUBQUERY	lineitem	ref	i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey	i_l_suppkey_partkey	10	dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey	8	100.00	Using where
Warnings:
Note	1276	Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2
Note	1276	Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2
Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
select sql_calc_found_rows
s_name, s_address
from supplier, nation
where s_suppkey in (select ps_suppkey from partsupp
where ps_partkey in (select p_partkey from part
where p_name like 'g%')
and ps_availqty >
(select 0.5 * sum(l_quantity)
from lineitem
where l_partkey = ps_partkey
and l_suppkey = ps_suppkey
and l_shipdate >= date('1993-01-01')
and l_shipdate < date('1993-01-01') +
interval '1' year ))
and s_nationkey = n_nationkey
and n_name = 'UNITED STATES'
order by s_name
limit 10;
s_name	s_address
Supplier#000000010	Saygah3gYWMp72i PY
SELECT ((SELECT COUNT(*) FROM part WHERE p_name LIKE 'g%') /
(SELECT COUNT(*) FROM part)) AS sel;
sel
0.0600
set optimizer_use_condition_selectivity=3;
EXPLAIN EXTENDED select sql_calc_found_rows
s_name, s_address
from supplier, nation
where s_suppkey in (select ps_suppkey from partsupp
where ps_partkey in (select p_partkey from part
where p_name like 'g%')
and ps_availqty >
(select 0.5 * sum(l_quantity)
from lineitem
where l_partkey = ps_partkey
and l_suppkey = ps_suppkey
and l_shipdate >= date('1993-01-01')
and l_shipdate < date('1993-01-01') +
interval '1' year ))
and s_nationkey = n_nationkey
and n_name = 'UNITED STATES'
order by s_name
limit 10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	nation	ALL	PRIMARY	NULL	NULL	NULL	25	4.00	Using where; Using temporary; Using filesort
1	PRIMARY	supplier	ref	PRIMARY,i_s_nationkey	i_s_nationkey	5	dbt3_s001.nation.n_nationkey	1	100.00	
1	PRIMARY	part	ALL	PRIMARY	NULL	NULL	NULL	200	4.17	Using where; Start temporary; Using join buffer (flat, BNL join)
1	PRIMARY	partsupp	eq_ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	8	dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey	1	100.00	Using where; End temporary
4	DEPENDENT SUBQUERY	lineitem	ref	i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey	i_l_suppkey_partkey	10	dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey	8	15.14	Using where
Warnings:
Note	1276	Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2
Note	1276	Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2
Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
select sql_calc_found_rows
s_name, s_address
from supplier, nation
where s_suppkey in (select ps_suppkey from partsupp
where ps_partkey in (select p_partkey from part
where p_name like 'g%')
and ps_availqty >
(select 0.5 * sum(l_quantity)
from lineitem
where l_partkey = ps_partkey
and l_suppkey = ps_suppkey
and l_shipdate >= date('1993-01-01')
and l_shipdate < date('1993-01-01') +
interval '1' year ))
and s_nationkey = n_nationkey
and n_name = 'UNITED STATES'
order by s_name
limit 10;
s_name	s_address
Supplier#000000010	Saygah3gYWMp72i PY
set histogram_size=127;
ANALYZE TABLE part PERSISTENT FOR COLUMNS(p_name) INDEXES();
Table	Op	Msg_type	Msg_text
dbt3_s001.part	analyze	status	Engine-independent statistics collected
dbt3_s001.part	analyze	status	Table is already up to date
flush table part;
set optimizer_use_condition_selectivity=4;
EXPLAIN EXTENDED select sql_calc_found_rows
s_name, s_address
from supplier, nation
where s_suppkey in (select ps_suppkey from partsupp
where ps_partkey in (select p_partkey from part
where p_name like 'g%')
and ps_availqty >
(select 0.5 * sum(l_quantity)
from lineitem
where l_partkey = ps_partkey
and l_suppkey = ps_suppkey
and l_shipdate >= date('1993-01-01')
and l_shipdate < date('1993-01-01') +
interval '1' year ))
and s_nationkey = n_nationkey
and n_name = 'UNITED STATES'
order by s_name
limit 10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	nation	ALL	PRIMARY	NULL	NULL	NULL	25	4.00	Using where; Using temporary; Using filesort
1	PRIMARY	supplier	ref	PRIMARY,i_s_nationkey	i_s_nationkey	5	dbt3_s001.nation.n_nationkey	1	100.00	
1	PRIMARY	part	ALL	PRIMARY	NULL	NULL	NULL	200	7.03	Using where
1	PRIMARY	partsupp	eq_ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	8	dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey	1	100.00	Using where; FirstMatch(supplier)
4	DEPENDENT SUBQUERY	lineitem	ref	i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey	i_l_suppkey_partkey	10	dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey	8	15.14	Using where
Warnings:
Note	1276	Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2
Note	1276	Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2
Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
select sql_calc_found_rows
s_name, s_address
from supplier, nation
where s_suppkey in (select ps_suppkey from partsupp
where ps_partkey in (select p_partkey from part
where p_name like 'g%')
and ps_availqty >
(select 0.5 * sum(l_quantity)
from lineitem
where l_partkey = ps_partkey
and l_suppkey = ps_suppkey
and l_shipdate >= date('1993-01-01')
and l_shipdate < date('1993-01-01') +
interval '1' year ))
and s_nationkey = n_nationkey
and n_name = 'UNITED STATES'
order by s_name
limit 10;
s_name	s_address
Supplier#000000010	Saygah3gYWMp72i PY
set histogram_type='DOUBLE_PREC_HB';
set histogram_size=126;
ANALYZE TABLE part PERSISTENT FOR COLUMNS(p_name) INDEXES();
Table	Op	Msg_type	Msg_text
dbt3_s001.part	analyze	status	Engine-independent statistics collected
dbt3_s001.part	analyze	status	Table is already up to date
flush table part;
EXPLAIN EXTENDED select sql_calc_found_rows
s_name, s_address
from supplier, nation
where s_suppkey in (select ps_suppkey from partsupp
where ps_partkey in (select p_partkey from part
where p_name like 'g%')
and ps_availqty >
(select 0.5 * sum(l_quantity)
from lineitem
where l_partkey = ps_partkey
and l_suppkey = ps_suppkey
and l_shipdate >= date('1993-01-01')
and l_shipdate < date('1993-01-01') +
interval '1' year ))
and s_nationkey = n_nationkey
and n_name = 'UNITED STATES'
order by s_name
limit 10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	nation	ALL	PRIMARY	NULL	NULL	NULL	25	4.00	Using where; Using temporary; Using filesort
1	PRIMARY	supplier	ref	PRIMARY,i_s_nationkey	i_s_nationkey	5	dbt3_s001.nation.n_nationkey	1	100.00	
1	PRIMARY	part	ALL	PRIMARY	NULL	NULL	NULL	200	7.81	Using where
1	PRIMARY	partsupp	eq_ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	8	dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey	1	100.00	Using where; FirstMatch(supplier)
4	DEPENDENT SUBQUERY	lineitem	ref	i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey	i_l_suppkey_partkey	10	dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey	8	15.14	Using where
Warnings:
Note	1276	Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2
Note	1276	Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2
Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
select sql_calc_found_rows
s_name, s_address
from supplier, nation
where s_suppkey in (select ps_suppkey from partsupp
where ps_partkey in (select p_partkey from part
where p_name like 'g%')
and ps_availqty >
(select 0.5 * sum(l_quantity)
from lineitem
where l_partkey = ps_partkey
and l_suppkey = ps_suppkey
and l_shipdate >= date('1993-01-01')
and l_shipdate < date('1993-01-01') +
interval '1' year ))
and s_nationkey = n_nationkey
and n_name = 'UNITED STATES'
order by s_name
limit 10;
s_name	s_address
Supplier#000000010	Saygah3gYWMp72i PY
set histogram_type='SINGLE_PREC_HB';
set histogram_size=24;
ANALYZE TABLE nation PERSISTENT FOR COLUMNS(n_name) INDEXES();
Table	Op	Msg_type	Msg_text
dbt3_s001.nation	analyze	status	Engine-independent statistics collected
dbt3_s001.nation	analyze	status	Table is already up to date
flush table nation;
EXPLAIN EXTENDED select sql_calc_found_rows
s_name, s_address
from supplier, nation
where s_suppkey in (select ps_suppkey from partsupp
where ps_partkey in (select p_partkey from part
where p_name like 'g%')
and ps_availqty >
(select 0.5 * sum(l_quantity)
from lineitem
where l_partkey = ps_partkey
and l_suppkey = ps_suppkey
and l_shipdate >= date('1993-01-01')
and l_shipdate < date('1993-01-01') +
interval '1' year ))
and s_nationkey = n_nationkey
and n_name = 'UNITED STATES'
order by s_name
limit 10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	nation	ALL	PRIMARY	NULL	NULL	NULL	25	4.00	Using where; Using temporary; Using filesort
1	PRIMARY	supplier	ref	PRIMARY,i_s_nationkey	i_s_nationkey	5	dbt3_s001.nation.n_nationkey	1	100.00	
1	PRIMARY	part	ALL	PRIMARY	NULL	NULL	NULL	200	7.81	Using where
1	PRIMARY	partsupp	eq_ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	8	dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey	1	100.00	Using where; FirstMatch(supplier)
4	DEPENDENT SUBQUERY	lineitem	ref	i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey	i_l_suppkey_partkey	10	dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey	8	15.14	Using where
Warnings:
Note	1276	Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2
Note	1276	Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2
Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
select sql_calc_found_rows
s_name, s_address
from supplier, nation
where s_suppkey in (select ps_suppkey from partsupp
where ps_partkey in (select p_partkey from part
where p_name like 'g%')
and ps_availqty >
(select 0.5 * sum(l_quantity)
from lineitem
where l_partkey = ps_partkey
and l_suppkey = ps_suppkey
and l_shipdate >= date('1993-01-01')
and l_shipdate < date('1993-01-01') +
interval '1' year ))
and s_nationkey = n_nationkey
and n_name = 'UNITED STATES'
order by s_name
limit 10;
s_name	s_address
Supplier#000000010	Saygah3gYWMp72i PY
DROP DATABASE dbt3_s001;
set histogram_type=@save_histogram_type;
set histogram_size=@save_histogram_size;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
use test;
#
# Bug mdev-4348: using view with use_condition_selectivity > 1 
#
set @tmp_use_stat_tables=@@use_stat_tables;
set use_stat_tables='never';
set optimizer_use_condition_selectivity=3;
CREATE TABLE t1 (a int, b int);
INSERT t1 VALUES (7,1), (0,7);
CREATE ALGORITHM=MERGE VIEW v1 AS SELECT * FROM t1;
CREATE TABLE t2 (c int, d int, index idx(d));
INSERT INTO t2 VALUES 
(0,4), (8,6), (1,3), (8,5), (9,3), (2,2), (6,2),
(1,9), (6,3), (2,8), (4,1), (0,7), (4,8), (4,5);
EXPLAIN EXTENDED
SELECT * FROM v1 INNER JOIN t2 ON ( a = c AND b = d );
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
1	SIMPLE	t2	ref	idx	idx	5	test.t1.b	2	100.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t1` join `test`.`t2` where `test`.`t2`.`c` = `test`.`t1`.`a` and `test`.`t2`.`d` = `test`.`t1`.`b`
SELECT * FROM v1 INNER JOIN t2 ON ( a = c AND b = d );
a	b	c	d
0	7	0	7
DROP VIEW v1;
DROP TABLE t1,t2;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
set use_stat_tables=@tmp_use_stat_tables;
#
# Bug mdev-4349: impossible range for non-indexed column 
#
set optimizer_use_condition_selectivity=3;
create table t1 (a int);
insert into t1 values
(3), (7), (2), (5), (7), (1), (2), (2);
set optimizer_use_condition_selectivity=1;
explain extended
select * from t1 where a < 1 and a > 7;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	8	100.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 1 and `test`.`t1`.`a` > 7
select * from t1 where a < 1 and a > 7;
a
set optimizer_use_condition_selectivity=3;
explain extended
select * from t1 where a < 1 and a > 7;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	8	100.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 1 and `test`.`t1`.`a` > 7
select * from t1 where a < 1 and a > 7;
a
drop table t1;
create table t1 (a int);
insert into t1 values (1);
create table t2 (b int);
insert into t2 values (2),(3);
explain extended 
select * from t1 where a in ( select b from t2 ) AND ( a > 3 );
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
Warnings:
Note	1003	select 1 AS `a` from (`test`.`t2`) where 0
select * from t1 where a in ( select b from t2 ) AND ( a > 3 );
a
drop table t1,t2;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
#
# Bug mdev-4350: erroneous negative selectivity 
#
create table t1 (a int);
insert into t1 values (1), (1);
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 values (0);
select count(*) from t1;
count(*)
1025
set use_stat_tables='preferably';
set histogram_size=127;
set histogram_type='SINGLE_PREC_HB';
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
flush table t1;
set optimizer_use_condition_selectivity=4;
explain extended select * from t1 where a=0;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1025	0.39	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 0
drop table t1;
set histogram_size=@save_histogram_size;
set histogram_type=@save_histogram_type;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
#
# Bug mdev-4367: 2-way join with an empty table 
#                when optimizer_use_condition_selectivity=3
#
set optimizer_use_condition_selectivity=3;
CREATE TABLE t1 (a varchar(1)) ENGINE=MyISAM;
INSERT INTO t1 VALUES ('j'),('k');
CREATE TABLE t2 (b varchar(1)) ENGINE=MyISAM;
INSERT INTO t2 VALUES ('x'),('y');
CREATE TABLE t3 (c varchar(1), KEY(c)) ENGINE=MyISAM;
SELECT * FROM t1 STRAIGHT_JOIN (t2 JOIN t3 ON c = b AND b > 'z');
a	b	c
DROP TABLE t1,t2,t3;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
#
# Bug mdev-4366: impossible condition on an indexed column discovered after
#                substitution of constant tables
#                with optimizer_use_condition_selectivity=3
#
CREATE TABLE t1 (pk int PRIMARY KEY, a int);
INSERT INTO t1 VALUES 
(1,4), (2,6), (3,3), (4,5);
CREATE TABLE t2 (b int);
INSERT INTO t2 VALUES (1), (7);
set optimizer_use_condition_selectivity=1;
EXPLAIN EXTENDED
SELECT 1 FROM t1, t2 WHERE pk = 6 AND a = 2 AND b = 10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
Warnings:
Note	1003	select 1 AS `1` from `test`.`t1` join `test`.`t2` where 0
SELECT 1 FROM t1, t2 WHERE pk = 6 AND a = 2 AND b = 10;
1
set optimizer_use_condition_selectivity=3;
EXPLAIN EXTENDED
SELECT 1 FROM t1, t2 WHERE pk = 6 AND a = 2 AND b = 10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
Warnings:
Note	1003	select 1 AS `1` from `test`.`t1` join `test`.`t2` where 0
SELECT 1 FROM t1, t2 WHERE pk = 6 AND a = 2 AND b = 10;
1
DROP TABLE t1,t2;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
#
# Bug mdev-4370: Histograms have bean created, but the query is run after
#                FLUSH TABLES with optimizer_use_condition_selectivity=3
#
set use_stat_tables=PREFERABLY;
set histogram_size=10;
set histogram_type='SINGLE_PREC_HB';
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (9), (1);
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
FLUSH TABLES;
set optimizer_use_condition_selectivity=3;
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE a > 3;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	75.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 3
SELECT * FROM t1 WHERE a > 3;
a
9
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1;
set histogram_size=@save_histogram_size;
set histogram_type=@save_histogram_type;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-4371: Join with condition supported by index on an empty table  
#                with optimizer_use_condition_selectivity=3
#
set use_stat_tables=PREFERABLY;
CREATE TABLE t1 (a int, b int, INDEX(a));
CREATE TABLE t2 (c int);
INSERT INTO t2 VALUES (1),(2),(3),(4),(5),(6),(7),(8);
ANALYZE TABLE t1, t2;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	Table is already up to date
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	OK
FLUSH TABLES;
set optimizer_use_condition_selectivity=3;
set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='index_condition_pushdown=off';
EXPLAIN EXTENDED
SELECT * FROM t1, t2 WHERE a > 9;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
Warnings:
Note	1003	select NULL AS `a`,NULL AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where 0
SELECT * FROM t1, t2 WHERE a > 9;
a	b	c
set optimizer_switch=@save_optimizer_switch;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1,t2;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-4373: condition on a short varchar column   
#                with optimizer_use_condition_selectivity=3
#
set use_stat_tables=PREFERABLY;
CREATE TABLE t1 (a varchar(1));
INSERT INTO t1 VALUES ('x'), ('y');
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
FLUSH TABLES;
set optimizer_use_condition_selectivity=3;
SELECT * FROM t1 WHERE a <= 'w';
a
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-4372: exists subquery in WHERE   
#                with optimizer_use_condition_selectivity=3
#
set use_stat_tables = PREFERABLY;
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES 
(1),(7),(4),(7),(0),(2),(9),(4),(0),(9),(1),(3),(8),(8);
CREATE TABLE t2 (b int);
INSERT INTO t2 VALUES (4),(5),(2),(5),(1),(1),(2);
ANALYZE TABLE t1, t2;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	OK
FLUSH TABLES;
set optimizer_use_condition_selectivity=3;
EXPLAIN EXTENDED
SELECT * FROM t1, t2 WHERE EXISTS ( SELECT 1 FROM t1, t2 ) AND a != b OR a <= 4;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	7	100.00	
1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	14	100.00	Using where; Using join buffer (flat, BNL join)
2	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	7	100.00	
2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	14	100.00	Using join buffer (flat, BNL join)
Warnings:
Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t1` join `test`.`t2` where <cache>(<in_optimizer>(1,exists(/* select#2 */ select 1 from `test`.`t1` join `test`.`t2` limit 1))) and `test`.`t1`.`a` <> `test`.`t2`.`b` or `test`.`t1`.`a` <= 4
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1,t2;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-4363: selectivity of the condition a IS NULL OR IS NOT NULL   
#                with optimizer_use_condition_selectivity=3
#
set use_stat_tables = PREFERABLY;
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES 
(1),(7),(4),(7),(NULL),(2),(NULL),(4),(NULL),(NULL),(1),(3),(8),(8);
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
FLUSH TABLE t1;
set optimizer_use_condition_selectivity=3;
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE a IS NULL;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	14	28.57	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is null
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE a IS NOT NULL;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	14	71.43	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is not null
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE a IS NULL OR a IS NOT NULL;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	14	100.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is null or `test`.`t1`.`a` is not null
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE a IS NULL OR a < 5;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	14	69.39	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is null or `test`.`t1`.`a` < 5
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-4378: 2-way join with a materialized IN subquery in WHERE   
#                when optimizer_use_condition_selectivity=4
#
set use_stat_tables=PREFERABLY;
set histogram_size=50;
set histogram_type=SINGLE_PREC_HB;
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
INSERT INTO t1 VALUES (8),(9),(6);
CREATE TABLE t2 (b INT) ENGINE=MyISAM;
INSERT INTO t2 VALUES (8),(1),(8),(9),(24),(6),(1),(6),(2),(4);
CREATE TABLE t3 (ln VARCHAR(16)) ENGINE=MyISAM;
INSERT INTO t3 VALUES 
('smith'),('black'),('white'),('jones'),
('brown'),('taylor'),('anderson'),('taylor');
ANALYZE TABLE t1, t2, t3;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	OK
test.t3	analyze	status	Engine-independent statistics collected
test.t3	analyze	status	OK
FLUSH TABLES;
set  optimizer_use_condition_selectivity=4;
SELECT * FROM t1, t2 WHERE 'garcia' IN ( SELECT MIN( ln ) FROM t3 WHERE ln = 'sun' );
a	b
set histogram_size=@save_histogram_size;
set histogram_type=@save_histogram_type;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1,t2,t3;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-4380: 2-way join with a materialized IN subquery in WHERE   
#                when optimizer_use_condition_selectivity=3
#
set  use_stat_tables=PREFERABLY;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (5),(9);
CREATE TABLE t2 (b VARCHAR(8));
INSERT INTO t2 VALUES ('red'),('blue');
CREATE TABLE t3 (c VARCHAR(8), d VARCHAR(8));
INSERT INTO t3 VALUES ('white','black'),('cyan','yellow');
ANALYZE TABLE t1, t2, t3;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	OK
test.t3	analyze	status	Engine-independent statistics collected
test.t3	analyze	status	OK
FLUSH TABLES;
set optimizer_use_condition_selectivity=3;
SELECT * FROM t1, t2 WHERE ( 'orange', 'green' ) IN ( 
SELECT MAX(c), MAX(d) FROM t3, t2 WHERE c >= d AND b = c 
);
a	b
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1,t2,t3;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-4389: join with degenerated range condition in WHERE   
#                when optimizer_use_condition_selectivity=3
#
set use_stat_tables=PREFERABLY;
CREATE TABLE t1 (f1 VARCHAR(1));
INSERT t1 VALUES ('p'),('q');
CREATE TABLE t2 (f2 VARCHAR(1));
INSERT INTO t2 VALUES 
('o'),('v'),('f'),('f'),('e'),('l'),('j'),('p'),('r'),('j'),
('j'),('u'),('i'),('r'),('x'),('a'),('x'),('s');
ANALYZE TABLE t1, t2;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	OK
FLUSH TABLES;
SET optimizer_use_condition_selectivity=3;
SELECT * FROM t1, t2 AS t2a, t2 AS t2b WHERE f1 <= 'a' AND t2a.f2 = f1;
f1	f2	f2
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1,t2;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-4406: range condition for non-nullable column   
#                when optimizer_use_condition_selectivity=3
#
create table t1 (a int not null);
insert into t1 values
(7), (6), (4), (9), (1), (5), (2), (1), (3), (8);
set use_stat_tables='preferably';
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
flush table t1;
set optimizer_use_condition_selectivity=3;
select count(*) from t1 where a between 5 and 7;
count(*)
3
explain extended select * from t1 where a between 5 and 7;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	25.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` between 5 and 7
alter table t1 change column a a int;
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
flush table t1;
explain extended select * from t1 where a between 5 and 7;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	25.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` between 5 and 7
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
drop table t1;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-5200: impossible where with a semijoin subquery   
#                when optimizer_use_condition_selectivity=2
#
set use_stat_tables = 'preferably';
set optimizer_use_condition_selectivity = 2;
CREATE TABLE t1 (i1 int) ENGINE=MyISAM;
INSERT INTO t1 VALUES (0), (1);
CREATE TABLE t2 (pk2 int, i2 int, c2 char(1), PRIMARY KEY(pk2)) ENGINE=MyISAM;
INSERT INTO t2 VALUES (1,8,'m'), (2,9,'b');
CREATE TABLE t3 (c3 char(1), INDEX(c3)) ENGINE=MyISAM;
INSERT INTO t3 VALUES ('v'), ('c');
ANALYZE TABLE t1,t2,t3;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	OK
test.t3	analyze	status	Engine-independent statistics collected
test.t3	analyze	status	OK
SELECT * FROM t1
WHERE 2 IN ( SELECT pk2 FROM t2 LEFT JOIN t3 ON (c3 = c2 ) WHERE i2 = 3 );
i1
EXPLAIN EXTENDED
SELECT * FROM t1
WHERE 2 IN ( SELECT pk2 FROM t2 LEFT JOIN t3 ON (c3 = c2 ) WHERE i2 = 3 );
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
Warnings:
Note	1003	select `test`.`t1`.`i1` AS `i1` from `test`.`t1` semi join (`test`.`t2` left join `test`.`t3` on(`test`.`t3`.`c3` = 'b')) where 0
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1,t2,t3;
#
# Bug mdev-5415: query over an information schema table   
#                when optimizer_use_condition_selectivity=3
#
set optimizer_use_condition_selectivity = 3;
SELECT * FROM INFORMATION_SCHEMA.TRIGGERS WHERE SQL_MODE != '';
TRIGGER_CATALOG	TRIGGER_SCHEMA	TRIGGER_NAME	EVENT_MANIPULATION	EVENT_OBJECT_CATALOG	EVENT_OBJECT_SCHEMA	EVENT_OBJECT_TABLE	ACTION_ORDER	ACTION_CONDITION	ACTION_STATEMENT	ACTION_ORIENTATION	ACTION_TIMING	ACTION_REFERENCE_OLD_TABLE	ACTION_REFERENCE_NEW_TABLE	ACTION_REFERENCE_OLD_ROW	ACTION_REFERENCE_NEW_ROW	CREATED	SQL_MODE	DEFINER	CHARACTER_SET_CLIENT	COLLATION_CONNECTION	DATABASE_COLLATION
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
#
# Bug mdev-5630: always true conjunctive condition   
#                when optimizer_use_condition_selectivity=3
#
set use_stat_tables = 'preferably';
set optimizer_use_condition_selectivity = 3;
CREATE TABLE t1 (a int) ENGINE=MyISAM;
INSERT INTO t1 VALUES (10);
CREATE TABLE t2 (id int, flag char(1), INDEX(id)) ENGINE=MyISAM;
INSERT INTO t2 VALUES (100,'0'),(101,'1');
ANALYZE TABLE t1, t2;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	OK
SELECT * FROM t1, t2 WHERE id = a AND ( a = 16 OR flag AND a != 6 );
a	id	flag
DROP TABLE t1,t2;
#
# Bug mdev-4429: join with  range condition whose selectivity == 0   
#                when optimizer_use_condition_selectivity=3
#
CREATE TABLE language (lang_group INT, lang VARCHAR(16) PRIMARY KEY);
INSERT INTO language VALUES 
(1,'Chinese'),(6,'English'),(1,'French'),
(1,'German'),(1,'Italian'),(0,'Japanese');
CREATE TABLE country (code varchar(3) PRIMARY KEY,
country_group INT DEFAULT NULL);
INSERT INTO country VALUES ('USA',3),('FRA',5);
CREATE TABLE continent (cont_group INT, cont varchar(16) PRIMARY KEY);
INSERT INTO continent VALUES
(1,'N.America'),(1,'S.America'),(3,'Australia'),
(4,'Africa'),(5,'Antarctica'),(6,'Eurasia');
SET use_stat_tables=PREFERABLY;
ANALYZE TABLE country, language, continent;
Table	Op	Msg_type	Msg_text
test.country	analyze	status	Engine-independent statistics collected
test.country	analyze	status	OK
test.language	analyze	status	Engine-independent statistics collected
test.language	analyze	status	OK
test.continent	analyze	status	Engine-independent statistics collected
test.continent	analyze	status	OK
FLUSH TABLES;
SET optimizer_use_condition_selectivity=3;
SELECT * FROM language, country, continent
WHERE country_group = lang_group AND lang_group IS NULL;
lang_group	lang	code	country_group	cont_group	cont
EXPLAIN EXTENDED
SELECT * FROM language, country, continent
WHERE country_group = lang_group AND lang_group IS NULL;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	country	ALL	NULL	NULL	NULL	NULL	2	0.00	Using where
1	SIMPLE	language	ALL	NULL	NULL	NULL	NULL	6	0.00	Using where; Using join buffer (flat, BNL join)
1	SIMPLE	continent	ALL	NULL	NULL	NULL	NULL	6	100.00	Using join buffer (incremental, BNL join)
Warnings:
Note	1003	select `test`.`language`.`lang_group` AS `lang_group`,`test`.`language`.`lang` AS `lang`,`test`.`country`.`code` AS `code`,`test`.`country`.`country_group` AS `country_group`,`test`.`continent`.`cont_group` AS `cont_group`,`test`.`continent`.`cont` AS `cont` from `test`.`language` join `test`.`country` join `test`.`continent` where `test`.`language`.`lang_group` = `test`.`country`.`country_group` and `test`.`country`.`country_group` is null
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
drop table language, country, continent;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-5191: performance degradation due to a suboptimal chosen plan   
#                when optimizer_use_condition_selectivity=3
#
set use_stat_tables = 'preferably';
set @@RAND_SEED1=810763568, @@RAND_SEED2=600681772;
set TIMESTAMP=1394806993;
create table t1 (a int, b int) engine=myisam;
insert t1 values (rand()*1e5, rand()*1e5);
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
insert t1 select rand()*1e5, rand()*1e5 from t1;
create table t2 (c int, d int, key(c), key(d)) engine=myisam;
insert t2 select floor(rand()*1e5/2)*2, floor(rand()*1e5/3)*3 from t1;
analyze table t1,t2;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	Table is already up to date
set optimizer_use_condition_selectivity=1;
explain extended 
select * from t1, t2, t1 as t3
where t1.b=t2.c and t2.d=t3.a and t3.b<5 and t1.a < 2000;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	262144	100.00	Using where
1	SIMPLE	t2	ref	c,d	c	5	test.t1.b	5	100.00	
1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	262144	100.00	Using where; Using join buffer (flat, BNL join)
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b` from `test`.`t1` join `test`.`t2` join `test`.`t1` `t3` where `test`.`t2`.`c` = `test`.`t1`.`b` and `test`.`t3`.`a` = `test`.`t2`.`d` and `test`.`t3`.`b` < 5 and `test`.`t1`.`a` < 2000
select * from t1, t2, t1 as t3
where t1.b=t2.c and t2.d=t3.a and t3.b<5 and t1.a < 2000;
a	b	c	d	a	b
1063	89366	89366	28296	28296	3
1495	89366	89366	28296	28296	3
221	56120	56120	28296	28296	3
961	24512	24512	85239	85239	4
set optimizer_use_condition_selectivity=3;
explain extended
select * from t1, t2, t1 as t3
where t1.b=t2.c and t2.d=t3.a and t3.b<5 and t1.a < 2000;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	262144	0.00	Using where
1	SIMPLE	t2	ref	c,d	d	5	test.t3.a	7	100.00	
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	262144	2.00	Using where; Using join buffer (flat, BNL join)
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b` from `test`.`t1` join `test`.`t2` join `test`.`t1` `t3` where `test`.`t1`.`b` = `test`.`t2`.`c` and `test`.`t2`.`d` = `test`.`t3`.`a` and `test`.`t3`.`b` < 5 and `test`.`t1`.`a` < 2000
select * from t1, t2, t1 as t3
where t1.b=t2.c and t2.d=t3.a and t3.b<5 and t1.a < 2000;
a	b	c	d	a	b
1063	89366	89366	28296	28296	3
1495	89366	89366	28296	28296	3
221	56120	56120	28296	28296	3
961	24512	24512	85239	85239	4
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
drop table t1,t2;
set histogram_type=@save_histogram_type;
set histogram_size=@save_histogram_size;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
#
# Bug mdev-5931: no where condition after constant table row substitution 
#                with optimizer_use_condition_selectivity=3
#
CREATE TABLE t1 (a varchar(3), b varchar(3)) ENGINE=MyISAM;
INSERT INTO t1 VALUES ('foo', 'foo');
CREATE TABLE t2 (c INT) ENGINE=MyISAM;
INSERT INTO t2 VALUES (1), (2);
set optimizer_use_condition_selectivity=3;
EXPLAIN EXTENDED
SELECT * FROM t1, t2 WHERE c >= 0 OR a = b ;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	1	100.00	
1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
Warnings:
Note	1003	select 'foo' AS `a`,'foo' AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where 1
SELECT * FROM t1, t2 WHERE c >= 0 OR a = b ;
a	b	c
foo	foo	1
foo	foo	2
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1,t2;
#
# Bug mdev-6325: wrong selectivity of a column with ref access 
#
create table t0(a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1(a int);
insert into t1 select A.a + B.a* 10 + C.a * 100 from t0 A, t0 B, t0 C;
create table t2 (a int, b int, key(a));
insert into t2 select A.a + 10*B.a, 12345 from t0 A, t0 B, t0 C;
set use_stat_tables='preferably';
set histogram_size=100;
set optimizer_use_condition_selectivity=4;
analyze table t1 persistent for all;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
analyze table t2 persistent for all;
Table	Op	Msg_type	Msg_text
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	Table is already up to date
explain extended 
select * from t1 straight_join t2 where t1.a=t2.a and t1.a<10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1000	1.96	Using where
1	SIMPLE	t2	ref	a	a	5	test.t1.a	10	100.00	
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t1` straight_join `test`.`t2` where `test`.`t2`.`a` = `test`.`t1`.`a` and `test`.`t1`.`a` < 10
explain extended 
select * from t1 straight_join t2 where t1.a=t2.a and t2.a<10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1000	1.96	Using where
1	SIMPLE	t2	ref	a	a	5	test.t1.a	10	100.00	
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t1` straight_join `test`.`t2` where `test`.`t2`.`a` = `test`.`t1`.`a` and `test`.`t1`.`a` < 10
set histogram_size=@save_histogram_size;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
drop table t0,t1,t2;
#
# Bug mdev-6843: col IS NULL in where condition when col is always NULL
#
create table t0(a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1(a int);
insert into t1 select A.a + B.a* 10 + C.a * 100 from t0 A, t0 B, t0 C;
create table t2 (a int, b int);
insert into t2 select NULL, a from t1;
set use_stat_tables='preferably';
set histogram_size=100;
set optimizer_use_condition_selectivity=4;
analyze table t2 persistent for all;
Table	Op	Msg_type	Msg_text
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	OK
explain extended
select * from t2 a straight_join t2 b where a.a is null;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	a	ALL	NULL	NULL	NULL	NULL	1000	100.00	Using where
1	SIMPLE	b	ALL	NULL	NULL	NULL	NULL	1000	100.00	Using join buffer (flat, BNL join)
Warnings:
Note	1003	select `test`.`a`.`a` AS `a`,`test`.`a`.`b` AS `b`,`test`.`b`.`a` AS `a`,`test`.`b`.`b` AS `b` from `test`.`t2` `a` straight_join `test`.`t2` `b` where `test`.`a`.`a` is null
set histogram_size=@save_histogram_size;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
drop table t0,t1,t2;
#
# Bug mdev-7316: a conjunct in WHERE with selectivity == 0
#
CREATE TABLE t1 (a varchar(16), b int, PRIMARY KEY(a), KEY(b));
INSERT INTO t1 VALUES
('USAChinese',10), ('USAEnglish',20), ('USAFrench',30);
CREATE TABLE t2 (i int);
INSERT INTO t2 VALUES
(1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(1),(2),(3),(4);
ANALYZE TABLE t1, t2;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	OK
set use_stat_tables='preferably';
set optimizer_use_condition_selectivity=3;
EXPLAIN EXTENDED
SELECT * FROM t1, t2
WHERE  a <> 'USARussian' AND b IS NULL;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ref	PRIMARY,b	b	5	const	1	100.00	Using index condition; Using where
1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	14	100.00	Using join buffer (flat, BNL join)
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`i` AS `i` from `test`.`t1` join `test`.`t2` where `test`.`t1`.`a` <> 'USARussian' and `test`.`t1`.`b` is null
SELECT * FROM t1, t2
WHERE a <> 'USARussian' AND b IS NULL;
a	b	i
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1,t2;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-11096: range condition over column without statistical data
#
set use_stat_tables='preferably';
set optimizer_use_condition_selectivity=3;
create table t1(col1 char(32));
insert into t1 values ('a'),('b'),('c'),('d'), ('e'),('f'),('g'),('h');
analyze table t1 persistent for columns () indexes ();
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
explain extended 
select * from t1 where col1 > 'b' and col1 < 'e';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	8	100.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`col1` AS `col1` from `test`.`t1` where `test`.`t1`.`col1` > 'b' and `test`.`t1`.`col1` < 'e'
select * from t1 where col1 > 'b' and col1 < 'e';
col1
c
d
drop table t1;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-9628: unindexed blob column without min-max statistics 
#                with optimizer_use_condition_selectivity=3
#
set use_stat_tables='preferably';
set optimizer_use_condition_selectivity=3;
create table t1(col1 char(32));
insert into t1 values ('a'),('b'),('c'),('d'), ('e'),('f'),('g'),('h');
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
create table t2(col1 text);
insert into t2 values ('a'),('b'),('c'),('d'), ('e'),('f'),('g'),('h');
analyze table t2;
Table	Op	Msg_type	Msg_text
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	Warning	Engine-independent statistics are not collected for column 'col1'
test.t2	analyze	status	OK
select * from t1 where col1 > 'b' and col1 < 'd';
col1
c
explain extended 
select * from t1 where col1 > 'b' and col1 < 'd';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	8	28.57	Using where
Warnings:
Note	1003	select `test`.`t1`.`col1` AS `col1` from `test`.`t1` where `test`.`t1`.`col1` > 'b' and `test`.`t1`.`col1` < 'd'
select * from t2 where col1 > 'b' and col1 < 'd';
col1
c
explain extended 
select * from t2 where col1 > 'b' and col1 < 'd';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	8	100.00	Using where
Warnings:
Note	1003	select `test`.`t2`.`col1` AS `col1` from `test`.`t2` where `test`.`t2`.`col1` > 'b' and `test`.`t2`.`col1` < 'd'
select * from t2 where col1 < 'b' and col1 > 'd';
col1
explain extended 
select * from t2 where col1 < 'b' and col1 > 'd';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	8	100.00	Using where
Warnings:
Note	1003	select `test`.`t2`.`col1` AS `col1` from `test`.`t2` where `test`.`t2`.`col1` < 'b' and `test`.`t2`.`col1` > 'd'
drop table t1,t2;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
set use_stat_tables=@save_use_stat_tables;
#
# Bug mdev-11364: IS NULL over not nullable datetime column
#                 in mergeable derived
#
set use_stat_tables='preferably';
set optimizer_use_condition_selectivity=4;
set HISTOGRAM_SIZE = 255;
CREATE TABLE t1 (t TIME, d DATE NOT NULL);
INSERT INTO t1 VALUES ('10:00:00', '0000-00-00'),('11:00:00','0000-00-00');
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
SELECT * FROM (SELECT t FROM t1 WHERE d IS NULL) sq;
t
10:00:00
11:00:00
DROP TABLE t1;
#
# MDEV-16374: filtered shows 0 for materilization scan for a semi join, which makes optimizer
# always pick materialization scan over materialization lookup
#
create table t0(a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 (a int, b int);
insert into t1 values (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9),(10,10),
(11,11),(12,12),(13,13),(14,14),(15,15);
set @@optimizer_use_condition_selectivity=2;
explain extended select * from t1 where a in (select max(a) from t1 group by b);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	16	100.00	Using where
1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	test.t1.a	1	100.00	
2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	16	100.00	Using temporary
Warnings:
Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from  <materialize> (/* select#2 */ select max(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`b`) join `test`.`t1` where `<subquery2>`.`max(a)` = `test`.`t1`.`a`
select * from t1 where a in (select max(a) from t1 group by b);
a	b
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	15
set @@optimizer_use_condition_selectivity=1;
explain extended select * from t1 where a in (select max(a) from t1 group by b);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	16	100.00	Using where
1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	test.t1.a	1	100.00	
2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	16	100.00	Using temporary
Warnings:
Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from  <materialize> (/* select#2 */ select max(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`b`) join `test`.`t1` where `<subquery2>`.`max(a)` = `test`.`t1`.`a`
select * from t1 where a in (select max(a) from t1 group by b);
a	b
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	15
drop table t1,t0;
set histogram_size=@save_histogram_size;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
set use_stat_tables=@save_use_stat_tables;
#
# MDEV-15306: Wrong/Unexpected result with the value
# optimizer_use_condition_selectivity set to 4
#
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);
CREATE FUNCTION f1() RETURNS INT DETERMINISTIC
BEGIN
SET @cnt := @cnt + 1;
RETURN 1;
END;|
set @save_optimizer_use_condition_selectivity=@@optimizer_use_condition_selectivity;
set @save_use_stat_tables= @@use_stat_tables;
set @@use_stat_tables='complementary';
set @@optimizer_use_condition_selectivity=4;
SET @cnt= 0;
SELECT * FROM t1 WHERE a = f1();
a
1
SELECT @cnt;
@cnt
1
set @@use_stat_tables='preferably';
analyze table t1 persistent for all;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
SET @cnt := 0;
set @@optimizer_use_condition_selectivity=4;
SELECT * FROM t1 WHERE a = f1();
a
1
SELECT @cnt;
@cnt
2
alter table  t1 force;
drop table t1;
drop function f1;
#
# MDEV-19834 Selectivity of an equality condition discounted twice
#
create table t1 (a int, b int, key (b), key (a));
insert into t1
select (rand(1)*1000)/10, (rand(1001)*1000)/20 from seq_1_to_1000;
analyze table t1 persistent for all;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	Table is already up to date
# Check what info the optimizer has about selectivities
explain extended select * from t1 use index () where a in (17,51,5);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1000	3.90	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` USE INDEX () where `test`.`t1`.`a` in (17,51,5)
explain extended select * from t1 use index () where b=2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1000	2.34	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` USE INDEX () where `test`.`t1`.`b` = 2
# Now, the equality is used for ref access, while the range condition
# gives selectivity data
explain extended select * from t1 where a in (17,51,5) and b=2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ref|filter	b,a	b|a	5|5	const	24 (3%)	2.90	Using where; Using rowid filter
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`b` = 2 and `test`.`t1`.`a` in (17,51,5)
drop table t1;
set use_stat_tables= @save_use_stat_tables;
set @@histogram_size=@save_histogram_size;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
#
# MDEV-20576: failing assertion DBUG_ASSERT(0.0 < sel && sel <= 1)
#
set @@optimizer_use_condition_selectivity=2;
set names utf8;
CREATE DATABASE world;
use world;
CREATE TABLE Country (
Code char(3) NOT NULL default '',
Name char(52) NOT NULL default '',
SurfaceArea float(10,2) NOT NULL default '0.00',
Population int(11) NOT NULL default '0',
Capital int(11) default NULL,
PRIMARY KEY  (Code),
UNIQUE INDEX (Name)
);
CREATE TABLE City (
ID int(11) NOT NULL auto_increment,
Name char(35) NOT NULL default '',
Country char(3) NOT NULL default '',
Population int(11) NOT NULL default '0',
PRIMARY KEY  (ID),
INDEX (Population),
INDEX (Country) 
);
CREATE TABLE CountryLanguage (
Country char(3) NOT NULL default '',
Language char(30) NOT NULL default '',
Percentage float(3,1) NOT NULL default '0.0',
PRIMARY KEY  (Country, Language),
INDEX (Percentage)
);
CREATE INDEX Name ON City(Name);
CREATE INDEX CountryPopulation ON City(Country,Population);
CREATE INDEX CountryName ON City(Country,Name);
set @@optimizer_use_condition_selectivity=2;
EXPLAIN
SELECT * FROM City WHERE Country='FIN';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	City	ref	Country,CountryPopulation,CountryName	CountryName	3	const	5	Using index condition
DROP DATABASE world;
use test;
CREATE TABLE t1 (
a INT,
b INT NOT NULL,
c char(100),
KEY (b, c),
KEY (b, a, c)
) ENGINE=MyISAM
DEFAULT CHARSET = utf8;
INSERT INTO t1 VALUES
(1,  1, 1),
(2,  2, 2),
(3,  3, 3),
(4,  4, 4),
(5,  5, 5),
(6,  6, 6),
(7,  7, 7),
(8,  8, 8),
(9,  9, 9);
INSERT INTO t1 SELECT a + 10,  b, c FROM t1;
INSERT INTO t1 SELECT a + 20,  b, c FROM t1;
INSERT INTO t1 SELECT a + 40,  b, c FROM t1;
INSERT INTO t1 SELECT a + 80,  b, c FROM t1;
INSERT INTO t1 SELECT a + 160, b, c FROM t1;
INSERT INTO t1 SELECT a + 320, b, c FROM t1;
INSERT INTO t1 SELECT a + 640, b, c FROM t1;
INSERT INTO t1 SELECT a + 1280, b, c FROM t1 LIMIT 80;
EXPLAIN
SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	range	b,b_2	b	4	NULL	226	Using where
SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9;
a
2071
2061
2051
2041
2031
2021
2011
2001
1991
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1;
#
# MDEV-20424: New default value for optimizer_use_condition-selectivity
# leads to bad plan
#
create table t1(a int, b int, c int, d int, key(a,b));
insert into t1 select 50,seq-1,seq-1,seq from seq_1_to_10;
insert into t1 select seq-1,seq-1,seq-1,seq from seq_1_to_100 limit 90;
create table t2(a int, b int, c int, primary key(a));
insert into t2 select seq-1,seq-1,seq-1 from seq_1_to_100;
create table t3(a int, b int, c int, primary key(a));
insert into t3 select seq-1,seq-1,seq-1 from seq_1_to_100 limit 30;
set optimizer_use_condition_selectivity=1;
explain extended select t1.b,t2.a,t3.a,t3.b from t1,t2,t3
where t1.c = t2.a AND t1.d = t3.a and t1.a = 50 and t1.b <= 100;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	range	a	a	10	NULL	9	100.00	Using index condition; Using where
1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.d	1	100.00	
1	SIMPLE	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.c	1	100.00	Using index
Warnings:
Note	1003	select `test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b` from `test`.`t1` join `test`.`t2` join `test`.`t3` where `test`.`t2`.`a` = `test`.`t1`.`c` and `test`.`t3`.`a` = `test`.`t1`.`d` and `test`.`t1`.`a` = 50 and `test`.`t1`.`b` <= 100
select t1.b,t2.a,t3.a,t3.b from t1,t2,t3
where t1.c = t2.a AND t1.d = t3.a and t1.a = 50 and t1.b <= 100;
b	a	a	b
0	0	1	1
1	1	2	2
2	2	3	3
3	3	4	4
4	4	5	5
5	5	6	6
6	6	7	7
7	7	8	8
8	8	9	9
9	9	10	10
set optimizer_use_condition_selectivity=2;
explain extended select t1.b,t2.a,t3.a,t3.b from t1,t2,t3
where t1.c = t2.a AND t1.d = t3.a and t1.a = 50 and t1.b <= 100;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	range	a	a	10	NULL	9	9.00	Using index condition; Using where
1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.d	1	100.00	
1	SIMPLE	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.c	1	100.00	Using index
Warnings:
Note	1003	select `test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b` from `test`.`t1` join `test`.`t2` join `test`.`t3` where `test`.`t2`.`a` = `test`.`t1`.`c` and `test`.`t3`.`a` = `test`.`t1`.`d` and `test`.`t1`.`a` = 50 and `test`.`t1`.`b` <= 100
select t1.b,t2.a,t3.a,t3.b from t1,t2,t3
where t1.c = t2.a AND t1.d = t3.a and t1.a = 50 and t1.b <= 100;
b	a	a	b
0	0	1	1
1	1	2	2
2	2	3	3
3	3	4	4
4	4	5	5
5	5	6	6
6	6	7	7
7	7	8	8
8	8	9	9
9	9	10	10
set optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
drop table t1,t2,t3;
#
# MDEV-20519: Query plan regression with optimizer_use_condition_selectivity=4
#
create table t1 (id int, a int, PRIMARY KEY(id), key(a));
insert into t1 select seq,seq from seq_1_to_100;
create table t2 (id int, a int, b int, PRIMARY KEY(id), key(a), key(b));
insert into t2 select seq,seq,seq from seq_1_to_100;
analyze table t1,t2 persistent for all;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	Table is already up to date
test.t2	analyze	status	Engine-independent statistics collected
test.t2	analyze	status	Table is already up to date
set optimizer_switch='exists_to_in=off';
set optimizer_use_condition_selectivity=2;
SELECT * FROM t1
WHERE
EXISTS (SELECT * FROM t1 A INNER JOIN t2 ON t2.a = A.id
WHERE A.a=t1.a AND t2.b < 20);
id	a
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
explain SELECT * FROM t1
WHERE
EXISTS (SELECT * FROM t1 A INNER JOIN t2 ON t2.a = A.id
WHERE A.a=t1.a AND t2.b < 20);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	100	Using where
2	DEPENDENT SUBQUERY	A	ref	PRIMARY,a	a	5	test.t1.a	1	
2	DEPENDENT SUBQUERY	t2	ref	a,b	a	5	test.A.id	1	Using where
EXPLAIN  SELECT * FROM t1 A, t1 B WHERE A.a = B.a and A.id = 65;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	A	const	PRIMARY,a	PRIMARY	4	const	1	
1	SIMPLE	B	ref	a	a	5	const	1	
explain SELECT * FROM t1
WHERE
EXISTS (SELECT * FROM t1 A INNER JOIN t2 ON t2.a = A.id
WHERE A.a=t1.a AND t2.b < 20);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	100	Using where
2	DEPENDENT SUBQUERY	A	ref	PRIMARY,a	a	5	test.t1.a	1	
2	DEPENDENT SUBQUERY	t2	ref	a,b	a	5	test.A.id	1	Using where
set optimizer_switch= @save_optimizer_switch;
set optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
drop table t1,t2;
#
# MDEV-21495: Conditional jump or move depends on uninitialised value in sel_arg_range_seq_next
#
CREATE TABLE t1(a INT, b INT);
INSERT INTO t1 SELECT seq, seq from seq_1_to_100;
set optimizer_use_condition_selectivity=4;
ANALYZE TABLE t1 PERSISTENT FOR ALL;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
SELECT * from t1 WHERE a = 5 and b = 5;
a	b
5	5
set optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
drop table t1;
# End of 10.1 tests
#
# MDEV-22583: Selectivity for BIT columns in filtered column for EXPLAIN is incorrect
#
SET optimizer_use_condition_selectivity=4;
SET histogram_size=255;
CREATE TABLE t1 (a BIT(32), b INT);
INSERT INTO t1 VALUES (80, 80), (81, 81), (82, 82);
ANALYZE TABLE t1 PERSISTENT FOR ALL;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
EXPLAIN EXTENDED SELECT * from t1 where t1.a >= 81;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	66.41	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`a` >= 81
SELECT HEX(a), b from t1 where t1.a >= 81;
HEX(a)	b
51	81
52	82
set optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
set histogram_size=@save_histogram_size;
DROP TABLE t1;
#
# MDEV-19474: Histogram statistics are used even with optimizer_use_condition_selectivity=3
#
CREATE TABLE t1(a int);
INSERT INTO t1 values (1),(2),(2),(3),(4);
SET optimizer_use_condition_selectivity=4;
SET histogram_size= 255;
set use_stat_tables='preferably';
ANALYZE TABLE t1 PERSISTENT FOR ALL;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
EXPLAIN EXTENDED SELECT * FROM t1 WHERE a=2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	39.84	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 2
SET optimizer_use_condition_selectivity=3;
# filtered should show 25 %
EXPLAIN EXTENDED SELECT * FROM t1 WHERE a=2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	25.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 2
FLUSH TABLES;
EXPLAIN EXTENDED SELECT * FROM t1 WHERE a=2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	5	25.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 2
set optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
set histogram_size=@save_histogram_size;
set use_stat_tables= @save_use_stat_tables;
DROP TABLE t1;
# End of 10.2 tests
set @@global.histogram_size=@save_histogram_size;