2
# Bug with distinct and INSERT INTO
3
# Bug with group by and not used fields
7
drop table if exists t1,t2,t3;
10
CREATE TABLE t1 (id int,facility char(20));
11
CREATE TABLE t2 (facility char(20));
12
INSERT INTO t1 VALUES (NULL,NULL);
13
INSERT INTO t1 VALUES (-1,'');
14
INSERT INTO t1 VALUES (0,'');
15
INSERT INTO t1 VALUES (1,'/L');
16
INSERT INTO t1 VALUES (2,'A01');
17
INSERT INTO t1 VALUES (3,'ANC');
18
INSERT INTO t1 VALUES (4,'F01');
19
INSERT INTO t1 VALUES (5,'FBX');
20
INSERT INTO t1 VALUES (6,'MT');
21
INSERT INTO t1 VALUES (7,'P');
22
INSERT INTO t1 VALUES (8,'RV');
23
INSERT INTO t1 VALUES (9,'SRV');
24
INSERT INTO t1 VALUES (10,'VMT');
25
INSERT INTO t2 SELECT DISTINCT FACILITY FROM t1;
27
select id from t1 group by id;
28
select * from t1 order by id;
29
select id-5,facility from t1 order by "id-5";
30
select id,concat(facility) from t1 group by id ;
31
select id+0 as a,max(id),concat(facility) as b from t1 group by a order by b desc,a;
32
select id >= 0 and id <= 5 as grp,count(*) from t1 group by grp;
34
SELECT DISTINCT FACILITY FROM t1;
35
SELECT FACILITY FROM t2;
36
SELECT count(*) from t1,t2 where t1.facility=t2.facility;
37
select count(facility) from t1;
38
select count(*) from t1;
39
select count(*) from t1 where facility IS NULL;
40
select count(*) from t1 where facility = NULL;
41
select count(*) from t1 where facility IS NOT NULL;
42
select count(*) from t1 where id IS NULL;
43
select count(*) from t1 where id IS NOT NULL;
48
# Problem with distinct without results
50
CREATE TABLE t1 (UserId int DEFAULT '0' NOT NULL);
51
INSERT INTO t1 VALUES (20);
52
INSERT INTO t1 VALUES (27);
54
SELECT UserId FROM t1 WHERE Userid=22;
55
SELECT UserId FROM t1 WHERE UserId=22 group by Userid;
56
SELECT DISTINCT UserId FROM t1 WHERE UserId=22 group by Userid;
57
SELECT DISTINCT UserId FROM t1 WHERE UserId=22;
64
CREATE TABLE t1 (a int not null primary key,b int);
65
INSERT INTO t1 VALUES (1,1),(2,1),(3,1),(4,1);
66
CREATE TABLE t2 (a int not null, key (A));
67
INSERT INTO t2 VALUES (1),(2);
68
CREATE TABLE t3 (a int, key(A), b text);
69
INSERT INTO t3 VALUES (1,'1'),(2,'2');
70
SELECT DISTINCT t3.b FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
71
INSERT INTO t2 values (1),(2),(3);
72
INSERT INTO t3 VALUES (1,'1'),(2,'2'),(1,'1'),(2,'2');
73
explain SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
74
SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
76
# Create a lot of data into t3;
77
create temporary table t4 select * from t3;
78
insert into t3 select * from t4;
79
insert into t4 select * from t3;
80
insert into t3 select * from t4;
81
insert into t4 select * from t3;
82
insert into t3 select * from t4;
83
insert into t4 select * from t3;
84
insert into t3 select * from t4;
86
explain select distinct t1.a from t1,t3 where t1.a=t3.a;
88
select distinct t1.a from t1,t3 where t1.a=t3.a;
89
#show status like 'Handler%';
91
select distinct 1 from t1,t3 where t1.a=t3.a;
92
#show status like 'Handler%';
94
explain SELECT distinct t1.a from t1;
95
explain SELECT distinct t1.a from t1 order by a desc;
96
explain SELECT t1.a from t1 group by a order by a desc;
97
explain SELECT distinct t1.a from t1 order by a desc limit 1;
98
explain SELECT distinct a from t3 order by a desc limit 2;
99
explain SELECT distinct a,b from t3 order by a+1;
100
explain SELECT distinct a,b from t3 order by a limit 2;
101
explain SELECT a,b from t3 group by a,b order by a+1;
103
drop table t1,t2,t3,t4;
105
CREATE TABLE t1 (name varchar(255));
106
INSERT INTO t1 VALUES ('aa'),('ab'),('ac'),('ad'),('ae');
107
SELECT DISTINCT * FROM t1 LIMIT 2;
108
SELECT DISTINCT name FROM t1 LIMIT 2;
109
SELECT DISTINCT 1 FROM t1 LIMIT 2;
113
ID int NOT NULL auto_increment,
114
NAME varchar(75) DEFAULT '' NOT NULL,
115
LINK_ID int DEFAULT '0' NOT NULL,
118
KEY LINK_ID (LINK_ID)
121
INSERT INTO t1 (ID, NAME, LINK_ID) VALUES (1,'Mike',0),(2,'Jack',0),(3,'Bill',0);
124
ID int NOT NULL auto_increment,
125
NAME varchar(150) DEFAULT '' NOT NULL,
131
t2.id AS key_link_id,
134
LEFT JOIN t2 ON t1.link_id=t2.id
140
# Problem with table dependencies
145
name tinytext not null,
158
insert into t1 values (1,'yes'), (2,'no');
159
insert into t2 values (1,1);
160
insert into t3 values (1,1);
171
t1 as j_lj_t2 left join t2 as t2_lj
172
on j_lj_t2.id=t2_lj.id
174
t1 as j_lj_t3 left join t3 as t3_lj
175
on j_lj_t3.id=t3_lj.id
177
((t1.id=j_lj_t2.id AND t2_lj.id IS NULL) OR (t1.id=t2.id AND t2.idx=2))
178
AND ((t1.id=j_lj_t3.id AND t3_lj.id IS NULL) OR (t1.id=t3.id AND t3.idx=2));
188
t1 as j_lj_t2 left join t2 as t2_lj
189
on j_lj_t2.id=t2_lj.id
191
t1 as j_lj_t3 left join t3 as t3_lj
192
on j_lj_t3.id=t3_lj.id
194
((t1.id=j_lj_t2.id AND t2_lj.id IS NULL) OR (t1.id=t2.id AND t2.idx=2))
195
AND ((t1.id=j_lj_t3.id AND t3_lj.id IS NULL) OR (t1.id=t3.id AND t3.idx=2));
199
# Test using DISTINCT on a function that contains a group function
200
# This also test the case when one doesn't use all fields in GROUP BY.
203
create table t1 (a int not null, b int not null, t time);
204
insert into t1 values (1,1,"00:06:15"),(1,2,"00:06:15"),(1,2,"00:30:15"),(1,3,"00:06:15"),(1,3,"00:30:15");
205
select a,sec_to_time(sum(time_to_sec(t))) from t1 group by a,b;
206
select distinct a,sec_to_time(sum(time_to_sec(t))) from t1 group by a,b;
207
create table t2 (a int not null primary key, b int);
208
insert into t2 values (1,1),(2,2),(3,3);
209
select t1.a,sec_to_time(sum(time_to_sec(t))) from t1 left join t2 on (t1.b=t2.a) group by t1.a,t2.b;
210
select distinct t1.a,sec_to_time(sum(time_to_sec(t))) from t1 left join t2 on (t1.b=t2.a) group by t1.a,t2.b;
214
# Test problem with DISTINCT and HAVING
216
create table t1 (a int not null,b char(5), c text);
217
insert into t1 (a) values (1),(2),(3),(4),(1),(2),(3),(4);
218
select distinct a from t1 group by b,a having a > 2 order by a desc;
219
select distinct a,c from t1 group by b,c,a having a > 2 order by a desc;
223
# Test problem with DISTINCT and ORDER BY DESC
226
create table t1 (a char(1), key(a)) engine=myisam;
227
insert into t1 values('1'),('1');
228
select * from t1 where a >= '1';
229
select distinct a from t1 order by a desc;
230
select distinct a from t1 where a >= '1' order by a desc;
234
# Test when using a not previously used column in ORDER BY
237
CREATE TABLE t1 (email varchar(50), infoID BIGINT, dateentered DATETIME);
238
CREATE TABLE t2 (infoID BIGINT, shipcode varchar(10));
240
INSERT INTO t1 (email, infoID, dateentered) VALUES
241
('test1@testdomain.com', 1, '2002-07-30 22:56:38'),
242
('test1@testdomain.com', 1, '2002-07-27 22:58:16'),
243
('test2@testdomain.com', 1, '2002-06-19 15:22:19'),
244
('test2@testdomain.com', 2, '2002-06-18 14:23:47'),
245
('test3@testdomain.com', 1, '2002-05-19 22:17:32');
247
INSERT INTO t2(infoID, shipcode) VALUES
251
SELECT DISTINCTROW email, shipcode FROM t1, t2 WHERE t1.infoID=t2.infoID;
252
SELECT DISTINCTROW email FROM t1 ORDER BY dateentered DESC;
253
SELECT DISTINCTROW email, shipcode FROM t1, t2 WHERE t1.infoID=t2.infoID ORDER BY dateentered DESC;
257
# test with table.* in DISTINCT
260
CREATE TABLE t1 (privatemessageid int NOT NULL auto_increment, folderid int NOT NULL default '0', userid int NOT NULL default '0', touserid int NOT NULL default '0', fromuserid int NOT NULL default '0', title varchar(250) NOT NULL default '', message mediumtext NOT NULL, dateline int NOT NULL default '0', showsignature int NOT NULL default '0', iconid int NOT NULL default '0', messageread int NOT NULL default '0', readtime int NOT NULL default '0', receipt int NOT NULL default '0', deleteprompt int NOT NULL default '0', multiplerecipients int NOT NULL default '0', PRIMARY KEY (privatemessageid), KEY userid (userid)) ENGINE=MyISAM;
261
INSERT INTO t1 VALUES (128,0,33,33,8,':D','',996121863,1,0,2,996122850,2,0,0);
262
CREATE TABLE t2 (userid int NOT NULL auto_increment, usergroupid int NOT NULL default '0', username varchar(50) NOT NULL default '', password varchar(50) NOT NULL default '', email varchar(50) NOT NULL default '', styleid int NOT NULL default '0', parentemail varchar(50) NOT NULL default '', coppauser int NOT NULL default '0', homepage varchar(100) NOT NULL default '', icq varchar(20) NOT NULL default '', aim varchar(20) NOT NULL default '', yahoo varchar(20) NOT NULL default '', signature mediumtext NOT NULL, adminemail int NOT NULL default '0', showemail int NOT NULL default '0', invisible int NOT NULL default '0', usertitle varchar(250) NOT NULL default '', customtitle int NOT NULL default '0', joindate int NOT NULL default '0', cookieuser int NOT NULL default '0', daysprune int NOT NULL default '0', lastvisit int NOT NULL default '0', lastactivity int NOT NULL default '0', lastpost int NOT NULL default '0', posts int NOT NULL default '0', timezoneoffset varchar(4) NOT NULL default '', emailnotification int NOT NULL default '0', buddylist mediumtext NOT NULL, ignorelist mediumtext NOT NULL, pmfolders mediumtext NOT NULL, receivepm int NOT NULL default '0', emailonpm int NOT NULL default '0', pmpopup int NOT NULL default '0', avatarid int NOT NULL default '0', avatarrevision int NOT NULL default '0', options int NOT NULL default '15', birthday date NOT NULL default '0000-00-00', maxposts int NOT NULL default '-1', startofweek int NOT NULL default '1', ipaddress varchar(20) NOT NULL default '', referrerid int NOT NULL default '0', nosessionhash int NOT NULL default '0', autorefresh int NOT NULL default '-1', messagepopup int NOT NULL default '0', inforum int NOT NULL default '0', ratenum int NOT NULL default '0', ratetotal int NOT NULL default '0', allowrate int NOT NULL default '1', PRIMARY KEY (userid), KEY usergroupid (usergroupid), KEY username (username), KEY inforum (inforum)) ENGINE=MyISAM;
263
INSERT INTO t2 VALUES (33,6,'Kevin','0','kevin@stileproject.com',1,'',0,'http://www.stileproject.com','','','','',1,1,0,'Administrator',0,996120694,1,-1,1030996168,1031027028,1030599436,36,'-6',0,'','','',1,0,1,0,0,15,'0000-00-00',-1,1,'64.0.0.0',0,1,-1,0,0,4,19,1);
264
SELECT DISTINCT t1.*, t2.* FROM t1 LEFT JOIN t2 ON (t2.userid = t1.touserid);
268
# test with const_item in ORDER BY
271
CREATE TABLE t1 (a int primary key, b int, c int);
272
INSERT t1 VALUES (1,2,3);
273
CREATE TABLE t2 (a int primary key, b int, c int);
274
INSERT t2 VALUES (3,4,5);
275
SELECT DISTINCT t1.a, t2.b FROM t1, t2 WHERE t1.a=1 ORDER BY t2.c;
279
# Test of LEFT() with distinct
282
CREATE table t1 ( `id` int NOT NULL auto_increment, `name` varchar(50) NOT NULL default '', PRIMARY KEY (`id`)) ENGINE=MyISAM AUTO_INCREMENT=3 ;
283
INSERT INTO t1 VALUES (1, 'aaaaa');
284
INSERT INTO t1 VALUES (3, 'aaaaa');
285
INSERT INTO t1 VALUES (2, 'eeeeeee');
286
select distinct left(name,1) as name from t1;
290
# Test case from sel000100
294
ID int NOT NULL auto_increment,
295
NAME varchar(75) DEFAULT '' NOT NULL,
296
LINK_ID int DEFAULT '0' NOT NULL,
299
KEY LINK_ID (LINK_ID)
302
INSERT INTO t1 (ID, NAME, LINK_ID) VALUES (1,'Mike',0);
303
INSERT INTO t1 (ID, NAME, LINK_ID) VALUES (2,'Jack',0);
304
INSERT INTO t1 (ID, NAME, LINK_ID) VALUES (3,'Bill',0);
307
ID int NOT NULL auto_increment,
308
NAME varchar(150) DEFAULT '' NOT NULL,
314
t2.id AS key_link_id,
317
LEFT JOIN t2 ON t1.link_id=t2.id
327
html varchar(5) default NULL,
332
INSERT INTO t1 VALUES ('1',1,0);
333
SELECT DISTINCT html,SUM(rout)/(SUM(rin)+1) as 'prod' FROM t1 GROUP BY rin;
337
# Test cases for #12625: DISTINCT for a list with constants
340
CREATE TABLE t1 (a int);
341
INSERT INTO t1 VALUES (1),(2),(3),(4),(5);
342
SELECT DISTINCT a, 1 FROM t1;
343
SELECT DISTINCT 1, a FROM t1;
345
CREATE TABLE t2 (a int, b int);
346
INSERT INTO t2 VALUES (1,1),(2,2),(2,3),(2,4),(3,5);
347
SELECT DISTINCT a, b, 2 FROM t2;
348
SELECT DISTINCT 2, a, b FROM t2;
349
SELECT DISTINCT a, 2, b FROM t2;
353
# Bug#16458: Simple SELECT FOR UPDATE causes "Result Set not updatable"
356
CREATE TABLE t1(a INT PRIMARY KEY, b INT);
357
INSERT INTO t1 VALUES (1,1), (2,1), (3,1);
358
EXPLAIN SELECT DISTINCT a FROM t1;
359
EXPLAIN SELECT DISTINCT a,b FROM t1;
360
EXPLAIN SELECT DISTINCT t1_1.a, t1_1.b FROM t1 t1_1, t1 t1_2;
361
EXPLAIN SELECT DISTINCT t1_1.a, t1_1.b FROM t1 t1_1, t1 t1_2
362
WHERE t1_1.a = t1_2.a;
363
EXPLAIN SELECT a FROM t1 GROUP BY a;
364
EXPLAIN SELECT a,b FROM t1 GROUP BY a,b;
365
EXPLAIN SELECT DISTINCT a,b FROM t1 GROUP BY a,b;
367
CREATE TABLE t2(a INT, b INT NOT NULL, c INT NOT NULL, d INT,
369
INSERT INTO t2 VALUES (1,1,1,50), (1,2,3,40), (2,1,3,4);
370
EXPLAIN SELECT DISTINCT a FROM t2;
371
EXPLAIN SELECT DISTINCT a,a FROM t2;
372
EXPLAIN SELECT DISTINCT b,a FROM t2;
373
EXPLAIN SELECT DISTINCT a,c FROM t2;
374
EXPLAIN SELECT DISTINCT c,a,b FROM t2;
376
EXPLAIN SELECT DISTINCT a,b,d FROM t2 GROUP BY c,b,d;
377
CREATE UNIQUE INDEX c_b_unq ON t2 (c,b);
378
EXPLAIN SELECT DISTINCT a,b,d FROM t2 GROUP BY c,b,d;
382
# Bug 9784 DISTINCT IFNULL truncates data
384
create table t1 (id int, dsc varchar(50));
385
insert into t1 values (1, "line number one"), (2, "line number two"), (3, "line number three");
386
select distinct id, IFNULL(dsc, '-') from t1;
390
# Bug 21456: SELECT DISTINCT(x) produces incorrect results when using order by
392
CREATE TABLE t1 (a int primary key, b int);
394
INSERT INTO t1 (a,b) values (1,1), (2,3), (3,2);
396
explain SELECT DISTINCT a, b FROM t1 ORDER BY b;
397
SELECT DISTINCT a, b FROM t1 ORDER BY b;
404
# Bug #15745 ( COUNT(DISTINCT CONCAT(x,y)) returns wrong result)
407
ID int NOT NULL auto_increment,
408
x varchar(20) default NULL,
409
y decimal(10,0) default NULL,
414
INSERT INTO t1 VALUES
422
select count(distinct x,y) from t1;
423
select count(distinct concat(x,y)) from t1;
427
# Bug #18068: SELECT DISTINCT
429
CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a,b));
431
INSERT INTO t1 VALUES (1, 101);
432
INSERT INTO t1 SELECT a + 1, a + 101 FROM t1;
433
INSERT INTO t1 SELECT a + 2, a + 102 FROM t1;
434
INSERT INTO t1 SELECT a + 4, a + 104 FROM t1;
435
INSERT INTO t1 SELECT a + 8, a + 108 FROM t1;
437
EXPLAIN SELECT DISTINCT a,a FROM t1 WHERE b < 12 ORDER BY a;
438
SELECT DISTINCT a,a FROM t1 WHERE b < 12 ORDER BY a;
443
# Bug #25551: inconsistent behaviour in grouping NULL, depending on index type
445
CREATE TABLE t1 (a INT, UNIQUE (a));
446
INSERT INTO t1 VALUES (4),(null),(2),(1),(null),(3);
447
EXPLAIN SELECT DISTINCT a FROM t1;
448
#result must have one row with NULL
449
SELECT DISTINCT a FROM t1;
450
EXPLAIN SELECT a FROM t1 GROUP BY a;
451
#result must have one row with NULL
452
SELECT a FROM t1 GROUP BY a;
457
#Bug #27659: SELECT DISTINCT returns incorrect result set when field is
461
CREATE TABLE t1 (a INT, b INT);
462
INSERT INTO t1 VALUES(1,1),(1,2),(1,3);
463
SELECT DISTINCT a, b FROM t1;
464
SELECT DISTINCT a, a, b FROM t1;
467
--echo End of 5.0 tests
470
# Bug #34928: Confusion by having Primary Key and Index
472
CREATE TABLE t1(a INT, b INT, c INT, d INT, e INT,
473
PRIMARY KEY(a,b,c,d,e),
477
INSERT INTO t1(a, b, c) VALUES (1, 1, 1),
484
EXPLAIN SELECT DISTINCT a, b, d, c FROM t1;
486
SELECT DISTINCT a, b, d, c FROM t1;
490
--echo End of 5.1 tests