3
drop table if exists t1,t2,t3;
6
select * from (select 2 from DUAL) b;
8
SELECT 1 as a FROM (SELECT 1 UNION SELECT a) b;
10
SELECT 1 as a FROM (SELECT a UNION SELECT 1) b;
11
CREATE TABLE t1 (a int not null, b char (10) not null);
12
insert into t1 values(1,'a'),(2,'b'),(3,'c'),(3,'c');
13
CREATE TABLE t2 (a int not null, b char (10) not null);
14
insert into t2 values (3,'c'),(4,'d'),(5,'f'),(6,'e');
15
select t1.a,t3.y from t1,(select a as y from t2 where b='c') as t3 where t1.a = t3.y;
16
select t1.a,t3.a from t1,(select * from t2 where b='c') as t3 where t1.a = t3.a;
17
CREATE TABLE t3 (a int not null, b char (10) not null);
18
insert into t3 values (3,'f'),(4,'y'),(5,'z'),(6,'c');
19
select t1.a,t4.y from t1,(select t2.a as y from t2,(select t3.b from t3 where t3.a>3) as t5 where t2.b=t5.b) as t4 where t1.a = t4.y;
21
SELECT a FROM (SELECT 1 FROM (SELECT 1) a HAVING a=1) b;
23
SELECT a,b as a FROM (SELECT '1' as a,'2' as b) b HAVING a=1;
24
SELECT a,2 as a FROM (SELECT '1' as a) b HAVING a=2;
25
SELECT a,2 as a FROM (SELECT '1' as a) b HAVING a=1;
27
SELECT 1 FROM (SELECT 1) a WHERE a=2;
29
SELECT (SELECT 1) as a FROM (SELECT 1 FROM t1 HAVING a=1) as a;
30
select * from t1 as x1, (select * from t1) as x2;
31
explain select * from t1 as x1, (select * from t1) as x2;
32
drop table if exists t2,t3;
33
select * from (select 1) as a;
34
select a from (select 1 as a) as b;
35
select 1 from (select 1) as a;
36
select * from (select * from t1 union select * from t1) a;
37
select * from (select * from t1 union all select * from t1) a;
38
select * from (select * from t1 union all select * from t1 limit 2) a;
39
explain select * from (select * from t1 union select * from t1) a;
40
explain select * from (select * from t1 union all select * from t1) a;
41
CREATE TABLE t2 (a int not null);
42
insert into t2 values(1);
43
select * from (select * from t1 where t1.a=(select a from t2 where t2.a=t1.a)) a;
44
select * from (select * from t1 where t1.a=(select t2.a from t2 where t2.a=t1.a) union select t1.a, t1.b from t1) a;
45
explain select * from (select t1.*, t2.a as t2a from t1,t2 where t1.a=t2.a) t1;
47
create table t1(a int not null, t char(8), index(a));
52
eval insert into t1 values ($1,'$1');
56
SELECT * FROM (SELECT * FROM t1) as b ORDER BY a ASC LIMIT 0,20;
57
explain select count(*) from t1 as tt1, (select * from t1) as tt2;
59
SELECT * FROM (SELECT (SELECT * FROM (SELECT 1 as a) as a )) as b;
60
select * from (select 1 as a) b left join (select 2 as a) c using(a);
62
SELECT * FROM (SELECT 1 UNION SELECT a) b;
64
SELECT 1 as a FROM (SELECT a UNION SELECT 1) b;
66
SELECT 1 as a FROM (SELECT 1 UNION SELECT a) b;
68
select 1 from (select 2) a order by 0;
71
# Test of explain (bug #251)
74
create table t1 (id int);
75
insert into t1 values (1),(2),(3);
76
describe select * from (select * from t1 group by id) bar;
80
# test->used_keys test for derived tables
82
create table t1 (mat_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, matintnum CHAR(6) NOT NULL, test MEDIUMINT UNSIGNED NULL);
83
create table t2 (mat_id MEDIUMINT UNSIGNED NOT NULL, pla_id MEDIUMINT UNSIGNED NOT NULL);
84
insert into t1 values (NULL, 'a', 1), (NULL, 'b', 2), (NULL, 'c', 3), (NULL, 'd', 4), (NULL, 'e', 5), (NULL, 'f', 6), (NULL, 'g', 7), (NULL, 'h', 8), (NULL, 'i', 9);
85
insert into t2 values (1, 100), (1, 101), (1, 102), (2, 100), (2, 103), (2, 104), (3, 101), (3, 102), (3, 105);
87
SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
88
SELECT STRAIGHT_JOIN d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
90
explain SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
91
explain SELECT STRAIGHT_JOIN d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
95
# derived table reference
97
SELECT a.x FROM (SELECT 1 AS x) AS a HAVING a.x = 1;
100
# Test for select if database is not selected.
102
# Connect without a database as user mysqltest_1
103
create user mysqltest_1;
104
create table t1 select 1 as a;
105
connect (con1,localhost,mysqltest_1,,*NO-ONE*,$MASTER_MYPORT,$MASTER_MYSOCK);
108
select 2 as a from (select * from t1) b;
110
select 2 as a from (select * from t1) b;
113
select mail_id, if(folder.f_description!='', folder.f_description, folder.f_name) as folder_name, date, address_id, phrase, address, subject from folder, (select mail.mail_id as mail_id, date_format(mail.h_date, '%b %e, %Y %h:%i') as date, mail.folder_id, sender.address_id as address_id, sender.phrase as phrase, sender.address as address, mail.h_subject as subject from mail left join mxa as mxa_sender on mail.mail_id=mxa_sender.mail_id and mxa_sender.type='from' left join address as sender on mxa_sender.address_id=sender.address_id mxa as mxa_recipient, address as recipient, where 1 and mail.mail_id=mxa_recipient.mail_id and mxa_recipient.address_id=recipient.address_id and mxa_recipient.type='to' and match(sender.phrase, sender.address, sender.comment) against ('jeremy' in boolean mode) and match(recipient.phrase, recipient.address, recipient.comment) against ('monty' in boolean mode) order by mail.h_date desc limit 0, 25 ) as query where query.folder_id=folder.folder_id;
116
# UPDATE/DELETE/INSERT of derived tables
118
create table t1 (a int);
119
insert into t1 values (1),(2),(3);
121
update (select * from t1) as t1 set a = 5;
123
delete from (select * from t1);
125
insert into (select * from t1) values (5);
129
# deived tables with subquery inside all by one table
131
create table t1 (E1 INTEGER UNSIGNED NOT NULL, E2 INTEGER UNSIGNED NOT NULL, E3 INTEGER UNSIGNED NOT NULL, PRIMARY KEY(E1)
133
insert into t1 VALUES(1,1,1), (2,2,1);
134
select count(*) from t1 INNER JOIN (SELECT A.E1, A.E2, A.E3 FROM t1 AS A WHERE A.E3 = (SELECT MAX(B.E3) FROM t1 AS B WHERE A.E2 = B.E2)) AS THEMAX ON t1.E1 = THEMAX.E2 AND t1.E1 = t1.E2;
135
explain select count(*) from t1 INNER JOIN (SELECT A.E1, A.E2, A.E3 FROM t1 AS A WHERE A.E3 = (SELECT MAX(B.E3) FROM t1 AS B WHERE A.E2 = B.E2)) AS THEMAX ON t1.E1 = THEMAX.E2 AND t1.E1 = t1.E2;
138
create table t1 (a int);
139
insert into t1 values (1),(2);
140
select * from ( select * from t1 union select * from t1) a,(select * from t1 union select * from t1) b;
141
explain select * from ( select * from t1 union select * from t1) a,(select * from t1 union select * from t1) b;
145
# multi-update & multi-delete with derived tables
148
`N` int(11) unsigned NOT NULL default '0',
149
`M` tinyint(1) default '0'
150
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
151
INSERT INTO `t1` (N, M) VALUES (1, 0),(1, 0),(1, 0),(2, 0),(2, 0),(3, 0);
152
UPDATE `t1` AS P1 INNER JOIN (SELECT N FROM `t1` GROUP BY N HAVING Count(M) > 1) AS P2 ON P1.N = P2.N SET P1.M = 2;
155
UPDATE `t1` AS P1 INNER JOIN (SELECT N FROM `t1` GROUP BY N HAVING Count(M) > 1) AS P2 ON P1.N = P2.N SET P1.M = 2, P2.N = 2;
157
UPDATE `t1` AS P1 INNER JOIN (SELECT aaaa FROM `t1` GROUP BY N HAVING Count(M) > 1) AS P2 ON P1.N = P2.N SET P1.M = 2;
158
delete P1.* from `t1` AS P1 INNER JOIN (SELECT N FROM `t1` GROUP BY N HAVING Count(M) > 1) AS P2 ON P1.N = P2.N;
160
--replace_result P2 p2
161
--error ER_UNKNOWN_TABLE
162
delete P1.*,P2.* from `t1` AS P1 INNER JOIN (SELECT N FROM `t1` GROUP BY N HAVING Count(M) > 1) AS P2 ON P1.N = P2.N;
164
delete P1.* from `t1` AS P1 INNER JOIN (SELECT aaa FROM `t1` GROUP BY N HAVING Count(M) > 1) AS P2 ON P1.N = P2.N;
168
# correct lex->current_select
171
OBJECTID int(11) NOT NULL default '0',
172
SORTORDER int(11) NOT NULL auto_increment,
173
KEY t1_SortIndex (SORTORDER),
174
KEY t1_IdIndex (OBJECTID)
175
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
177
ID int(11) default NULL,
178
PARID int(11) default NULL,
179
UNIQUE KEY t2_ID_IDX (ID),
180
KEY t2_PARID_IDX (PARID)
181
) engine=MyISAM DEFAULT CHARSET=latin1;
182
INSERT INTO t2 VALUES (1000,0),(1001,0),(1002,0),(1003,0),(1008,1),(1009,1),(1010,1),(1011,1),(1016,2);
184
ID int(11) default NULL,
185
DATA decimal(10,2) default NULL,
186
UNIQUE KEY t3_ID_IDX (ID)
187
) engine=MyISAM DEFAULT CHARSET=latin1;
188
INSERT INTO t3 VALUES (1000,0.00),(1001,0.25),(1002,0.50),(1003,0.75),(1008,1.00),(1009,1.25),(1010,1.50),(1011,1.75);
189
select 497, TMP.ID, NULL from (select 497 as ID, MAX(t3.DATA) as DATA from t1 join t2 on (t1.ObjectID = t2.ID) join t3 on (t1.ObjectID = t3.ID) group by t2.ParID order by DATA DESC) as TMP;
190
drop table t1, t2, t3;
195
CREATE TABLE t1 (name char(1) default NULL, val int(5) default NULL);
196
INSERT INTO t1 VALUES ('a',1), ('a',2), ('a',2), ('a',2), ('a',3), ('a',6), ('a',7), ('a',11), ('a',11), ('a',12), ('a',13), ('a',13), ('a',20), ('b',2), ('b',3), ('b',4), ('b',5);
197
SELECT s.name, AVG(s.val) AS median FROM (SELECT x.name, x.val FROM t1 x, t1 y WHERE x.name=y.name GROUP BY x.name, x.val HAVING SUM(y.val <= x.val) >= COUNT(*)/2 AND SUM(y.val >= x.val) >= COUNT(*)/2) AS s GROUP BY s.name;
198
explain SELECT s.name, AVG(s.val) AS median FROM (SELECT x.name, x.val FROM t1 x, t1 y WHERE x.name=y.name GROUP BY x.name, x.val HAVING SUM(y.val <= x.val) >= COUNT(*)/2 AND SUM(y.val >= x.val) >= COUNT(*)/2) AS s GROUP BY s.name;
202
# "Using index" in explain
204
create table t2 (a int, b int, primary key (a));
205
insert into t2 values (1,7),(2,7);
206
explain select a from t2 where a>1;
207
explain select a from (select a from t2 where a>1) tt;
211
# select list counter
213
CREATE TABLE `t1` ( `itemid` int(11) NOT NULL default '0', `grpid` varchar(15) NOT NULL default '', `vendor` int(11) NOT NULL default '0', `date_` date NOT NULL default '0000-00-00', `price` decimal(12,2) NOT NULL default '0.00', PRIMARY KEY (`itemid`,`grpid`,`vendor`,`date_`), KEY `itemid` (`itemid`,`vendor`), KEY `itemid_2` (`itemid`,`date_`));
214
insert into t1 values (128, 'rozn', 2, curdate(), 10),
215
(128, 'rozn', 1, curdate(), 10);
216
SELECT MIN(price) min, MAX(price) max, AVG(price) avg FROM (SELECT SUBSTRING( MAX(concat(date_,";",price)), 12) price FROM t1 WHERE itemid=128 AND grpid='rozn' GROUP BY itemid, grpid, vendor) lastprices;
220
# DISTINCT over grouped select on subquery in the FROM clause
222
create table t1 (a integer, b integer);
223
insert into t1 values (1,4), (2,2),(2,2), (4,1),(4,1),(4,1),(4,1);
224
select distinct sum(b) from t1 group by a;
225
select distinct sum(b) from (select a,b from t1) y group by a;
230
# Test for bug #7413 "Subquery with non-scalar results participating in
231
# select list of derived table crashes server" aka "VIEW with sub query can
232
# cause the MySQL server to crash". If we have encountered problem during
233
# filling of derived table we should report error and perform cleanup
236
CREATE TABLE t1 (a char(10), b char(10));
237
INSERT INTO t1 VALUES ('root','localhost'), ('root','%');
239
SELECT * FROM (SELECT (SELECT a.a FROM t1 AS a WHERE a.a = b.a) FROM t1 AS b) AS c;
242
# test of union subquery in the FROM clause with complex distinct/all (BUG#6565)
244
create table t1(a int);
245
create table t2(a int);
246
create table t3(a int);
247
insert into t1 values(1),(1);
248
insert into t2 values(2),(2);
249
insert into t3 values(3),(3);
250
select * from t1 union distinct select * from t2 union all select * from t3;
251
select * from (select * from t1 union distinct select * from t2 union all select * from t3) X;
252
drop table t1, t2, t3;
255
# Bug #11864 non unique names are allowed in subquery
257
create table t1 (a int);
258
create table t2 (a int);
260
select * from (select * from t1,t2) foo;
264
# Bug#10586 - query works with 4.1.8, but not with 4.1.11
266
create table t1 (ID int unsigned not null auto_increment,
267
DATA varchar(5) not null, primary key (ID));
268
create table t2 (ID int unsigned not null auto_increment,
269
DATA varchar(5) not null, FID int unsigned not null,
271
select A.* from (t1 inner join (select * from t2) as A on t1.ID = A.FID);
272
select t2.* from ((select * from t1) as A inner join t2 on A.ID = t2.FID);
273
select t2.* from (select * from t1) as A inner join t2 on A.ID = t2.FID;
278
--source include/wait_until_disconnected.inc
280
drop user mysqltest_1;
282
--echo # End of 4.1 tests
285
# Bug #41156: List of derived tables acts like a chain of
286
# mutually-nested subqueries
290
(SELECT 0) t01, (SELECT 0) t02, (SELECT 0) t03, (SELECT 0) t04, (SELECT 0) t05,
291
(SELECT 0) t06, (SELECT 0) t07, (SELECT 0) t08, (SELECT 0) t09, (SELECT 0) t10,
292
(SELECT 0) t11, (SELECT 0) t12, (SELECT 0) t13, (SELECT 0) t14, (SELECT 0) t15,
293
(SELECT 0) t16, (SELECT 0) t17, (SELECT 0) t18, (SELECT 0) t19, (SELECT 0) t20,
294
(SELECT 0) t21, (SELECT 0) t22, (SELECT 0) t23, (SELECT 0) t24, (SELECT 0) t25,
295
(SELECT 0) t26, (SELECT 0) t27, (SELECT 0) t28, (SELECT 0) t29, (SELECT 0) t30,
296
(SELECT 0) t31, (SELECT 0) t32, (SELECT 0) t33, (SELECT 0) t34, (SELECT 0) t35,
297
(SELECT 0) t36, (SELECT 0) t37, (SELECT 0) t38, (SELECT 0) t39, (SELECT 0) t40,
298
(SELECT 0) t41, (SELECT 0) t42, (SELECT 0) t43, (SELECT 0) t44, (SELECT 0) t45,
299
(SELECT 0) t46, (SELECT 0) t47, (SELECT 0) t48, (SELECT 0) t49, (SELECT 0) t50,
300
(SELECT 0) t51, (SELECT 0) t52, (SELECT 0) t53, (SELECT 0) t54, (SELECT 0) t55,
301
(SELECT 0) t56, (SELECT 0) t57, (SELECT 0) t58, (SELECT 0) t59, (SELECT 0) t60,
302
(SELECT 0) t61; # 61 == MAX_TABLES
304
--echo # End of 5.0 tests