derived.test 12.6 KB
Newer Older
1 2 3 4 5
# Initialize
--disable_warnings
drop table if exists t1,t2,t3;
--enable_warnings

unknown's avatar
unknown committed
6
select * from (select 2 from DUAL) b;
7 8 9 10
-- error 1054
SELECT 1 as a FROM (SELECT 1 UNION SELECT a) b;
-- error 1054
SELECT 1 as a FROM (SELECT a UNION SELECT 1) b;
unknown's avatar
unknown committed
11 12 13 14 15
CREATE TABLE t1 (a int not null, b char (10) not null);
insert into t1 values(1,'a'),(2,'b'),(3,'c'),(3,'c');
CREATE TABLE t2 (a int not null, b char (10) not null);
insert into t2 values (3,'c'),(4,'d'),(5,'f'),(6,'e');
select t1.a,t3.y from t1,(select a as y from t2  where b='c') as t3  where t1.a = t3.y;
unknown's avatar
unknown committed
16
select t1.a,t3.a from t1,(select * from t2  where b='c') as t3  where t1.a = t3.a;
17 18 19
CREATE TABLE t3 (a int not null, b char (10) not null);
insert into t3 values (3,'f'),(4,'y'),(5,'z'),(6,'c');
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;
20
--error 1054
21
SELECT a FROM (SELECT 1 FROM (SELECT 1) a HAVING a=1) b;
22
--error 1052
23 24 25
SELECT a,b as a FROM (SELECT '1' as a,'2' as b) b  HAVING a=1;
SELECT a,2 as a FROM (SELECT '1' as a) b HAVING a=2;
SELECT a,2 as a FROM (SELECT '1' as a) b HAVING a=1;
26
--error 1054
27
SELECT 1 FROM (SELECT 1) a WHERE a=2;
28
--error 1054
29
SELECT (SELECT 1) as a FROM (SELECT 1 FROM t1  HAVING a=1) as a;
30 31
select * from t1 as x1, (select * from t1) as x2;
explain select * from t1 as x1, (select * from t1) as x2;
32
drop table if exists  t2,t3;
33 34 35
select * from (select 1) as a;
select a from (select 1 as a) as b;
select 1 from (select 1) as a;
unknown's avatar
unknown committed
36 37
select * from (select * from t1 union select * from t1) a;
select * from (select * from t1 union all select * from t1) a;
unknown's avatar
unknown committed
38
select * from (select * from t1 union all select * from t1 limit 2) a;
unknown's avatar
unknown committed
39 40
explain select * from (select * from t1 union select * from t1) a;
explain select * from (select * from t1 union all select * from t1) a;
41 42 43 44
CREATE TABLE t2 (a int not null);
insert into t2 values(1);
select * from (select * from t1 where t1.a=(select a from t2 where t2.a=t1.a)) a;
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;
46
drop table t1, t2;
unknown's avatar
unknown committed
47 48 49 50 51 52 53 54 55
create table t1(a int not null, t char(8), index(a));
disable_query_log;
let $1 = 10000;
while ($1)
 {
  eval insert into t1 values ($1,'$1'); 
  dec $1;
 }
enable_query_log;
56
SELECT * FROM (SELECT * FROM t1) as b ORDER BY a  ASC LIMIT 0,20;
unknown's avatar
unknown committed
57
explain select count(*) from t1 as tt1, (select * from t1) as tt2;
58
drop table t1;
59
SELECT * FROM (SELECT (SELECT * FROM (SELECT 1 as a) as a )) as b;
unknown's avatar
unknown committed
60
select * from (select 1 as a) b  left join (select 2 as a) c using(a);
61 62
--error 1054
SELECT * FROM (SELECT 1 UNION SELECT a) b;
63 64 65 66
--error 1054
SELECT 1 as a FROM (SELECT a UNION SELECT 1) b;
--error 1054
SELECT 1 as a FROM (SELECT 1 UNION SELECT a) b;
67 68
--error 1054
select 1 from  (select 2) a order by 0;
69 70 71 72 73 74 75 76 77

#
# Test of explain (bug #251)
#

create table t1 (id int);
insert into t1 values (1),(2),(3);
describe select * from (select * from t1 group by id) bar;
drop table t1;
unknown's avatar
unknown committed
78 79 80 81 82 83 84 85 86

#
# test->used_keys test for derived tables
#
create table t1 (mat_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, matintnum CHAR(6) NOT NULL, test MEDIUMINT UNSIGNED NULL);
create table t2 (mat_id MEDIUMINT UNSIGNED NOT NULL, pla_id MEDIUMINT UNSIGNED NOT NULL);
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);
insert into t2 values (1, 100), (1, 101), (1, 102), (2, 100), (2, 103), (2, 104), (3, 101), (3, 102), (3, 105);

87 88
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;
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;
unknown's avatar
unknown committed
89

90 91
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;
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;
92
drop table t1,t2;
unknown's avatar
unknown committed
93

94 95 96 97
#
# derived table reference
#
SELECT a.x FROM (SELECT 1 AS x) AS a HAVING a.x = 1;
unknown's avatar
unknown committed
98 99 100 101 102

#
# Test for select if database is not selected.
#
# Connect without a database
103
create table t1 select 1 as a;
unknown's avatar
unknown committed
104
connect (con1,localhost,mysqltest_1,,*NO-ONE*,$MASTER_MYPORT,$MASTER_MYSOCK);
unknown's avatar
unknown committed
105 106
connection con1;
--error 1046
107
select 2 as a from (select * from t1) b;
unknown's avatar
unknown committed
108
use test;
109 110
select 2 as a from (select * from t1) b;
drop table t1;
unknown's avatar
unknown committed
111 112
--error 1064
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;
113 114 115 116 117 118

#
# UPDATE/DELETE/INSERT of derived tables
#
create table t1 (a int);
insert into t1 values (1),(2),(3);
unknown's avatar
unknown committed
119
-- error 1288
120
update (select * from t1) as t1 set a = 5;
unknown's avatar
unknown committed
121
-- error 1064
122
delete from (select * from t1);
unknown's avatar
unknown committed
123
-- error 1064
124 125
insert into  (select * from t1) values (5);
drop table t1;
126 127 128 129 130 131 132 133 134 135

#
# deived tables with subquery inside all by one table
#
create table t1 (E1 INTEGER UNSIGNED NOT NULL, E2 INTEGER UNSIGNED NOT NULL, E3 INTEGER UNSIGNED NOT NULL, PRIMARY KEY(E1)
);
insert into t1 VALUES(1,1,1), (2,2,1);
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;
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;
drop table t1;
136 137 138 139 140 141

create table t1 (a int);
insert into t1 values (1),(2);
select * from ( select * from t1 union select * from t1) a,(select * from t1 union select * from t1) b;
explain select * from ( select * from t1 union select * from t1) a,(select * from t1 union select * from t1) b;
drop table t1;
142

143 144 145 146 147
#
# multi-update & multi-delete with derived tables
#
CREATE TABLE `t1` (
  `N` int(11) unsigned NOT NULL default '0',
unknown's avatar
unknown committed
148
  `M` tinyint(1) default '0'
unknown's avatar
unknown committed
149
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
150 151 152
INSERT INTO `t1` (N, M) VALUES (1, 0),(1, 0),(1, 0),(2, 0),(2, 0),(3, 0);
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;
select * from t1;
unknown's avatar
unknown committed
153
-- error 1288
154
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;
unknown's avatar
unknown committed
155 156
-- error 1054
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;
157 158
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;
select * from t1;
159
--replace_result P2 p2
160
--error 1288
161
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;
unknown's avatar
unknown committed
162 163
-- error 1054
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;
164
drop table t1;
unknown's avatar
Merge  
unknown committed
165

166 167 168 169 170 171 172 173
#
# correct lex->current_select
#
CREATE TABLE t1 (
  OBJECTID int(11) NOT NULL default '0',
  SORTORDER int(11) NOT NULL auto_increment,
  KEY t1_SortIndex (SORTORDER),
  KEY t1_IdIndex (OBJECTID)
unknown's avatar
unknown committed
174
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
175 176 177 178 179
CREATE TABLE t2 (
  ID int(11) default NULL,
  PARID int(11) default NULL,
  UNIQUE KEY t2_ID_IDX (ID),
  KEY t2_PARID_IDX (PARID)
unknown's avatar
unknown committed
180
) engine=MyISAM DEFAULT CHARSET=latin1;
181 182 183 184 185
INSERT INTO t2 VALUES (1000,0),(1001,0),(1002,0),(1003,0),(1008,1),(1009,1),(1010,1),(1011,1),(1016,2);
CREATE TABLE t3 (
  ID int(11) default NULL,
  DATA decimal(10,2) default NULL,
  UNIQUE KEY t3_ID_IDX (ID)
unknown's avatar
unknown committed
186
) engine=MyISAM DEFAULT CHARSET=latin1;
187 188 189
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);
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;
drop table t1, t2, t3;
190 191 192 193 194 195 196 197

#
# explain derived
#
CREATE TABLE t1 (name char(1) default NULL, val int(5) default NULL);
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);
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;
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;
198 199 200 201 202 203 204 205 206 207
drop table t1;

#
# "Using index" in explain
#
create table t2 (a int, b int, primary key (a));
insert into t2 values (1,7),(2,7);
explain select a from t2 where a>1;
explain select a from (select a from t2 where a>1) tt;
drop table t2;
unknown's avatar
merge  
unknown committed
208

209 210 211 212 213 214 215
#
# select list counter
#
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_`));
insert into t1 values (128, 'rozn', 2, now(), 10),(128, 'rozn', 1, now(), 10);
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;
DROP TABLE t1;
216

217 218 219 220 221 222 223 224 225
#
# DISTINCT over grouped select on subquery in the FROM clause
#
create table t1 (a integer, b integer);
insert into t1 values (1,4), (2,2),(2,2), (4,1),(4,1),(4,1),(4,1);
select distinct sum(b) from t1 group by a;
select distinct sum(b) from (select a,b from t1) y group by a;
drop table t1;

unknown's avatar
unknown committed
226

227 228 229 230 231 232 233 234 235 236 237 238
#
# Test for bug #7413 "Subquery with non-scalar results participating in
# select list of derived table crashes server" aka "VIEW with sub query can
# cause the MySQL server to crash". If we have encountered problem during
# filling of derived table we should report error and perform cleanup
# properly.
#
CREATE TABLE t1 (a char(10), b char(10));
INSERT INTO t1 VALUES ('root','localhost'), ('root','%');
--error 1242
SELECT * FROM (SELECT (SELECT a.a FROM t1 AS a WHERE a.a = b.a) FROM t1 AS b) AS c;
DROP TABLE t1;
239 240 241 242 243 244 245 246 247 248 249 250
#
# test of union subquery in the FROM clause with complex distinct/all (BUG#6565)
#
create table t1(a int);
create table t2(a int);
create table t3(a int);
insert into t1 values(1),(1);
insert into t2 values(2),(2);
insert into t3 values(3),(3);
select * from t1 union distinct select * from t2 union all select * from t3;
select * from (select * from t1 union distinct select * from t2 union all select * from t3) X;
drop table t1, t2, t3;
251

252 253 254 255 256 257 258 259 260
#
# Bug #11864 non unique names are allowed in subquery
#
create table t1 (a int);
create table t2 (a int);
--error 1060
select * from (select * from t1,t2) foo;
drop table t1,t2;

unknown's avatar
unknown committed
261 262 263 264 265 266 267 268 269 270 271 272 273
#
# Bug#10586 - query works with 4.1.8, but not with 4.1.11
#
create table t1 (ID int unsigned not null auto_increment,
                 DATA varchar(5) not null, primary key (ID));
create table t2 (ID int unsigned not null auto_increment,
                 DATA varchar(5) not null, FID int unsigned not null,
                 primary key (ID));
select A.* from (t1 inner join (select * from t2) as A on t1.ID = A.FID);
select t2.* from ((select * from t1) as A inner join t2 on A.ID = t2.FID);
select t2.* from (select * from t1) as A inner join t2 on A.ID = t2.FID;
drop table t1, t2;

274
# End of 4.1 tests