|
1
by brian
clean slate |
1 |
drop table if exists t0,t1,t2,t3,t4,t5;
|
2 |
CREATE TABLE t1 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
3 |
grp int default NULL,
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
4 |
a bigint default NULL,
|
|
1
by brian
clean slate |
5 |
c char(10) NOT NULL default ''
|
|
1063.9.10
by Stewart Smith
fix join_outer for MyISAM as temp only: 1x open table twice, 1x CREATE TEMP |
6 |
);
|
|
1
by brian
clean slate |
7 |
INSERT INTO t1 VALUES (1,1,'a'),(2,2,'b'),(2,3,'c'),(3,4,'E'),(3,5,'C'),(3,6,'D'),(NULL,NULL,'');
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
8 |
create table t2 (id int, a bigint not null, c char(10), d int, primary key (a));
|
|
1
by brian
clean slate |
9 |
insert into t2 values (1,1,"a",1),(3,4,"A",4),(3,5,"B",5),(3,6,"C",6),(4,7,"D",7);
|
10 |
select t1.*,t2.* from t1 JOIN t2 where t1.a=t2.a;
|
|
11 |
grp a c id a c d
|
|
12 |
1 1 a 1 1 a 1
|
|
13 |
3 4 E 3 4 A 4
|
|
14 |
3 5 C 3 5 B 5
|
|
15 |
3 6 D 3 6 C 6
|
|
16 |
select t1.*,t2.* from t1 left join t2 on (t1.a=t2.a) order by t1.grp,t1.a,t2.c;
|
|
17 |
grp a c id a c d
|
|
18 |
NULL NULL NULL NULL NULL NULL
|
|
19 |
1 1 a 1 1 a 1
|
|
20 |
2 2 b NULL NULL NULL NULL
|
|
21 |
2 3 c NULL NULL NULL NULL
|
|
22 |
3 4 E 3 4 A 4
|
|
23 |
3 5 C 3 5 B 5
|
|
24 |
3 6 D 3 6 C 6
|
|
25 |
select t1.*,t2.* from { oj t2 left outer join t1 on (t1.a=t2.a) };
|
|
26 |
grp a c id a c d
|
|
27 |
1 1 a 1 1 a 1
|
|
28 |
3 4 E 3 4 A 4
|
|
29 |
3 5 C 3 5 B 5
|
|
30 |
3 6 D 3 6 C 6
|
|
31 |
NULL NULL NULL 4 7 D 7
|
|
32 |
select t1.*,t2.* from t1 as t0,{ oj t2 left outer join t1 on (t1.a=t2.a) } WHERE t0.a=2;
|
|
33 |
grp a c id a c d
|
|
34 |
1 1 a 1 1 a 1
|
|
35 |
3 4 E 3 4 A 4
|
|
36 |
3 5 C 3 5 B 5
|
|
37 |
3 6 D 3 6 C 6
|
|
38 |
NULL NULL NULL 4 7 D 7
|
|
39 |
select t1.*,t2.* from t1 left join t2 using (a);
|
|
40 |
grp a c id a c d
|
|
41 |
1 1 a 1 1 a 1
|
|
42 |
2 2 b NULL NULL NULL NULL
|
|
43 |
2 3 c NULL NULL NULL NULL
|
|
44 |
3 4 E 3 4 A 4
|
|
45 |
3 5 C 3 5 B 5
|
|
46 |
3 6 D 3 6 C 6
|
|
47 |
NULL NULL NULL NULL NULL NULL
|
|
48 |
select t1.*,t2.* from t1 left join t2 using (a) where t1.a=t2.a;
|
|
49 |
grp a c id a c d
|
|
50 |
1 1 a 1 1 a 1
|
|
51 |
3 4 E 3 4 A 4
|
|
52 |
3 5 C 3 5 B 5
|
|
53 |
3 6 D 3 6 C 6
|
|
54 |
select t1.*,t2.* from t1 left join t2 using (a,c);
|
|
55 |
grp a c id a c d
|
|
56 |
1 1 a 1 1 a 1
|
|
57 |
2 2 b NULL NULL NULL NULL
|
|
58 |
2 3 c NULL NULL NULL NULL
|
|
59 |
3 4 E NULL NULL NULL NULL
|
|
60 |
3 5 C NULL NULL NULL NULL
|
|
61 |
3 6 D NULL NULL NULL NULL
|
|
62 |
NULL NULL NULL NULL NULL NULL
|
|
63 |
select t1.*,t2.* from t1 left join t2 using (c);
|
|
64 |
grp a c id a c d
|
|
65 |
1 1 a 1 1 a 1
|
|
66 |
1 1 a 3 4 A 4
|
|
67 |
2 2 b 3 5 B 5
|
|
68 |
2 3 c 3 6 C 6
|
|
69 |
3 4 E NULL NULL NULL NULL
|
|
70 |
3 5 C 3 6 C 6
|
|
71 |
3 6 D 4 7 D 7
|
|
72 |
NULL NULL NULL NULL NULL NULL
|
|
73 |
select t1.*,t2.* from t1 natural left outer join t2;
|
|
74 |
grp a c id a c d
|
|
75 |
1 1 a 1 1 a 1
|
|
76 |
2 2 b NULL NULL NULL NULL
|
|
77 |
2 3 c NULL NULL NULL NULL
|
|
78 |
3 4 E NULL NULL NULL NULL
|
|
79 |
3 5 C NULL NULL NULL NULL
|
|
80 |
3 6 D NULL NULL NULL NULL
|
|
81 |
NULL NULL NULL NULL NULL NULL
|
|
82 |
select t1.*,t2.* from t1 left join t2 on (t1.a=t2.a) where t2.id=3;
|
|
83 |
grp a c id a c d
|
|
84 |
3 4 E 3 4 A 4
|
|
85 |
3 5 C 3 5 B 5
|
|
86 |
3 6 D 3 6 C 6
|
|
87 |
select t1.*,t2.* from t1 left join t2 on (t1.a=t2.a) where t2.id is null;
|
|
88 |
grp a c id a c d
|
|
89 |
2 2 b NULL NULL NULL NULL
|
|
90 |
2 3 c NULL NULL NULL NULL
|
|
91 |
NULL NULL NULL NULL NULL NULL
|
|
92 |
explain select t1.*,t2.* from t1,t2 where t1.a=t2.a and isnull(t2.a)=1;
|
|
93 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
|
1063.9.10
by Stewart Smith
fix join_outer for MyISAM as temp only: 1x open table twice, 1x CREATE TEMP |
94 |
1 SIMPLE NULL NULL NULL NULL NULL NULL # Impossible WHERE
|
|
1
by brian
clean slate |
95 |
explain select t1.*,t2.* from t1 left join t2 on t1.a=t2.a where isnull(t2.a)=1;
|
96 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
|
1063.9.10
by Stewart Smith
fix join_outer for MyISAM as temp only: 1x open table twice, 1x CREATE TEMP |
97 |
1 SIMPLE t1 ALL NULL NULL NULL NULL #
|
98 |
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 8 test.t1.a # Using where
|
|
|
1
by brian
clean slate |
99 |
select t1.*,t2.*,t3.a from t1 left join t2 on (t1.a=t2.a) left join t1 as t3 on (t2.a=t3.a);
|
100 |
grp a c id a c d a
|
|
101 |
1 1 a 1 1 a 1 1
|
|
102 |
2 2 b NULL NULL NULL NULL NULL
|
|
103 |
2 3 c NULL NULL NULL NULL NULL
|
|
104 |
3 4 E 3 4 A 4 4
|
|
105 |
3 5 C 3 5 B 5 5
|
|
106 |
3 6 D 3 6 C 6 6
|
|
107 |
NULL NULL NULL NULL NULL NULL NULL
|
|
108 |
explain select t1.*,t2.*,t3.a from t1 left join t2 on (t3.a=t2.a) left join t1 as t3 on (t1.a=t3.a);
|
|
109 |
ERROR 42S22: Unknown column 't3.a' in 'on clause'
|
|
110 |
select t1.*,t2.*,t3.a from t1 left join t2 on (t3.a=t2.a) left join t1 as t3 on (t1.a=t3.a);
|
|
111 |
ERROR 42S22: Unknown column 't3.a' in 'on clause'
|
|
112 |
select t1.*,t2.*,t3.a from t1 left join t2 on (t3.a=t2.a) left join t1 as t3 on (t2.a=t3.a);
|
|
113 |
ERROR 42S22: Unknown column 't3.a' in 'on clause'
|
|
114 |
select t1.*,t2.* from t1 inner join t2 using (a);
|
|
115 |
grp a c id a c d
|
|
116 |
1 1 a 1 1 a 1
|
|
117 |
3 4 E 3 4 A 4
|
|
118 |
3 5 C 3 5 B 5
|
|
119 |
3 6 D 3 6 C 6
|
|
120 |
select t1.*,t2.* from t1 inner join t2 on (t1.a=t2.a);
|
|
121 |
grp a c id a c d
|
|
122 |
1 1 a 1 1 a 1
|
|
123 |
3 4 E 3 4 A 4
|
|
124 |
3 5 C 3 5 B 5
|
|
125 |
3 6 D 3 6 C 6
|
|
126 |
select t1.*,t2.* from t1 natural join t2;
|
|
127 |
grp a c id a c d
|
|
128 |
1 1 a 1 1 a 1
|
|
129 |
drop table t1,t2;
|
|
130 |
CREATE TABLE t1 (
|
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
131 |
usr_id INT NOT NULL,
|
132 |
uniq_id INT NOT NULL AUTO_INCREMENT,
|
|
133 |
start_num INT NOT NULL DEFAULT 1,
|
|
134 |
increment INT NOT NULL DEFAULT 1,
|
|
|
1
by brian
clean slate |
135 |
PRIMARY KEY (uniq_id),
|
136 |
INDEX usr_uniq_idx (usr_id, uniq_id),
|
|
137 |
INDEX uniq_usr_idx (uniq_id, usr_id)
|
|
138 |
);
|
|
139 |
CREATE TABLE t2 (
|
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
140 |
id INT NOT NULL DEFAULT 0,
|
141 |
usr2_id INT NOT NULL DEFAULT 0,
|
|
142 |
max INT NOT NULL DEFAULT 0,
|
|
143 |
c_amount INT NOT NULL DEFAULT 0,
|
|
144 |
d_max INT NOT NULL DEFAULT 0,
|
|
145 |
d_num INT NOT NULL DEFAULT 0,
|
|
146 |
orig_time INT NOT NULL DEFAULT 0,
|
|
147 |
c_time INT NOT NULL DEFAULT 0,
|
|
|
1
by brian
clean slate |
148 |
active ENUM ("no","yes") NOT NULL,
|
149 |
PRIMARY KEY (id,usr2_id),
|
|
150 |
INDEX id_idx (id),
|
|
151 |
INDEX usr2_idx (usr2_id)
|
|
152 |
);
|
|
153 |
INSERT INTO t1 VALUES (3,NULL,0,50),(3,NULL,0,200),(3,NULL,0,25),(3,NULL,0,84676),(3,NULL,0,235),(3,NULL,0,10),(3,NULL,0,3098),(3,NULL,0,2947),(3,NULL,0,8987),(3,NULL,0,8347654),(3,NULL,0,20398),(3,NULL,0,8976),(3,NULL,0,500),(3,NULL,0,198);
|
|
154 |
SELECT t1.usr_id,t1.uniq_id,t1.increment,
|
|
155 |
t2.usr2_id,t2.c_amount,t2.max
|
|
156 |
FROM t1
|
|
157 |
LEFT JOIN t2 ON t2.id = t1.uniq_id
|
|
158 |
WHERE t1.uniq_id = 4
|
|
159 |
ORDER BY t2.c_amount;
|
|
160 |
usr_id uniq_id increment usr2_id c_amount max
|
|
161 |
3 4 84676 NULL NULL NULL
|
|
162 |
SELECT t1.usr_id,t1.uniq_id,t1.increment,
|
|
163 |
t2.usr2_id,t2.c_amount,t2.max
|
|
164 |
FROM t2
|
|
165 |
RIGHT JOIN t1 ON t2.id = t1.uniq_id
|
|
166 |
WHERE t1.uniq_id = 4
|
|
167 |
ORDER BY t2.c_amount;
|
|
168 |
usr_id uniq_id increment usr2_id c_amount max
|
|
169 |
3 4 84676 NULL NULL NULL
|
|
170 |
INSERT INTO t2 VALUES (2,3,3000,6000,0,0,746584,837484,'yes');
|
|
171 |
INSERT INTO t2 VALUES (2,3,3000,6000,0,0,746584,837484,'yes');
|
|
172 |
ERROR 23000: Duplicate entry '2-3' for key 'PRIMARY'
|
|
173 |
INSERT INTO t2 VALUES (7,3,1000,2000,0,0,746294,937484,'yes');
|
|
174 |
SELECT t1.usr_id,t1.uniq_id,t1.increment,t2.usr2_id,t2.c_amount,t2.max FROM t1 LEFT JOIN t2 ON t2.id = t1.uniq_id WHERE t1.uniq_id = 4 ORDER BY t2.c_amount;
|
|
175 |
usr_id uniq_id increment usr2_id c_amount max
|
|
176 |
3 4 84676 NULL NULL NULL
|
|
177 |
SELECT t1.usr_id,t1.uniq_id,t1.increment,t2.usr2_id,t2.c_amount,t2.max FROM t1 LEFT JOIN t2 ON t2.id = t1.uniq_id WHERE t1.uniq_id = 4 GROUP BY t2.c_amount;
|
|
178 |
usr_id uniq_id increment usr2_id c_amount max
|
|
179 |
3 4 84676 NULL NULL NULL
|
|
180 |
SELECT t1.usr_id,t1.uniq_id,t1.increment,t2.usr2_id,t2.c_amount,t2.max FROM t1 LEFT JOIN t2 ON t2.id = t1.uniq_id WHERE t1.uniq_id = 4;
|
|
181 |
usr_id uniq_id increment usr2_id c_amount max
|
|
182 |
3 4 84676 NULL NULL NULL
|
|
183 |
drop table t1,t2;
|
|
184 |
CREATE TABLE t1 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
185 |
cod_asig int DEFAULT '0' NOT NULL,
|
|
1
by brian
clean slate |
186 |
desc_larga_cat varchar(80) DEFAULT '' NOT NULL,
|
187 |
desc_larga_cas varchar(80) DEFAULT '' NOT NULL,
|
|
188 |
desc_corta_cat varchar(40) DEFAULT '' NOT NULL,
|
|
189 |
desc_corta_cas varchar(40) DEFAULT '' NOT NULL,
|
|
190 |
cred_total double(3,1) DEFAULT '0.0' NOT NULL,
|
|
|
223
by Brian Aker
Cleanup int() work. |
191 |
pre_requisit int,
|
192 |
co_requisit int,
|
|
193 |
preco_requisit int,
|
|
|
1
by brian
clean slate |
194 |
PRIMARY KEY (cod_asig)
|
195 |
);
|
|
196 |
INSERT INTO t1 VALUES (10360,'asdfggfg','Introduccion a los Ordenadores I','asdfggfg','Introduccio Ordinadors I',6.0,NULL,NULL,NULL);
|
|
197 |
INSERT INTO t1 VALUES (10361,'Components i Circuits Electronics I','Componentes y Circuitos Electronicos I','Components i Circuits Electronics I','Comp. i Circ. Electr. I',6.0,NULL,NULL,NULL);
|
|
198 |
INSERT INTO t1 VALUES (10362,'Laboratori d`Ordinadors','Laboratorio de Ordenadores','Laboratori d`Ordinadors','Laboratori Ordinadors',4.5,NULL,NULL,NULL);
|
|
199 |
INSERT INTO t1 VALUES (10363,'Tecniques de Comunicacio Oral i Escrita','Tecnicas de Comunicacion Oral y Escrita','Tecniques de Comunicacio Oral i Escrita','Tec. Com. Oral i Escrita',4.5,NULL,NULL,NULL);
|
|
200 |
INSERT INTO t1 VALUES (11403,'Projecte Fi de Carrera','Proyecto Fin de Carrera','Projecte Fi de Carrera','PFC',9.0,NULL,NULL,NULL);
|
|
201 |
INSERT INTO t1 VALUES (11404,'+lgebra lineal','Algebra lineal','+lgebra lineal','+lgebra lineal',15.0,NULL,NULL,NULL);
|
|
202 |
INSERT INTO t1 VALUES (11405,'+lgebra lineal','Algebra lineal','+lgebra lineal','+lgebra lineal',18.0,NULL,NULL,NULL);
|
|
203 |
INSERT INTO t1 VALUES (11406,'Calcul Infinitesimal','Cßlculo Infinitesimal','Calcul Infinitesimal','Calcul Infinitesimal',15.0,NULL,NULL,NULL);
|
|
204 |
CREATE TABLE t2 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
205 |
idAssignatura int DEFAULT '0' NOT NULL,
|
206 |
Grup int DEFAULT '0' NOT NULL,
|
|
|
396
by Brian Aker
Cleanup tiny and small int. |
207 |
Places int DEFAULT '0' NOT NULL,
|
|
223
by Brian Aker
Cleanup int() work. |
208 |
PlacesOcupades int DEFAULT '0',
|
|
1
by brian
clean slate |
209 |
PRIMARY KEY (idAssignatura,Grup)
|
210 |
);
|
|
211 |
INSERT INTO t2 VALUES (10360,12,333,0);
|
|
212 |
INSERT INTO t2 VALUES (10361,30,2,0);
|
|
213 |
INSERT INTO t2 VALUES (10361,40,3,0);
|
|
214 |
INSERT INTO t2 VALUES (10360,45,10,0);
|
|
215 |
INSERT INTO t2 VALUES (10362,10,12,0);
|
|
216 |
INSERT INTO t2 VALUES (10360,55,2,0);
|
|
217 |
INSERT INTO t2 VALUES (10360,70,0,0);
|
|
218 |
INSERT INTO t2 VALUES (10360,565656,0,0);
|
|
219 |
INSERT INTO t2 VALUES (10360,32767,7,0);
|
|
220 |
INSERT INTO t2 VALUES (10360,33,8,0);
|
|
221 |
INSERT INTO t2 VALUES (10360,7887,85,0);
|
|
222 |
INSERT INTO t2 VALUES (11405,88,8,0);
|
|
223 |
INSERT INTO t2 VALUES (10360,0,55,0);
|
|
224 |
INSERT INTO t2 VALUES (10360,99,0,0);
|
|
225 |
INSERT INTO t2 VALUES (11411,30,10,0);
|
|
226 |
INSERT INTO t2 VALUES (11404,0,0,0);
|
|
227 |
INSERT INTO t2 VALUES (10362,11,111,0);
|
|
228 |
INSERT INTO t2 VALUES (10363,33,333,0);
|
|
229 |
INSERT INTO t2 VALUES (11412,55,0,0);
|
|
230 |
INSERT INTO t2 VALUES (50003,66,6,0);
|
|
231 |
INSERT INTO t2 VALUES (11403,5,0,0);
|
|
232 |
INSERT INTO t2 VALUES (11406,11,11,0);
|
|
233 |
INSERT INTO t2 VALUES (11410,11410,131,0);
|
|
234 |
INSERT INTO t2 VALUES (11416,11416,32767,0);
|
|
235 |
INSERT INTO t2 VALUES (11409,0,0,0);
|
|
236 |
CREATE TABLE t3 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
237 |
id int NOT NULL auto_increment,
|
|
1
by brian
clean slate |
238 |
dni_pasaporte char(16) DEFAULT '' NOT NULL,
|
|
223
by Brian Aker
Cleanup int() work. |
239 |
idPla int DEFAULT '0' NOT NULL,
|
240 |
cod_asig int DEFAULT '0' NOT NULL,
|
|
|
396
by Brian Aker
Cleanup tiny and small int. |
241 |
any int DEFAULT '0' NOT NULL,
|
242 |
quatrimestre int DEFAULT '0' NOT NULL,
|
|
|
1
by brian
clean slate |
243 |
estat char(1) DEFAULT 'M' NOT NULL,
|
244 |
PRIMARY KEY (id),
|
|
245 |
UNIQUE dni_pasaporte (dni_pasaporte,idPla),
|
|
246 |
UNIQUE dni_pasaporte_2 (dni_pasaporte,idPla,cod_asig,any,quatrimestre)
|
|
247 |
);
|
|
248 |
INSERT INTO t3 VALUES (1,'11111111',1,10362,98,1,'M');
|
|
249 |
CREATE TABLE t4 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
250 |
id int NOT NULL auto_increment,
|
251 |
papa int DEFAULT '0' NOT NULL,
|
|
252 |
fill int DEFAULT '0' NOT NULL,
|
|
253 |
idPla int DEFAULT '0' NOT NULL,
|
|
|
1
by brian
clean slate |
254 |
PRIMARY KEY (id),
|
255 |
KEY papa (idPla,papa),
|
|
256 |
UNIQUE papa_2 (idPla,papa,fill)
|
|
257 |
);
|
|
258 |
INSERT INTO t4 VALUES (1,-1,10360,1);
|
|
259 |
INSERT INTO t4 VALUES (2,-1,10361,1);
|
|
260 |
INSERT INTO t4 VALUES (3,-1,10362,1);
|
|
261 |
SELECT DISTINCT fill,desc_larga_cat,cred_total,Grup,Places,PlacesOcupades FROM t4 LEFT JOIN t3 ON t3.cod_asig=fill AND estat='S' AND dni_pasaporte='11111111' AND t3.idPla=1 , t2,t1 WHERE fill=t1.cod_asig AND Places>PlacesOcupades AND fill=idAssignatura AND t4.idPla=1 AND papa=-1;
|
|
262 |
fill desc_larga_cat cred_total Grup Places PlacesOcupades
|
|
263 |
10360 asdfggfg 6.0 0 55 0
|
|
264 |
10360 asdfggfg 6.0 12 333 0
|
|
265 |
10360 asdfggfg 6.0 33 8 0
|
|
266 |
10360 asdfggfg 6.0 45 10 0
|
|
267 |
10360 asdfggfg 6.0 55 2 0
|
|
268 |
10360 asdfggfg 6.0 7887 85 0
|
|
269 |
10360 asdfggfg 6.0 32767 7 0
|
|
270 |
10361 Components i Circuits Electronics I 6.0 30 2 0
|
|
271 |
10361 Components i Circuits Electronics I 6.0 40 3 0
|
|
272 |
10362 Laboratori d`Ordinadors 4.5 10 12 0
|
|
273 |
10362 Laboratori d`Ordinadors 4.5 11 111 0
|
|
274 |
SELECT DISTINCT fill,t3.idPla FROM t4 LEFT JOIN t3 ON t3.cod_asig=t4.fill AND t3.estat='S' AND t3.dni_pasaporte='1234' AND t3.idPla=1 ;
|
|
275 |
fill idPla
|
|
276 |
10360 NULL
|
|
277 |
10361 NULL
|
|
278 |
10362 NULL
|
|
279 |
INSERT INTO t3 VALUES (3,'1234',1,10360,98,1,'S');
|
|
280 |
SELECT DISTINCT fill,t3.idPla FROM t4 LEFT JOIN t3 ON t3.cod_asig=t4.fill AND t3.estat='S' AND t3.dni_pasaporte='1234' AND t3.idPla=1 ;
|
|
281 |
fill idPla
|
|
282 |
10360 1
|
|
283 |
10361 NULL
|
|
284 |
10362 NULL
|
|
285 |
drop table t1,t2,t3,test.t4;
|
|
286 |
CREATE TABLE t1 (
|
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
287 |
id int NOT NULL auto_increment,
|
|
1
by brian
clean slate |
288 |
name char(60) DEFAULT '' NOT NULL,
|
289 |
PRIMARY KEY (id)
|
|
290 |
);
|
|
291 |
INSERT INTO t1 VALUES (1,'Antonio Paz');
|
|
292 |
INSERT INTO t1 VALUES (2,'Lilliana Angelovska');
|
|
293 |
INSERT INTO t1 VALUES (3,'Thimble Smith');
|
|
294 |
CREATE TABLE t2 (
|
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
295 |
id int NOT NULL auto_increment,
|
296 |
owner int DEFAULT '0' NOT NULL,
|
|
|
1
by brian
clean slate |
297 |
name char(60),
|
298 |
PRIMARY KEY (id)
|
|
299 |
);
|
|
300 |
INSERT INTO t2 VALUES (1,1,'El Gato');
|
|
301 |
INSERT INTO t2 VALUES (2,1,'Perrito');
|
|
302 |
INSERT INTO t2 VALUES (3,3,'Happy');
|
|
303 |
select t1.name, t2.name, t2.id from t1 left join t2 on (t1.id = t2.owner);
|
|
304 |
name name id
|
|
305 |
Antonio Paz El Gato 1
|
|
306 |
Antonio Paz Perrito 2
|
|
307 |
Lilliana Angelovska NULL NULL
|
|
308 |
Thimble Smith Happy 3
|
|
309 |
select t1.name, t2.name, t2.id from t1 left join t2 on (t1.id = t2.owner) where t2.id is null;
|
|
310 |
name name id
|
|
311 |
Lilliana Angelovska NULL NULL
|
|
312 |
explain select t1.name, t2.name, t2.id from t1 left join t2 on (t1.id = t2.owner) where t2.id is null;
|
|
313 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
314 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
|
|
315 |
1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Not exists
|
|
316 |
explain select t1.name, t2.name, t2.id from t1 left join t2 on (t1.id = t2.owner) where t2.name is null;
|
|
317 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
318 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
|
|
319 |
1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where
|
|
320 |
select count(*) from t1 left join t2 on (t1.id = t2.owner);
|
|
321 |
count(*)
|
|
322 |
4
|
|
323 |
select t1.name, t2.name, t2.id from t2 right join t1 on (t1.id = t2.owner);
|
|
324 |
name name id
|
|
325 |
Antonio Paz El Gato 1
|
|
326 |
Antonio Paz Perrito 2
|
|
327 |
Lilliana Angelovska NULL NULL
|
|
328 |
Thimble Smith Happy 3
|
|
329 |
select t1.name, t2.name, t2.id from t2 right join t1 on (t1.id = t2.owner) where t2.id is null;
|
|
330 |
name name id
|
|
331 |
Lilliana Angelovska NULL NULL
|
|
332 |
explain select t1.name, t2.name, t2.id from t2 right join t1 on (t1.id = t2.owner) where t2.id is null;
|
|
333 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
334 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
|
|
335 |
1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Not exists
|
|
336 |
explain select t1.name, t2.name, t2.id from t2 right join t1 on (t1.id = t2.owner) where t2.name is null;
|
|
337 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
338 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
|
|
339 |
1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where
|
|
340 |
select count(*) from t2 right join t1 on (t1.id = t2.owner);
|
|
341 |
count(*)
|
|
342 |
4
|
|
343 |
select t1.name, t2.name, t2.id,t3.id from t2 right join t1 on (t1.id = t2.owner) left join t1 as t3 on t3.id=t2.owner;
|
|
344 |
name name id id
|
|
345 |
Antonio Paz El Gato 1 1
|
|
346 |
Antonio Paz Perrito 2 1
|
|
347 |
Lilliana Angelovska NULL NULL NULL
|
|
348 |
Thimble Smith Happy 3 3
|
|
349 |
select t1.name, t2.name, t2.id,t3.id from t1 right join t2 on (t1.id = t2.owner) right join t1 as t3 on t3.id=t2.owner;
|
|
350 |
name name id id
|
|
351 |
Antonio Paz El Gato 1 1
|
|
352 |
Antonio Paz Perrito 2 1
|
|
353 |
NULL NULL NULL 2
|
|
354 |
Thimble Smith Happy 3 3
|
|
355 |
select t1.name, t2.name, t2.id, t2.owner, t3.id from t1 left join t2 on (t1.id = t2.owner) right join t1 as t3 on t3.id=t2.owner;
|
|
356 |
name name id owner id
|
|
357 |
Antonio Paz El Gato 1 1 1
|
|
358 |
Antonio Paz Perrito 2 1 1
|
|
359 |
NULL NULL NULL NULL 2
|
|
360 |
Thimble Smith Happy 3 3 3
|
|
361 |
drop table t1,t2;
|
|
362 |
create table t1 (id int not null, str char(10), index(str));
|
|
363 |
insert into t1 values (1, null), (2, null), (3, "foo"), (4, "bar");
|
|
364 |
select * from t1 where str is not null order by id;
|
|
365 |
id str
|
|
366 |
3 foo
|
|
367 |
4 bar
|
|
368 |
select * from t1 where str is null;
|
|
369 |
id str
|
|
370 |
1 NULL
|
|
371 |
2 NULL
|
|
372 |
drop table t1;
|
|
373 |
CREATE TABLE t1 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
374 |
t1_id bigint NOT NULL auto_increment,
|
|
1
by brian
clean slate |
375 |
PRIMARY KEY (t1_id)
|
376 |
);
|
|
377 |
CREATE TABLE t2 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
378 |
t2_id bigint NOT NULL auto_increment,
|
|
1
by brian
clean slate |
379 |
PRIMARY KEY (t2_id)
|
380 |
);
|
|
381 |
CREATE TABLE t3 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
382 |
t3_id bigint NOT NULL auto_increment,
|
|
1
by brian
clean slate |
383 |
PRIMARY KEY (t3_id)
|
384 |
);
|
|
385 |
CREATE TABLE t4 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
386 |
seq_0_id bigint DEFAULT '0' NOT NULL,
|
387 |
seq_1_id bigint DEFAULT '0' NOT NULL,
|
|
|
1
by brian
clean slate |
388 |
KEY seq_0_id (seq_0_id),
|
389 |
KEY seq_1_id (seq_1_id)
|
|
390 |
);
|
|
391 |
CREATE TABLE t5 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
392 |
seq_0_id bigint DEFAULT '0' NOT NULL,
|
393 |
seq_1_id bigint DEFAULT '0' NOT NULL,
|
|
|
1
by brian
clean slate |
394 |
KEY seq_1_id (seq_1_id),
|
395 |
KEY seq_0_id (seq_0_id)
|
|
396 |
);
|
|
397 |
insert into t1 values (1);
|
|
398 |
insert into t2 values (1);
|
|
399 |
insert into t3 values (1);
|
|
400 |
insert into t4 values (1,1);
|
|
401 |
insert into t5 values (1,1);
|
|
402 |
explain select * from t3 left join t4 on t4.seq_1_id = t2.t2_id left join t1 on t1.t1_id = t4.seq_0_id left join t5 on t5.seq_0_id = t1.t1_id left join t2 on t2.t2_id = t5.seq_1_id where t3.t3_id = 23;
|
|
403 |
ERROR 42S22: Unknown column 't2.t2_id' in 'on clause'
|
|
404 |
drop table t1,t2,t3,t4,t5;
|
|
405 |
create table t1 (n int, m int, o int, key(n));
|
|
406 |
create table t2 (n int not null, m int, o int, primary key(n));
|
|
407 |
insert into t1 values (1, 2, 11), (1, 2, 7), (2, 2, 8), (1,2,9),(1,3,9);
|
|
408 |
insert into t2 values (1, 2, 3),(2, 2, 8), (4,3,9),(3,2,10);
|
|
409 |
select t1.*, t2.* from t1 left join t2 on t1.n = t2.n and
|
|
410 |
t1.m = t2.m where t1.n = 1;
|
|
411 |
n m o n m o
|
|
412 |
1 2 11 1 2 3
|
|
413 |
1 2 7 1 2 3
|
|
414 |
1 2 9 1 2 3
|
|
415 |
1 3 9 NULL NULL NULL
|
|
416 |
select t1.*, t2.* from t1 left join t2 on t1.n = t2.n and
|
|
417 |
t1.m = t2.m where t1.n = 1 order by t1.o;
|
|
418 |
n m o n m o
|
|
419 |
1 2 7 1 2 3
|
|
420 |
1 2 9 1 2 3
|
|
421 |
1 3 9 NULL NULL NULL
|
|
422 |
1 2 11 1 2 3
|
|
423 |
drop table t1,t2;
|
|
424 |
CREATE TABLE t1 (id1 INT NOT NULL PRIMARY KEY, dat1 CHAR(1), id2 INT);
|
|
425 |
INSERT INTO t1 VALUES (1,'a',1);
|
|
426 |
INSERT INTO t1 VALUES (2,'b',1);
|
|
427 |
INSERT INTO t1 VALUES (3,'c',2);
|
|
428 |
CREATE TABLE t2 (id2 INT NOT NULL PRIMARY KEY, dat2 CHAR(1));
|
|
429 |
INSERT INTO t2 VALUES (1,'x');
|
|
430 |
INSERT INTO t2 VALUES (2,'y');
|
|
431 |
INSERT INTO t2 VALUES (3,'z');
|
|
432 |
SELECT t2.id2 FROM t2 LEFT OUTER JOIN t1 ON t1.id2 = t2.id2 WHERE id1 IS NULL;
|
|
433 |
id2
|
|
434 |
3
|
|
435 |
SELECT t2.id2 FROM t2 NATURAL LEFT OUTER JOIN t1 WHERE id1 IS NULL;
|
|
436 |
id2
|
|
437 |
3
|
|
438 |
drop table t1,t2;
|
|
439 |
create table t1 ( color varchar(20), name varchar(20) );
|
|
440 |
insert into t1 values ( 'red', 'apple' );
|
|
441 |
insert into t1 values ( 'yellow', 'banana' );
|
|
442 |
insert into t1 values ( 'green', 'lime' );
|
|
443 |
insert into t1 values ( 'black', 'grape' );
|
|
444 |
insert into t1 values ( 'blue', 'blueberry' );
|
|
445 |
create table t2 ( count int, color varchar(20) );
|
|
446 |
insert into t2 values (10, 'green');
|
|
447 |
insert into t2 values (5, 'black');
|
|
448 |
insert into t2 values (15, 'white');
|
|
449 |
insert into t2 values (7, 'green');
|
|
450 |
select * from t1;
|
|
451 |
color name
|
|
452 |
red apple
|
|
453 |
yellow banana
|
|
454 |
green lime
|
|
455 |
black grape
|
|
456 |
blue blueberry
|
|
457 |
select * from t2;
|
|
458 |
count color
|
|
459 |
10 green
|
|
460 |
5 black
|
|
461 |
15 white
|
|
462 |
7 green
|
|
463 |
select * from t2 natural join t1;
|
|
464 |
color count name
|
|
465 |
green 10 lime
|
|
466 |
green 7 lime
|
|
467 |
black 5 grape
|
|
468 |
select t2.count, t1.name from t2 natural join t1;
|
|
469 |
count name
|
|
470 |
10 lime
|
|
471 |
7 lime
|
|
472 |
5 grape
|
|
473 |
select t2.count, t1.name from t2 inner join t1 using (color);
|
|
474 |
count name
|
|
475 |
10 lime
|
|
476 |
7 lime
|
|
477 |
5 grape
|
|
478 |
drop table t1;
|
|
479 |
drop table t2;
|
|
480 |
CREATE TABLE t1 (
|
|
481 |
pcode varchar(8) DEFAULT '' NOT NULL
|
|
482 |
);
|
|
483 |
INSERT INTO t1 VALUES ('kvw2000'),('kvw2001'),('kvw3000'),('kvw3001'),('kvw3002'),('kvw3500'),('kvw3501'),('kvw3502'),('kvw3800'),('kvw3801'),('kvw3802'),('kvw3900'),('kvw3901'),('kvw3902'),('kvw4000'),('kvw4001'),('kvw4002'),('kvw4200'),('kvw4500'),('kvw5000'),('kvw5001'),('kvw5500'),('kvw5510'),('kvw5600'),('kvw5601'),('kvw6000'),('klw1000'),('klw1020'),('klw1500'),('klw2000'),('klw2001'),('klw2002'),('kld2000'),('klw2500'),('kmw1000'),('kmw1500'),('kmw2000'),('kmw2001'),('kmw2100'),('kmw3000'),('kmw3200');
|
|
484 |
CREATE TABLE t2 (
|
|
485 |
pcode varchar(8) DEFAULT '' NOT NULL,
|
|
486 |
KEY pcode (pcode)
|
|
487 |
);
|
|
488 |
INSERT INTO t2 VALUES ('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw6000'),('kvw6000'),('kld2000');
|
|
489 |
SELECT t1.pcode, IF(ISNULL(t2.pcode), 0, COUNT(*)) AS count FROM t1
|
|
490 |
LEFT JOIN t2 ON t1.pcode = t2.pcode GROUP BY t1.pcode;
|
|
491 |
pcode count
|
|
492 |
kld2000 1
|
|
493 |
klw1000 0
|
|
494 |
klw1020 0
|
|
495 |
klw1500 0
|
|
496 |
klw2000 0
|
|
497 |
klw2001 0
|
|
498 |
klw2002 0
|
|
499 |
klw2500 0
|
|
500 |
kmw1000 0
|
|
501 |
kmw1500 0
|
|
502 |
kmw2000 0
|
|
503 |
kmw2001 0
|
|
504 |
kmw2100 0
|
|
505 |
kmw3000 0
|
|
506 |
kmw3200 0
|
|
507 |
kvw2000 26
|
|
508 |
kvw2001 0
|
|
509 |
kvw3000 36
|
|
510 |
kvw3001 0
|
|
511 |
kvw3002 0
|
|
512 |
kvw3500 26
|
|
513 |
kvw3501 0
|
|
514 |
kvw3502 0
|
|
515 |
kvw3800 0
|
|
516 |
kvw3801 0
|
|
517 |
kvw3802 0
|
|
518 |
kvw3900 0
|
|
519 |
kvw3901 0
|
|
520 |
kvw3902 0
|
|
521 |
kvw4000 0
|
|
522 |
kvw4001 0
|
|
523 |
kvw4002 0
|
|
524 |
kvw4200 0
|
|
525 |
kvw4500 0
|
|
526 |
kvw5000 0
|
|
527 |
kvw5001 0
|
|
528 |
kvw5500 0
|
|
529 |
kvw5510 0
|
|
530 |
kvw5600 0
|
|
531 |
kvw5601 0
|
|
532 |
kvw6000 2
|
|
533 |
SELECT SQL_BIG_RESULT t1.pcode, IF(ISNULL(t2.pcode), 0, COUNT(*)) AS count FROM t1 LEFT JOIN t2 ON t1.pcode = t2.pcode GROUP BY t1.pcode;
|
|
534 |
pcode count
|
|
535 |
kld2000 1
|
|
536 |
klw1000 0
|
|
537 |
klw1020 0
|
|
538 |
klw1500 0
|
|
539 |
klw2000 0
|
|
540 |
klw2001 0
|
|
541 |
klw2002 0
|
|
542 |
klw2500 0
|
|
543 |
kmw1000 0
|
|
544 |
kmw1500 0
|
|
545 |
kmw2000 0
|
|
546 |
kmw2001 0
|
|
547 |
kmw2100 0
|
|
548 |
kmw3000 0
|
|
549 |
kmw3200 0
|
|
550 |
kvw2000 26
|
|
551 |
kvw2001 0
|
|
552 |
kvw3000 36
|
|
553 |
kvw3001 0
|
|
554 |
kvw3002 0
|
|
555 |
kvw3500 26
|
|
556 |
kvw3501 0
|
|
557 |
kvw3502 0
|
|
558 |
kvw3800 0
|
|
559 |
kvw3801 0
|
|
560 |
kvw3802 0
|
|
561 |
kvw3900 0
|
|
562 |
kvw3901 0
|
|
563 |
kvw3902 0
|
|
564 |
kvw4000 0
|
|
565 |
kvw4001 0
|
|
566 |
kvw4002 0
|
|
567 |
kvw4200 0
|
|
568 |
kvw4500 0
|
|
569 |
kvw5000 0
|
|
570 |
kvw5001 0
|
|
571 |
kvw5500 0
|
|
572 |
kvw5510 0
|
|
573 |
kvw5600 0
|
|
574 |
kvw5601 0
|
|
575 |
kvw6000 2
|
|
576 |
drop table t1,t2;
|
|
577 |
CREATE TABLE t1 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
578 |
id int,
|
579 |
pid int,
|
|
|
396
by Brian Aker
Cleanup tiny and small int. |
580 |
rep_del int,
|
|
1
by brian
clean slate |
581 |
KEY id (id),
|
582 |
KEY pid (pid)
|
|
583 |
);
|
|
584 |
INSERT INTO t1 VALUES (1,NULL,NULL);
|
|
585 |
INSERT INTO t1 VALUES (2,1,NULL);
|
|
586 |
select * from t1 LEFT JOIN t1 t2 ON (t1.id=t2.pid) AND t2.rep_del IS NULL;
|
|
587 |
id pid rep_del id pid rep_del
|
|
588 |
1 NULL NULL 2 1 NULL
|
|
589 |
2 1 NULL NULL NULL NULL
|
|
590 |
create index rep_del ON t1(rep_del);
|
|
591 |
select * from t1 LEFT JOIN t1 t2 ON (t1.id=t2.pid) AND t2.rep_del IS NULL;
|
|
592 |
id pid rep_del id pid rep_del
|
|
593 |
1 NULL NULL 2 1 NULL
|
|
594 |
2 1 NULL NULL NULL NULL
|
|
595 |
drop table t1;
|
|
596 |
CREATE TABLE t1 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
597 |
id int DEFAULT '0' NOT NULL,
|
|
1
by brian
clean slate |
598 |
name tinytext DEFAULT '' NOT NULL,
|
599 |
UNIQUE id (id)
|
|
600 |
);
|
|
601 |
INSERT INTO t1 VALUES (1,'yes'),(2,'no');
|
|
602 |
CREATE TABLE t2 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
603 |
id int DEFAULT '0' NOT NULL,
|
604 |
idx int DEFAULT '0' NOT NULL,
|
|
|
1
by brian
clean slate |
605 |
UNIQUE id (id,idx)
|
606 |
);
|
|
607 |
INSERT INTO t2 VALUES (1,1);
|
|
608 |
explain SELECT * from t1 left join t2 on t1.id=t2.id where t2.id IS NULL;
|
|
609 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
610 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
|
|
611 |
1 SIMPLE t2 ref id id 4 test.t1.id 1 Using where; Using index; Not exists
|
|
612 |
SELECT * from t1 left join t2 on t1.id=t2.id where t2.id IS NULL;
|
|
613 |
id name id idx
|
|
614 |
2 no NULL NULL
|
|
615 |
drop table t1,t2;
|
|
|
67
by Brian Aker
First pass for removing mediumint (3 byte INT type). |
616 |
create table t1 (bug_id bigint, reporter bigint);
|
617 |
create table t2 (bug_id bigint, who bigint, index(who));
|
|
|
1
by brian
clean slate |
618 |
insert into t2 values (1,1),(1,2);
|
619 |
insert into t1 values (1,1),(2,1);
|
|
620 |
SELECT * FROM t1 LEFT JOIN t2 ON (t1.bug_id = t2.bug_id AND t2.who = 2) WHERE (t1.reporter = 2 OR t2.who = 2);
|
|
621 |
bug_id reporter bug_id who
|
|
622 |
1 1 1 2
|
|
623 |
drop table t1,t2;
|
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
624 |
create table t1 (fooID int auto_increment, primary key (fooID));
|
625 |
create table t2 (fooID int not null, barID int not null, primary key (fooID,barID));
|
|
|
1
by brian
clean slate |
626 |
insert into t1 (fooID) values (10),(20),(30);
|
627 |
insert into t2 values (10,1),(20,2),(30,3);
|
|
628 |
explain select * from t2 left join t1 on t1.fooID = t2.fooID and t1.fooID = 30;
|
|
629 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
|
396
by Brian Aker
Cleanup tiny and small int. |
630 |
1 SIMPLE t2 index NULL PRIMARY 8 NULL 3 Using index
|
631 |
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 Using index
|
|
|
1
by brian
clean slate |
632 |
select * from t2 left join t1 on t1.fooID = t2.fooID and t1.fooID = 30;
|
633 |
fooID barID fooID
|
|
634 |
10 1 NULL
|
|
635 |
20 2 NULL
|
|
636 |
30 3 30
|
|
637 |
select * from t2 left join t1 ignore index(primary) on t1.fooID = t2.fooID and t1.fooID = 30;
|
|
638 |
fooID barID fooID
|
|
639 |
10 1 NULL
|
|
640 |
20 2 NULL
|
|
641 |
30 3 30
|
|
642 |
drop table t1,t2;
|
|
643 |
create table t1 (i int);
|
|
644 |
create table t2 (i int);
|
|
645 |
create table t3 (i int);
|
|
646 |
insert into t1 values(1),(2);
|
|
647 |
insert into t2 values(2),(3);
|
|
648 |
insert into t3 values(2),(4);
|
|
649 |
select * from t1 natural left join t2 natural left join t3;
|
|
650 |
i
|
|
651 |
1
|
|
652 |
2
|
|
653 |
select * from t1 natural left join t2 where (t2.i is not null)=0;
|
|
654 |
i
|
|
655 |
1
|
|
656 |
select * from t1 natural left join t2 where (t2.i is not null) is not null;
|
|
657 |
i
|
|
658 |
1
|
|
659 |
2
|
|
660 |
select * from t1 natural left join t2 where (i is not null)=0;
|
|
661 |
i
|
|
662 |
select * from t1 natural left join t2 where (i is not null) is not null;
|
|
663 |
i
|
|
664 |
1
|
|
665 |
2
|
|
666 |
drop table t1,t2,t3;
|
|
667 |
create table t1 (f1 integer,f2 integer,f3 integer);
|
|
668 |
create table t2 (f2 integer,f4 integer);
|
|
669 |
create table t3 (f3 integer,f5 integer);
|
|
670 |
select * from t1
|
|
671 |
left outer join t2 using (f2)
|
|
672 |
left outer join t3 using (f3);
|
|
673 |
f3 f2 f1 f4 f5
|
|
674 |
drop table t1,t2,t3;
|
|
675 |
create table t1 (a1 int, a2 int);
|
|
676 |
create table t2 (b1 int not null, b2 int);
|
|
677 |
create table t3 (c1 int, c2 int);
|
|
678 |
insert into t1 values (1,2), (2,2), (3,2);
|
|
679 |
insert into t2 values (1,3), (2,3);
|
|
680 |
insert into t3 values (2,4), (3,4);
|
|
681 |
select * from t1 left join t2 on b1 = a1 left join t3 on c1 = a1 and b1 is null;
|
|
682 |
a1 a2 b1 b2 c1 c2
|
|
683 |
1 2 1 3 NULL NULL
|
|
684 |
2 2 2 3 NULL NULL
|
|
685 |
3 2 NULL NULL 3 4
|
|
686 |
explain select * from t1 left join t2 on b1 = a1 left join t3 on c1 = a1 and b1 is null;
|
|
687 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
688 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
|
|
689 |
1 SIMPLE t2 ALL NULL NULL NULL NULL 2
|
|
690 |
1 SIMPLE t3 ALL NULL NULL NULL NULL 2
|
|
691 |
drop table t1, t2, t3;
|
|
692 |
create table t1 (
|
|
|
223
by Brian Aker
Cleanup int() work. |
693 |
a int,
|
|
1
by brian
clean slate |
694 |
b char(10),
|
695 |
key (a)
|
|
696 |
);
|
|
697 |
insert into t1 (a) values (1),(2),(3),(4);
|
|
698 |
create table t2 (a int);
|
|
699 |
select * from t1 left join t2 on t1.a=t2.a where not (t2.a <=> t1.a);
|
|
700 |
a b a
|
|
701 |
1 NULL NULL
|
|
702 |
2 NULL NULL
|
|
703 |
3 NULL NULL
|
|
704 |
4 NULL NULL
|
|
705 |
select * from t1 left join t2 on t1.a=t2.a having not (t2.a <=> t1.a);
|
|
706 |
a b a
|
|
707 |
1 NULL NULL
|
|
708 |
2 NULL NULL
|
|
709 |
3 NULL NULL
|
|
710 |
4 NULL NULL
|
|
711 |
drop table t1,t2;
|
|
712 |
create table t1 (
|
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
713 |
match_id int not null auto_increment,
|
714 |
home int default '0',
|
|
|
1
by brian
clean slate |
715 |
unique key match_id (match_id),
|
716 |
key match_id_2 (match_id)
|
|
717 |
);
|
|
718 |
insert into t1 values("1", "2");
|
|
719 |
create table t2 (
|
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
720 |
player_id int default '0',
|
721 |
match_1_h int default '0',
|
|
|
1
by brian
clean slate |
722 |
key player_id (player_id)
|
723 |
);
|
|
724 |
insert into t2 values("1", "5");
|
|
725 |
insert into t2 values("2", "9");
|
|
726 |
insert into t2 values("3", "3");
|
|
727 |
insert into t2 values("4", "7");
|
|
728 |
insert into t2 values("5", "6");
|
|
729 |
insert into t2 values("6", "8");
|
|
730 |
insert into t2 values("7", "4");
|
|
731 |
insert into t2 values("8", "12");
|
|
732 |
insert into t2 values("9", "11");
|
|
733 |
insert into t2 values("10", "10");
|
|
734 |
explain select s.*, '*', m.*, (s.match_1_h - m.home) UUX from
|
|
735 |
(t2 s left join t1 m on m.match_id = 1)
|
|
736 |
order by m.match_id desc;
|
|
737 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
738 |
1 SIMPLE s ALL NULL NULL NULL NULL 10 Using temporary; Using filesort
|
|
|
396
by Brian Aker
Cleanup tiny and small int. |
739 |
1 SIMPLE m const match_id,match_id_2 match_id 4 const 1
|
|
1
by brian
clean slate |
740 |
explain select s.*, '*', m.*, (s.match_1_h - m.home) UUX from
|
741 |
(t2 s left join t1 m on m.match_id = 1)
|
|
742 |
order by UUX desc;
|
|
743 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
744 |
1 SIMPLE s ALL NULL NULL NULL NULL 10 Using temporary; Using filesort
|
|
|
396
by Brian Aker
Cleanup tiny and small int. |
745 |
1 SIMPLE m const match_id,match_id_2 match_id 4 const 1
|
|
1
by brian
clean slate |
746 |
select s.*, '*', m.*, (s.match_1_h - m.home) UUX from
|
747 |
(t2 s left join t1 m on m.match_id = 1)
|
|
748 |
order by UUX desc;
|
|
749 |
player_id match_1_h * match_id home UUX
|
|
750 |
8 12 * 1 2 10
|
|
751 |
9 11 * 1 2 9
|
|
752 |
10 10 * 1 2 8
|
|
753 |
2 9 * 1 2 7
|
|
754 |
6 8 * 1 2 6
|
|
755 |
4 7 * 1 2 5
|
|
756 |
5 6 * 1 2 4
|
|
757 |
1 5 * 1 2 3
|
|
758 |
7 4 * 1 2 2
|
|
759 |
3 3 * 1 2 1
|
|
760 |
explain select s.*, '*', m.*, (s.match_1_h - m.home) UUX from
|
|
761 |
t2 s straight_join t1 m where m.match_id = 1
|
|
762 |
order by UUX desc;
|
|
763 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
764 |
1 SIMPLE s ALL NULL NULL NULL NULL 10 Using temporary; Using filesort
|
|
|
396
by Brian Aker
Cleanup tiny and small int. |
765 |
1 SIMPLE m const match_id,match_id_2 match_id 4 const 1
|
|
1
by brian
clean slate |
766 |
select s.*, '*', m.*, (s.match_1_h - m.home) UUX from
|
767 |
t2 s straight_join t1 m where m.match_id = 1
|
|
768 |
order by UUX desc;
|
|
769 |
player_id match_1_h * match_id home UUX
|
|
770 |
8 12 * 1 2 10
|
|
771 |
9 11 * 1 2 9
|
|
772 |
10 10 * 1 2 8
|
|
773 |
2 9 * 1 2 7
|
|
774 |
6 8 * 1 2 6
|
|
775 |
4 7 * 1 2 5
|
|
776 |
5 6 * 1 2 4
|
|
777 |
1 5 * 1 2 3
|
|
778 |
7 4 * 1 2 2
|
|
779 |
3 3 * 1 2 1
|
|
780 |
drop table t1, t2;
|
|
781 |
create table t1 (a int, b int, unique index idx (a, b));
|
|
782 |
create table t2 (a int, b int, c int, unique index idx (a, b));
|
|
783 |
insert into t1 values (1, 10), (1,11), (2,10), (2,11);
|
|
784 |
insert into t2 values (1,10,3);
|
|
785 |
select t1.a, t1.b, t2.c from t1 left join t2
|
|
786 |
on t1.a=t2.a and t1.b=t2.b and t2.c=3
|
|
787 |
where t1.a=1 and t2.c is null;
|
|
788 |
a b c
|
|
789 |
1 11 NULL
|
|
790 |
drop table t1, t2;
|
|
|
1063.9.10
by Stewart Smith
fix join_outer for MyISAM as temp only: 1x open table twice, 1x CREATE TEMP |
791 |
CREATE TEMPORARY TABLE t1 (
|
|
223
by Brian Aker
Cleanup int() work. |
792 |
ts_id bigint default NULL,
|
|
396
by Brian Aker
Cleanup tiny and small int. |
793 |
inst_id int default NULL,
|
|
1
by brian
clean slate |
794 |
flag_name varchar(64) default NULL,
|
795 |
flag_value text,
|
|
796 |
UNIQUE KEY ts_id (ts_id,inst_id,flag_name)
|
|
|
377.1.4
by Brian Aker
Big, fat, UTF-8 patch. This fixes some of the oddities around only one |
797 |
) ENGINE=MyISAM;
|
|
1063.9.10
by Stewart Smith
fix join_outer for MyISAM as temp only: 1x open table twice, 1x CREATE TEMP |
798 |
CREATE TEMPORARY TABLE t2 (
|
|
223
by Brian Aker
Cleanup int() work. |
799 |
ts_id bigint default NULL,
|
|
396
by Brian Aker
Cleanup tiny and small int. |
800 |
inst_id int default NULL,
|
|
1
by brian
clean slate |
801 |
flag_name varchar(64) default NULL,
|
802 |
flag_value text,
|
|
803 |
UNIQUE KEY ts_id (ts_id,inst_id,flag_name)
|
|
|
377.1.4
by Brian Aker
Big, fat, UTF-8 patch. This fixes some of the oddities around only one |
804 |
) ENGINE=MyISAM;
|
|
1
by brian
clean slate |
805 |
INSERT INTO t1 VALUES
|
806 |
(111056548820001, 0, 'flag1', NULL),
|
|
807 |
(111056548820001, 0, 'flag2', NULL),
|
|
808 |
(2, 0, 'other_flag', NULL);
|
|
809 |
INSERT INTO t2 VALUES
|
|
810 |
(111056548820001, 3, 'flag1', 'sss');
|
|
811 |
SELECT t1.flag_name,t2.flag_value
|
|
812 |
FROM t1 LEFT JOIN t2
|
|
813 |
ON (t1.ts_id = t2.ts_id AND t1.flag_name = t2.flag_name AND
|
|
814 |
t2.inst_id = 3)
|
|
815 |
WHERE t1.inst_id = 0 AND t1.ts_id=111056548820001 AND
|
|
816 |
t2.flag_value IS NULL;
|
|
817 |
flag_name flag_value
|
|
818 |
flag2 NULL
|
|
819 |
DROP TABLE t1,t2;
|
|
820 |
CREATE TABLE t1 (
|
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
821 |
id int NOT NULL auto_increment,
|
822 |
text_id int default NULL,
|
|
|
1
by brian
clean slate |
823 |
PRIMARY KEY (id)
|
824 |
);
|
|
825 |
INSERT INTO t1 VALUES("1", "0");
|
|
826 |
INSERT INTO t1 VALUES("2", "10");
|
|
827 |
CREATE TABLE t2 (
|
|
828 |
text_id char(3) NOT NULL default '',
|
|
829 |
language_id char(3) NOT NULL default '',
|
|
830 |
text_data text,
|
|
831 |
PRIMARY KEY (text_id,language_id)
|
|
832 |
);
|
|
833 |
INSERT INTO t2 VALUES("0", "EN", "0-EN");
|
|
834 |
INSERT INTO t2 VALUES("0", "SV", "0-SV");
|
|
835 |
INSERT INTO t2 VALUES("10", "EN", "10-EN");
|
|
836 |
INSERT INTO t2 VALUES("10", "SV", "10-SV");
|
|
837 |
SELECT t1.id, t1.text_id, t2.text_data
|
|
838 |
FROM t1 LEFT JOIN t2
|
|
839 |
ON t1.text_id = t2.text_id
|
|
840 |
AND t2.language_id = 'SV'
|
|
841 |
WHERE (t1.id LIKE '%' OR t2.text_data LIKE '%');
|
|
842 |
id text_id text_data
|
|
843 |
1 0 0-SV
|
|
844 |
2 10 10-SV
|
|
845 |
DROP TABLE t1, t2;
|
|
846 |
CREATE TABLE t0 (a0 int PRIMARY KEY);
|
|
847 |
CREATE TABLE t1 (a1 int PRIMARY KEY);
|
|
848 |
CREATE TABLE t2 (a2 int);
|
|
849 |
CREATE TABLE t3 (a3 int);
|
|
850 |
INSERT INTO t0 VALUES (1);
|
|
851 |
INSERT INTO t1 VALUES (1);
|
|
852 |
INSERT INTO t2 VALUES (1), (2);
|
|
853 |
INSERT INTO t3 VALUES (1), (2);
|
|
854 |
SELECT * FROM t1 LEFT JOIN t2 ON a1=0;
|
|
855 |
a1 a2
|
|
856 |
1 NULL
|
|
857 |
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON a1=0;
|
|
858 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
|
201
by Brian Aker
Convert default engine to Innodb |
859 |
1 SIMPLE t1 index NULL PRIMARY 4 NULL 1 Using index
|
|
1
by brian
clean slate |
860 |
1 SIMPLE t2 ALL NULL NULL NULL NULL 2
|
861 |
SELECT * FROM t1 LEFT JOIN (t2,t3) ON a1=0;
|
|
862 |
a1 a2 a3
|
|
863 |
1 NULL NULL
|
|
864 |
EXPLAIN SELECT * FROM t1 LEFT JOIN (t2,t3) ON a1=0;
|
|
865 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
|
201
by Brian Aker
Convert default engine to Innodb |
866 |
1 SIMPLE t1 index NULL PRIMARY 4 NULL 1 Using index
|
|
1
by brian
clean slate |
867 |
1 SIMPLE t2 ALL NULL NULL NULL NULL 2
|
868 |
1 SIMPLE t3 ALL NULL NULL NULL NULL 2
|
|
869 |
SELECT * FROM t0, t1 LEFT JOIN (t2,t3) ON a1=0 WHERE a0=a1;
|
|
870 |
a0 a1 a2 a3
|
|
871 |
1 1 NULL NULL
|
|
872 |
EXPLAIN SELECT * FROM t0, t1 LEFT JOIN (t2,t3) ON a1=0 WHERE a0=a1;
|
|
873 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
|
201
by Brian Aker
Convert default engine to Innodb |
874 |
1 SIMPLE t0 index PRIMARY PRIMARY 4 NULL 1 Using index
|
875 |
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t0.a0 1 Using index
|
|
|
1
by brian
clean slate |
876 |
1 SIMPLE t2 ALL NULL NULL NULL NULL 2
|
877 |
1 SIMPLE t3 ALL NULL NULL NULL NULL 2
|
|
878 |
INSERT INTO t0 VALUES (0);
|
|
879 |
INSERT INTO t1 VALUES (0);
|
|
880 |
SELECT * FROM t0, t1 LEFT JOIN (t2,t3) ON a1=5 WHERE a0=a1 AND a0=1;
|
|
881 |
a0 a1 a2 a3
|
|
882 |
1 1 NULL NULL
|
|
883 |
EXPLAIN SELECT * FROM t0, t1 LEFT JOIN (t2,t3) ON a1=5 WHERE a0=a1 AND a0=1;
|
|
884 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
885 |
1 SIMPLE t0 const PRIMARY PRIMARY 4 const 1 Using index
|
|
886 |
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 Using index
|
|
887 |
1 SIMPLE t2 ALL NULL NULL NULL NULL 2
|
|
888 |
1 SIMPLE t3 ALL NULL NULL NULL NULL 2
|
|
889 |
drop table t1,t2;
|
|
890 |
create table t1 (a int, b int);
|
|
891 |
insert into t1 values (1,1),(2,2),(3,3);
|
|
892 |
create table t2 (a int, b int);
|
|
893 |
insert into t2 values (1,1), (2,2);
|
|
894 |
select * from t2 right join t1 on t2.a=t1.a;
|
|
895 |
a b a b
|
|
896 |
1 1 1 1
|
|
897 |
2 2 2 2
|
|
898 |
NULL NULL 3 3
|
|
899 |
select straight_join * from t2 right join t1 on t2.a=t1.a;
|
|
900 |
a b a b
|
|
901 |
1 1 1 1
|
|
902 |
2 2 2 2
|
|
903 |
NULL NULL 3 3
|
|
904 |
DROP TABLE t0,t1,t2,t3;
|
|
905 |
CREATE TABLE t1 (a int PRIMARY KEY, b int);
|
|
906 |
CREATE TABLE t2 (a int PRIMARY KEY, b int);
|
|
907 |
INSERT INTO t1 VALUES (1,1), (2,1), (3,1), (4,2);
|
|
908 |
INSERT INTO t2 VALUES (1,2), (2,2);
|
|
909 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a;
|
|
910 |
a b a b
|
|
911 |
1 1 1 2
|
|
912 |
2 1 2 2
|
|
913 |
3 1 NULL NULL
|
|
914 |
4 2 NULL NULL
|
|
915 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a WHERE t1.b=1;
|
|
916 |
a b a b
|
|
917 |
1 1 1 2
|
|
918 |
2 1 2 2
|
|
919 |
3 1 NULL NULL
|
|
920 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a
|
|
921 |
WHERE t1.b=1 XOR (NOT ISNULL(t2.a) AND t2.b=1);
|
|
922 |
a b a b
|
|
923 |
1 1 1 2
|
|
924 |
2 1 2 2
|
|
925 |
3 1 NULL NULL
|
|
926 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a WHERE not(0+(t1.a=30 and t2.b=1));
|
|
927 |
a b a b
|
|
928 |
1 1 1 2
|
|
929 |
2 1 2 2
|
|
930 |
3 1 NULL NULL
|
|
931 |
4 2 NULL NULL
|
|
932 |
DROP TABLE t1,t2;
|
|
933 |
set group_concat_max_len=5;
|
|
934 |
create table t1 (a int, b varchar(20));
|
|
935 |
create table t2 (a int, c varchar(20));
|
|
936 |
insert into t1 values (1,"aaaaaaaaaa"),(2,"bbbbbbbbbb");
|
|
937 |
insert into t2 values (1,"cccccccccc"),(2,"dddddddddd");
|
|
938 |
select group_concat(t1.b,t2.c) from t1 left join t2 using(a) group by t1.a;
|
|
939 |
group_concat(t1.b,t2.c)
|
|
940 |
aaaaa
|
|
941 |
bbbbb
|
|
942 |
Warnings:
|
|
943 |
Warning 1260 2 line(s) were cut by GROUP_CONCAT()
|
|
944 |
select group_concat(t1.b,t2.c) from t1 inner join t2 using(a) group by t1.a;
|
|
945 |
group_concat(t1.b,t2.c)
|
|
946 |
aaaaa
|
|
947 |
bbbbb
|
|
948 |
Warnings:
|
|
949 |
Warning 1260 2 line(s) were cut by GROUP_CONCAT()
|
|
950 |
select group_concat(t1.b,t2.c) from t1 left join t2 using(a) group by a;
|
|
951 |
group_concat(t1.b,t2.c)
|
|
952 |
aaaaa
|
|
953 |
bbbbb
|
|
954 |
Warnings:
|
|
955 |
Warning 1260 2 line(s) were cut by GROUP_CONCAT()
|
|
956 |
select group_concat(t1.b,t2.c) from t1 inner join t2 using(a) group by a;
|
|
957 |
group_concat(t1.b,t2.c)
|
|
958 |
aaaaa
|
|
959 |
bbbbb
|
|
960 |
Warnings:
|
|
961 |
Warning 1260 2 line(s) were cut by GROUP_CONCAT()
|
|
962 |
drop table t1, t2;
|
|
963 |
set group_concat_max_len=default;
|
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
964 |
create table t1 (gid int not null, x int not null, y int not null, art int not null, primary key (gid,x,y));
|
|
1
by brian
clean slate |
965 |
insert t1 values (1, -5, -8, 2), (1, 2, 2, 1), (1, 1, 1, 1);
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
966 |
create table t2 (gid int not null, x int not null, y int not null, id int not null, primary key (gid,id,x,y), key id (id));
|
|
1
by brian
clean slate |
967 |
insert t2 values (1, -5, -8, 1), (1, 1, 1, 1), (1, 2, 2, 1);
|
|
413.2.2
by Brian Aker
Removed UNSIGNED from parser. |
968 |
create table t3 ( set_id int not null, id int not null, name char(12) not null, primary key (id,set_id));
|
|
1
by brian
clean slate |
969 |
insert t3 values (0, 1, 'a'), (1, 1, 'b'), (0, 2, 'c'), (1, 2, 'd'), (1, 3, 'e'), (1, 4, 'f'), (1, 5, 'g'), (1, 6, 'h');
|
970 |
explain select name from t1 left join t2 on t1.x = t2.x and t1.y = t2.y
|
|
971 |
left join t3 on t1.art = t3.id where t2.id =1 and t2.x = -5 and t2.y =-8
|
|
972 |
and t1.gid =1 and t2.gid =1 and t3.set_id =1;
|
|
973 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
|
396
by Brian Aker
Cleanup tiny and small int. |
974 |
1 SIMPLE t1 const PRIMARY PRIMARY 12 const,const,const 1
|
975 |
1 SIMPLE t2 const PRIMARY,id PRIMARY 16 const,const,const,const 1 Using index
|
|
976 |
1 SIMPLE t3 const PRIMARY PRIMARY 8 const,const 1
|
|
|
1
by brian
clean slate |
977 |
drop tables t1,t2,t3;
|
978 |
CREATE TABLE t1 (c11 int);
|
|
979 |
CREATE TABLE t2 (c21 int);
|
|
980 |
INSERT INTO t1 VALUES (30), (40), (50);
|
|
981 |
INSERT INTO t2 VALUES (300), (400), (500);
|
|
982 |
SELECT * FROM t1 LEFT JOIN t2 ON (c11=c21 AND c21=30) WHERE c11=40;
|
|
983 |
c11 c21
|
|
984 |
40 NULL
|
|
985 |
DROP TABLE t1, t2;
|
|
986 |
CREATE TABLE t1 (a int PRIMARY KEY, b int);
|
|
987 |
CREATE TABLE t2 (a int PRIMARY KEY, b int);
|
|
988 |
INSERT INTO t1 VALUES (1,2), (2,1), (3,2), (4,3), (5,6), (6,5), (7,8), (8,7), (9,10);
|
|
989 |
INSERT INTO t2 VALUES (3,0), (4,1), (6,4), (7,5);
|
|
990 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t2.b <= t1.a AND t1.a <= t1.b;
|
|
991 |
a b a b
|
|
992 |
7 8 7 5
|
|
993 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a BETWEEN t2.b AND t1.b;
|
|
994 |
a b a b
|
|
995 |
7 8 7 5
|
|
996 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a NOT BETWEEN t2.b AND t1.b);
|
|
997 |
a b a b
|
|
998 |
7 8 7 5
|
|
999 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t2.b > t1.a OR t1.a > t1.b;
|
|
1000 |
a b a b
|
|
1001 |
2 1 NULL NULL
|
|
1002 |
3 2 3 0
|
|
1003 |
4 3 4 1
|
|
1004 |
6 5 6 4
|
|
1005 |
8 7 NULL NULL
|
|
1006 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a NOT BETWEEN t2.b AND t1.b;
|
|
1007 |
a b a b
|
|
1008 |
2 1 NULL NULL
|
|
1009 |
3 2 3 0
|
|
1010 |
4 3 4 1
|
|
1011 |
6 5 6 4
|
|
1012 |
8 7 NULL NULL
|
|
1013 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a BETWEEN t2.b AND t1.b);
|
|
1014 |
a b a b
|
|
1015 |
2 1 NULL NULL
|
|
1016 |
3 2 3 0
|
|
1017 |
4 3 4 1
|
|
1018 |
6 5 6 4
|
|
1019 |
8 7 NULL NULL
|
|
1020 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a = t2.a OR t2.b > t1.a OR t1.a > t1.b;
|
|
1021 |
a b a b
|
|
1022 |
2 1 NULL NULL
|
|
1023 |
3 2 3 0
|
|
1024 |
4 3 4 1
|
|
1025 |
6 5 6 4
|
|
1026 |
7 8 7 5
|
|
1027 |
8 7 NULL NULL
|
|
1028 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a != t2.a AND t1.a BETWEEN t2.b AND t1.b);
|
|
1029 |
a b a b
|
|
1030 |
2 1 NULL NULL
|
|
1031 |
3 2 3 0
|
|
1032 |
4 3 4 1
|
|
1033 |
6 5 6 4
|
|
1034 |
7 8 7 5
|
|
1035 |
8 7 NULL NULL
|
|
1036 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a = t2.a AND (t2.b > t1.a OR t1.a > t1.b);
|
|
1037 |
a b a b
|
|
1038 |
3 2 3 0
|
|
1039 |
4 3 4 1
|
|
1040 |
6 5 6 4
|
|
1041 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a != t2.a OR t1.a BETWEEN t2.b AND t1.b);
|
|
1042 |
a b a b
|
|
1043 |
3 2 3 0
|
|
1044 |
4 3 4 1
|
|
1045 |
6 5 6 4
|
|
1046 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a = t2.a OR t1.a = t2.b;
|
|
1047 |
a b a b
|
|
1048 |
3 2 3 0
|
|
1049 |
4 3 4 1
|
|
1050 |
6 5 6 4
|
|
1051 |
7 8 7 5
|
|
1052 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a IN(t2.a, t2.b);
|
|
1053 |
a b a b
|
|
1054 |
3 2 3 0
|
|
1055 |
4 3 4 1
|
|
1056 |
6 5 6 4
|
|
1057 |
7 8 7 5
|
|
1058 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a NOT IN(t2.a, t2.b));
|
|
1059 |
a b a b
|
|
1060 |
3 2 3 0
|
|
1061 |
4 3 4 1
|
|
1062 |
6 5 6 4
|
|
1063 |
7 8 7 5
|
|
1064 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a != t1.b AND t1.a != t2.b;
|
|
1065 |
a b a b
|
|
1066 |
3 2 3 0
|
|
1067 |
4 3 4 1
|
|
1068 |
6 5 6 4
|
|
1069 |
7 8 7 5
|
|
1070 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a NOT IN(t1.b, t2.b);
|
|
1071 |
a b a b
|
|
1072 |
3 2 3 0
|
|
1073 |
4 3 4 1
|
|
1074 |
6 5 6 4
|
|
1075 |
7 8 7 5
|
|
1076 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a IN(t1.b, t2.b));
|
|
1077 |
a b a b
|
|
1078 |
3 2 3 0
|
|
1079 |
4 3 4 1
|
|
1080 |
6 5 6 4
|
|
1081 |
7 8 7 5
|
|
1082 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t2.a != t2.b OR (t1.a != t2.a AND t1.a != t2.b);
|
|
1083 |
a b a b
|
|
1084 |
3 2 3 0
|
|
1085 |
4 3 4 1
|
|
1086 |
6 5 6 4
|
|
1087 |
7 8 7 5
|
|
1088 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t2.a = t2.b AND t1.a IN(t2.a, t2.b));
|
|
1089 |
a b a b
|
|
1090 |
3 2 3 0
|
|
1091 |
4 3 4 1
|
|
1092 |
6 5 6 4
|
|
1093 |
7 8 7 5
|
|
1094 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t2.a != t2.b AND t1.a != t1.b AND t1.a != t2.b;
|
|
1095 |
a b a b
|
|
1096 |
3 2 3 0
|
|
1097 |
4 3 4 1
|
|
1098 |
6 5 6 4
|
|
1099 |
7 8 7 5
|
|
1100 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t2.a = t2.b OR t1.a IN(t1.b, t2.b));
|
|
1101 |
a b a b
|
|
1102 |
3 2 3 0
|
|
1103 |
4 3 4 1
|
|
1104 |
6 5 6 4
|
|
1105 |
7 8 7 5
|
|
1106 |
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a = t2.a OR t1.a = t2.b;
|
|
1107 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
1108 |
1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 4
|
|
1109 |
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1
|
|
1110 |
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a IN(t2.a, t2.b);
|
|
1111 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
1112 |
1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 4 Using where
|
|
1113 |
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1
|
|
1114 |
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a > IF(t1.a = t2.b-2, t2.b, t2.b-1);
|
|
1115 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
1116 |
1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 4 Using where
|
|
1117 |
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1
|
|
1118 |
DROP TABLE t1,t2;
|
|
1119 |
CREATE TABLE t1 (a int);
|
|
1120 |
CREATE TABLE t2 (b int);
|
|
1121 |
INSERT INTO t1 VALUES (1), (2), (3), (4);
|
|
1122 |
INSERT INTO t2 VALUES (2), (3);
|
|
1123 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1);
|
|
1124 |
a b
|
|
1125 |
1 NULL
|
|
1126 |
2 2
|
|
1127 |
3 3
|
|
1128 |
4 NULL
|
|
1129 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1 OR 1);
|
|
1130 |
a b
|
|
1131 |
1 NULL
|
|
1132 |
2 2
|
|
1133 |
3 3
|
|
1134 |
4 NULL
|
|
1135 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (0 OR 1);
|
|
1136 |
a b
|
|
1137 |
1 NULL
|
|
1138 |
2 2
|
|
1139 |
3 3
|
|
1140 |
4 NULL
|
|
1141 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1 OR 2=2);
|
|
1142 |
a b
|
|
1143 |
1 NULL
|
|
1144 |
2 2
|
|
1145 |
3 3
|
|
1146 |
4 NULL
|
|
1147 |
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1 OR 1=0);
|
|
1148 |
a b
|
|
1149 |
1 NULL
|
|
1150 |
2 2
|
|
1151 |
3 3
|
|
1152 |
4 NULL
|
|
1153 |
DROP TABLE t1,t2;
|
|
1154 |
CREATE TABLE t1 (
|
|
|
383.1.30
by Brian Aker
Removal of latin character set. |
1155 |
f1 varchar(16) collate utf8_swedish_ci PRIMARY KEY,
|
1156 |
f2 varchar(16) collate utf8_swedish_ci
|
|
|
1
by brian
clean slate |
1157 |
);
|
1158 |
CREATE TABLE t2 (
|
|
|
383.1.30
by Brian Aker
Removal of latin character set. |
1159 |
f1 varchar(16) collate utf8_swedish_ci PRIMARY KEY,
|
1160 |
f3 varchar(16) collate utf8_swedish_ci
|
|
|
1
by brian
clean slate |
1161 |
);
|
1162 |
INSERT INTO t1 VALUES ('bla','blah');
|
|
1163 |
INSERT INTO t2 VALUES ('bla','sheep');
|
|
1164 |
SELECT * FROM t1 JOIN t2 USING(f1) WHERE f1='Bla';
|
|
1165 |
f1 f2 f3
|
|
1166 |
bla blah sheep
|
|
1167 |
SELECT * FROM t1 LEFT JOIN t2 USING(f1) WHERE f1='bla';
|
|
1168 |
f1 f2 f3
|
|
1169 |
bla blah sheep
|
|
1170 |
SELECT * FROM t1 LEFT JOIN t2 USING(f1) WHERE f1='Bla';
|
|
1171 |
f1 f2 f3
|
|
1172 |
bla blah sheep
|
|
1173 |
DROP TABLE t1,t2;
|
|
1174 |
CREATE TABLE t1 (id int PRIMARY KEY, a varchar(8));
|
|
1175 |
CREATE TABLE t2 (id int NOT NULL, b int NOT NULL, INDEX idx(id));
|
|
1176 |
INSERT INTO t1 VALUES
|
|
1177 |
(1,'aaaaaaa'), (5,'eeeeeee'), (4,'ddddddd'), (2,'bbbbbbb'), (3,'ccccccc');
|
|
1178 |
INSERT INTO t2 VALUES
|
|
1179 |
(3,10), (2,20), (5,30), (3,20), (5,10), (3,40), (3,30), (2,10), (2,40);
|
|
1180 |
EXPLAIN
|
|
1181 |
SELECT t1.id, a FROM t1 LEFT JOIN t2 ON t1.id=t2.id WHERE t2.b IS NULL;
|
|
1182 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
1183 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 5
|
|
|
201
by Brian Aker
Convert default engine to Innodb |
1184 |
1 SIMPLE t2 ref idx idx 4 test.t1.id 1 Using where; Not exists
|
|
1
by brian
clean slate |
1185 |
flush status;
|
1186 |
SELECT t1.id, a FROM t1 LEFT JOIN t2 ON t1.id=t2.id WHERE t2.b IS NULL;
|
|
1187 |
id a
|
|
1188 |
1 aaaaaaa
|
|
1189 |
4 ddddddd
|
|
1190 |
show status like 'Handler_read%';
|
|
1191 |
Variable_name Value
|
|
|
201
by Brian Aker
Convert default engine to Innodb |
1192 |
Handler_read_first 1
|
1193 |
Handler_read_key 8
|
|
|
1
by brian
clean slate |
1194 |
Handler_read_next 0
|
1195 |
Handler_read_prev 0
|
|
1196 |
Handler_read_rnd 0
|
|
1197 |
Handler_read_rnd_next 6
|
|
1198 |
DROP TABLE t1,t2;
|
|
1199 |
CREATE TABLE t1 (c int PRIMARY KEY, e int NOT NULL);
|
|
1200 |
INSERT INTO t1 VALUES (1,0), (2,1);
|
|
1201 |
CREATE TABLE t2 (d int PRIMARY KEY);
|
|
1202 |
INSERT INTO t2 VALUES (1), (2), (3);
|
|
1203 |
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON e<>0 WHERE c=1 AND d IS NULL;
|
|
1204 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
1205 |
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1
|
|
1206 |
1 SIMPLE t2 index NULL PRIMARY 4 NULL 3 Using where; Using index; Not exists
|
|
1207 |
SELECT * FROM t1 LEFT JOIN t2 ON e<>0 WHERE c=1 AND d IS NULL;
|
|
1208 |
c e d
|
|
1209 |
1 0 NULL
|
|
1210 |
SELECT * FROM t1 LEFT JOIN t2 ON e<>0 WHERE c=1 AND d<=>NULL;
|
|
1211 |
c e d
|
|
1212 |
1 0 NULL
|
|
1213 |
DROP TABLE t1,t2;
|