1
drop table if exists t1,t2,t3,t4,t5,t6;
2
CREATE TABLE t1 (a int not null, b char (10) not null);
3
insert into t1 values(1,'a'),(2,'b'),(3,'c'),(3,'c');
4
CREATE TABLE t2 (a int not null, b char (10) not null);
5
insert into t2 values (3,'c'),(4,'d'),(5,'f'),(6,'e');
6
select a,b from t1 union distinct select a,b from t2;
14
select a,b from t1 union all select a,b from t2;
24
select a,b from t1 union all select a,b from t2 order by b;
34
select a,b from t1 union all select a,b from t2 union select 7,'g';
43
select 0,'#' union select a,b from t1 union all select a,b from t2 union select 7,'gg';
53
select a,b from t1 union select a,b from t1;
58
select 't1',b,count(*) from t1 group by b UNION select 't2',b,count(*) from t2 group by b;
67
(select a,b from t1 limit 2) union all (select a,b from t2 order by a) limit 4;
73
(select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1);
78
(select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1) order by b desc;
83
(select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1) order by t1.b;
84
ERROR 42000: Table 't1' from one of the SELECTs cannot be used in global ORDER clause
85
explain extended (select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1) order by b desc;
86
id select_type table type possible_keys key key_len ref rows filtered Extra
87
1 PRIMARY t1 ALL NULL NULL NULL NULL # 100.00
88
2 UNION t2 ALL NULL NULL NULL NULL # 100.00 Using filesort
89
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL # NULL Using filesort
91
Note 1003 (select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` limit 2) union all (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` order by `test`.`t2`.`a` limit 1) order by `b` desc
92
(select sql_calc_found_rows a,b from t1 limit 2) union all (select a,b from t2 order by a) limit 2;
99
select sql_calc_found_rows a,b from t1 union all select a,b from t2 limit 2;
106
explain select a,b from t1 union all select a,b from t2;
107
id select_type table type possible_keys key key_len ref rows Extra
108
1 PRIMARY t1 ALL NULL NULL NULL NULL #
109
2 UNION t2 ALL NULL NULL NULL NULL #
110
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL #
111
explain select xx from t1 union select 1;
112
ERROR 42S22: Unknown column 'xx' in 'field list'
113
explain select a,b from t1 union select 1;
114
ERROR 21000: The used SELECT statements have a different number of columns
115
explain select 1 union select a,b from t1 union select 1;
116
ERROR 21000: The used SELECT statements have a different number of columns
117
explain select a,b from t1 union select 1 limit 0;
118
ERROR 21000: The used SELECT statements have a different number of columns
119
select a,b from t1 into outfile 'skr' union select a,b from t2;
120
ERROR HY000: Incorrect usage of UNION and INTO
121
select a,b from t1 order by a union select a,b from t2;
122
ERROR HY000: Incorrect usage of UNION and order_st BY
123
insert into t3 select a from t1 order by a union select a from t2;
124
ERROR HY000: Incorrect usage of UNION and order_st BY
125
create table t3 select a,b from t1 union select a from t2;
126
ERROR 21000: The used SELECT statements have a different number of columns
127
select a,b from t1 union select a from t2;
128
ERROR 21000: The used SELECT statements have a different number of columns
129
select * from t1 union select a from t2;
130
ERROR 21000: The used SELECT statements have a different number of columns
131
select a from t1 union select * from t2;
132
ERROR 21000: The used SELECT statements have a different number of columns
133
select * from t1 union select SQL_BUFFER_RESULT * from t2;
134
ERROR 42000: Incorrect usage/placement of 'SQL_BUFFER_RESULT'
135
create table t3 select a,b from t1 union all select a,b from t2;
136
insert into t3 select a,b from t1 union all select a,b from t2;
137
replace into t3 select a,b as c from t1 union all select a,b from t2;
139
select * union select 1;
140
ERROR HY000: No tables used
141
select 1 as a,(select a union select a);
142
a (select a union select a)
144
(select 1) union (select 2) order by 0;
145
ERROR 42S22: Unknown column '0' in 'order clause'
146
SELECT @a:=1 UNION SELECT @a:=@a+1;
150
(SELECT 1) UNION (SELECT 2) ORDER BY (SELECT a);
151
ERROR 42S22: Unknown column 'a' in 'field list'
152
(SELECT 1,3) UNION (SELECT 2,1) ORDER BY (SELECT 2);
157
`pseudo` char(35) NOT NULL default '',
158
`pseudo1` char(35) NOT NULL default '',
159
`same` int NOT NULL default '1',
160
PRIMARY KEY (`pseudo1`),
161
KEY `pseudo` (`pseudo`)
163
INSERT INTO t1 (pseudo,pseudo1,same) VALUES ('joce', 'testtt', 1),('joce', 'tsestset', 1),('dekad', 'joce', 1);
164
SELECT pseudo FROM t1 WHERE pseudo1='joce' UNION SELECT pseudo FROM t1 WHERE pseudo='joce';
168
SELECT pseudo1 FROM t1 WHERE pseudo1='joce' UNION SELECT pseudo1 FROM t1 WHERE pseudo='joce';
173
SELECT * FROM t1 WHERE pseudo1='joce' UNION SELECT * FROM t1 WHERE pseudo='joce' order by pseudo desc,pseudo1 desc;
178
SELECT pseudo1 FROM t1 WHERE pseudo='joce' UNION SELECT pseudo FROM t1 WHERE pseudo1='joce';
183
SELECT pseudo1 FROM t1 WHERE pseudo='joce' UNION ALL SELECT pseudo FROM t1 WHERE pseudo1='joce';
188
SELECT pseudo1 FROM t1 WHERE pseudo='joce' UNION SELECT 1;
194
create table t1 (a int);
195
create table t2 (a int);
196
insert into t1 values (1),(2),(3),(4),(5);
197
insert into t2 values (11),(12),(13),(14),(15);
198
(select * from t1 limit 2) union (select * from t2 limit 3) limit 4;
204
(select * from t1 limit 2) union (select * from t2 limit 3);
211
(select * from t1 limit 2) union (select * from t2 limit 20,3);
215
set SQL_SELECT_LIMIT=2;
216
(select * from t1 limit 1) union (select * from t2 limit 3);
220
set SQL_SELECT_LIMIT=DEFAULT;
223
cid int NOT NULL default '0',
224
cv varchar(190) NOT NULL default '',
228
INSERT INTO t1 VALUES (8,'dummy');
230
cid int NOT NULL auto_increment,
231
cap varchar(255) NOT NULL default '',
236
gid int NOT NULL auto_increment,
237
gn varchar(255) NOT NULL default '',
238
must int default NULL,
242
INSERT INTO t3 VALUES (1,'V1',NULL);
244
uid bigint NOT NULL default '0',
245
gid bigint default NULL,
246
rid bigint default NULL,
247
cid bigint default NULL,
248
UNIQUE KEY m (uid,gid,rid,cid),
252
KEY container (gid,rid,cid)
254
INSERT INTO t4 VALUES (1,1,NULL,NULL);
256
rid bigint NOT NULL auto_increment,
257
rl varchar(255) NOT NULL default '',
262
uid bigint NOT NULL auto_increment,
263
un varchar(190) NOT NULL default '',
264
uc int NOT NULL default '0',
266
UNIQUE KEY nc (un,uc),
269
INSERT INTO t6 VALUES (1,'test',8);
270
SELECT t4.uid, t5.rl, t3.gn as g1, t4.cid, t4.gid as gg FROM t3, t6, t1, t4 left join t5 on t5.rid = t4.rid left join t2 on t2.cid = t4.cid WHERE t3.gid=t4.gid AND t6.uid = t4.uid AND t6.uc = t1.cid AND t1.cv = "dummy" AND t6.un = "test";
273
SELECT t4.uid, t5.rl, t3.gn as g1, t4.cid, t4.gid as gg FROM t3, t6, t1, t4 left join t5 on t5.rid = t4.rid left join t2 on t2.cid = t4.cid WHERE t3.gid=t4.gid AND t6.uid = t4.uid AND t3.must IS NOT NULL AND t6.uc = t1.cid AND t1.cv = "dummy" AND t6.un = "test";
275
(SELECT t4.uid, t5.rl, t3.gn as g1, t4.cid, t4.gid as gg FROM t3, t6, t1, t4 left join t5 on t5.rid = t4.rid left join t2 on t2.cid = t4.cid WHERE t3.gid=t4.gid AND t6.uid = t4.uid AND t3.must IS NOT NULL AND t6.uc = t1.cid AND t1.cv = "dummy" AND t6.un = "test") UNION (SELECT t4.uid, t5.rl, t3.gn as g1, t4.cid, t4.gid as gg FROM t3, t6, t1, t4 left join t5 on t5.rid = t4.rid left join t2 on t2.cid = t4.cid WHERE t3.gid=t4.gid AND t6.uid = t4.uid AND t6.uc = t1.cid AND t1.cv = "dummy" AND t6.un = "test");
278
drop table t1,t2,t3,t4,t5,t6;
279
CREATE TABLE t1 (a int not null, b char (10) not null);
280
insert into t1 values(1,'a'),(2,'b'),(3,'c'),(3,'c');
281
CREATE TABLE t2 (a int not null, b char (10) not null);
282
insert into t2 values (3,'c'),(4,'d'),(5,'f'),(6,'e');
283
create table t3 select a,b from t1 union select a,b from t2;
284
create table t4 (select a,b from t1) union (select a,b from t2) limit 2;
285
insert into t4 select a,b from t1 union select a,b from t2;
286
insert into t3 (select a,b from t1) union (select a,b from t2) limit 2;
307
drop table t1,t2,t3,t4;
308
create table t1 (a int);
309
insert into t1 values (1),(2),(3);
310
create table t2 (a int);
311
insert into t2 values (3),(4),(5);
312
(SELECT SQL_CALC_FOUND_ROWS * FROM t1) UNION all (SELECT * FROM t2) LIMIT 1;
318
(SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 1) UNION all (SELECT * FROM t2) LIMIT 2;
325
(SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 1) UNION all (SELECT * FROM t2);
334
(SELECT SQL_CALC_FOUND_ROWS * FROM t1) UNION all (SELECT * FROM t2 LIMIT 1);
343
(SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 1) UNION SELECT * FROM t2 LIMIT 1;
344
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your Drizzle server version for the right syntax to use near '' at line 1
345
SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 1 UNION all SELECT * FROM t2 LIMIT 2;
352
SELECT SQL_CALC_FOUND_ROWS * FROM t1 UNION all SELECT * FROM t2 LIMIT 2;
359
SELECT SQL_CALC_FOUND_ROWS * FROM t1 UNION SELECT * FROM t2 LIMIT 2;
366
SELECT SQL_CALC_FOUND_ROWS * FROM t1 UNION SELECT * FROM t2 LIMIT 100;
376
SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 100 UNION SELECT * FROM t2;
386
SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 1 UNION SELECT * FROM t2;
395
SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 1 UNION SELECT * FROM t2 LIMIT 2;
402
SELECT SQL_CALC_FOUND_ROWS * FROM t1 UNION SELECT * FROM t2 LIMIT 2,2;
409
SELECT SQL_CALC_FOUND_ROWS * FROM t1 limit 2,2 UNION SELECT * FROM t2;
417
SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY a desc LIMIT 1;
420
(SELECT * FROM t1 ORDER by a) UNION ALL (SELECT * FROM t2 ORDER BY a) ORDER BY A desc LIMIT 4;
426
(SELECT * FROM t1) UNION all (SELECT SQL_CALC_FOUND_ROWS * FROM t2) LIMIT 1;
427
ERROR 42000: Incorrect usage/placement of 'SQL_CALC_FOUND_ROWS'
428
create temporary table t1 select a from t1 union select a from t2;
429
drop temporary table t1;
430
create table t1 select a from t1 union select a from t2;
431
ERROR HY000: You can't specify target table 't1' for update in FROM clause
432
select a from t1 union select a from t2 order by t2.a;
433
ERROR 42S22: Unknown column 't2.a' in 'order clause'
435
select length(version()) > 1 as `*` UNION select 2;
439
create table t1 (a int);
440
insert into t1 values (0), (3), (1), (2);
441
explain (select * from t1) union (select * from t1) order by a;
442
id select_type table type possible_keys key key_len ref rows Extra
443
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
444
2 UNION t1 ALL NULL NULL NULL NULL 4
445
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL Using filesort
447
CREATE TEMPORARY TABLE t1 ( id int default '0') ENGINE=MyISAM;
448
INSERT INTO t1 (id) VALUES("1");
449
CREATE TEMPORARY TABLE t2 ( id int default '0', id_master int default '0', text1 varchar(5) default NULL, text2 varchar(5) default NULL) ENGINE=MyISAM;
450
INSERT INTO t2 (id, id_master, text1, text2) VALUES("1", "1",
452
INSERT INTO t2 (id, id_master, text1, text2) VALUES("2", "1",
454
INSERT INTO t2 (id, id_master, text1, text2) VALUES("3", "1", NULL,
456
INSERT INTO t2 (id, id_master, text1, text2) VALUES("4", "1",
458
SELECT 1 AS id_master, 1 AS id, NULL AS text1, 'ABCDE' AS text2 UNION SELECT id_master, t2.id, text1, text2 FROM t1 LEFT JOIN t2 ON t1.id = t2.id_master;
459
id_master id text1 text2
465
SELECT 1 AS id_master, 1 AS id, 'ABCDE' AS text1, 'ABCDE' AS text2 UNION SELECT id_master, t2.id, text1, text2 FROM t1 LEFT JOIN t2 ON t1.id = t2.id_master;
466
id_master id text1 text2
472
drop table if exists t1,t2;
473
create table t1 (a int not null primary key auto_increment, b int, key(b));
474
create table t2 (a int not null primary key auto_increment, b int);
475
insert into t1 (b) values (1),(2),(2),(3);
476
insert into t2 (b) values (10),(11),(12),(13);
477
explain extended (select * from t1 where a=1) union (select * from t2 where a=1);
478
id select_type table type possible_keys key key_len ref rows filtered Extra
479
1 PRIMARY t1 const PRIMARY PRIMARY 4 const 1 100.00
480
2 UNION t2 const PRIMARY PRIMARY 4 const 1 100.00
481
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL
483
Note 1003 (select '1' AS `a`,'1' AS `b` from `test`.`t1` where ('1' = 1)) union (select '1' AS `a`,'10' AS `b` from `test`.`t2` where ('1' = 1))
484
(select * from t1 where a=5) union (select * from t2 where a=1);
487
(select * from t1 where a=5 and a=6) union (select * from t2 where a=1);
490
(select t1.a,t1.b from t1,t2 where t1.a=5) union (select * from t2 where a=1);
493
(select * from t1 where a=1) union (select t1.a,t2.a from t1,t2 where t1.a=t2.a);
499
explain (select * from t1 where a=1 and b=10) union (select straight_join t1.a,t2.a from t1,t2 where t1.a=t2.a);
500
id select_type table type possible_keys key key_len ref rows Extra
501
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
502
2 UNION t1 index PRIMARY PRIMARY 4 NULL 4 Using index
503
2 UNION t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using index
504
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
505
explain (select * from t1 where a=1) union (select * from t1 where b=1);
506
id select_type table type possible_keys key key_len ref rows Extra
507
1 PRIMARY t1 const PRIMARY PRIMARY 4 const 1
508
2 UNION t1 ref b b 5 const 1 Using where; Using index
509
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
511
create table t1 ( id int not null auto_increment, primary key (id) ,user_name text );
512
create table t2 ( id int not null auto_increment, primary key (id) ,group_name text );
513
create table t3 ( id int not null auto_increment, primary key (id) ,user_id int ,index user_idx (user_id) ,foreign key (user_id) references t1(id) ,group_id int ,index group_idx (group_id) ,foreign key (group_id) references t2(id) );
514
insert into t1 (user_name) values ('Tester');
515
insert into t2 (group_name) values ('Group A');
516
insert into t2 (group_name) values ('Group B');
517
insert into t3 (user_id, group_id) values (1,1);
518
select 1 'is_in_group', a.user_name, c.group_name, b.id from t1 a, t3 b, t2 c where a.id = b.user_id and b.group_id = c.id UNION select 0 'is_in_group', a.user_name, c.group_name, null from t1 a CROSS JOIN t2 c;
519
is_in_group user_name group_name id
521
0 Tester Group A NULL
522
0 Tester Group B NULL
523
drop table t3, t1, t2;
524
create table t1 (mat_id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, matintnum CHAR(6) NOT NULL, test INT NULL);
525
create table t2 (mat_id INT NOT NULL, pla_id INT NOT NULL);
526
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);
527
insert into t2 values (1, 100), (1, 101), (1, 102), (2, 100), (2, 103), (2, 104), (3, 101), (3, 102), (3, 105);
528
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 union SELECT 0, 0;
538
create table t1 SELECT "a" as a UNION select "aa" as a;
543
show create table t1;
545
t1 CREATE TABLE `t1` (
546
`a` VARCHAR(2) COLLATE utf8_general_ci NOT NULL DEFAULT ''
547
) ENGINE=DEFAULT COLLATE = utf8_general_ci
549
create table t1 SELECT 12 as a UNION select "aa" as a;
554
show create table t1;
556
t1 CREATE TABLE `t1` (
557
`a` VARBINARY(8) NOT NULL DEFAULT ''
558
) ENGINE=DEFAULT COLLATE = utf8_general_ci
560
create table t1 SELECT 12 as a UNION select 12.2 as a;
565
show create table t1;
567
t1 CREATE TABLE `t1` (
568
`a` DECIMAL(3,1) NOT NULL DEFAULT '0.0'
569
) ENGINE=DEFAULT COLLATE = utf8_general_ci
571
create table t2 (it1 int, it2 int not null, i int not null, ib int, f float, d double, da date, dt datetime, sc char(10), sv varchar(10), b blob, tx text);
572
insert into t2 values (NULL, 1, 3, 4, 1.5, 2.5, '1972-10-22', '1972-10-22 11:50:00', 'testc', 'testv', 'tetetetetest', 'teeeeeeeeeeeest');
573
create table t1 SELECT it2 from t2 UNION select it1 from t2;
578
show create table t1;
580
t1 CREATE TABLE `t1` (
581
`it2` INT DEFAULT NULL
582
) ENGINE=DEFAULT COLLATE = utf8_general_ci
584
create table t1 SELECT it2 from t2 UNION select i from t2;
589
show create table t1;
591
t1 CREATE TABLE `t1` (
592
`it2` INT NOT NULL DEFAULT '0'
593
) ENGINE=DEFAULT COLLATE = utf8_general_ci
595
create table t1 SELECT i from t2 UNION select f from t2;
600
show create table t1;
602
t1 CREATE TABLE `t1` (
603
`i` DOUBLE DEFAULT NULL
604
) ENGINE=DEFAULT COLLATE = utf8_general_ci
606
create table t1 SELECT f from t2 UNION select d from t2;
611
show create table t1;
613
t1 CREATE TABLE `t1` (
614
`f` DOUBLE DEFAULT NULL
615
) ENGINE=DEFAULT COLLATE = utf8_general_ci
617
create table t1 SELECT ib from t2 UNION select f from t2;
622
show create table t1;
624
t1 CREATE TABLE `t1` (
625
`ib` DOUBLE DEFAULT NULL
626
) ENGINE=DEFAULT COLLATE = utf8_general_ci
628
create table t1 SELECT ib from t2 UNION select d from t2;
633
show create table t1;
635
t1 CREATE TABLE `t1` (
636
`ib` DOUBLE DEFAULT NULL
637
) ENGINE=DEFAULT COLLATE = utf8_general_ci
639
create table t1 SELECT f from t2 UNION select da from t2;
644
show create table t1;
646
t1 CREATE TABLE `t1` (
647
`f` VARBINARY(22) DEFAULT NULL
648
) ENGINE=DEFAULT COLLATE = utf8_general_ci
650
create table t1 SELECT da from t2 UNION select dt from t2;
655
show create table t1;
657
t1 CREATE TABLE `t1` (
658
`da` DATETIME DEFAULT NULL
659
) ENGINE=DEFAULT COLLATE = utf8_general_ci
661
create table t1 SELECT dt from t2 UNION select trim(sc) from t2;
662
select trim(dt) from t1;
666
show create table t1;
668
t1 CREATE TABLE `t1` (
669
`dt` VARBINARY(40) DEFAULT NULL
670
) ENGINE=DEFAULT COLLATE = utf8_general_ci
672
create table t1 SELECT dt from t2 UNION select sv from t2;
677
show create table t1;
679
t1 CREATE TABLE `t1` (
680
`dt` VARBINARY(40) DEFAULT NULL
681
) ENGINE=DEFAULT COLLATE = utf8_general_ci
683
create table t1 SELECT sc from t2 UNION select sv from t2;
688
show create table t1;
690
t1 CREATE TABLE `t1` (
691
`sc` VARCHAR(10) COLLATE utf8_general_ci DEFAULT NULL
692
) ENGINE=DEFAULT COLLATE = utf8_general_ci
694
create table t1 SELECT dt from t2 UNION select b from t2;
699
show create table t1;
701
t1 CREATE TABLE `t1` (
703
) ENGINE=DEFAULT COLLATE = utf8_general_ci
705
create table t1 SELECT sv from t2 UNION select b from t2;
710
show create table t1;
712
t1 CREATE TABLE `t1` (
714
) ENGINE=DEFAULT COLLATE = utf8_general_ci
716
create table t1 SELECT i from t2 UNION select d from t2 UNION select b from t2;
722
show create table t1;
724
t1 CREATE TABLE `t1` (
726
) ENGINE=DEFAULT COLLATE = utf8_general_ci
728
create table t1 SELECT sv from t2 UNION select tx from t2;
733
show create table t1;
735
t1 CREATE TABLE `t1` (
736
`sv` TEXT COLLATE utf8_general_ci
737
) ENGINE=DEFAULT COLLATE = utf8_general_ci
739
create table t1 SELECT b from t2 UNION select tx from t2;
744
show create table t1;
746
t1 CREATE TABLE `t1` (
748
) ENGINE=DEFAULT COLLATE = utf8_general_ci
750
create table t1 select 1 union select -1;
755
show create table t1;
757
t1 CREATE TABLE `t1` (
758
`1` BIGINT NOT NULL DEFAULT '0'
759
) ENGINE=DEFAULT COLLATE = utf8_general_ci
761
create table t1 select _latin1"test" union select _latin1"testt" ;
762
ERROR 42S22: Unknown column '_latin1' in 'field list'
763
create table t1 select _utf8"test" union select _utf8"testt" ;
764
ERROR 42S22: Unknown column '_utf8' in 'field list'
765
create table t1 select "test" union select "testt" ;
766
show create table t1;
768
t1 CREATE TABLE `t1` (
769
`test` VARCHAR(5) COLLATE utf8_general_ci NOT NULL DEFAULT ''
770
) ENGINE=DEFAULT COLLATE = utf8_general_ci
772
create table t1 (s char(200));
773
insert into t1 values (repeat("1",200));
774
create table t2 select * from t1;
775
insert into t2 select * from t1;
776
insert into t1 select * from t2;
777
insert into t2 select * from t1;
778
insert into t1 select * from t2;
779
insert into t2 select * from t1;
780
set local tmp_table_size=1024;
781
select SQL_BIG_RESULT count(*) from (select SQL_BIG_RESULT * from t1 union all select * from t2 order by 1) b;
784
select count(*) from t1;
787
select count(*) from t2;
791
set local tmp_table_size=default;
792
create table t1 (a int, index (a), b int);
793
insert t1 values (1,1),(2,2),(3,3),(4,4),(5,5);
794
insert t1 select a+1, a+b from t1;
795
insert t1 select a+1, a+b from t1;
796
insert t1 select a+1, a+b from t1;
797
insert t1 select a+1, a+b from t1;
798
insert t1 select a+1, a+b from t1;
800
show status like 'Slow_queries';
803
select count(*) from t1 where a=7;
806
show status like 'Slow_queries';
809
select count(*) from t1 where b=13;
812
show status like 'Slow_queries';
815
select count(*) from t1 where b=13 union select count(*) from t1 where a=7;
819
show status like 'Slow_queries';
822
select count(*) from t1 where a=7 union select count(*) from t1 where b=13;
826
show status like 'Slow_queries';
830
select a from t1 where b not in (1,2,3) union select a from t1 where b not in (4,5,6);
842
show status like 'Slow_queries';
846
create table t1 ( RID int not null default '0', IID int not null default '0', nada varchar(50) not null,NAME varchar(50) not null,PHONE varchar(50) not null);
847
insert into t1 ( RID,IID,nada,NAME,PHONE) values (1, 1, 'main', 'a', '111'), (2, 1, 'main', 'b', '222'), (3, 1, 'main', 'c', '333'), (4, 1, 'main', 'd', '444'), (5, 1, 'main', 'e', '555'), (6, 2, 'main', 'c', '333'), (7, 2, 'main', 'd', '454'), (8, 2, 'main', 'e', '555'), (9, 2, 'main', 'f', '666'), (10, 2, 'main', 'g', '777');
848
select A.NAME, A.PHONE, B.NAME, B.PHONE from t1 A left join t1 B on A.NAME = B.NAME and B.IID = 2 where A.IID = 1 and (A.PHONE <> B.PHONE or B.NAME is null) union select A.NAME, A.PHONE, B.NAME, B.PHONE from t1 B left join t1 A on B.NAME = A.NAME and A.IID = 1 where B.IID = 2 and (A.PHONE <> B.PHONE or A.NAME is null);
849
NAME PHONE NAME PHONE
856
create table t1 (col1 int, col2 int);
857
insert into t1 values (1,2),(3,4),(5,6),(7,8),(9,10);
858
select col1 n from t1 union select col2 n from t1 order by n;
870
alter table t1 add index myindex (col2);
871
select col1 n from t1 union select col2 n from t1 order by n;
884
create table t1 (i int);
885
insert into t1 values (1);
886
select * from t1 UNION select * from t1;
889
select * from t1 UNION ALL select * from t1;
893
select * from t1 UNION select * from t1 UNION ALL select * from t1;
898
select 1 as a union all select 1 union all select 2 union select 1 union all select 2;
903
set sql_select_limit=1;
904
select 1 union select 2;
907
(select 1) union (select 2);
910
(select 1) union (select 2) union (select 3) limit 2;
914
set sql_select_limit=default;
915
create table t1 (a int);
916
insert into t1 values (100), (1);
917
create table t2 (a int);
918
insert into t2 values (100);
919
select a from t1 union select a from t2 order by a;
923
SET SQL_SELECT_LIMIT=1;
924
select a from t1 union select a from t2 order by a;
928
set sql_select_limit=default;
929
CREATE TABLE t1 (i int default NULL,c char(1) default NULL,KEY i (i));
930
CREATE TABLE t2 (i int default NULL,c char(1) default NULL,KEY i (i));
931
explain (select * from t1) union (select * from t2) order by not_existing_column;
932
ERROR 42S22: Unknown column 'not_existing_column' in 'order clause'
934
CREATE TABLE t1 (uid int);
935
INSERT INTO t1 SELECT 150;
936
SELECT 'a' UNION SELECT uid FROM t1;
941
CREATE TABLE t1 ( ID1 int NOT NULL DEFAULT '0' , ID2 datetime, DATA1 varchar(10) , DATA2 double(5,4) , DATA3 datetime , PRIMARY KEY (ID1,ID2));
942
CREATE TABLE t2 ( ID int NOT NULL DEFAULT '0' , DATA1 timestamp NULL, PRIMARY KEY (ID));
943
(SELECT * FROM t1 AS PARTITIONED, t2 AS
944
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1) UNION
945
(SELECT * FROM t1 AS PARTITIONED, t2 AS
946
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1) UNION
947
(SELECT * FROM t1 AS PARTITIONED, t2 AS
948
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1) UNION
949
(SELECT * FROM t1 AS PARTITIONED, t2 AS
950
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1) UNION
951
(SELECT * FROM t1 AS PARTITIONED, t2 AS
952
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1) UNION
953
(SELECT * FROM t1 AS PARTITIONED, t2 AS
954
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1) UNION
955
(SELECT * FROM t1 AS PARTITIONED, t2 AS
956
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1) UNION
957
(SELECT * FROM t1 AS PARTITIONED, t2 AS
958
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1) UNION
959
(SELECT * FROM t1 AS PARTITIONED, t2 AS
960
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1) UNION
961
(SELECT * FROM t1 AS PARTITIONED, t2 AS
962
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1) UNION
963
(SELECT * FROM t1 AS PARTITIONED, t2 AS
964
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1) UNION
965
(SELECT * FROM t1 AS PARTITIONED, t2 AS
966
PARTITIONED_B WHERE PARTITIONED_B.ID=PARTITIONED.ID1);
967
ID1 ID2 DATA1 DATA2 DATA3 ID DATA1
969
create table t1 (a ENUM('Yes', 'No') NOT NULL);
970
create table t2 (a ENUM('aaa', 'bbb') NOT NULL);
971
insert into t1 values ('No');
972
insert into t2 values ('bbb');
973
create table t3 (a ENUM('Yes', 'No') NOT NULL);
974
create table t4 (a ENUM('aaa', 'bbb') NOT NULL);
975
insert into t3 values (1);
976
insert into t4 values (3);
977
ERROR HY000: Received an invalid enum value '3'.
978
select "1" as a union select a from t1;
982
select a as a from t1 union select "1";
986
select a as a from t2 union select a from t1;
990
select "1" as a union select a from t3;
994
select a as a from t3 union select "1";
998
select a as a from t4 union select a from t3;
1001
select a as a from t1 union select a from t4;
1004
drop table t1,t2,t3,t4;
1006
(select 'test') union
1007
(select 'TEST') union
1009
show create table t1;
1011
t1 CREATE TABLE `t1` (
1012
`test` VARCHAR(4) COLLATE utf8_general_ci NOT NULL DEFAULT ''
1013
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1014
select count(*) from t1;
1019
(select 'test' collate utf8_bin) union
1020
(select 'TEST') union
1022
show create table t1;
1024
t1 CREATE TABLE `t1` (
1025
`'test' collate utf8_bin` VARCHAR(4) COLLATE utf8_bin DEFAULT NULL
1026
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1027
select count(*) from t1;
1032
(select 'test') union
1033
(select 'TEST' collate utf8_bin) union
1035
show create table t1;
1037
t1 CREATE TABLE `t1` (
1038
`test` VARCHAR(4) COLLATE utf8_bin DEFAULT NULL
1039
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1040
select count(*) from t1;
1045
(select 'test') union
1046
(select 'TEST') union
1047
(select 'TeST' collate utf8_bin);
1048
show create table t1;
1050
t1 CREATE TABLE `t1` (
1051
`test` VARCHAR(4) COLLATE utf8_bin DEFAULT NULL
1052
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1053
select count(*) from t1;
1058
a char character set utf8 collate utf8_swedish_ci,
1059
b char character set utf8 collate utf8_spanish_ci);
1060
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your Drizzle server version for the right syntax to use near 'character set utf8 collate utf8_swedish_ci,
1061
b char character set utf8 collate ut' at line 2
1063
a char collate utf8_swedish_ci,
1064
b char collate utf8_spanish_ci);
1066
(select a from t2) union
1068
ERROR HY000: Illegal mix of collations for operation 'UNION'
1070
(select a collate utf8_swedish_ci from t2) union
1072
ERROR 42000: Incorrect column name 'a collate utf8_swedish_ci '
1074
(select a from t2) union
1075
(select b collate utf8_swedish_ci from t2);
1076
show create table t1;
1078
t1 CREATE TABLE `t1` (
1079
`a` VARCHAR(1) COLLATE utf8_swedish_ci DEFAULT NULL
1080
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1083
(select a from t2) union
1084
(select b from t2) union
1085
(select 'c' collate utf8_spanish_ci from t2);
1086
show create table t1;
1088
t1 CREATE TABLE `t1` (
1089
`a` VARCHAR(1) COLLATE utf8_spanish_ci DEFAULT NULL
1090
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1093
create table t1(a1 int, f1 char(10));
1095
select f2,a1 from (select a1, CAST('2004-12-31' AS DATE) f2 from t1) a
1097
select f2,a1 from (select a1, CAST('2004-12-31' AS DATE) f2 from t1) a
1099
show columns from t2;
1100
Field Type Null Default Default_is_NULL On_Update
1104
create table t1 (f1 int);
1105
create table t2 (f1 int, f2 int ,f3 date);
1106
create table t3 (f1 int, f2 char(10));
1109
select t2.f3 as sdate
1111
left outer join t2 on (t1.f1 = t2.f1)
1112
inner join t3 on (t2.f2 = t3.f1)
1113
order by t1.f1, t3.f1, t2.f3
1117
select cast('2004-12-31' as date) as sdate
1119
left outer join t2 on (t1.f1 = t2.f1)
1120
inner join t3 on (t2.f2 = t3.f1)
1122
order by t1.f1, t3.f1, t2.f3
1125
show columns from t4;
1126
Field Type Null Default Default_is_NULL On_Update
1128
drop table t1, t2, t3, t4;
1129
create table t1 (a int not null, b char (10) not null);
1130
insert into t1 values(1,'a'),(2,'b'),(3,'c'),(3,'c');
1131
select * from ((select * from t1 limit 1)) a;
1134
select * from ((select * from t1 limit 1) union (select * from t1 limit 1)) a;
1137
select * from ((select * from t1 limit 1) union (select * from t1 limit 1) union (select * from t1 limit 1)) a;
1140
select * from ((((select * from t1))) union (select * from t1) union (select * from t1)) a;
1145
select * from ((select * from t1) union (((select * from t1))) union (select * from t1)) a;
1152
select concat('value is: ', @val) union select 'some text';
1153
concat('value is: ', @val)
1156
select concat('a', 'b' collate utf8_bin);
1157
concat('a', 'b' collate utf8_bin)
1159
create table t1 (foo varchar(100)) collate=utf8_bin;
1160
insert into t1 (foo) values ("foo");
1161
select foo from t1 union select 'bar' as foo from dual;
1162
ERROR 42S02: Unknown table 'test.dual'
1163
select foo from t1 union select 'bar' as foo;
1168
create table t1 (f1 decimal(60,25), f2 decimal(60,25));
1169
insert into t1 values (0.0,0.0);
1170
select f1 from t1 union all select f2 from t1;
1172
0.0000000000000000000000000
1173
0.0000000000000000000000000
1174
select 'XXXXXXXXXXXXXXXXXXXX' as description, f1 from t1
1176
select 'YYYYYYYYYYYYYYYYYYYY' as description, f2 from t1;
1178
XXXXXXXXXXXXXXXXXXXX 0.0000000000000000000000000
1179
YYYYYYYYYYYYYYYYYYYY 0.0000000000000000000000000
1181
create table t1 (f1 decimal(60,24), f2 decimal(60,24));
1182
insert into t1 values (0.0,0.0);
1183
select f1 from t1 union all select f2 from t1;
1185
0.000000000000000000000000
1186
0.000000000000000000000000
1187
select 'XXXXXXXXXXXXXXXXXXXX' as description, f1 from t1
1189
select 'YYYYYYYYYYYYYYYYYYYY' as description, f2 from t1;
1191
XXXXXXXXXXXXXXXXXXXX 0.000000000000000000000000
1192
YYYYYYYYYYYYYYYYYYYY 0.000000000000000000000000
1194
create table t1 (a varchar(5));
1195
create table t2 select * from t1 union select 'abcdefghijkl';
1196
show create table t2;
1198
t2 CREATE TABLE `t2` (
1199
`a` VARCHAR(12) COLLATE utf8_general_ci DEFAULT NULL
1200
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1201
select row_format from data_dictionary.TABLES where table_schema="test" and table_name="t2";
1204
show create table t2;
1206
t2 CREATE TABLE `t2` (
1207
`a` VARCHAR(12) COLLATE utf8_general_ci DEFAULT NULL
1208
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1210
CREATE TABLE t1 (a mediumtext);
1211
CREATE TABLE t2 (b varchar(20));
1212
INSERT INTO t1 VALUES ('a'),('b');
1213
SELECT left(a,100000000) FROM t1 UNION SELECT b FROM t2;
1217
create table t3 SELECT left(a,100000000) FROM t1 UNION SELECT b FROM t2;
1218
show create table t3;
1220
t3 CREATE TABLE `t3` (
1221
`left(a,100000000)` TEXT COLLATE utf8_general_ci
1222
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1223
drop tables t1,t2,t3;
1224
CREATE TABLE t1 (a longtext);
1225
CREATE TABLE t2 (b varchar(20));
1226
INSERT INTO t1 VALUES ('a'),('b');
1227
SELECT left(a,100000000) FROM t1 UNION SELECT b FROM t2;
1231
create table t3 SELECT left(a,100000000) FROM t1 UNION SELECT b FROM t2;
1232
show create table t3;
1234
t3 CREATE TABLE `t3` (
1235
`left(a,100000000)` TEXT COLLATE utf8_general_ci
1236
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1237
drop tables t1,t2,t3;
1238
SELECT @tmp_max:= @@max_allowed_packet;
1239
@tmp_max:= @@max_allowed_packet
1241
SET max_allowed_packet=25000000;
1242
CREATE TABLE t1 (a mediumtext);
1243
CREATE TABLE t2 (b varchar(20));
1244
INSERT INTO t1 VALUES ('a');
1245
CREATE TABLE t3 SELECT REPEAT(a,20000000) AS a FROM t1 UNION SELECT b FROM t2;
1246
SHOW CREATE TABLE t3;
1248
t3 CREATE TABLE `t3` (
1249
`a` TEXT COLLATE utf8_general_ci
1250
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1252
CREATE TABLE t1 (a tinytext);
1253
INSERT INTO t1 VALUES ('a');
1254
CREATE TABLE t3 SELECT REPEAT(a,2) AS a FROM t1 UNION SELECT b FROM t2;
1255
SHOW CREATE TABLE t3;
1257
t3 CREATE TABLE `t3` (
1258
`a` TEXT COLLATE utf8_general_ci
1259
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1261
CREATE TABLE t1 (a mediumtext);
1262
INSERT INTO t1 VALUES ('a');
1263
CREATE TABLE t3 SELECT REPEAT(a,2) AS a FROM t1 UNION SELECT b FROM t2;
1264
SHOW CREATE TABLE t3;
1266
t3 CREATE TABLE `t3` (
1267
`a` TEXT COLLATE utf8_general_ci
1268
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1270
CREATE TABLE t1 (a tinyblob);
1271
INSERT INTO t1 VALUES ('a');
1272
CREATE TABLE t3 SELECT REPEAT(a,2) AS a FROM t1 UNION SELECT b FROM t2;
1273
SHOW CREATE TABLE t3;
1275
t3 CREATE TABLE `t3` (
1277
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1278
DROP TABLES t1,t2,t3;
1279
SET max_allowed_packet:= @tmp_max;
1280
create table t1 ( id int not null auto_increment, primary key (id), col1 int);
1281
insert into t1 (col1) values (2),(3),(4),(5),(6);
1282
select 99 union all select id from t1 order by 1;
1290
select id from t1 union all select 99 order by 1;
1299
create table t1(f1 char(1), f2 char(5), f3 blob, f4 blob, f5 timestamp, f6 varchar(1) collate utf8_general_ci, f7 text);
1300
create table t2 as select *, f6 as f8 from t1 union select *, f7 from t1;
1301
show create table t2;
1303
t2 CREATE TABLE `t2` (
1304
`f1` VARCHAR(1) COLLATE utf8_general_ci DEFAULT NULL,
1305
`f2` VARCHAR(5) COLLATE utf8_general_ci DEFAULT NULL,
1308
`f5` TIMESTAMP NULL DEFAULT NULL,
1309
`f6` VARCHAR(1) COLLATE utf8_general_ci DEFAULT NULL,
1310
`f7` TEXT COLLATE utf8_general_ci,
1311
`f8` TEXT COLLATE utf8_general_ci
1312
) ENGINE=DEFAULT COLLATE = utf8_general_ci
1314
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1315
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1316
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1317
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1318
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1319
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1320
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1321
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1322
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1323
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1324
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1325
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1326
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1327
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1328
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1329
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1330
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1331
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1332
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1333
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1334
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1335
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1336
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1337
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1338
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1339
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1340
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1341
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1342
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1343
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1344
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1345
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1346
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1347
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1348
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1349
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1350
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1351
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1352
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1353
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1354
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1355
(select avg(1)) union (select avg(1)) union (select avg(1)) union
1356
(select avg(1)) union (select avg(1)) union (select avg(1));
1359
select '12' union select '12345';
1363
CREATE TABLE t1 (a int);
1364
INSERT INTO t1 VALUES (3),(1),(2),(4),(1);
1365
SELECT a FROM (SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY a) AS test;
1371
SELECT a FROM (SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY c) AS test;
1372
ERROR 42S22: Unknown column 'c' in 'order clause'
1374
(select 1 into @var) union (select 1);
1375
ERROR HY000: Incorrect usage of UNION and INTO
1376
(select 1) union (select 1 into @var);
1380
(select 2) union (select 1 into @var);
1381
ERROR 42000: Result consisted of more than one row
1382
CREATE TABLE t1 (a int);
1383
INSERT INTO t1 VALUES (10), (20);
1384
CREATE TABLE t2 (b int);
1385
INSERT INTO t2 VALUES (10), (50), (50);
1388
SELECT b, COUNT(*) FROM t2 GROUP BY b WITH ROLLUP
1397
SELECT b, COUNT(*) FROM t2 GROUP BY b WITH ROLLUP
1406
SELECT b, COUNT(*) FROM t2 GROUP BY b WITH ROLLUP
1407
ORDER BY a ASC LIMIT 3;
1414
SELECT b, COUNT(*) FROM t2 GROUP BY b WITH ROLLUP
1424
(SELECT b, COUNT(*) FROM t2 GROUP BY b WITH ROLLUP ORDER BY a);
1425
ERROR HY000: Incorrect usage of CUBE/ROLLUP and ORDER BY
1428
SELECT b, COUNT(*) FROM t2 GROUP BY b WITH ROLLUP ORDER BY a
1431
ERROR HY000: Incorrect usage of UNION and order_st BY
1433
CREATE TABLE t1 (a INT);
1434
INSERT INTO t1 VALUES (1), (2), (3);
1435
CREATE TABLE t2 SELECT * FROM (SELECT NULL) a UNION SELECT a FROM t1;
1437
Field Type Null Default Default_is_NULL On_Update
1438
NULL INTEGER YES YES
1439
CREATE TABLE t3 SELECT a FROM t1 UNION SELECT * FROM (SELECT NULL) a;
1441
Field Type Null Default Default_is_NULL On_Update
1443
CREATE TABLE t4 SELECT NULL;
1445
Field Type Null Default Default_is_NULL On_Update
1446
NULL VARBINARY YES YES
1447
CREATE TABLE t5 SELECT NULL UNION SELECT NULL;
1449
Field Type Null Default Default_is_NULL On_Update
1450
NULL VARBINARY YES YES
1452
SELECT * FROM (SELECT * FROM (SELECT NULL)a) b UNION SELECT a FROM t1;
1454
Field Type Null Default Default_is_NULL On_Update
1455
NULL INTEGER YES YES
1456
DROP TABLE t1, t2, t3, t4, t5, t6;