mariadb/mysql-test/r/bdb.result

drop table if exists t1,t2,t3,t4,t5,t6,t7,t8;
create table t1 (id int unsigned not null auto_increment, code tinyint unsigned not null, name char(20) not null, primary key (id), key (code), unique (name)) engine=bdb;
insert into t1 (code, name) values (1, 'Tim'), (1, 'Monty'), (2, 'David'), (2, 'Erik'), (3, 'Sasha'), (3, 'Jeremy'), (4, 'Matt');
select id, code, name from t1 order by id;
id	code	name
1	1	Tim
2	1	Monty
3	2	David
4	2	Erik
5	3	Sasha
6	3	Jeremy
7	4	Matt
update ignore t1 set id = 8, name = 'Sinisa' where id < 3;
select id, code, name from t1 order by id;
id	code	name
2	1	Monty
3	2	David
4	2	Erik
5	3	Sasha
6	3	Jeremy
7	4	Matt
8	1	Sinisa
update ignore t1 set id = id + 10, name = 'Ralph' where id < 4;
select id, code, name from t1 order by id;
id	code	name
3	2	David
4	2	Erik
5	3	Sasha
6	3	Jeremy
7	4	Matt
8	1	Sinisa
12	1	Ralph
drop table t1;
CREATE TABLE t1 (
id int(11) NOT NULL auto_increment,
parent_id int(11) DEFAULT '0' NOT NULL,
level tinyint(4) DEFAULT '0' NOT NULL,
PRIMARY KEY (id),
KEY parent_id (parent_id),
KEY level (level)
) engine=bdb;
INSERT INTO t1 VALUES (1,0,0),(3,1,1),(4,1,1),(8,2,2),(9,2,2),(17,3,2),(22,4,2),(24,4,2),(28,5,2),(29,5,2),(30,5,2),(31,6,2),(32,6,2),(33,6,2),(203,7,2),(202,7,2),(20,3,2),(157,0,0),(193,5,2),(40,7,2),(2,1,1),(15,2,2),(6,1,1),(34,6,2),(35,6,2),(16,3,2),(7,1,1),(36,7,2),(18,3,2),(26,5,2),(27,5,2),(183,4,2),(38,7,2),(25,5,2),(37,7,2),(21,4,2),(19,3,2),(5,1,1),(179,5,2);
update t1 set parent_id=parent_id+100;
select * from t1 where parent_id=102;
id	parent_id	level
8	102	2
9	102	2
15	102	2
update t1 set id=id+1000;
update t1 set id=1024 where id=1009;
ERROR 23000: Duplicate entry '1024' for key 1
select * from t1;
id	parent_id	level
1001	100	0
1002	101	1
1003	101	1
1004	101	1
1005	101	1
1006	101	1
1007	101	1
1008	102	2
1009	102	2
1015	102	2
1016	103	2
1017	103	2
1018	103	2
1019	103	2
1020	103	2
1021	104	2
1022	104	2
1024	104	2
1025	105	2
1026	105	2
1027	105	2
1028	105	2
1029	105	2
1030	105	2
1031	106	2
1032	106	2
1033	106	2
1034	106	2
1035	106	2
1036	107	2
1037	107	2
1038	107	2
1040	107	2
1157	100	0
1179	105	2
1183	104	2
1193	105	2
1202	107	2
1203	107	2
update ignore t1 set id=id+1;
select * from t1;
id	parent_id	level
1001	100	0
1002	101	1
1003	101	1
1004	101	1
1005	101	1
1006	101	1
1007	101	1
1008	102	2
1010	102	2
1015	102	2
1016	103	2
1017	103	2
1018	103	2
1019	103	2
1020	103	2
1021	104	2
1023	104	2
1024	104	2
1025	105	2
1026	105	2
1027	105	2
1028	105	2
1029	105	2
1030	105	2
1031	106	2
1032	106	2
1033	106	2
1034	106	2
1035	106	2
1036	107	2
1037	107	2
1039	107	2
1041	107	2
1158	100	0
1180	105	2
1184	104	2
1194	105	2
1202	107	2
1204	107	2
update ignore t1 set id=1023 where id=1010;
select * from t1 where parent_id=102 order by parent_id,id;
id	parent_id	level
1008	102	2
1010	102	2
1015	102	2
explain select level from t1 where level=1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	level	level	1	const	6	Using index
explain select level,id from t1 where level=1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	level	level	1	const	6	Using index
explain select level,id,parent_id from t1 where level=1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	level	level	1	const	6	
select level,id from t1 where level=1;
level	id
1	1002
1	1003
1	1004
1	1005
1	1006
1	1007
select level,id,parent_id from t1 where level=1;
level	id	parent_id
1	1002	101
1	1003	101
1	1004	101
1	1005	101
1	1006	101
1	1007	101
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
show keys from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	0	PRIMARY	1	id	A	39	NULL	NULL		BTREE	
t1	1	parent_id	1	parent_id	A	9	NULL	NULL		BTREE	
t1	1	level	1	level	A	3	NULL	NULL		BTREE	
drop table t1;
CREATE TABLE t1 (
gesuchnr int(11) DEFAULT '0' NOT NULL,
benutzer_id int(11) DEFAULT '0' NOT NULL,
PRIMARY KEY (gesuchnr,benutzer_id)
) engine=BDB;
replace into t1 (gesuchnr,benutzer_id) values (2,1);
replace into t1 (gesuchnr,benutzer_id) values (1,1);
replace into t1 (gesuchnr,benutzer_id) values (1,1);
select * from t1;
gesuchnr	benutzer_id
1	1
2	1
drop table t1;
create table t1 (id int not null primary key, x int not null, key (x)) engine=bdb;
insert into t1 (id, x) values (1, 1);
replace into t1 (id, x) values (1, 2);
select * from t1;
id	x
1	2
drop table t1;
create table t1 (a int) engine=bdb;
insert into t1 values (1), (2);
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
delete from t1 where a = 1;
select * from t1;
a
2
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	note	The storage engine for the table doesn't support check
drop table t1;
create table t1 (a int,b varchar(20)) engine=bdb;
insert into t1 values (1,""), (2,"testing");
delete from t1 where a = 1;
select * from t1;
a	b
2	testing
create index skr on t1 (a);
insert into t1 values (3,""), (4,"testing");
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
show keys from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	1	skr	1	a	A	3	NULL	NULL	YES	BTREE	
drop table t1;
create table t1 (a int,b varchar(20),key(a)) engine=bdb;
insert into t1 values (1,""), (2,"testing");
select * from t1 where a = 1;
a	b
1	
drop table t1;
create table t1 (a char(10) not null, b int not null auto_increment, primary key(a,b)) engine=BDB;
insert into t1 values ("a",1),("b",2),("a",2),("c",1);
insert into t1 values ("a",NULL),("b",NULL),("c",NULL),("e",NULL);
insert into t1 (a) values ("a"),("b"),("c"),("d");
insert into t1 (a) values ('k'),('d');
insert into t1 (a) values ("a");
insert into t1 values ("d",last_insert_id());
select * from t1;
a	b
a	1
a	2
a	3
a	4
a	5
b	2
b	3
b	4
c	1
c	2
c	3
d	1
d	2
d	5
e	1
k	1
flush tables;
select count(*) from t1;
count(*)
16
drop table t1;
create table t1 (n int not null primary key) engine=bdb;
set autocommit=0;
insert into t1 values (4);
rollback;
select n, "after rollback" from t1;
n	after rollback
insert into t1 values (4);
commit;
select n, "after commit" from t1;
n	after commit
4	after commit
commit;
insert into t1 values (5);
insert into t1 values (4);
ERROR 23000: Duplicate entry '4' for key 1
commit;
select n, "after commit" from t1;
n	after commit
4	after commit
5	after commit
set autocommit=1;
insert into t1 values (6);
insert into t1 values (4);
ERROR 23000: Duplicate entry '4' for key 1
select n from t1;
n
4
5
6
rollback;
drop table t1;
create table t1 ( id int NOT NULL PRIMARY KEY, nom varchar(64)) engine=BDB;
begin;
insert into t1 values(1,'hamdouni');
select id as afterbegin_id,nom as afterbegin_nom from t1;
afterbegin_id	afterbegin_nom
1	hamdouni
rollback;
select id as afterrollback_id,nom as afterrollback_nom from t1;
afterrollback_id	afterrollback_nom
set autocommit=0;
insert into t1 values(2,'mysql');
select id as afterautocommit0_id,nom as afterautocommit0_nom from t1;
afterautocommit0_id	afterautocommit0_nom
2	mysql
rollback;
select id as afterrollback_id,nom as afterrollback_nom from t1;
afterrollback_id	afterrollback_nom
set autocommit=1;
drop table t1;
CREATE TABLE t1 (id char(8) not null primary key, val int not null) engine=bdb;
insert into t1 values ('pippo', 12);
insert into t1 values ('pippo', 12);
ERROR 23000: Duplicate entry 'pippo' for key 1
delete from t1;
delete from t1 where id = 'pippo';
select * from t1;
id	val
insert into t1 values ('pippo', 12);
set autocommit=0;
delete from t1;
rollback;
select * from t1;
id	val
pippo	12
delete from t1;
commit;
select * from t1;
id	val
drop table t1;
set autocommit=1;
CREATE TABLE t1 (ID INTEGER NOT NULL PRIMARY KEY, NAME VARCHAR(64)) ENGINE=BDB;
INSERT INTO t1 VALUES (1, 'Jochen');
select * from t1;
ID	NAME
1	Jochen
drop table t1;
CREATE TABLE t1 ( _userid VARCHAR(60) NOT NULL PRIMARY KEY) ENGINE=BDB;
set autocommit=0;
INSERT INTO t1  SET _userid='marc@anyware.co.uk';
COMMIT;
SELECT * FROM t1;
_userid
marc@anyware.co.uk
SELECT _userid FROM t1 WHERE _userid='marc@anyware.co.uk';
_userid
marc@anyware.co.uk
drop table t1;
set autocommit=1;
CREATE TABLE t1 (
user_id int(10) DEFAULT '0' NOT NULL,
name varchar(100),
phone varchar(100),
ref_email varchar(100) DEFAULT '' NOT NULL,
detail varchar(200),
PRIMARY KEY (user_id,ref_email)
)engine=bdb;
INSERT INTO t1 VALUES (10292,'sanjeev','29153373','sansh777@hotmail.com','xxx'),(10292,'shirish','2333604','shirish@yahoo.com','ddsds'),(10292,'sonali','323232','sonali@bolly.com','filmstar');
select * from t1 where user_id=10292;
user_id	name	phone	ref_email	detail
10292	sanjeev	29153373	sansh777@hotmail.com	xxx
10292	shirish	2333604	shirish@yahoo.com	ddsds
10292	sonali	323232	sonali@bolly.com	filmstar
INSERT INTO t1 VALUES (10291,'sanjeev','29153373','sansh777@hotmail.com','xxx'),(10293,'shirish','2333604','shirish@yahoo.com','ddsds');
select * from t1 where user_id=10292;
user_id	name	phone	ref_email	detail
10292	sanjeev	29153373	sansh777@hotmail.com	xxx
10292	shirish	2333604	shirish@yahoo.com	ddsds
10292	sonali	323232	sonali@bolly.com	filmstar
select * from t1 where user_id>=10292;
user_id	name	phone	ref_email	detail
10292	sanjeev	29153373	sansh777@hotmail.com	xxx
10292	shirish	2333604	shirish@yahoo.com	ddsds
10292	sonali	323232	sonali@bolly.com	filmstar
10293	shirish	2333604	shirish@yahoo.com	ddsds
select * from t1 where user_id>10292;
user_id	name	phone	ref_email	detail
10293	shirish	2333604	shirish@yahoo.com	ddsds
select * from t1 where user_id<10292;
user_id	name	phone	ref_email	detail
10291	sanjeev	29153373	sansh777@hotmail.com	xxx
drop table t1;
CREATE TABLE t1 (a int not null, b int not null,c int not null,
key(a),primary key(a,b), unique(c),key(a),unique(b));
show index from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	0	PRIMARY	1	a	A	NULL	NULL	NULL		BTREE	
t1	0	PRIMARY	2	b	A	0	NULL	NULL		BTREE	
t1	0	c	1	c	A	0	NULL	NULL		BTREE	
t1	0	b	1	b	A	0	NULL	NULL		BTREE	
t1	1	a	1	a	A	NULL	NULL	NULL		BTREE	
t1	1	a_2	1	a	A	NULL	NULL	NULL		BTREE	
drop table t1;
create table t1 (col1 int not null, col2 char(4) not null, primary key(col1));
alter table t1 engine=BDB;
insert into t1 values ('1','1'),('5','2'),('2','3'),('3','4'),('4','4');
select * from t1;
col1	col2
1	1
2	3
3	4
4	4
5	2
update t1 set col2='7' where col1='4';
select * from t1;
col1	col2
1	1
2	3
3	4
4	7
5	2
alter table t1 add co3 int not null;
select * from t1;
col1	col2	co3
1	1	0
2	3	0
3	4	0
4	7	0
5	2	0
update t1 set col2='9' where col1='2';
select * from t1;
col1	col2	co3
1	1	0
2	9	0
3	4	0
4	7	0
5	2	0
drop table t1;
create table t1 (a int not null , b int, primary key (a)) engine = BDB;
create table t2 (a int not null , b int, primary key (a)) engine = myisam;
insert into t1 VALUES (1,3) , (2,3), (3,3);
select * from t1;
a	b
1	3
2	3
3	3
insert into t2 select * from t1;
select * from t2;
a	b
1	3
2	3
3	3
delete from t1 where b = 3;
select * from t1;
a	b
insert into t1 select * from t2;
select * from t1;
a	b
1	3
2	3
3	3
select * from t2;
a	b
1	3
2	3
3	3
drop table t1,t2;
CREATE TABLE t1 (
id int(11) NOT NULL auto_increment,
ggid varchar(32) binary DEFAULT '' NOT NULL,
email varchar(64) DEFAULT '' NOT NULL,
passwd varchar(32) binary DEFAULT '' NOT NULL,
PRIMARY KEY (id),
UNIQUE ggid (ggid)
) ENGINE=BDB;
insert into t1 (ggid,passwd) values ('test1','xxx');
insert into t1 (ggid,passwd) values ('test2','yyy');
insert into t1 (ggid,passwd) values ('test2','this will fail');
ERROR 23000: Duplicate entry 'test2' for key 2
insert into t1 (ggid,id) values ('this will fail',1);
ERROR 23000: Duplicate entry '1' for key 1
select * from t1 where ggid='test1';
id	ggid	email	passwd
1	test1		xxx
select * from t1 where passwd='xxx';
id	ggid	email	passwd
1	test1		xxx
select * from t1 where id=2;
id	ggid	email	passwd
2	test2		yyy
replace into t1 (ggid,id) values ('this will work',1);
replace into t1 (ggid,passwd) values ('test2','this will work');
update t1 set id=100,ggid='test2' where id=1;
ERROR 23000: Duplicate entry 'test2' for key 2
select * from t1;
id	ggid	email	passwd
1	this will work		
3	test2		this will work
select * from t1 where id=1;
id	ggid	email	passwd
1	this will work		
select * from t1 where id=999;
id	ggid	email	passwd
drop table t1;
CREATE TABLE t1 (
user_name varchar(12),
password text,
subscribed char(1),
user_id int(11) DEFAULT '0' NOT NULL,
quota bigint(20),
weight double,
access_date date,
access_time time,
approved datetime,
dummy_primary_key int(11) NOT NULL auto_increment,
PRIMARY KEY (dummy_primary_key)
) ENGINE=BDB;
INSERT INTO t1 VALUES ('user_0','somepassword','N',0,0,0,'2000-09-07','23:06:59','2000-09-07 23:06:59',1);
INSERT INTO t1 VALUES ('user_1','somepassword','Y',1,1,1,'2000-09-07','23:06:59','2000-09-07 23:06:59',2);
INSERT INTO t1 VALUES ('user_2','somepassword','N',2,2,1.4142135623731,'2000-09-07','23:06:59','2000-09-07 23:06:59',3);
INSERT INTO t1 VALUES ('user_3','somepassword','Y',3,3,1.7320508075689,'2000-09-07','23:06:59','2000-09-07 23:06:59',4);
INSERT INTO t1 VALUES ('user_4','somepassword','N',4,4,2,'2000-09-07','23:06:59','2000-09-07 23:06:59',5);
select  user_name, password , subscribed, user_id, quota, weight, access_date, access_time, approved, dummy_primary_key from t1 order by user_name;
user_name	password	subscribed	user_id	quota	weight	access_date	access_time	approved	dummy_primary_key
user_0	somepassword	N	0	0	0	2000-09-07	23:06:59	2000-09-07 23:06:59	1
user_1	somepassword	Y	1	1	1	2000-09-07	23:06:59	2000-09-07 23:06:59	2
user_2	somepassword	N	2	2	1.4142135623731	2000-09-07	23:06:59	2000-09-07 23:06:59	3
user_3	somepassword	Y	3	3	1.7320508075689	2000-09-07	23:06:59	2000-09-07 23:06:59	4
user_4	somepassword	N	4	4	2	2000-09-07	23:06:59	2000-09-07 23:06:59	5
drop table t1;
CREATE TABLE t1 (
id int(11) NOT NULL auto_increment,
parent_id int(11) DEFAULT '0' NOT NULL,
level tinyint(4) DEFAULT '0' NOT NULL,
KEY (id),
KEY parent_id (parent_id),
KEY level (level)
) engine=bdb;
INSERT INTO t1 VALUES (1,0,0),(3,1,1),(4,1,1),(8,2,2),(9,2,2),(17,3,2),(22,4,2),(24,4,2),(28,5,2),(29,5,2),(30,5,2),(31,6,2),(32,6,2),(33,6,2),(203,7,2),(202,7,2),(20,3,2),(157,0,0),(193,5,2),(40,7,2),(2,1,1),(15,2,2),(6,1,1),(34,6,2),(35,6,2),(16,3,2),(7,1,1),(36,7,2),(18,3,2),(26,5,2),(27,5,2),(183,4,2),(38,7,2),(25,5,2),(37,7,2),(21,4,2),(19,3,2),(5,1,1);
INSERT INTO t1 values (179,5,2);
update t1 set parent_id=parent_id+100;
select * from t1 where parent_id=102;
id	parent_id	level
8	102	2
9	102	2
15	102	2
update t1 set id=id+1000;
update t1 set id=1024 where id=1009;
select * from t1;
id	parent_id	level
1001	100	0
1003	101	1
1004	101	1
1008	102	2
1024	102	2
1017	103	2
1022	104	2
1024	104	2
1028	105	2
1029	105	2
1030	105	2
1031	106	2
1032	106	2
1033	106	2
1203	107	2
1202	107	2
1020	103	2
1157	100	0
1193	105	2
1040	107	2
1002	101	1
1015	102	2
1006	101	1
1034	106	2
1035	106	2
1016	103	2
1007	101	1
1036	107	2
1018	103	2
1026	105	2
1027	105	2
1183	104	2
1038	107	2
1025	105	2
1037	107	2
1021	104	2
1019	103	2
1005	101	1
1179	105	2
update ignore t1 set id=id+1;
select * from t1;
id	parent_id	level
1002	100	0
1004	101	1
1005	101	1
1009	102	2
1025	102	2
1018	103	2
1023	104	2
1025	104	2
1029	105	2
1030	105	2
1031	105	2
1032	106	2
1033	106	2
1034	106	2
1204	107	2
1203	107	2
1021	103	2
1158	100	0
1194	105	2
1041	107	2
1003	101	1
1016	102	2
1007	101	1
1035	106	2
1036	106	2
1017	103	2
1008	101	1
1037	107	2
1019	103	2
1027	105	2
1028	105	2
1184	104	2
1039	107	2
1026	105	2
1038	107	2
1022	104	2
1020	103	2
1006	101	1
1180	105	2
update ignore t1 set id=1023 where id=1010;
select * from t1 where parent_id=102;
id	parent_id	level
1009	102	2
1025	102	2
1016	102	2
explain select level from t1 where level=1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	level	level	1	const	6	Using index
select level,id from t1 where level=1;
level	id
1	1004
1	1005
1	1003
1	1007
1	1008
1	1006
select level,id,parent_id from t1 where level=1;
level	id	parent_id
1	1004	101
1	1005	101
1	1003	101
1	1007	101
1	1008	101
1	1006	101
select level,id from t1 where level=1 order by id;
level	id
1	1003
1	1004
1	1005
1	1006
1	1007
1	1008
delete from t1 where level=1;
select * from t1;
id	parent_id	level
1002	100	0
1009	102	2
1025	102	2
1018	103	2
1023	104	2
1025	104	2
1029	105	2
1030	105	2
1031	105	2
1032	106	2
1033	106	2
1034	106	2
1204	107	2
1203	107	2
1021	103	2
1158	100	0
1194	105	2
1041	107	2
1016	102	2
1035	106	2
1036	106	2
1017	103	2
1037	107	2
1019	103	2
1027	105	2
1028	105	2
1184	104	2
1039	107	2
1026	105	2
1038	107	2
1022	104	2
1020	103	2
1180	105	2
drop table t1;
CREATE TABLE t1 (
sca_code char(6) NOT NULL,
cat_code char(6) NOT NULL,
sca_desc varchar(50),
lan_code char(2) NOT NULL,
sca_pic varchar(100),
sca_sdesc varchar(50),
sca_sch_desc varchar(16),
PRIMARY KEY (sca_code, cat_code, lan_code),
INDEX sca_pic (sca_pic)
) engine = bdb ;
INSERT INTO t1 ( sca_code, cat_code, sca_desc, lan_code, sca_pic, sca_sdesc, sca_sch_desc) VALUES ( 'PD', 'J', 'PENDANT', 'EN', NULL, NULL, 'PENDANT'),( 'RI', 'J', 'RING', 'EN', NULL, NULL, 'RING'),( 'QQ', 'N', 'RING', 'EN', 'not null', NULL, 'RING');
select count(*) from t1 where sca_code = 'PD';
count(*)
1
select count(*) from t1 where sca_code <= 'PD';
count(*)
1
select count(*) from t1 where sca_pic is null;
count(*)
2
alter table t1 drop index sca_pic, add index sca_pic (cat_code, sca_pic);
select count(*) from t1 where sca_code='PD' and sca_pic is null;
count(*)
1
select count(*) from t1 where cat_code='E';
count(*)
0
alter table t1 drop index sca_pic, add index (sca_pic, cat_code);
select count(*) from t1 where sca_code='PD' and sca_pic is null;
count(*)
1
select count(*) from t1 where sca_pic >= 'n';
count(*)
1
select sca_pic from t1 where sca_pic is null;
sca_pic
NULL
NULL
update t1 set sca_pic="test" where sca_pic is null;
delete from t1 where sca_code='pd';
drop table t1;
set @a:=now();
CREATE TABLE t1 (a int not null, b timestamp not null, primary key (a)) engine=bdb;
insert into t1 (a) values(1),(2),(3);
select t1.a from t1 natural join t1 as t2 where t1.b >= @a order by t1.a;
a
1
2
3
update t1 set a=5 where a=1;
select a from t1;
a
2
3
5
drop table t1;
flush logs;
create table t1 (b blob, i int, key (b(100)), key (i), key (i, b(20))) engine=bdb;
insert into t1 values ('this is a blob', 1), (null, -1), (null, null),("",1),("",2),("",3);
select b from t1 where b = 'this is a blob';
b
this is a blob
select * from t1 where b like 't%';
b	i
this is a blob	1
select b, i from t1 where b is not null;
b	i
this is a blob	1
	1
	2
	3
select * from t1 where b is null and i > 0;
b	i
select * from t1 where i is NULL;
b	i
NULL	NULL
update t1 set b='updated' where i=1;
select * from t1;
b	i
updated	1
NULL	-1
NULL	NULL
updated	1
	2
	3
drop table t1;
create table t1 (a varchar(100) not null, primary key(a), b int not null) engine=bdb;
insert into t1 values("hello",1),("world",2);
select * from t1 order by b desc;
a	b
world	2
hello	1
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
show keys from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	0	PRIMARY	1	a	A	2	NULL	NULL		BTREE	
drop table t1;
create table t1 (i int, j int )ENGINE=BDB;
insert into t1 values (1,2);
select * from t1 where i=1 and j=2;
i	j
1	2
create index ax1 on t1 (i,j);
select * from t1 where i=1 and j=2;
i	j
1	2
drop table t1;
create table t1
(
branch_id	int		auto_increment	primary key,
branch_name	varchar(255)	not null,
branch_active	int		not null 	default 1,
unique  branch_name(branch_name),
index	branch_active(branch_active)
) engine=bdb;
create table t2
(
target_id	int		auto_increment	primary key,
target_name	varchar(255)	not null,
target_active	int		not null 	default 1,
unique	target_name(target_name),
index	target_active(target_active)
) engine=bdb;
create table t3
(
platform_id	int		auto_increment	primary key,
platform_name	varchar(255)	not null,
platform_active	int		not null 	default 1,
unique	platform_name(platform_name),
index	platform_active(platform_active)
) engine=bdb;
create table t4
(
product_id	int		auto_increment	primary key,
product_name	varchar(255)	not null,
version_file	varchar(255)	not null,
product_active	int		not null 	default 1,
unique	product_name(product_name),
index	product_active(product_active)
) engine=bdb;
create table t5
(
product_file_id		int		auto_increment	primary key,
product_id		int		not null,
file_name		varchar(255)	not null,
/* cvs module used to find the file version */
module_name		varchar(255)	not null,
/* flag whether the file is still included in the product */
file_included		int		not null	default 1,
unique	product_file(product_id,file_name),
index	file_included(file_included)
) engine=bdb;
create table t6
(
file_platform_id	int		auto_increment	primary key,
product_file_id		int		not null,
platform_id		int		not null,
branch_id		int		not null,
/* filename in the build system */
build_filename		varchar(255)	not null,
/* default filename in the build archive */
archive_filename	varchar(255)	not null,
unique  file_platform(product_file_id,platform_id,branch_id)
) engine=bdb;
create table t8
(
archive_id	int		auto_increment	primary key,
branch_id	int		not null,
target_id	int		not null,
platform_id	int		not null,
product_id	int		not null,
status_id	int		not null	default 1,
unique  archive(branch_id,target_id,platform_id,product_id),
index	status_id(status_id)
) engine=bdb;
create table t7
(
build_id	int		auto_increment	primary key,
branch_id	int		not null,
target_id	int		not null,
build_number	int		not null,
build_date	date		not null,
/* build system tag, e.g. 'rmanight-022301-1779' */
build_tag	varchar(255)	not null,	
/* path relative to the build archive root, e.g. 'current' */
build_path	text		not null,	
unique  build(branch_id,target_id,build_number)
) engine=bdb;
insert into t1 (branch_name)
values ('RealMedia');
insert into t1 (branch_name)
values ('RP8REV');
insert into t1 (branch_name)
values ('SERVER_8_0_GOLD');
insert into t2 (target_name)
values ('rmanight');
insert into t2 (target_name)
values ('playerall');
insert into t2 (target_name)
values ('servproxyall');
insert into t3 (platform_name)
values ('linux-2.0-libc6-i386');
insert into t3 (platform_name)
values ('win32-i386');
insert into t4 (product_name, version_file)
values ('realserver', 'servinst');
insert into t4 (product_name, version_file)
values ('realproxy', 'prxyinst');
insert into t4 (product_name, version_file)
values ('realplayer', 'playinst');
insert into t4 (product_name, version_file)
values ('plusplayer', 'plusinst');
create temporary table tmp1
select branch_id, target_id, platform_id, product_id
from t1, t2, t3, t4 ;
create temporary table tmp2 
select tmp1.branch_id, tmp1.target_id, tmp1.platform_id, tmp1.product_id 
from tmp1 left join t8 
using (branch_id,target_id,platform_id,product_id) 
where t8.archive_id is null ;
insert into t8 
(branch_id, target_id, platform_id, product_id, status_id)
select branch_id, target_id, platform_id, product_id, 1
from tmp2 ;
drop table tmp1 ;
drop table tmp2 ;
insert into t5 (product_id, file_name, module_name)
values (1, 'servinst', 'server');
insert into t5 (product_id, file_name, module_name)
values (2, 'prxyinst', 'server');
insert into t5 (product_id, file_name, module_name)
values (3, 'playinst', 'rpapp');
insert into t5 (product_id, file_name, module_name)
values (4, 'plusinst', 'rpapp');
insert into t6 
(product_file_id,platform_id,branch_id,build_filename,archive_filename)
values (1, 2, 3, 'servinst.exe', 'win32-servinst.exe');
insert into t6 
(product_file_id,platform_id,branch_id,build_filename,archive_filename)
values (1, 1, 3, 'v80_linux-2.0-libc6-i386_servinst.bin', 'linux2-servinst.exe');
insert into t6 
(product_file_id,platform_id,branch_id,build_filename,archive_filename)
values (3, 2, 2, 'playinst.exe', 'win32-playinst.exe');
insert into t6 
(product_file_id,platform_id,branch_id,build_filename,archive_filename)
values (4, 2, 2, 'playinst.exe', 'win32-playinst.exe');
insert into t7 
(branch_id,target_id,build_number,build_tag,build_date,build_path)
values (2, 2, 1071, 'playerall-022101-1071', '2001-02-21', 'current');
insert into t7 
(branch_id,target_id,build_number,build_tag,build_date,build_path)
values (2, 2, 1072, 'playerall-022201-1072', '2001-02-22', 'current');
insert into t7 
(branch_id,target_id,build_number,build_tag,build_date,build_path)
values (3, 3, 388, 'servproxyall-022201-388', '2001-02-22', 'current');
insert into t7 
(branch_id,target_id,build_number,build_tag,build_date,build_path)
values (3, 3, 389, 'servproxyall-022301-389', '2001-02-23', 'current');
insert into t7 
(branch_id,target_id,build_number,build_tag,build_date,build_path)
values (4, 4, 100, 'foo target-010101-100', '2001-01-01', 'current');
update t8
set status_id=2
where branch_id=2 and target_id=2 and platform_id=2 and product_id=1;
select t7.build_path
from 
t1, 
t7, 
t2, 
t3, 
t4,
t5, 
t6
where 
t7.branch_id = t1.branch_id and 
t7.target_id = t2.target_id and 
t5.product_id = t4.product_id and
t6.product_file_id = t5.product_file_id and
t6.platform_id = t3.platform_id and
t6.branch_id = t6.branch_id and
t7.build_id = 1 and
t4.product_id = 3 and
t5.file_name = 'playinst' and
t3.platform_id = 2;
build_path
current
drop table t1, t2, t3, t4, t5, t6, t7, t8;
CREATE TABLE t1 (
a tinytext NOT NULL,
b tinyint(3) unsigned NOT NULL default '0',
PRIMARY KEY (a(32),b)
) ENGINE=BDB;
INSERT INTO t1 VALUES ('a',1),('a',2);
SELECT * FROM t1 WHERE a='a' AND b=2;
a	b
a	2
SELECT * FROM t1 WHERE a='a' AND b in (2);
a	b
a	2
SELECT * FROM t1 WHERE a='a' AND b in (1,2);
a	b
a	1
a	2
drop table t1;
CREATE TABLE t1 (
a int3 unsigned NOT NULL,
b int1 unsigned NOT NULL,
UNIQUE (a, b)
) ENGINE = BDB;
INSERT INTO t1 VALUES (1, 1);
SELECT MIN(B),MAX(b) FROM t1 WHERE t1.a = 1;
MIN(B)	MAX(b)
1	1
drop table t1;
create table t1 (id int NOT NULL,id2 int NOT NULL,id3 int NOT NULL,dummy1 char(30),primary key (id,id2),index index_id3 (id3)) engine=bdb;
insert into t1 values (0,0,0,'ABCDEFGHIJ'),(2,2,2,'BCDEFGHIJK'),(1,1,1,'CDEFGHIJKL');
LOCK TABLES t1 WRITE;
insert into t1 values (99,1,2,'D'),(1,1,2,'D');
ERROR 23000: Duplicate entry '1-1' for key 1
select id from t1;
id
0
1
2
select id from t1;
id
0
1
2
UNLOCK TABLES;
DROP TABLE t1;
create table t1 (id int NOT NULL,id2 int NOT NULL,id3 int NOT NULL,dummy1 char(30),primary key (id,id2),index index_id3 (id3)) engine=bdb;
insert into t1 values (0,0,0,'ABCDEFGHIJ'),(2,2,2,'BCDEFGHIJK'),(1,1,1,'CDEFGHIJKL');
LOCK TABLES t1 WRITE;
begin;
insert into t1 values (99,1,2,'D'),(1,1,2,'D');
ERROR 23000: Duplicate entry '1-1' for key 1
select id from t1;
id
0
1
2
insert ignore into t1 values (100,1,2,'D'),(1,1,99,'D');
commit;
select id,id3 from t1;
id	id3
0	0
1	1
2	2
100	2
UNLOCK TABLES;
DROP TABLE t1;
CREATE TABLE t1 (SYAIN_NO char(5) NOT NULL default '', KINMU_DATE char(6) NOT NULL default '', PRIMARY KEY  (SYAIN_NO,KINMU_DATE)) ENGINE=BerkeleyDB;
CREATE TABLE t2 ( SYAIN_NO char(5) NOT NULL default '',STR_DATE char(8) NOT NULL default '',PRIMARY KEY  (SYAIN_NO,STR_DATE) ) ENGINE=BerkeleyDB;
select T1.KINMU_DATE from t1 T1 ,t2 T2 where  T1.SYAIN_NO = '12345' and T1.KINMU_DATE = '200106' and T2.SYAIN_NO = T1.SYAIN_NO;
KINMU_DATE
select T1.KINMU_DATE from t1 T1 ,t2 T2 where  T1.SYAIN_NO = '12345' and T1.KINMU_DATE = '200106' and T2.SYAIN_NO = T1.SYAIN_NO;
KINMU_DATE
DROP TABLE t1,t2;
create table t1 (a int(11) not null, b int(11) not null, unique (a,b)) engine=bdb;
insert into t1 values (1,1), (1,2);
select * from t1 where a = 1;
a	b
1	1
1	2
select t1.*, t2.* from t1, t1 t2 where t1.a = t2.a and t2.a = 1;
a	b	a	b
1	1	1	1
1	1	1	2
1	2	1	1
1	2	1	2
select * from t1 where a = 1;
a	b
1	1
1	2
drop table t1;
create table t1 (id int NOT NULL,id2 int NOT NULL,id3 int NOT NULL,dummy1 char(30),primary key (id,id2),index index_id3 (id3)) engine=bdb;
insert into t1 values (0,0,0,'ABCDEFGHIJ');
create table t2 (id int NOT NULL,primary key (id)) engine=bdb;
LOCK TABLES t1 WRITE, t2 WRITE;
insert into t2 values(1);
SELECT t1.* FROM t1 WHERE id IN (1);
id	id2	id3	dummy1
SELECT t1.* FROM t2 left outer join t1 on (t1.id=t2.id);
id	id2	id3	dummy1
NULL	NULL	NULL	NULL
delete from t1 where id3 >= 0 and id3 <= 0;
drop table t1,t2;
CREATE TABLE t1 (i varchar(48) NOT NULL default '', p varchar(255) default NULL,s varchar(48) NOT NULL default '', PRIMARY KEY  (i), UNIQUE(p,s)) ENGINE=BDB;
INSERT INTO t1 VALUES ('00000000-e6c4ddeaa6-003b8-83458387','programs/xxxxxxxx.wmv','00000000-e6c4ddeb32-003bc-83458387');
SELECT * FROM t1 WHERE p='programs/xxxxxxxx.wmv';
i	p	s
00000000-e6c4ddeaa6-003b8-83458387	programs/xxxxxxxx.wmv	00000000-e6c4ddeb32-003bc-83458387
drop table t1;
CREATE TABLE t1 ( STR_DATE varchar(8) NOT NULL default '',INFO_NOTE varchar(200) default NULL,PRIMARY KEY  (STR_DATE) ) ENGINE=BerkeleyDB;
select INFO_NOTE from t1 where STR_DATE = '20010610';
INFO_NOTE
select INFO_NOTE from t1 where STR_DATE < '20010610';
INFO_NOTE
select INFO_NOTE from t1 where STR_DATE > '20010610';
INFO_NOTE
drop table t1;
create table t1 (a int not null, b int, primary key (a)) engine =bdb;
create table t2 (a int not null, b int, primary key (a)) engine =bdb;
insert into t1 values (2, 3),(1, 7),(10, 7);
insert into t2 values (2, 3),(1, 7),(10, 7);
select * from t1;
a	b
1	7
2	3
10	7
select * from t2;
a	b
1	7
2	3
10	7
delete t1, t2 from t1, t2 where t1.a = t2.a;
select * from t1;
a	b
select * from t2;
a	b
select * from t2;
a	b
drop table t1,t2;
create table t1  (x int not null, index(x)) engine=bdb;
insert into t1 values (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);
select * from t1 where x <= 10 and x >= 7;
x
7
8
9
10
select * from t1 where x <= 10 and x >= 7 order by x;
x
7
8
9
10
select * from t1 where x <= 10 and x >= 7 order by x desc;
x
10
9
8
7
select * from t1 where x <= 8 and x >= 5 order by x desc;
x
8
7
6
5
select * from t1 where x < 8 and x > 5 order by x desc;
x
7
6
drop table t1;
create table t1 ( c char(8) not null ) engine=bdb;
insert into t1 values ('0'),('1'),('2'),('3'),('4'),('5'),('6'),('7'),('8'),('9');
insert into t1 values ('A'),('B'),('C'),('D'),('E'),('F');
alter table t1 add b char(8) not null;
alter table t1 add a char(8) not null;
alter table t1 add primary key (a,b,c);
update t1 set a=c, b=c;
create table t2 (c char(8) not null, b char(8) not null, a char(8) not null, primary key(a,b,c)) engine=bdb;
insert into t2 select * from t1;
delete t1,t2 from t2,t1 where t1.a<'B' and t2.b=t1.b;
drop table t1,t2;
create table t1 (a char(10), key(a), b int not null, key(b)) engine=bdb;
insert into t1 values ('a',1),('A',2);
explain select a from t1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	
select a from t1;
a
a
A
explain select b from t1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	index	NULL	b	4	NULL	2	Using index
select b from t1;
b
1
2
alter table t1 modify a char(10) binary;
explain select a from t1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	index	NULL	a	11	NULL	2	Using index
select a from t1;
a
A
a
drop table t1;
create table t1(
pk1 text not null, pk2 text not null, pk3 char(4),
key1 int, key2 int,
primary key(pk1(4), pk2(4), pk3), key(key1), key(key2)
) engine=bdb;
insert into t1 values (concat('aaa-', repeat('A', 4000)),
concat('eee-', repeat('e', 4000)), 'a++a', 1, 1);
insert into t1 values (concat('bbb-', repeat('B', 4000)),
concat('ggg-', repeat('G', 4000)), 'b++b', 1, 1);
select substring(pk1, 1, 4), substring(pk1, 4001),
substring(pk2, 1, 4), substring(pk2, 4001), pk3, key1, key2
from t1 force index(key1, key2) where key1 < 3 or key2 < 3;
substring(pk1, 1, 4)	substring(pk1, 4001)	substring(pk2, 1, 4)	substring(pk2, 4001)	pk3	key1	key2
aaa-	AAAA	eee-	eeee	a++a	1	1
bbb-	BBBB	ggg-	GGGG	b++b	1	1
drop table t1;
create table t1 (
pk1 varchar(8) not null default '',
pk2 varchar(4) not null default '',
key1 int(11) default null,
key2 int(11) default null,
primary key  (pk1,pk2),
key key1 (key1),
key key2 (key2)) engine=bdb;
insert into t1 values ('','empt',2,2),  ('a','a--a',2,2),
('bb','b--b',2,2),  ('ccc','c--c',2,2),  ('dddd','d--d',2,2);
select * from t1 force index(key1, key2) where key1 < 3 or key2 < 3;
pk1	pk2	key1	key2
	empt	2	2
a	a--a	2	2
bb	b--b	2	2
ccc	c--c	2	2
dddd	d--d	2	2
drop table t1;
set autocommit=0;
create table t1(b varchar(30)) engine=bdb;
insert into t1 values ('one');
commit;
select b FROM t1 outer_table where
exists (select 'two' from t1 where 'two' = outer_table.b);
b
drop table t1;
set autocommit=1;
create table t1(a int primary key, b varchar(30)) engine=bdb;
insert into t1 values (1,'one'), (2,'two'), (3,'three'), (4,'four');
create table t2 like t1;
insert t2 select * from t1;
select a from t1 where a in (select a from t2);
a
1
2
3
4
delete from t2;
insert into t2 (a, b)
select a, b from t1 where (a, b) in (select a, b from t1);
select * from t2;
a	b
1	one
2	two
3	three
4	four
drop table t1, t2;
create table t1 (a int, b varchar(30), primary key(a)) engine = bdb;
insert into t1 values (1,'one');
commit;
truncate t1;
select * from t1;
a	b
drop table t1;
SET NAMES utf8;
create table t1 (a varchar(255) character set utf8) engine=bdb;
set @a:= convert(repeat(_latin1 0xFF, 255) using utf8);
insert into t1 values (@a);
select a, length(a), char_length(a) from t1;
a	length(a)	char_length(a)
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ	510	255
drop table t1;
SET NAMES latin1;
CREATE TABLE t1 (
id       int unsigned NOT NULL auto_increment,
list_id  smallint unsigned NOT NULL,
term     TEXT NOT NULL,
PRIMARY KEY(id),
INDEX(list_id, term(4))
) ENGINE=BDB CHARSET=utf8;
INSERT INTO t1 SET list_id = 1, term = "letterc";
INSERT INTO t1 SET list_id = 1, term = "letterb";
INSERT INTO t1 SET list_id = 1, term = "lettera";
INSERT INTO t1 SET list_id = 1, term = "letterd";
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "letterc");
id
1
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "letterb");
id
2
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "lettera");
id
3
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "letterd");
id
4
DROP TABLE t1;
set storage_engine=bdb;
drop table if exists t1,t2,t3;
--- Testing varchar ---
--- Testing varchar ---
create table t1 (v varchar(10), c char(10), t text);
insert into t1 values('+ ', '+ ', '+ ');
set @a=repeat(' ',20);
insert into t1 values (concat('+',@a),concat('+',@a),concat('+',@a));
Warnings:
Warning	1265	Data truncated for column 'v' at row 1
select concat('*',v,'*',c,'*',t,'*') from t1;
concat('*',v,'*',c,'*',t,'*')
*+ *+*+ *
*+         *+*+                    *
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL,
  `t` text
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
create table t2 like t1;
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL,
  `t` text
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
create table t3 select * from t1;
show create table t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL,
  `t` text
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
alter table t1 modify c varchar(10);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` varchar(10) default NULL,
  `c` varchar(10) default NULL,
  `t` text
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
alter table t1 modify v char(10);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` char(10) default NULL,
  `c` varchar(10) default NULL,
  `t` text
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
alter table t1 modify t varchar(10);
Warnings:
Warning	1265	Data truncated for column 't' at row 2
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` char(10) default NULL,
  `c` varchar(10) default NULL,
  `t` varchar(10) default NULL
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
select concat('*',v,'*',c,'*',t,'*') from t1;
concat('*',v,'*',c,'*',t,'*')
*+*+*+ *
*+*+*+         *
drop table t1,t2,t3;
create table t1 (v varchar(10), c char(10), t text, key(v), key(c), key(t(10)));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL,
  `t` text,
  KEY `v` (`v`),
  KEY `c` (`c`),
  KEY `t` (`t`(10))
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
select count(*) from t1;
count(*)
270
insert into t1 values(concat('a',char(1)),concat('a',char(1)),concat('a',char(1)));
select count(*) from t1 where v='a';
count(*)
10
select count(*) from t1 where c='a';
count(*)
10
select count(*) from t1 where t='a';
count(*)
10
select count(*) from t1 where v='a  ';
count(*)
10
select count(*) from t1 where c='a  ';
count(*)
10
select count(*) from t1 where t='a  ';
count(*)
10
select count(*) from t1 where v between 'a' and 'a ';
count(*)
10
select count(*) from t1 where v between 'a' and 'a ' and v between 'a  ' and 'b\n';
count(*)
10
select count(*) from t1 where v like 'a%';
count(*)
11
select count(*) from t1 where c like 'a%';
count(*)
11
select count(*) from t1 where t like 'a%';
count(*)
11
select count(*) from t1 where v like 'a %';
count(*)
9
explain select count(*) from t1 where v='a  ';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	v	v	13	const	10	Using where
explain select count(*) from t1 where c='a  ';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	c	c	11	const	10	Using where
explain select count(*) from t1 where t='a  ';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	range	t	t	13	NULL	10	Using where
explain select count(*) from t1 where v like 'a%';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	range	v	v	13	NULL	11	Using where
explain select count(*) from t1 where v between 'a' and 'a ';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	range	v	v	13	NULL	10	Using where
explain select count(*) from t1 where v between 'a' and 'a ' and v between 'a  ' and 'b\n';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	range	v	v	13	NULL	10	Using where
alter table t1 add unique(v);
ERROR 23000: Duplicate entry '{ ' for key 1
alter table t1 add key(v);
select concat('*',v,'*',c,'*',t,'*') as qq from t1 where v='a';
qq
*a*a*a*
*a *a*a *
*a  *a*a  *
*a   *a*a   *
*a    *a*a    *
*a     *a*a     *
*a      *a*a      *
*a       *a*a       *
*a        *a*a        *
*a         *a*a         *
explain select * from t1 where v='a';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	v,v_2	v	13	const	10	Using where
select v,count(*) from t1 group by v limit 10;
v	count(*)
a
	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select v,count(t) from t1 group by v limit 10;
v	count(t)
a
	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select v,count(c) from t1 group by v limit 10;
v	count(c)
a
	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select sql_big_result v,count(t) from t1 group by v limit 10;
v	count(t)
a
	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select sql_big_result v,count(c) from t1 group by v limit 10;
v	count(c)
a
	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select c,count(*) from t1 group by c limit 10;
c	count(*)
a
	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select c,count(t) from t1 group by c limit 10;
c	count(t)
a
	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select sql_big_result c,count(t) from t1 group by c limit 10;
c	count(t)
a
	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select t,count(*) from t1 group by t limit 10;
t	count(*)
a
	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select t,count(t) from t1 group by t limit 10;
t	count(t)
a
	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select sql_big_result t,count(t) from t1 group by t limit 10;
t	count(t)
a
	1
a         	10
b         	10
c         	10
d         	10
e         	10
f         	10
g         	10
h         	10
i         	10
drop table t1;
create table t1 (a char(10), unique (a));
insert into t1 values ('a   ');
insert into t1 values ('a ');
ERROR 23000: Duplicate entry 'a' for key 1
alter table t1 modify a varchar(10);
insert into t1 values ('a '),('a  '),('a   '),('a         ');
ERROR 23000: Duplicate entry 'a ' for key 1
insert into t1 values ('a     ');
ERROR 23000: Duplicate entry 'a     ' for key 1
insert into t1 values ('a          ');
ERROR 23000: Duplicate entry 'a         ' for key 1
insert into t1 values ('a ');
ERROR 23000: Duplicate entry 'a ' for key 1
update t1 set a='a  ' where a like 'a%';
select concat(a,'.') from t1;
concat(a,'.')
a  .
update t1 set a='abc    ' where a like 'a ';
select concat(a,'.') from t1;
concat(a,'.')
a  .
update t1 set a='a      ' where a like 'a %';
select concat(a,'.') from t1;
concat(a,'.')
a      .
update t1 set a='a  ' where a like 'a      ';
select concat(a,'.') from t1;
concat(a,'.')
a  .
drop table t1;
create table t1 (v varchar(10), c char(10), t text, key(v(5)), key(c(5)), key(t(5)));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL,
  `t` text,
  KEY `v` (`v`(5)),
  KEY `c` (`c`(5)),
  KEY `t` (`t`(5))
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
drop table t1;
create table t1 (v char(10) character set utf8);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` char(10) character set utf8 default NULL
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
drop table t1;
create table t1 (v varchar(10), c char(10)) row_format=fixed;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1 ROW_FORMAT=FIXED
insert into t1 values('a','a'),('a ','a ');
select concat('*',v,'*',c,'*') from t1;
concat('*',v,'*',c,'*')
*a*a*
*a *a*
drop table t1;
create table t1 (v varchar(65530), key(v(10)));
insert into t1 values(repeat('a',65530));
select length(v) from t1 where v=repeat('a',65530);
length(v)
65530
drop table t1;
create table t1 (v varchar(65530), key(v));
Warnings:
Warning	1071	Specified key was too long; max key length is 255 bytes
drop table if exists t1;
create table t1 (v varchar(65536));
Warnings:
Note	1246	Converting column 'v' from VARCHAR to TEXT
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` mediumtext
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
drop table t1;
create table t1 (v varchar(65530) character set utf8);
Warnings:
Note	1246	Converting column 'v' from VARCHAR to TEXT
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` mediumtext character set utf8
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
drop table t1;
set storage_engine=MyISAM;