config root man

drop table if exists t1,t2;
create table t1 (a int auto_increment , primary key (a));
insert into t1 values (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL);
update t1 set a=a+10 where a > 34;
update t1 set a=a+100 where a > 0;
update t1 set a=a+100 where a=1 and a=2;
update t1 set a=b+100 where a=1 and a=2;
ERROR 42S22: Unknown column 'b' in 'field list'
update t1 set a=b+100 where c=1 and a=2;
ERROR 42S22: Unknown column 'c' in 'where clause'
update t1 set d=a+100 where a=1;
ERROR 42S22: Unknown column 'd' in 'field list'
select * from t1;
a
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
145
146
drop table t1;
CREATE TABLE t1
(
place_id int (10) unsigned NOT NULL,
shows int(10) unsigned DEFAULT '0' NOT NULL,
ishows int(10) unsigned DEFAULT '0' NOT NULL,
ushows int(10) unsigned DEFAULT '0' NOT NULL,
clicks int(10) unsigned DEFAULT '0' NOT NULL,
iclicks int(10) unsigned DEFAULT '0' NOT NULL,
uclicks int(10) unsigned DEFAULT '0' NOT NULL,
ts timestamp,
PRIMARY KEY (place_id,ts)
);
INSERT INTO t1 (place_id,shows,ishows,ushows,clicks,iclicks,uclicks,ts)
VALUES (1,0,0,0,0,0,0,20000928174434);
UPDATE t1 SET shows=shows+1,ishows=ishows+1,ushows=ushows+1,clicks=clicks+1,iclicks=iclicks+1,uclicks=uclicks+1 WHERE place_id=1 AND ts>="2000-09-28 00:00:00";
select place_id,shows from t1;
place_id	shows
1	1
drop table t1;
CREATE TABLE t1 (
lfdnr int(10) unsigned NOT NULL default '0',
ticket int(10) unsigned NOT NULL default '0',
client varchar(255) NOT NULL default '',
replyto varchar(255) NOT NULL default '',
subject varchar(100) NOT NULL default '',
timestamp int(10) unsigned NOT NULL default '0',
tstamp timestamp NOT NULL,
status int(3) NOT NULL default '0',
type varchar(15) NOT NULL default '',
assignment int(10) unsigned NOT NULL default '0',
fupcount int(4) unsigned NOT NULL default '0',
parent int(10) unsigned NOT NULL default '0',
activity int(10) unsigned NOT NULL default '0',
priority tinyint(1) unsigned NOT NULL default '1',
cc varchar(255) NOT NULL default '',
bcc varchar(255) NOT NULL default '',
body text NOT NULL,
comment text,
header text,
PRIMARY KEY  (lfdnr),
KEY k1 (timestamp),
KEY k2 (type),
KEY k3 (parent),
KEY k4 (assignment),
KEY ticket (ticket)
) ENGINE=MyISAM;
INSERT INTO t1 VALUES (773,773,'','','',980257344,20010318180652,0,'Open',10,0,0,0,1,'','','','','');
alter table t1 change lfdnr lfdnr int(10) unsigned not null auto_increment;
update t1 set status=1 where type='Open';
select status from t1;
status
1
drop table t1;
create table t1 (a int not null, b int not null, key (a));
insert into t1 values (1,1),(1,2),(1,3),(3,1),(3,2),(3,3),(3,1),(3,2),(3,3),(2,1),(2,2),(2,3);
SET @tmp=0;
update t1 set b=(@tmp:=@tmp+1) order by a;
update t1 set b=99 where a=1 order by b asc limit 1;
select * from t1 order by a,b;
a	b
1	2
1	3
1	99
2	4
2	5
2	6
3	7
3	8
3	9
3	10
3	11
3	12
update t1 set b=100 where a=1 order by b desc limit 2;
update t1 set a=a+10+b where a=1 order by b;
select * from t1 order by a,b;
a	b
2	4
2	5
2	6
3	7
3	8
3	9
3	10
3	11
3	12
13	2
111	100
111	100
create table t2 (a int not null, b int not null);
insert into t2 values (1,1),(1,2),(1,3);
update t1 set b=(select distinct 1 from (select * from t2) a);
drop table t1,t2;
CREATE TABLE t1 (
`id_param` smallint(3) unsigned NOT NULL default '0',
`nom_option` char(40) NOT NULL default '',
`valid` tinyint(1) NOT NULL default '0',
KEY `id_param` (`id_param`,`nom_option`)
) ENGINE=MyISAM;
INSERT INTO t1 (id_param,nom_option,valid) VALUES (185,'600x1200',1);
UPDATE t1 SET nom_option='test' WHERE id_param=185 AND nom_option='600x1200' AND valid=1 LIMIT 1;
select * from t1;
id_param	nom_option	valid
185	test	1
drop table t1;
create table t1 (F1 VARCHAR(30), F2 VARCHAR(30), F3 VARCHAR(30), cnt int, groupid int, KEY groupid_index (groupid));
insert into t1 (F1,F2,F3,cnt,groupid) values ('0','0','0',1,6),
('0','1','2',1,5), ('0','2','0',1,3), ('1','0','1',1,2),
('1','2','1',1,1), ('1','2','2',1,1), ('2','0','1',2,4),
('2','2','0',1,7);
delete from m1 using t1 m1,t1 m2 where m1.groupid=m2.groupid and (m1.cnt < m2.cnt or m1.cnt=m2.cnt and m1.F3>m2.F3);
select * from t1;
F1	F2	F3	cnt	groupid
0	0	0	1	6
0	1	2	1	5
0	2	0	1	3
1	0	1	1	2
1	2	1	1	1
2	0	1	2	4
2	2	0	1	7
drop table t1;
CREATE TABLE t1 ( 
`colA` int(10) unsigned NOT NULL auto_increment,
`colB` int(11) NOT NULL default '0',
PRIMARY KEY  (`colA`)
);
INSERT INTO t1 VALUES (4433,5424);
CREATE TABLE t2 (
`colC` int(10) unsigned NOT NULL default '0',
`colA` int(10) unsigned NOT NULL default '0',
`colD` int(10) unsigned NOT NULL default '0',
`colE` int(10) unsigned NOT NULL default '0',
`colF` int(10) unsigned NOT NULL default '0',
PRIMARY KEY  (`colC`,`colA`,`colD`,`colE`)
);
INSERT INTO t2 VALUES (3,4433,10005,495,500);
INSERT INTO t2 VALUES (3,4433,10005,496,500);
INSERT INTO t2 VALUES (3,4433,10009,494,500);
INSERT INTO t2 VALUES (3,4433,10011,494,500);
INSERT INTO t2 VALUES (3,4433,10005,497,500);
INSERT INTO t2 VALUES (3,4433,10013,489,500);
INSERT INTO t2 VALUES (3,4433,10005,494,500);
INSERT INTO t2 VALUES (3,4433,10005,493,500);
INSERT INTO t2 VALUES (3,4433,10005,492,500);
UPDATE IGNORE t2,t1 set t2.colE = t2.colE + 1,colF=0 WHERE t1.colA = t2.colA AND (t1.colB & 4096) > 0 AND (colE + 1) < colF;
Warnings:
Warning	1062	Duplicate entry '3-4433-10005-496' for key 'PRIMARY'
Warning	1062	Duplicate entry '3-4433-10005-497' for key 'PRIMARY'
Warning	1062	Duplicate entry '3-4433-10005-495' for key 'PRIMARY'
Warning	1062	Duplicate entry '3-4433-10005-494' for key 'PRIMARY'
Warning	1062	Duplicate entry '3-4433-10005-493' for key 'PRIMARY'
SELECT * FROM t2;
colC	colA	colD	colE	colF
3	4433	10005	495	500
3	4433	10005	496	500
3	4433	10009	495	0
3	4433	10011	495	0
3	4433	10005	498	0
3	4433	10013	490	0
3	4433	10005	494	500
3	4433	10005	493	500
3	4433	10005	492	500
DROP TABLE t1;
DROP TABLE t2;
create table t1 (c1 int, c2 char(6), c3 int);
create table t2 (c1 int, c2 char(6));
insert into t1 values (1, "t1c2-1", 10), (2, "t1c2-2", 20);
update t1 left join t2 on t1.c1 = t2.c1 set t2.c2 = "t2c2-1";
update t1 left join t2 on t1.c1 = t2.c1 set t2.c2 = "t2c2-1" where t1.c3 = 10;
drop table t1, t2;
create table t1 (id int not null auto_increment primary key, id_str varchar(32));
insert into t1 (id_str) values ("test");
update t1 set id_str = concat(id_str, id) where id = last_insert_id();
select * from t1;
id	id_str
1	test1
drop table t1;
create table t1 (a int, b char(255), key(a, b(20)));
insert into t1 values (0, '1');
update t1 set b = b + 1 where a = 0;
select * from t1;
a	b
0	2
drop table t1;
create table t1 (a int, b varchar(10), key b(b(5))) engine=myisam;
create table t2 (a int, b varchar(10)) engine=myisam;
insert into t1 values ( 1, 'abcd1e');
insert into t1 values ( 2, 'abcd2e');
insert into t2 values ( 1, 'abcd1e');
insert into t2 values ( 2, 'abcd2e');
analyze table t1,t2;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
test.t2	analyze	status	OK
update t1, t2 set t1.a = t2.a where t2.b = t1.b;
show warnings;
Level	Code	Message
drop table t1, t2;
create table t1(f1 int, f2 int);
create table t2(f3 int, f4 int);
create index idx on t2(f3);
insert into t1 values(1,0),(2,0);
insert into t2 values(1,1),(2,2);
UPDATE t1 SET t1.f2=(SELECT MAX(t2.f4) FROM t2 WHERE t2.f3=t1.f1);
select * from t1;
f1	f2
1	1
2	2
drop table t1,t2;
create table t1(f1 int);
select DATABASE();
DATABASE()
test
update t1 set f1=1 where count(*)=1;
ERROR HY000: Invalid use of group function
select DATABASE();
DATABASE()
test
delete from t1 where count(*)=1;
ERROR HY000: Invalid use of group function
drop table t1;
create table t1 ( a int, b int default 0, index (a) );
insert into t1 (a) values (0),(0),(0),(0),(0),(0),(0),(0);
flush status;
select a from t1 order by a limit 1;
a
0
show status like 'handler_read%';
Variable_name	Value
Handler_read_first	1
Handler_read_key	0
Handler_read_last	0
Handler_read_next	0
Handler_read_prev	0
Handler_read_rnd	0
Handler_read_rnd_next	0
flush status;
update t1 set a=9999 order by a limit 1;
update t1 set b=9999 order by a limit 1;
show status like 'handler_read%';
Variable_name	Value
Handler_read_first	2
Handler_read_key	0
Handler_read_last	0
Handler_read_next	0
Handler_read_prev	0
Handler_read_rnd	2
Handler_read_rnd_next	0
flush status;
delete from t1 order by a limit 1;
show status like 'handler_read%';
Variable_name	Value
Handler_read_first	1
Handler_read_key	0
Handler_read_last	0
Handler_read_next	0
Handler_read_prev	0
Handler_read_rnd	0
Handler_read_rnd_next	0
flush status;
delete from t1 order by a desc limit 1;
show status like 'handler_read%';
Variable_name	Value
Handler_read_first	0
Handler_read_key	0
Handler_read_last	1
Handler_read_next	0
Handler_read_prev	0
Handler_read_rnd	0
Handler_read_rnd_next	0
alter table t1 disable keys;
flush status;
delete from t1 order by a limit 1;
show status like 'handler_read%';
Variable_name	Value
Handler_read_first	0
Handler_read_key	0
Handler_read_last	0
Handler_read_next	0
Handler_read_prev	0
Handler_read_rnd	1
Handler_read_rnd_next	9
select * from t1;
a	b
0	0
0	0
0	0
0	0
0	0
update t1 set a=a+10,b=1 order by a limit 3;
update t1 set a=a+11,b=2 order by a limit 3;
update t1 set a=a+12,b=3 order by a limit 3;
select * from t1 order by a;
a	b
11	2
21	2
22	3
22	3
23	3
drop table t1;
create table t1 (f1 date not null) engine=myisam;
insert into t1 values('2000-01-01'),('0000-00-00');
Warnings:
Warning	1264	Out of range value for column 'f1' at row 2
update t1 set f1='2002-02-02' where f1 is null;
select * from t1;
f1
2000-01-01
2002-02-02
drop table t1;
create table t1 (f1 int);
create table t2 (f2 int);
insert into t1 values(1),(2);
insert into t2 values(1),(1);
update t1,t2 set f1=3,f2=3 where f1=f2 and f1=1;
affected rows: 3
info: Rows matched: 3  Changed: 3  Warnings: 0
update t2 set f2=1;
update t1 set f1=1 where f1=3;
update t2,t1 set f1=3,f2=3 where f1=f2 and f1=1;
affected rows: 3
info: Rows matched: 3  Changed: 3  Warnings: 0
drop table t1,t2;
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2 (a int, filler1 char(200), filler2 char(200), key(a));
insert into t2 select A.a + 10*B.a, 'filler','filler' from t1 A, t1 B;
flush status;
update t2 set a=3 where a=2;
show status like 'handler_read%';
Variable_name	Value
Handler_read_first	0
Handler_read_key	1
Handler_read_last	0
Handler_read_next	1
Handler_read_prev	0
Handler_read_rnd	1
Handler_read_rnd_next	0
drop table t1, t2;
create table t1(f1 int, `*f2` int);
insert into t1 values (1,1);
update t1 set `*f2`=1;
drop table t1;
create table t1(f1 int);
update t1 set f2=1 order by f2;
ERROR 42S22: Unknown column 'f2' in 'order clause'
drop table t1;
SET sql_mode = 'NO_ENGINE_SUBSTITUTION';
Warnings:
Warning	3090	Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
CREATE TABLE t1 (
request_id int unsigned NOT NULL auto_increment,
user_id varchar(12) default NULL,
time_stamp datetime NOT NULL default '0000-00-00 00:00:00',
ip_address varchar(15) default NULL,
PRIMARY KEY (request_id),
KEY user_id_2 (user_id,time_stamp)
);
INSERT INTO t1 (user_id) VALUES ('user1');
INSERT INTO t1(user_id) SELECT user_id FROM t1;
INSERT INTO t1(user_id) SELECT user_id FROM t1;
INSERT INTO t1(user_id) SELECT user_id FROM t1;
INSERT INTO t1(user_id) SELECT user_id FROM t1;
INSERT INTO t1(user_id) SELECT user_id FROM t1;
INSERT INTO t1(user_id) SELECT user_id FROM t1;
INSERT INTO t1(user_id) SELECT user_id FROM t1;
INSERT INTO t1(user_id) SELECT user_id FROM t1;
flush status;
SELECT user_id FROM t1 WHERE request_id=9999999999999;
user_id
show status like '%Handler_read%';
Variable_name	Value
Handler_read_first	0
Handler_read_key	1
Handler_read_last	0
Handler_read_next	0
Handler_read_prev	0
Handler_read_rnd	0
Handler_read_rnd_next	0
SELECT user_id FROM t1 WHERE request_id=999999999999999999999999999999;
user_id
show status like '%Handler_read%';
Variable_name	Value
Handler_read_first	0
Handler_read_key	2
Handler_read_last	0
Handler_read_next	0
Handler_read_prev	0
Handler_read_rnd	0
Handler_read_rnd_next	0
UPDATE t1 SET user_id=null WHERE request_id=9999999999999;
show status like '%Handler_read%';
Variable_name	Value
Handler_read_first	0
Handler_read_key	2
Handler_read_last	0
Handler_read_next	0
Handler_read_prev	0
Handler_read_rnd	0
Handler_read_rnd_next	0
UPDATE t1 SET user_id=null WHERE request_id=999999999999999999999999999999;
show status like '%Handler_read%';
Variable_name	Value
Handler_read_first	0
Handler_read_key	2
Handler_read_last	0
Handler_read_next	0
Handler_read_prev	0
Handler_read_rnd	0
Handler_read_rnd_next	0
DROP TABLE t1;
SET sql_mode = default;
CREATE TABLE t1 (
a INT(11),
quux decimal( 31, 30 ),
UNIQUE KEY bar (a),
KEY quux (quux)
);
INSERT INTO
t1 ( a, quux )
VALUES
( 1,    1 ),
( 2,  0.1 );
INSERT INTO t1( a )
SELECT @newA := 1 + a FROM t1 WHERE quux <= 0.1;
SELECT * FROM t1;
a	quux
1	1.000000000000000000000000000000
2	0.100000000000000000000000000000
3	NULL
DROP TABLE t1;
set tmp_table_size=1024;
create table t1 (id int, a int, key idx(a));
create table t2 (id int unsigned not null auto_increment primary key, a int);
insert into t2(a) values(1),(2),(3),(4),(5),(6),(7),(8);
insert into t2(a) select a from t2;
insert into t2(a) select a from t2;
insert into t2(a) select a from t2;
update t2 set a=id;
insert into t1 select * from t2;
select count(*) from t1 join t2 on (t1.a=t2.a);
count(*)
64
update t1 join t2 on (t1.a=t2.a) set t1.id=t2.id;
affected rows: 0
info: Rows matched: 64  Changed: 0  Warnings: 0
insert into t2(a) select a from t2;
update t2 set a=id;
truncate t1;
insert into t1 select * from t2;
select count(*) from t1 join t2 on (t1.a=t2.a);
count(*)
128
update t1 join t2 on (t1.a=t2.a) set t1.id=t2.id;
affected rows: 0
info: Rows matched: 128  Changed: 0  Warnings: 0
update t1 set a=1;
update t2 set a=1;
select count(*) from t1 join t2 on (t1.a=t2.a);
count(*)
16384
update t1 join t2 on (t1.a=t2.a) set t1.id=t2.id;
affected rows: 127
info: Rows matched: 128  Changed: 127  Warnings: 0
drop table t1,t2;
DROP TABLE IF EXISTS t1;
DROP FUNCTION IF EXISTS f1;
CREATE FUNCTION f1() RETURNS INT RETURN f1();
CREATE TABLE t1 (i INT);
INSERT INTO t1 VALUES (1);
UPDATE t1 SET i = 3 WHERE f1();
ERROR HY000: Recursive stored functions and triggers are not allowed.
UPDATE t1 SET i = f1();
ERROR HY000: Recursive stored functions and triggers are not allowed.
DROP TABLE t1;
DROP FUNCTION f1;
End of 5.0 tests
#
# Bug #47919 assert in open_table during ALTER temporary table
#
CREATE TABLE t1 (f1 INTEGER AUTO_INCREMENT, PRIMARY KEY (f1));
CREATE TEMPORARY TABLE t2 LIKE t1;
INSERT INTO t1 VALUES (1);
INSERT INTO t2 VALUES (1);
ALTER TABLE t2 COMMENT = 'ABC';
UPDATE t2, t1 SET t2.f1 = 2, t1.f1 = 9;
ALTER TABLE t2 COMMENT = 'DEF';
DROP TABLE t1, t2;
#
# Bug#50545: Single table UPDATE IGNORE crashes on join view in
# sql_safe_updates mode.
#
CREATE TABLE t1 ( a INT, KEY( a ) );
INSERT INTO t1 VALUES (0), (1);
CREATE VIEW v1 AS SELECT t11.a, t12.a AS b FROM t1 t11, t1 t12;
SET SESSION sql_safe_updates = 1;
UPDATE IGNORE v1 SET a = 1;
ERROR HY000: You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column. 
SET SESSION sql_safe_updates = DEFAULT;
DROP TABLE t1;
DROP VIEW v1;
#
# Bug#54734 assert in Diagnostics_area::set_ok_status
#
SET sql_mode = 'NO_ENGINE_SUBSTITUTION';
Warnings:
Warning	3090	Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
DROP TABLE IF EXISTS t1, not_exists;
DROP FUNCTION IF EXISTS f1;
DROP VIEW IF EXISTS v1;
CREATE TABLE t1 (PRIMARY KEY(pk)) AS SELECT 1 AS pk;
CREATE FUNCTION f1() RETURNS INTEGER RETURN (SELECT 1 FROM not_exists);
CREATE VIEW v1 AS SELECT pk FROM t1 WHERE f1() = 13;
UPDATE v1 SET pk = 7 WHERE pk > 0;
ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
DROP VIEW v1;
DROP FUNCTION f1;
DROP TABLE t1;
SET sql_mode = default;
#
# Verify that UPDATE does the same number of handler_update
# operations, no matter if there is ORDER BY or not.
#
CREATE TABLE t1 (i INT) ENGINE=INNODB;
INSERT INTO t1 VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19),
(20),(21),(22),(23),(24),(25),(26),(27),(28),(29),
(30),(31),(32),(33),(34),(35);
CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), d CHAR(2),
INDEX idx (a,b(1),c)) ENGINE=INNODB;
INSERT INTO t2 SELECT i, i, i, i FROM t1;
FLUSH STATUS;
START TRANSACTION;
UPDATE t2 SET d = 10 WHERE b = 10 LIMIT 5;
SHOW STATUS LIKE 'HANDLER_UPDATE';
Variable_name	Value
Handler_update	1
ROLLBACK;
FLUSH STATUS;
START TRANSACTION;
UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
SHOW STATUS LIKE 'HANDLER_UPDATE';
Variable_name	Value
Handler_update	1
ROLLBACK;
Same test with a different UPDATE.
ALTER TABLE t2 DROP INDEX idx, ADD INDEX idx2 (a, b);
FLUSH STATUS;
START TRANSACTION;
UPDATE t2 SET c = 10 LIMIT 5;
SHOW STATUS LIKE 'HANDLER_UPDATE';
Variable_name	Value
Handler_update	5
ROLLBACK;
FLUSH STATUS;
START TRANSACTION;
UPDATE t2 SET c = 10 ORDER BY a, b DESC LIMIT 5;
SHOW STATUS LIKE 'HANDLER_UPDATE';
Variable_name	Value
Handler_update	5
ROLLBACK;
DROP TABLE t1, t2;
# Bug#18439019 Assert in mysql_multi_update with ordered view
CREATE TABLE t1 (
a int unsigned not null auto_increment primary key,
b int unsigned
) ENGINE=MyISAM;
CREATE TABLE t2 (
a int unsigned not null auto_increment primary key,
b int unsigned
) ENGINE=MyISAM;
INSERT INTO t1 VALUES (NULL, 0);
INSERT INTO t1 SELECT NULL, 0 FROM t1;
INSERT INTO t2 VALUES (NULL, 0), (NULL,1);
CREATE VIEW v1 AS SELECT a FROM t1 ORDER BY a;
explain UPDATE t2, v1 AS t SET t2.b = t.a+5 ;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	UPDATE	t2	NULL	ALL	NULL	NULL	NULL	NULL	2	100.00	NULL
1	SIMPLE	t1	NULL	index	NULL	PRIMARY	4	NULL	2	100.00	Using index
UPDATE t2, v1 AS t SET t2.b = t.a+5 ;
DROP VIEW v1;
DROP TABLE t1, t2;
# Bug#20454533: Assertion failed: sargables == 0 || *keyfields ...
CREATE TABLE t1(
a int,
c int,
e int,
f int,
g blob,
h int,
i int,
j blob,
unique key (g(221),c),
unique key (c,a,j(148)),
key (i)
) engine=innodb;
UPDATE (SELECT 1 AS a FROM t1 NATURAL JOIN t1 AS t2) AS x, t1
SET t1.e= x.a;
DROP TABLE t1;
# Bug #21143080: UPDATE ON VARCHAR AND TEXT COLUMNS PRODUCE INCORRECT
#                RESULTS
CREATE TABLE t1 (a VARCHAR(50), b TEXT, c CHAR(50)) ENGINE=INNODB;
INSERT INTO t1 (a, b, c) VALUES ('start trail', '', 'even longer string');
UPDATE t1 SET b = a, a = 'inject';
SELECT a, b FROM t1;
a	b
inject	start trail
UPDATE t1 SET b = c, c = 'inject';
SELECT c, b FROM t1;
c	b
inject	even longer string
DROP TABLE t1;
#
# Bug#18698556: UPDATE ORDER BY DOES A FILESORT IF UPDATING
#               A COLUMN IN THE INDEX
#
CREATE TABLE t1 (
a INTEGER,
b INTEGER,
c INTEGER,
d INTEGER,
KEY key1 (a,b,c)
);
INSERT INTO t1 (a,b,c,d) VALUES (1, 1, 1, 4), (2, 2, 2, 5), (2, 3, 4, 7),
(3, 3, 3, 9), (4, 4, 4, 0), (5, 5, 5, 1), (5, 6, 7, 3), (5, 7, 9, 9);
explain UPDATE t1 SET c = 72 WHERE a = 2 ORDER BY b ASC LIMIT 1;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	UPDATE	t1	NULL	range	key1	key1	5	const	2	100.00	Using where; Using temporary
UPDATE t1 SET c = 72 WHERE a = 2 ORDER BY b ASC LIMIT 1;
SELECT * FROM t1;
a	b	c	d
1	1	1	4
2	2	72	5
2	3	4	7
3	3	3	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
explain UPDATE t1 SET d = 72 WHERE a = 2 ORDER BY b ASC LIMIT 1;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	UPDATE	t1	NULL	range	key1	key1	5	const	2	100.00	Using where; Using temporary
UPDATE t1 SET d = 72 WHERE a = 2 ORDER BY b ASC LIMIT 1;
SELECT * FROM t1;
a	b	c	d
1	1	1	4
2	2	72	72
2	3	4	7
3	3	3	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
INSERT INTO t1 (a,b,c,d) VALUES (5, 5, 1, 1), (5, 5, 2, 1), (5, 5, 4, 1);
explain UPDATE t1 SET c = 3 WHERE a = 5 ORDER BY b ASC LIMIT 3;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	UPDATE	t1	NULL	range	key1	key1	5	const	5	100.00	Using where; Using temporary
UPDATE t1 SET c = 3 WHERE a = 5 ORDER BY b ASC LIMIT 3;
SELECT * FROM t1;
a	b	c	d
1	1	1	4
2	2	72	72
2	3	4	7
3	3	3	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
5	5	3	1
5	5	3	1
5	5	3	1
explain UPDATE t1 SET c = 62 WHERE a > 1 ORDER BY b ASC LIMIT 3;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	UPDATE	t1	NULL	range	key1	key1	5	const	10	100.00	Using where; Using filesort
UPDATE t1 SET c = 62 WHERE a > 1 ORDER BY b ASC LIMIT 3;
SELECT * FROM t1;
a	b	c	d
1	1	1	4
2	2	62	72
2	3	62	7
3	3	62	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
5	5	3	1
5	5	3	1
5	5	3	1
INSERT INTO t1 (a,b,c,d) VALUES (1, 1, 1, 4), (2, 2, 2, 5), (2, 3, 4, 7),
(3, 3, 3, 9), (4, 4, 4, 0), (5, 5, 5, 1), (5, 6, 7, 3), (5, 7, 9, 9);
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
explain UPDATE t1 SET c = 82 ORDER BY a ASC LIMIT 1;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	UPDATE	t1	NULL	index	NULL	key1	15	NULL	1	100.00	Using temporary
UPDATE t1 SET c = 82 ORDER BY a ASC LIMIT 1;
SELECT * FROM t1;
a	b	c	d
1	1	82	4
2	2	62	72
2	3	62	7
3	3	62	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
5	5	3	1
5	5	3	1
5	5	3	1
1	1	1	4
2	2	2	5
2	3	4	7
3	3	3	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
explain UPDATE t1 SET a = 82 ORDER BY b ASC LIMIT 1;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	UPDATE	t1	NULL	ALL	NULL	NULL	NULL	NULL	19	100.00	Using filesort
UPDATE t1 SET a = 82 ORDER BY b ASC LIMIT 1;
SELECT * FROM t1;
a	b	c	d
82	1	82	4
2	2	62	72
2	3	62	7
3	3	62	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
5	5	3	1
5	5	3	1
5	5	3	1
1	1	1	4
2	2	2	5
2	3	4	7
3	3	3	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
explain UPDATE t1 SET b = 82 ORDER BY d ASC LIMIT 1;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	UPDATE	t1	NULL	ALL	NULL	NULL	NULL	NULL	19	100.00	Using filesort
UPDATE t1 SET b = 82 ORDER BY d ASC LIMIT 1;
SELECT * FROM t1;
a	b	c	d
82	1	82	4
2	2	62	72
2	3	62	7
3	3	62	9
4	82	4	0
5	5	5	1
5	6	7	3
5	7	9	9
5	5	3	1
5	5	3	1
5	5	3	1
1	1	1	4
2	2	2	5
2	3	4	7
3	3	3	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
INSERT INTO t1 (a,b,c,d) VALUES (1, 1, 1, 4), (2, 2, 2, 5), (2, 3, 4, 7),
(3, 3, 3, 9), (4, 4, 4, 0), (5, 5, 5, 1), (5, 6, 7, 3), (5, 7, 9, 9);
INSERT INTO t1 (a,b,c,d) VALUES (1, 1, 1, 4), (2, 2, 2, 5), (2, 3, 4, 7),
(3, 3, 3, 9), (4, 4, 4, 0), (5, 5, 5, 1), (5, 6, 7, 3), (5, 7, 9, 9);
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
explain UPDATE t1 SET c = 82 ORDER BY a ASC LIMIT 2;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	UPDATE	t1	NULL	index	NULL	key1	15	NULL	2	100.00	Using temporary
UPDATE t1 SET c = 82 ORDER BY a ASC LIMIT 2;
SELECT * FROM t1;
a	b	c	d
82	1	82	4
2	2	62	72
2	3	62	7
3	3	62	9
4	82	4	0
5	5	5	1
5	6	7	3
5	7	9	9
5	5	3	1
5	5	3	1
5	5	3	1
1	1	82	4
2	2	2	5
2	3	4	7
3	3	3	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
1	1	82	4
2	2	2	5
2	3	4	7
3	3	3	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
1	1	1	4
2	2	2	5
2	3	4	7
3	3	3	9
4	4	4	0
5	5	5	1
5	6	7	3
5	7	9	9
DROP TABLE t1;
# End of test for Bug#18698556
#
# Bug#21032418: PERFORMANCE REGRESSION IN 5.6: UPDATE DOES NOT USE INDEX
#
CREATE TABLE t1(
id INTEGER NOT NULL AUTO_INCREMENT,
token VARCHAR(255) DEFAULT NULL,
PRIMARY KEY (id),
KEY token (token)
)DEFAULT CHARSET=utf8;
INSERT INTO t1 VALUES (1, "abc"), (2, "def");
SET sql_mode='';
Warnings:
Warning	3090	Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
UPDATE t1 SET token = X'ad';
Warnings:
Warning	1366	Incorrect string value: '\xAD' for column 'token' at row 1
Warning	1366	Incorrect string value: '\xAD' for column 'token' at row 2
SELECT * FROM t1;
id	token
1	
2	
EXPLAIN UPDATE t1 SET token = NULL WHERE token = X'ad';
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	UPDATE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
Warnings:
Warning	1366	Incorrect string value: '\xAD' for column 'token' at row 1
UPDATE t1 SET token = NULL WHERE token = X'ad';
Warnings:
Warning	1366	Incorrect string value: '\xAD' for column 'token' at row 1
SET sql_mode=default;
EXPLAIN UPDATE t1 SET token = NULL WHERE token = X'ad';
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	UPDATE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
Warnings:
Warning	1366	Incorrect string value: '\xAD' for column 'token' at row 1
UPDATE t1 SET token = NULL WHERE token = X'ad';
Warnings:
Warning	1366	Incorrect string value: '\xAD' for column 'token' at row 1
SELECT * FROM t1;
id	token
1	
2	
DROP TABLE t1;
# End of test for Bug#21032418