~drizzle-trunk/drizzle/development

drop table if exists t1,t2;

set @a := foo;

ERROR 42S22: Unknown column 'foo' in 'field list'

set @a := connection_id() + 3;

select @a - connection_id();

@a - connection_id()

3

set @b := 1;

select @b;

@b

1

CREATE TABLE t1 ( i int not null, v int not null,index (i));

insert into t1 values (1,1),(1,3),(2,1);

create table t2 (i int not null, unique (i));

insert into t2 select distinct i from t1;

select * from t2;

i

1

2

select distinct t2.i,@vv1:=if(sv1.i,1,0),@vv2:=if(sv2.i,1,0),@vv3:=if(sv3.i,1,0), @vv1+@vv2+@vv3 from t2 left join t1 as sv1 on sv1.i=t2.i and sv1.v=1 left join t1 as sv2 on sv2.i=t2.i and sv2.v=2 left join t1 as sv3 on sv3.i=t2.i and sv3.v=3;

i	@vv1:=if(sv1.i,1,0)	@vv2:=if(sv2.i,1,0)	@vv3:=if(sv3.i,1,0)	@vv1+@vv2+@vv3

1	1	0	1	2

2	1	0	0	1

explain select * from t1 where i=@vv1;

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra

1	SIMPLE	t1	ref	i	i	4	const	1	

select @vv1,i,v from t1 where i=@vv1;

@vv1	i	v

1	1	1

1	1	3

explain select * from t1 where @vv1:=@vv1+1 and i=@vv1;

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra

1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where

explain select @vv1:=i from t1 where i=@vv1;

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra

1	SIMPLE	t1	index	NULL	i	4	NULL	3	Using where; Using index

explain select * from t1 where i=@vv1;

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra

1	SIMPLE	t1	ref	i	i	4	const	1	

drop table t1,t2;

set @a=0,@b=0;

select @a:=10,   @b:=1,   @a > @b, @a < @b;

@a:=10	@b:=1	@a > @b	@a < @b

10	1	1	0

select @a:="10", @b:="1", @a > @b, @a < @b;

@a:="10"	@b:="1"	@a > @b	@a < @b

10	1	1	0

select @a:=10,   @b:=2,   @a > @b, @a < @b;

@a:=10	@b:=2	@a > @b	@a < @b

10	2	0	1

select @a:="10", @b:="2", @a > @b, @a < @b;

@a:="10"	@b:="2"	@a > @b	@a < @b

10	2	1	0

select @a:=1;

@a:=1

1

select @a, @a:=1;

@a	@a:=1

1	1

create table t1 (id int, d double, c char(10));

insert into t1 values (1,2.0, "test");

select @c:=0;

@c:=0

0

update t1 SET id=(@c:=@c+1);

select @c;

@c

1

select @c:=0;

@c:=0

0

update t1 set id=(@c:=@c+1);

select @c;

@c

1

select @c:=0;

@c:=0

0

select @c:=@c+1;

@c:=@c+1

1

select @d,(@d:=id),@d from t1;

@d	(@d:=id)	@d

NULL	1	1

select @e,(@e:=d),@e from t1;

@e	(@e:=d)	@e

NULL	2	2

select @f,(@f:=c),@f from t1;

@f	(@f:=c)	@f

NULL	test	test

set @g=1;

select @g,(@g:=c),@g from t1;

@g	(@g:=c)	@g

1	test	0

select @c, @d, @e, @f;

@c	@d	@e	@f

1	1	2	test

select @d:=id, @e:=id, @f:=id, @g:=@id from t1;

@d:=id	@e:=id	@f:=id	@g:=@id

1	1	1	NULL

select @c, @d, @e, @f, @g;

@c	@d	@e	@f	@g

1	1	1	1	NULL

drop table t1;

select @a:=10, @b:=2, @a>@b, @a:="10", @b:="2", @a>@b, @a:=10, @b:=2, @a>@b, @a:="10", @b:="2", @a>@b;

@a:=10	@b:=2	@a>@b	@a:="10"	@b:="2"	@a>@b	@a:=10	@b:=2	@a>@b	@a:="10"	@b:="2"	@a>@b

10	2	1	10	2	1	10	2	1	10	2	1

create table t1 (i int not null);

insert t1 values (1),(2),(2),(3),(3),(3);

select @a:=0;

@a:=0

0

select @a, @a:=@a+count(*), count(*), @a from t1 group by i;

@a	@a:=@a+count(*)	count(*)	@a

0	1	1	0

0	2	2	0

0	3	3	0

select @a:=0;

@a:=0

0

select @a+0, @a:=@a+0+count(*), count(*), @a+0 from t1 group by i;

@a+0	@a:=@a+0+count(*)	count(*)	@a+0

0	1	1	0

1	3	2	0

3	6	3	0

set @a=0;

select @a,@a:="hello",@a,@a:=3,@a,@a:="hello again" from t1 group by i;

@a	@a:="hello"	@a	@a:=3	@a	@a:="hello again"

0	hello	0	3	0	hello again

0	hello	0	3	0	hello again

0	hello	0	3	0	hello again

select @a,@a:="hello",@a,@a:=3,@a,@a:="hello again" from t1 group by i;

@a	@a:="hello"	@a	@a:=3	@a	@a:="hello again"

hello again	hello	hello again	3	hello again	hello again

hello again	hello	hello again	3	hello again	hello again

hello again	hello	hello again	3	hello again	hello again

drop table t1;

set @a='test';

select collation(@a),coercibility(@a);

collation(@a)	coercibility(@a)

utf8_general_ci	2

select @a='TEST';

@a='TEST'

1

select @a='TEST' collate utf8_bin;

@a='TEST' collate utf8_bin

0

set @a='test' collate utf8_general_ci;

select collation(@a),coercibility(@a);

collation(@a)	coercibility(@a)

utf8_general_ci	2

select @a='TEST';

@a='TEST'

1

select @a='TEST' collate utf8_bin;

@a='TEST' collate utf8_bin

0

select collation(@a:='test');

collation(@a:='test')

utf8_general_ci

select coercibility(@a:='test');

coercibility(@a:='test')

2

select collation(@a:='test' collate utf8_bin);

collation(@a:='test' collate utf8_bin)

utf8_bin

select coercibility(@a:='test' collate utf8_bin);

coercibility(@a:='test' collate utf8_bin)

2

select (@a:='test' collate utf8_bin) = 'TEST';

(@a:='test' collate utf8_bin) = 'TEST'

0

select collation(@a),coercibility(@a);

collation(@a)	coercibility(@a)

utf8_bin	2

select (@a:='test' collate utf8_bin) = 'TEST' collate utf8_general_ci;

(@a:='test' collate utf8_bin) = 'TEST' collate utf8_general_ci

1

set @var= NULL ;

select FIELD( @var,'1it','Hit') as my_column;

my_column

0

select @v, coercibility(@v);

@v	coercibility(@v)

NULL	2

set @v1=null, @v2=1, @v3=1.1, @v4=now();

select coercibility(@v1),coercibility(@v2),coercibility(@v3),coercibility(@v4);

coercibility(@v1)	coercibility(@v2)	coercibility(@v3)	coercibility(@v4)

2	2	2	2

set session @honk=99;

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 '@honk=99' at line 1

select @@local.max_allowed_packet;

@@local.max_allowed_packet

#

select @@session.max_allowed_packet;

@@session.max_allowed_packet

#

select @@global.max_allowed_packet;

@@global.max_allowed_packet

#

select @@max_allowed_packet;

@@max_allowed_packet

#

select @@Max_Allowed_Packet;

@@Max_Allowed_Packet

#

select @@version;

@@version

#

select @@global.version;

@@global.version

#

End of 4.1 tests

set @first_var= NULL;

create table t1 select @first_var;

show create table t1;

Table	Create Table

t1	CREATE TABLE `t1` (

  `@first_var` blob

) ENGINE=DEFAULT

drop table t1;

set @first_var= cast(NULL as integer);

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 'integer)' at line 1

set @first_var= NULL;

create table t1 select @first_var;

show create table t1;

Table	Create Table

t1	CREATE TABLE `t1` (

  `@first_var` blob

) ENGINE=DEFAULT

drop table t1;

set @first_var= concat(NULL);

create table t1 select @first_var;

show create table t1;

Table	Create Table

t1	CREATE TABLE `t1` (

  `@first_var` blob

) ENGINE=DEFAULT

drop table t1;

set @first_var=1;

set @first_var= cast(NULL as CHAR);

create table t1 select @first_var;

show create table t1;

Table	Create Table

t1	CREATE TABLE `t1` (

  `@first_var` text

) ENGINE=DEFAULT

drop table t1;

set @a=18446744071710965857;

select @a;

@a

18446744071710965857

CREATE TABLE `bigfailure` (

`afield` BIGINT NOT NULL

);

INSERT INTO `bigfailure` VALUES (18446744071710965857);

SELECT * FROM bigfailure;

afield

-1998585759

select * from (SELECT afield FROM bigfailure) as b;

afield

-1998585759

select * from bigfailure where afield = (SELECT afield FROM bigfailure);

afield

-1998585759

select * from bigfailure where afield = 18446744071710965857;

afield

-1998585759

select * from bigfailure where afield = '18446744071710965857';

afield

select * from bigfailure where afield = 18446744071710965856+1;

afield

-1998585759

SET @a := (SELECT afield FROM bigfailure);

SELECT @a;

@a

-1998585759

SET @a := (select afield from (SELECT afield FROM bigfailure) as b);

SELECT @a;

@a

-1998585759

SET @a := (select * from bigfailure where afield = (SELECT afield FROM bigfailure));

SELECT @a;

@a

-1998585759

drop table bigfailure;

create table t1(f1 int, f2 int);

insert into t1 values (1,2),(2,3),(3,1);

select @var:=f2 from t1 group by f1 order by f2 desc limit 1;

@var:=f2 

3

select @var;

@var

3

drop table t1;

insert into city 'blah';

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 ''blah'' at line 1

SHOW COUNT(*) WARNINGS;

@@session.warning_count

1

SHOW COUNT(*) ERRORS;

@@session.error_count

1

create table t1(f1 int, f2 varchar(2), f3 float, f4 decimal(2,1));

insert into t1 values 

(1, "a", 1.5, 1.6), (1, "a", 1.5, 1.6), (2, "b", 2.5, 2.6),

(3, "c", 3.5, 3.6), (4, "d", 4.5, 4.6), (1, "a", 1.5, 1.6),

(3, "c", 3.5, 3.6), (1, "a", 1.5, 1.6);

select @a:=f1, count(f1) from t1 group by 1 desc;

@a:=f1	count(f1)

4	1

3	2

2	1

1	4

select @a:=f1, count(f1) from t1 group by 1 asc;

@a:=f1	count(f1)

1	4

2	1

3	2

4	1

select @a:=f2, count(f2) from t1 group by 1 desc;

@a:=f2	count(f2)

d	1

c	2

b	1

a	4

select @a:=f3, count(f3) from t1 group by 1 desc;

@a:=f3	count(f3)

4.5	1

3.5	2

2.5	1

1.5	4

select @a:=f4, count(f4) from t1 group by 1 desc;

@a:=f4	count(f4)

4.6	1

3.6	2

2.6	1

1.6	4

drop table t1;

create table t1 (f1 int);

insert into t1 values (2), (1);

select @i := f1 as j from t1 order by 1;

j

1

2

drop table t1;

create table t1(a int);

insert into t1 values(5),(4),(4),(3),(2),(2),(2),(1);

set @rownum := 0;

set @rank := 0;

set @prev_score := NULL;

select @rownum := @rownum + 1 as row,

@rank := IF(@prev_score!=a, @rownum, @rank) as rank,

@prev_score := a as score

from t1 order by score desc;

drop table t1;

End of 5.1 tests