mirror of
https://github.com/MariaDB/server.git
synced 2025-01-18 13:02:28 +01:00
6608e22d9c
My previous change that "set @a=NULL" doesn't change charset fixed 'Bug #6321' as well. Prove with a new test that FIELD(<uservariable content NULL>, ...) now works fine too. mysql-test/t/user_var.test: My previous change that "set @a=NULL" doesn't change charset fixed 'Bug #6321' as well. Prove with a new test that FIELD(<uservariable content NULL>, ...) now works fine too. mysql-test/r/user_var.result: My previous change that "set @a=NULL" doesn't change charset fixed 'Bug #6321' as well. Prove with a new test that FIELD(<uservariable content NULL>, ...) now works fine too.
201 lines
6 KiB
Text
201 lines
6 KiB
Text
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 Using where
|
|
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 Using where
|
|
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 test
|
|
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
|
|
drop table t1;
|
|
set @a=_latin2'test';
|
|
select charset(@a),collation(@a),coercibility(@a);
|
|
charset(@a) collation(@a) coercibility(@a)
|
|
latin2 latin2_general_ci 3
|
|
select @a=_latin2'TEST';
|
|
@a=_latin2'TEST'
|
|
1
|
|
select @a=_latin2'TEST' collate latin2_bin;
|
|
@a=_latin2'TEST' collate latin2_bin
|
|
0
|
|
set @a=_latin2'test' collate latin2_general_ci;
|
|
select charset(@a),collation(@a),coercibility(@a);
|
|
charset(@a) collation(@a) coercibility(@a)
|
|
latin2 latin2_general_ci 0
|
|
select @a=_latin2'TEST';
|
|
@a=_latin2'TEST'
|
|
1
|
|
select @a=_latin2'TEST' collate latin2_bin;
|
|
ERROR HY000: Illegal mix of collations (latin2_general_ci,EXPLICIT) and (latin2_bin,EXPLICIT) for operation '='
|
|
select charset(@a:=_latin2'test');
|
|
charset(@a:=_latin2'test')
|
|
latin2
|
|
select collation(@a:=_latin2'test');
|
|
collation(@a:=_latin2'test')
|
|
latin2_general_ci
|
|
select coercibility(@a:=_latin2'test');
|
|
coercibility(@a:=_latin2'test')
|
|
3
|
|
select collation(@a:=_latin2'test' collate latin2_bin);
|
|
collation(@a:=_latin2'test' collate latin2_bin)
|
|
latin2_bin
|
|
select coercibility(@a:=_latin2'test' collate latin2_bin);
|
|
coercibility(@a:=_latin2'test' collate latin2_bin)
|
|
0
|
|
select (@a:=_latin2'test' collate latin2_bin) = _latin2'TEST';
|
|
(@a:=_latin2'test' collate latin2_bin) = _latin2'TEST'
|
|
0
|
|
select charset(@a),collation(@a),coercibility(@a);
|
|
charset(@a) collation(@a) coercibility(@a)
|
|
latin2 latin2_bin 0
|
|
select (@a:=_latin2'test' collate latin2_bin) = _latin2'TEST' collate latin2_general_ci;
|
|
ERROR HY000: Illegal mix of collations (latin2_bin,EXPLICIT) and (latin2_general_ci,EXPLICIT) for operation '='
|
|
create table t1 (a varchar(50));
|
|
reset master;
|
|
SET TIMESTAMP=10000;
|
|
SET @`a b`='hello';
|
|
INSERT INTO t1 VALUES(@`a b`);
|
|
set @var1= "';aaa";
|
|
insert into t1 values (@var1);
|
|
create table t2 (c char(30)) charset=ucs2;
|
|
set @v=convert('abc' using ucs2);
|
|
insert into t2 values (@v);
|
|
show binlog events from 79;
|
|
Log_name Pos Event_type Server_id Orig_log_pos Info
|
|
master-bin.000001 79 User var 1 79 @`a b`=_latin1 0x68656C6C6F COLLATE latin1_swedish_ci
|
|
master-bin.000001 120 Query 1 120 use `test`; INSERT INTO t1 VALUES(@`a b`)
|
|
master-bin.000001 184 User var 1 184 @`var1`=_latin1 0x273B616161 COLLATE latin1_swedish_ci
|
|
master-bin.000001 226 Query 1 226 use `test`; insert into t1 values (@var1)
|
|
master-bin.000001 290 Query 1 290 use `test`; create table t2 (c char(30)) charset=ucs2
|
|
master-bin.000001 366 User var 1 366 @`v`=_ucs2 0x006100620063 COLLATE ucs2_general_ci
|
|
master-bin.000001 406 Query 1 406 use `test`; insert into t2 values (@v)
|
|
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
|
|
SET @`a b`:=_latin1 0x68656C6C6F COLLATE latin1_swedish_ci;
|
|
use test;
|
|
SET TIMESTAMP=10000;
|
|
INSERT INTO t1 VALUES(@`a b`);
|
|
SET @`var1`:=_latin1 0x273B616161 COLLATE latin1_swedish_ci;
|
|
SET TIMESTAMP=10000;
|
|
insert into t1 values (@var1);
|
|
SET TIMESTAMP=10000;
|
|
create table t2 (c char(30)) charset=ucs2;
|
|
SET @`v`:=_ucs2 0x006100620063 COLLATE ucs2_general_ci;
|
|
SET TIMESTAMP=10000;
|
|
insert into t2 values (@v);
|
|
drop table t1, t2;
|
|
set @var= NULL ;
|
|
select FIELD( @var,'1it','Hit') as my_column;
|
|
my_column
|
|
0
|