mirror of
https://github.com/MariaDB/server.git
synced 2025-01-20 14:02:32 +01:00
86e8ecc965
by binlogging some SET ONE_SHOT CHARACTER_SETetc, which will be enough until we have it more compact and more complete in 5.0. With the present patch, replication will work ok between 4.1.3 master and slaves, as long as: - master and slave have the same GLOBAL.COLLATION_SERVER - COLLATION_DATABASE and CHARACTER_SET_DATABASE are not used - application does not use the fact that table is created with charset of the USEd db (BUG#2326). all of which are not too hard to fulfill. ONE_SHOT is reserved for internal use of mysqlbinlog|mysql and works only for charsets, so we give error if used for non-charset vars. Fix for BUG#3875 "mysqlbinlog produces wrong ouput if query uses variables containing quotes" and BUG#3943 "Queries with non-ASCII literals are not replicated properly after SET NAMES". Detecting that master and slave have different global charsets or server ids.
197 lines
5.9 KiB
Text
197 lines
5.9 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'hello' 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'\';aaa' 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'\0a\0b\0c' 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'hello' COLLATE latin1_swedish_ci;
|
|
use test;
|
|
SET TIMESTAMP=10000;
|
|
INSERT INTO t1 VALUES(@`a b`);
|
|
SET @`var1`:=_latin1'\';aaa' 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'\0a\0b\0c' COLLATE ucs2_general_ci;
|
|
SET TIMESTAMP=10000;
|
|
insert into t2 values (@v);
|
|
drop table t1, t2;
|