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Implementation of WL#1824 "Add replication of character set variables in 4.1",

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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.
This commit is contained in:
guilhem@mysql.com
2004-06-03 23:17:18 +02:00
parent a5d8f243a9
commit 86e8ecc965
18 changed files with 767 additions and 85 deletions
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33
mysql-test/r/user_var.result
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@ -162,3 +162,36 @@ 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;