mirror of
https://github.com/MariaDB/server.git
synced 2025-01-19 13:32:33 +01:00
dd2a44c497
internal charset to one associated with currently being handled query. To note such a query can come from interactive client either. There was a discussion within replication team and Monty who's suggestion won. It avoids straightforward parsing of all `set' queries that could affect client side character set. According to the idea, mysql client does not parse `set' queries but rather cares of `charset new_cs_name' command. This command is generated by mysqlbinlog in form of exclaiming comment (Lars' suggestion) so that enlightened clients like `mysql' knows what to do with it. Interactive human can switch between many multi-byte charsets during the session providing the command explicitly. To note that setting new internal mysql's charset does not trigger sending any `SET' sql statement to the server.
34 lines
1.5 KiB
Text
34 lines
1.5 KiB
Text
create table t1 (a varchar(50));
|
|
reset master;
|
|
SET TIMESTAMP=10000;
|
|
SET @`a b`='hello';
|
|
INSERT INTO t1 VALUES(@`a b`);
|
|
set @var1= "';aaa";
|
|
SET @var2=char(ascii('a'));
|
|
insert into t1 values (@var1),(@var2);
|
|
show binlog events from 98;
|
|
Log_name Pos Event_type Server_id End_log_pos Info
|
|
master-bin.000001 98 User var 1 139 @`a b`=_latin1 0x68656C6C6F COLLATE latin1_swedish_ci
|
|
master-bin.000001 139 Query 1 231 use `test`; INSERT INTO t1 VALUES(@`a b`)
|
|
master-bin.000001 231 User var 1 273 @`var1`=_latin1 0x273B616161 COLLATE latin1_swedish_ci
|
|
master-bin.000001 273 User var 1 311 @`var2`=_binary 0x61 COLLATE binary
|
|
master-bin.000001 311 Query 1 411 use `test`; insert into t1 values (@var1),(@var2)
|
|
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
|
|
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
|
|
ROLLBACK;
|
|
SET @`a b`:=_latin1 0x68656C6C6F COLLATE `latin1_swedish_ci`;
|
|
use test;
|
|
SET TIMESTAMP=10000;
|
|
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1;
|
|
SET @@session.sql_mode=0;
|
|
/*!\C latin1 */;
|
|
SET @@session.character_set_client=8,@@session.collation_connection=8,@@session.collation_server=8;
|
|
INSERT INTO t1 VALUES(@`a b`);
|
|
SET @`var1`:=_latin1 0x273B616161 COLLATE `latin1_swedish_ci`;
|
|
SET @`var2`:=_binary 0x61 COLLATE `binary`;
|
|
SET TIMESTAMP=10000;
|
|
insert into t1 values (@var1),(@var2);
|
|
# End of log file
|
|
ROLLBACK /* added by mysqlbinlog */;
|
|
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
|
|
drop table t1;
|