set @save_binlog_format= @@global.binlog_format;
set @save_binlog_dirct= @@global.binlog_direct_non_transactional_updates;
create table t1 (a int) engine= myisam;
create table t2 (a int) engine= innodb;
SELECT @@session.binlog_format;
@@session.binlog_format
ROW
SET AUTOCOMMIT=1;
# Test that the session variable 'binlog_format' 
# is writable outside a transaction.
set @@session.binlog_format= statement;
set @@session.binlog_direct_non_transactional_updates= TRUE;
SELECT @@session.binlog_format;
@@session.binlog_format
STATEMENT
SELECT @@session.binlog_direct_non_transactional_updates;
@@session.binlog_direct_non_transactional_updates
1
begin;
# Test that the session variable 'binlog_format' is read-only
# inside a transaction with no preceding updates.
set @@session.binlog_format= mixed;
ERROR HY000: Cannot modify @@session.binlog_format inside a transaction
set @@session.binlog_direct_non_transactional_updates= FALSE;
ERROR HY000: Cannot modify @@session.binlog_direct_non_transactional_updates inside a transaction
insert into t2 values (1);
# Test that the session variable 'binlog_format' is read-only
# inside a transaction with preceding transactional updates.
set @@session.binlog_format= row;
ERROR HY000: Cannot modify @@session.binlog_format inside a transaction
set @@session.binlog_direct_non_transactional_updates= FALSE;
ERROR HY000: Cannot modify @@session.binlog_direct_non_transactional_updates inside a transaction
commit;
begin;
insert into t1 values (2);
# Test that the session variable 'binlog_format' is read-only
# inside a transaction with preceding non-transactional updates.
set @@session.binlog_format= statement;
ERROR HY000: Cannot modify @@session.binlog_format inside a transaction
set @@session.binlog_direct_non_transactional_updates= FALSE;
ERROR HY000: Cannot modify @@session.binlog_direct_non_transactional_updates inside a transaction
commit;
# Test that the session variable 'binlog_format' is writable 
# when AUTOCOMMIT=0, before a transaction has started.
set AUTOCOMMIT=0;
set @@session.binlog_format= row;
set @@session.binlog_direct_non_transactional_updates= FALSE;
SELECT @@session.binlog_format;
@@session.binlog_format
ROW
SELECT @@session.binlog_direct_non_transactional_updates;
@@session.binlog_direct_non_transactional_updates
0
insert into t1 values (4);
# Test that the session variable 'binlog_format' is read-only inside an
# AUTOCOMMIT=0 transaction with preceding non-transactional updates.
set @@session.binlog_format= statement;
ERROR HY000: Cannot modify @@session.binlog_format inside a transaction
set @@session.binlog_direct_non_transactional_updates= TRUE;
ERROR HY000: Cannot modify @@session.binlog_direct_non_transactional_updates inside a transaction
SELECT @@session.binlog_format;
@@session.binlog_format
ROW
SELECT @@session.binlog_direct_non_transactional_updates;
@@session.binlog_direct_non_transactional_updates
0
commit;
insert into t2 values (5);
# Test that the session variable 'binlog_format' is read-only inside an
# AUTOCOMMIT=0 transaction with preceding transactional updates.
set @@session.binlog_format= row;
ERROR HY000: Cannot modify @@session.binlog_format inside a transaction
set @@session.binlog_direct_non_transactional_updates= TRUE;
ERROR HY000: Cannot modify @@session.binlog_direct_non_transactional_updates inside a transaction
SELECT @@session.binlog_format;
@@session.binlog_format
ROW
SELECT @@session.binlog_direct_non_transactional_updates;
@@session.binlog_direct_non_transactional_updates
0
commit;
begin;
insert into t2 values (6);
# Test that the global variable 'binlog_format' is writable
# inside a transaction.
SELECT @@global.binlog_format;
@@global.binlog_format
ROW
set @@global.binlog_format= statement;
set @@global.binlog_direct_non_transactional_updates= TRUE;
SELECT @@global.binlog_format;
@@global.binlog_format
STATEMENT
SELECT @@global.binlog_direct_non_transactional_updates;
@@global.binlog_direct_non_transactional_updates
1
commit;
set @@global.binlog_format= @save_binlog_format;
set  @@global.binlog_direct_non_transactional_updates= @save_binlog_dirct;
create table t3(a int, b int) engine= innodb;
create table t4(a int) engine= innodb;
create table t5(a int) engine= innodb;
create trigger tr1 after insert on t3 for each row begin
insert into t4(a) values(1);
set @@session.binlog_format= statement; 
insert into t4(a) values(2);
insert into t5(a) values(3);
end |
# Test that the session variable 'binlog_format' is read-only
# in sub-statements.
insert into t3(a,b) values(1,1);
ERROR HY000: Cannot change the binary logging format inside a stored function or trigger
SELECT @@session.binlog_format;
@@session.binlog_format
ROW
create table t6(a int, b int) engine= innodb;
create table t7(a int) engine= innodb;
create table t8(a int) engine= innodb;
create trigger tr2 after insert on t6 for each row begin
insert into t7(a) values(1);
set @@global.binlog_direct_non_transactional_updates= FALSE;
insert into t7(a) values(2);
insert into t8(a) values(3);
end |
# Test that the session variable 'binlog_format' is read-only
# in sub-statements.
insert into t6(a,b) values(1,1);
ERROR HY000: Cannot change the binlog direct flag inside a stored function or trigger
SELECT @@session.binlog_direct_non_transactional_updates;
@@session.binlog_direct_non_transactional_updates
0
drop table t1;
drop table t2;
drop table t3;
drop table t4;
drop table t5;
drop table t6;
drop table t7;
drop table t8;