mariadb/mysql-test/suite/binlog/t/binlog_switch_inside_trans.test
Alfranio Correia 8357596035 BUG#53437 @@session.sql_bin_log support in substatements is incorrect
The thd->variables.option_bits & OPTION_BIN_LOG is currently abused: 
it's both a system variable and an implementation switch. The current
approach to this option bit breaks the session variable encapsulation. 
      
Besides it is allowed to change @@session.sql_bin_log within a
transaction what may lead to not correctly logging a transaction.
      
To fix the problems,  we created a thd->variables variable to represent
the "sql_log_bin" and prohibited its update inside a transaction or
sub-statement.

mysql-test/suite/binlog/r/binlog_stm_unsafe_warning.result:
  Updated result file. The reason the warnings are removed is
  related to BUG#50312.
mysql-test/suite/binlog/r/binlog_switch_inside_trans.result:
  Checks when is possible to change the option @@session.sql_log_bin.
mysql-test/suite/binlog/t/binlog_switch_inside_trans.test:
  Checks when is possible to change the option @@session.sql_log_bin.
mysql-test/suite/rpl/r/rpl_non_direct_stm_mixing_engines.result:
  Updated the result file with warnings that were being printed
  due to the wrong use of the thd->variables.option_bits and
  sql_log_bin_top_level variables.
mysql-test/suite/rpl/r/rpl_stm_mixing_engines.result:
  Updated the result file with warnings that were being printed
  due to the wrong use of the thd->variables.option_bits and
  sql_log_bin_top_level variables.
sql/share/errmsg-utf8.txt:
  Introduces two error messages to notify that the @@session.sql_log_bin
  cannot be changed inside a sub-statement or transaction.
sql/sql_base.cc:
  Removes the variable sql_log_bin_toplevel and uses
  the session variable sql_log_bin.
sql/sql_class.cc:
  Replaces the variable sql_log_bin_toplevel by the
  (variables.option_bits & OPTION_BIN_LOG).
sql/sql_class.h:
  Removes the variable sql_log_bin_toplevel and creates 
  a session variable sql_log_bin.
sql/sys_vars.cc:
  Checks when the sql_log_bin can be correctly updated.
2010-05-27 16:43:08 +01:00

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Text

#
# BUG#47863
# This test verifies if the session variable 'binlog_format' and
# 'binlog_direct_non_transactional_updates' are read-only inside
# a transaction and in sub-statements.
#
source include/have_innodb.inc;
source include/have_binlog_format_row.inc;
set @save_binlog_format= @@global.binlog_format;
set @save_binlog_dirct= @@global.binlog_direct_non_transactional_updates;
set @save_sql_log_bin= @@global.sql_log_bin;
create table t1 (a int) engine= myisam;
create table t2 (a int) engine= innodb;
SELECT @@session.binlog_format;
SELECT @@session.binlog_direct_non_transactional_updates;
SELECT @@session.sql_log_bin;
SET AUTOCOMMIT=1;
--echo # Test that the session variable 'binlog_format',
--echo # 'binlog_direct_non_transactional_updates' and 'sql_log_bin'
--echo # are writable outside a transaction.
--echo # Current session values are ROW, FALSE, TRUE, respectively.
set @@session.binlog_format= statement;
set @@session.binlog_direct_non_transactional_updates= TRUE;
set @@session.sql_log_bin= FALSE;
SELECT @@session.binlog_format;
SELECT @@session.binlog_direct_non_transactional_updates;
SELECT @@session.sql_log_bin;
begin;
--echo # Test that the session variable 'binlog_format',
--echo # 'binlog_direct_non_transactional_updates' and 'sql_log_bin' are
--echo # read-only inside a transaction with no preceding updates.
--echo # Current session values are STATEMENT, TRUE, FALSE, respectively.
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_BINLOG_FORMAT
set @@session.binlog_format= mixed;
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_BINLOG_DIRECT
set @@session.binlog_direct_non_transactional_updates= FALSE;
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_SQL_LOG_BIN
set @@session.sql_log_bin= FALSE;
insert into t2 values (1);
--echo # Test that the session variable 'binlog_format',
--echo # 'binlog_direct_non_transactional_updates' and 'sql_log_bin' are
--echo # read-only inside a transaction with preceding transactional updates.
--echo # Current session values are STATEMENT, TRUE and FALSE, respectively.
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_BINLOG_FORMAT
set @@session.binlog_format= row;
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_BINLOG_DIRECT
set @@session.binlog_direct_non_transactional_updates= FALSE;
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_SQL_LOG_BIN
set @@session.sql_log_bin= FALSE;
commit;
begin;
insert into t1 values (2);
--echo # Test that the session variable 'binlog_format'
--echo # 'binlog_direct_non_transactional_updates' and 'sql_log_bin' are
--echo # read-only inside a transaction with preceding non-transactional updates.
--echo # Current session values are STATEMENT, TRUE, FALSE, respectively.
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_BINLOG_FORMAT
set @@session.binlog_format= mixed;
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_BINLOG_DIRECT
set @@session.binlog_direct_non_transactional_updates= FALSE;
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_SQL_LOG_BIN
set @@session.sql_log_bin= FALSE;
commit;
--echo # Test that the session variable 'binlog_format',
--echo # 'binlog_direct_non_transactional_updates' and 'sql_log_bin' are
--echo # writable when AUTOCOMMIT=0, before a transaction has started.
--echo # Current session values are STATEMENT, TRUE, FALSE, respectively.
set AUTOCOMMIT=0;
set @@session.binlog_format= row;
set @@session.binlog_direct_non_transactional_updates= FALSE;
set @@session.sql_log_bin= TRUE;
SELECT @@session.binlog_format;
SELECT @@session.binlog_direct_non_transactional_updates;
SELECT @@session.sql_log_bin;
insert into t1 values (3);
--echo # Test that the session variable 'binlog_format',
--echo # 'binlog_direct_non_transactional_updates' and 'sql_log_bin' are
--echo # read-only inside an AUTOCOMMIT=0 transaction
--echo # with preceding non-transactional updates.
--echo # Current session values are ROW, FALSE, TRUE, respectively.
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_BINLOG_FORMAT
set @@session.binlog_format= statement;
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_BINLOG_DIRECT
set @@session.binlog_direct_non_transactional_updates= TRUE;
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_SQL_LOG_BIN
set @@session.sql_log_bin= FALSE;
SELECT @@session.binlog_format;
SELECT @@session.binlog_direct_non_transactional_updates;
SELECT @@session.sql_log_bin;
commit;
insert into t2 values (4);
--echo # Test that the session variable 'binlog_format',
--echo # 'binlog_direct_non_transactional_updates' and 'sql_log_bin' are
--echo # read-only inside an AUTOCOMMIT=0 transaction with
--echo # preceding transactional updates.
--echo # Current session values are ROW, FALSE, TRUE, respectively.
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_BINLOG_FORMAT
set @@session.binlog_format= statement;
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_BINLOG_DIRECT
set @@session.binlog_direct_non_transactional_updates= TRUE;
--error ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_SQL_LOG_BIN
set @@session.sql_log_bin= FALSE;
SELECT @@session.binlog_format;
SELECT @@session.binlog_direct_non_transactional_updates;
SELECT @@session.sql_log_bin;
commit;
begin;
insert into t2 values (5);
--echo # Test that the global variable 'binlog_format' and
--echo # 'binlog_direct_non_transactional_updates' and 'sql_log_bin' are
--echo # writable inside a transaction.
--echo # Current session values are ROW, FALSE, TRUE respectively.
SELECT @@global.binlog_format;
set @@global.binlog_format= statement;
set @@global.binlog_direct_non_transactional_updates= TRUE;
set @@global.sql_log_bin= FALSE;
SELECT @@global.binlog_format;
SELECT @@global.binlog_direct_non_transactional_updates;
SELECT @@global.sql_log_bin;
commit;
set @@global.binlog_format= @save_binlog_format;
set @@global.binlog_direct_non_transactional_updates= @save_binlog_dirct;
set @@global.sql_log_bin= @save_sql_log_bin;
create table t3(a int, b int) engine= innodb;
create table t4(a int) engine= innodb;
create table t5(a int) engine= innodb;
delimiter |;
eval 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 |
delimiter ;|
--echo # Test that the session variable 'binlog_format' is read-only
--echo # in sub-statements.
--echo # Current session value is ROW.
--error ER_STORED_FUNCTION_PREVENTS_SWITCH_BINLOG_FORMAT
insert into t3(a,b) values(1,1);
SELECT @@session.binlog_format;
create table t6(a int, b int) engine= innodb;
create table t7(a int) engine= innodb;
create table t8(a int) engine= innodb;
delimiter |;
eval create trigger tr2 after insert on t6 for each row begin
insert into t7(a) values(1);
set @@session.binlog_direct_non_transactional_updates= TRUE;
insert into t7(a) values(2);
insert into t8(a) values(3);
end |
delimiter ;|
--echo # Test that the session variable
--echo # 'binlog_direct_non_transactional_updates' is
--echo # read-only in sub-statements.
--echo # Current session value is FALSE.
--error ER_STORED_FUNCTION_PREVENTS_SWITCH_BINLOG_DIRECT
insert into t6(a,b) values(1,1);
SELECT @@session.binlog_direct_non_transactional_updates;
create table t9(a int, b int) engine= innodb;
create table t10(a int) engine= innodb;
create table t11(a int) engine= innodb;
delimiter |;
eval create trigger tr3 after insert on t9 for each row begin
insert into t10(a) values(1);
set @@session.sql_log_bin= TRUE;
insert into t10(a) values(2);
insert into t11(a) values(3);
end |
delimiter ;|
--echo # Test that the session variable 'sql_log_bin' is
--echo # read-only in sub-statements.
--echo # Current session value is FALSE.
--error ER_STORED_FUNCTION_PREVENTS_SWITCH_SQL_LOG_BIN
insert into t9(a,b) values(1,1);
SELECT @@session.sql_log_bin;
drop table t1;
drop table t2;
drop table t3;
drop table t4;
drop table t5;
drop table t6;
drop table t7;
drop table t8;
drop table t9;
drop table t10;
drop table t11;