#
# BUG#47863
# This test verifies if the session variable 'binlog_format' 
# is 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;
create table t1 (a int) engine= myisam;
create table t2 (a int) engine= innodb;

SELECT @@session.binlog_format;
SET AUTOCOMMIT=1;
--echo # Test that the session variable 'binlog_format' 
--echo # is writable outside a transaction.
set @@session.binlog_format= statement;
set @@session.binlog_direct_non_transactional_updates= TRUE;
SELECT @@session.binlog_format;
SELECT @@session.binlog_direct_non_transactional_updates;

begin;
--echo # Test that the session variable 'binlog_format' is read-only
--echo # inside a transaction with no preceding updates.
--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;

  insert into t2 values (1);
--echo # Test that the session variable 'binlog_format' is read-only
--echo # inside a transaction with preceding transactional updates.
--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;
commit;

begin;
  insert into t1 values (2);
--echo # Test that the session variable 'binlog_format' is read-only
--echo # inside a transaction with preceding non-transactional updates.
--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= FALSE;
commit;

--echo # Test that the session variable 'binlog_format' is writable 
--echo # 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;
SELECT @@session.binlog_direct_non_transactional_updates;

insert into t1 values (4);
--echo # Test that the session variable 'binlog_format' is read-only inside an
--echo # AUTOCOMMIT=0 transaction with preceding non-transactional updates.
--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;
SELECT @@session.binlog_format;
SELECT @@session.binlog_direct_non_transactional_updates;
commit;

insert into t2 values (5);
--echo # Test that the session variable 'binlog_format' is read-only inside an
--echo # AUTOCOMMIT=0 transaction with preceding transactional updates.
--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= TRUE;
SELECT @@session.binlog_format;
SELECT @@session.binlog_direct_non_transactional_updates;
commit;

begin;
  insert into t2 values (6);
--echo # Test that the global variable 'binlog_format' is writable
--echo # inside a transaction.
  SELECT @@global.binlog_format;
  set @@global.binlog_format= statement;
  set @@global.binlog_direct_non_transactional_updates= TRUE;
  SELECT @@global.binlog_format;
  SELECT @@global.binlog_direct_non_transactional_updates;
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;
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.
--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 @@global.binlog_direct_non_transactional_updates= FALSE;
    insert into t7(a) values(2);
    insert into t8(a) values(3);
end |
delimiter ;|

--echo # Test that the session variable 'binlog_format' is read-only
--echo # in sub-statements.
--error ER_STORED_FUNCTION_PREVENTS_SWITCH_BINLOG_DIRECT
insert into t6(a,b) values(1,1);
SELECT @@session.binlog_direct_non_transactional_updates;

drop table t1;
drop table t2;
drop table t3;
drop table t4;
drop table t5;
drop table t6;
drop table t7;
drop table t8;