SET @start_global_value = @@global.binlog_annotate_row_events;
select @@global.binlog_annotate_row_events;
@@global.binlog_annotate_row_events
1
select @@session.binlog_annotate_row_events;
@@session.binlog_annotate_row_events
1
show global variables like 'binlog_annotate_row_events';
Variable_name	Value
binlog_annotate_row_events	ON
show session variables like 'binlog_annotate_row_events';
Variable_name	Value
binlog_annotate_row_events	ON
select * from information_schema.global_variables where variable_name='binlog_annotate_row_events';
VARIABLE_NAME	VARIABLE_VALUE
BINLOG_ANNOTATE_ROW_EVENTS	ON
select * from information_schema.session_variables where variable_name='binlog_annotate_row_events';
VARIABLE_NAME	VARIABLE_VALUE
BINLOG_ANNOTATE_ROW_EVENTS	ON
set global binlog_annotate_row_events=ON;
select @@global.binlog_annotate_row_events;
@@global.binlog_annotate_row_events
1
set global binlog_annotate_row_events=OFF;
select @@global.binlog_annotate_row_events;
@@global.binlog_annotate_row_events
0
set global binlog_annotate_row_events=1;
select @@global.binlog_annotate_row_events;
@@global.binlog_annotate_row_events
1
set session binlog_annotate_row_events=ON;
select @@session.binlog_annotate_row_events;
@@session.binlog_annotate_row_events
1
set session binlog_annotate_row_events=OFF;
select @@session.binlog_annotate_row_events;
@@session.binlog_annotate_row_events
0
set session binlog_annotate_row_events=1;
select @@session.binlog_annotate_row_events;
@@session.binlog_annotate_row_events
1
set global binlog_annotate_row_events=1.1;
ERROR 42000: Incorrect argument type to variable 'binlog_annotate_row_events'
set session binlog_annotate_row_events=1e1;
ERROR 42000: Incorrect argument type to variable 'binlog_annotate_row_events'
set session binlog_annotate_row_events="foo";
ERROR 42000: Variable 'binlog_annotate_row_events' can't be set to the value of 'foo'
SET @@global.binlog_annotate_row_events = @start_global_value;