SELECT @@global.innodb_flush_checkpoint_debug;
@@global.innodb_flush_checkpoint_debug
0
SET @@global.innodb_flush_checkpoint_debug=1;
SELECT @@global.innodb_flush_checkpoint_debug;
@@global.innodb_flush_checkpoint_debug
1
SET @@global.innodb_flush_checkpoint_debug=0;
SELECT @@global.innodb_flush_checkpoint_debug;
@@global.innodb_flush_checkpoint_debug
0
SET @@session.innodb_flush_checkpoint_debug=1;
ERROR HY000: Variable 'innodb_flush_checkpoint_debug' is a GLOBAL variable and should be set with SET GLOBAL
SELECT @@session.innodb_flush_checkpoint_debug;
ERROR HY000: Variable 'innodb_flush_checkpoint_debug' is a GLOBAL variable
