DESC sys.innodb_buffer_stats_by_table;
Field	Type	Null	Key	Default	Extra
object_schema	text	YES		NULL	
object_name	text	YES		NULL	
allocated	text	YES		NULL	
data	text	YES		NULL	
pages	bigint(21)	NO		0	
pages_hashed	bigint(21)	NO		0	
pages_old	bigint(21)	NO		0	
rows_cached	decimal(44,0)	YES		NULL	
CREATE TABLE t1(a INT PRIMARY KEY) ENGINE=InnoDB;
SELECT * FROM sys.innodb_buffer_stats_by_table
where object_schema = 'test' and object_name = 't1';
object_schema	object_name	allocated	data	pages	pages_hashed	pages_old	rows_cached
test	t1	16.00 KiB	0 bytes	1	0	0	0
DESC sys.x$innodb_buffer_stats_by_table;
Field	Type	Null	Key	Default	Extra
object_schema	text	YES		NULL	
object_name	text	YES		NULL	
allocated	decimal(43,0)	YES		NULL	
data	decimal(43,0)	YES		NULL	
pages	bigint(21)	NO		0	
pages_hashed	bigint(21)	NO		0	
pages_old	bigint(21)	NO		0	
rows_cached	decimal(44,0)	NO		0	
SELECT * FROM sys.x$innodb_buffer_stats_by_table
where object_schema = 'test' and object_name = 't1';
object_schema	object_name	allocated	data	pages	pages_hashed	pages_old	rows_cached
test	t1	16384	0	1	0	0	0
DROP TABLE t1;
