Marko Mäkelä  
		
	
	2fb31821de 
	
	
	MDEV-11984 Avoid accessing SYS_TABLESPACES unnecessarily  
		
			... 
			The following INFORMATION_SCHEMA views were unnecessarily retrieving
the data from the SYS_TABLESPACES table instead of directly fetching
it from the fil_system cache:
information_schema.innodb_tablespaces_encryption
information_schema.innodb_tablespaces_scrubbing
InnoDB always loads all tablespace metadata into memory at startup
and never evicts it while the tablespace exists.
With this fix, accessing these views will be much faster and use less
memory, and include data about all tablespaces, including undo
tablespaces.
The view information_schema.innodb_sys_tablespaces will still reflect
the contents of the SYS_TABLESPACES table. 
		
	 
 
		2018-03-22 18:01:29 +02:00 
	 
	
	
	
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