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what is mysql expression metric mean?
Does this mean the no of queries? Or something else?
Customer support service by UserEcho
Customer support service by UserEcho
Each mysql expression metric measure the own value. Example:
Heavy join rate - it's a percent of heavy (full join, range check and scan) operations
On-disk temporary table rate - it's a percent of temporary tables that was placed on disk instead of memory
Query cache miss rate - it's a percent of select operations which missed query cache
Innodb buffer pool usage - it's a percent of innodb pool usage