Re: Optimizing query
Posted by:
Rick James
Date: February 28, 2012 07:57PM
How many different values in `status`? If more than some precentage of the table has a particular status, the index will not be used.
Hmmmm... Arg1..31 Smells like days of the month. Shouldn't you have another table with
id -- for joining with your table
TINYINT UNSIGNED -- value 1..31
varchar(100)
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