Re: Using an ENUM column in an index
> how much raceID is needed in some of my indexes
I expect it depends on query filters and data distribution, so to find the answer to that, I'd look at Explain Extended output, and performance, with and without that column in the index (with query caching off of course).
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Re: Using an ENUM column in an index
March 19, 2015 11:16AM
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