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Mar 3, 2013, 12:55 #1
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- Feb 2011
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Save lowercase username or make case insensitive queries?
Duplicate millions of username to faster search or use LOWER queries? Or in other words how slow is LOWER(username)=LOWER('$username').
I guess use LOWER is the way but I'm concerned about the performance of using LOWER.
I'm using utf8_bin, so my MySQL is case sensitive, I should stop using it, at least for that table?