top | item 9989601 (no title) midom | 10 years ago LIMIT 2 is also exposed to this issue, at different data ratios (in my tests up to LIMIT 142, I went through the math). discuss order hn newest acqq|10 years ago Can you please explain: Does MySQL use index over (b,c) or not where evaluating "where b=X" or not? As I've said, I'd expect any engine which has an index to use it.
acqq|10 years ago Can you please explain: Does MySQL use index over (b,c) or not where evaluating "where b=X" or not? As I've said, I'd expect any engine which has an index to use it.
acqq|10 years ago