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Use #find_one to test #exists? #26
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In many cases (such as with a non-indexed selector), `#find_one` can be notably faster than `#count`. In indexed cases, they should be about the same.
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LGTM |
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In many cases (such as with a non-indexed selector),
#find_onecan benotably faster than
#count. In indexed cases, they should be about thesame.
cc @codeclimate/review