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authorbeerlington <pete@lette.us>2012-08-05 10:22:05 -0400
committerbeerlington <pete@lette.us>2012-08-05 11:35:18 -0400
commitd1f7590577c61e33bcfa1b146971c47924823238 (patch)
treea5051bc961784669e5c0247da6ef3b75959737ad /activerecord/lib/active_record/fixtures
parentdaf9f9ffa608b24c475403b9a0b3839ca373b2db (diff)
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Changing AR:CollectionAssociation#empty? to use #exists?
COUNT(*) queries can be slow in PostgreSQL, #exists? avoids this by selecting a single record.
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