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glv/gist:703997

Created November 17, 2010 20:16
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USE INDEX with Active Record finders for Rails 3
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gistfile1.rb
# for background, see http://m.onkey.org/use-index-with-active-record-finders
# and http://twitter.com/#!/dougalcorn/status/4963159878139904
from = "#{quoted_table_name} USE INDEX(index_activities_on_created_at_and_country_id)"
Activity.from(from).where('created_at >= ? AND country_id = ?', 10.days.ago, 79).all
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