# id :bigint(8) not null, primary key
# user_id :bigint(8) not null
# friend_user_id :bigint(8) not null
+# created_at :datetime
#
# Indexes
#
-# friends_user_id_idx (user_id)
-# user_id_idx (friend_user_id)
+# index_friends_on_user_id_and_created_at (user_id,created_at)
+# user_id_idx (friend_user_id)
#
# Foreign Keys
#