sql optimisation for affinity searches. A new index was added which wasn't added retro-actively to existing DBs as an update. It isn't clear if this helps sites any more than just restricting the abook table to certain channel_id's is (and this field is already indexed).
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@@ -33,7 +33,8 @@ CREATE TABLE IF NOT EXISTS `abook` (
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KEY `abook_profile` (`abook_profile`),
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KEY `abook_dob` (`abook_dob`),
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KEY `abook_connected` (`abook_connected`),
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KEY `abook_rating` (`abook_rating`)
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KEY `abook_rating` (`abook_rating`),
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KEY `abook_channel_closeness` (`book_channel`,`abook_closeness`)
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) ENGINE=MyISAM DEFAULT CHARSET=utf8;
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-- --------------------------------------------------------
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