http://aguti.livejournal.com/ ([identity profile] aguti.livejournal.com) wrote in [personal profile] green_fr 2006-08-09 08:07 am (UTC)

not exists всегда тормозит, в оличие от exists - ведь ему надо перелопатить всю таблицу, прежде чем ответить на вопрос.
А какие индексы у тебя уже есть?
(31 comments)

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