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EXPLAIN select `id`, `title`, `excerpt`, `body`, `created_at`, `counter`, `category_id` from `posts` where `category_id` = 60 order by `created_at` desc limit 6- 211 строк
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EXPLAIN select `id`, `title`, `excerpt`, `body`, `created_at`, `counter`, `category_id` from `posts` where `category_id` = 55 order by `created_at` desc limit 6- 20 строк
ВС
EXPLAIN select `id`, `title`, `excerpt`, `body`, `created_at`, `counter`, `category_id` from `posts` where `category_id` = 60 order by `created_at` desc limit 6- 211 строк
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