1030 - Got error 122 from storage engine

select p.products_id, p.manufacturers_id, p.products_model, p.products_price, p.products_image, p.products_date_added, pd.products_name, pd.products_description, m.manufacturers_name, cd.categories_name, p.products_tax_class_id, IF(s.status, s.specials_new_products_price, NULL) as specials_new_products_price, IF(s.status, s.specials_new_products_price, p.products_price) as final_price from products_description pd, products p left join manufacturers m on p.manufacturers_id = m.manufacturers_id left join specials s on p.products_id = s.products_id, products_to_categories p2c LEFT JOIN categories_description cd ON p2c.categories_id = cd.categories_id where p.products_status = '1' and p.products_to_rss='1' and p.products_id = p2c.products_id and pd.products_id = p2c.products_id and pd.language_id = '1' GROUP BY p.products_id ORDER BY p.products_id DESC LIMIT 20

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