select p.products_fsk18, p.products_shippingtime, p.products_model, p.products_ean, pd.products_name, pd.products_name2, p.products_quantity, p.products_quantity_self, p.products_image, p.products_weight, p.products_id, p.manufacturers_id, p.products_price, p.products_vpe, p.products_page_url, p.hit, p.id1c, p.free_shipping, p.raiting, p.products_vpe_status, p.products_vpe_value, p.products_discount_allowed, p.products_tax_class_id from categories c, products_description pd, products_to_categories p2c, products p where p.products_status = '1' and p.parent = '0' and p.products_id = p2c.products_id and pd.products_id = p2c.products_id and pd.language_id = '1' and ( p2c.categories_id = c.categories_id and p2c.categories_id in (19,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189) ) and m.manufacturers_id in (5) ORDER BY p.products_quantity+p.products_quantity_self desc, pd.products_name

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Проблема с MySQL. Как узнать причину ошибки.