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ALTER TABLE shoc_product
ADD FULLTEXT INDEX `art`
(`model` ASC);

SELECT p.product_id,p.model,

MATCH (p.`model`) AGAINST ('Подшипник полуоси 52701-4A000')p1,
MATCH (pd.`name`) AGAINST ('Подшипник полуоси 52701-4A000')p2,

pd.`name`
 FROM shoc_product p LEFT JOIN shoc_product_description pd ON (p.product_id = pd.product_id) LEFT JOIN shoc_product_to_store p2s ON (p.product_id = p2s.product_id)

WHERE

MATCH (p.`model`) AGAINST ('Подшипник полуоси 52701-4A000')
or
MATCH (pd.`name`) AGAINST ('Подшипник полуоси 52701-4A000')
order by p1 DESC,p2 DESC