SELECT price_price,shop_id,price_product_id, ATAN2(
SQRT(
 POWER(COS(RADIANS(52.15948046601807)) *SIN(RADIANS(shop_location_long - 4.491133689880371)), 2) +
POWER(COS(RADIANS(shop_location_lat)) * SIN(RADIANS(52.15948046601807)) -
SIN(RADIANS(shop_location_lat)) * COS(RADIANS(52.15948046601807)) *
COS(RADIANS(shop_location_long - 4.491133689880371)), 2)),  (SIN(RADIANS(shop_location_lat)) * SIN(RADIANS(52.15948046601807)) +    COS(RADIANS(shop_location_lat)) * COS(RADIANS(52.15948046601807)) *   COS(RADIANS(shop_location_long - 4.491133689880371)))) * 6372.795 AS distance
 FROM shops
LEFT OUTER JOIN prices ON price_shop_id = shop_id
HAVING distance < 0.9 AND price_product_id = 81509