SELECT 
  cscart_products_categories.product_id, 
  GROUP_CONCAT(
    IF(
      cscart_products_categories.link_type = "M", 
      CONCAT(
        cscart_products_categories.category_id, 
        "M"
      ), 
      cscart_products_categories.category_id
    )
  ) AS category_ids 
FROM 
  cscart_products_categories 
  INNER JOIN cscart_categories ON cscart_categories.category_id = cscart_products_categories.category_id 
  AND cscart_categories.storefront_id IN (0, 1) 
  AND (
    cscart_categories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_categories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_categories.usergroup_ids
    )
  ) 
  AND cscart_categories.status IN ('A', 'H') 
WHERE 
  cscart_products_categories.product_id IN (
    66092, 66091, 66090, 66089, 66088, 66087, 
    66086, 66085, 66084, 66083, 66082, 
    66081, 66080, 66079, 66078, 66077, 
    66076, 66075, 66074, 66073, 66072, 
    66071, 66070, 66069, 66068, 66067, 
    66066, 66065, 66064, 66063
  ) 
GROUP BY 
  cscart_products_categories.product_id