Sandbox

SELECT 
  a.shipping_id, 
  a.company_id, 
  a.min_weight, 
  a.max_weight, 
  a.position, 
  a.status, 
  a.tax_ids, 
  a.usergroup_ids, 
  b.shipping, 
  b.delivery_time, 
  c.company AS company_name, 
  storefront_id 
FROM 
  ushop_shippings AS a 
  LEFT JOIN ushop_shipping_descriptions AS b ON a.shipping_id = b.shipping_id 
  AND b.lang_code = 'es' 
  LEFT JOIN ushop_companies AS c ON c.company_id = a.company_id 
  LEFT JOIN ushop_storefronts_shippings AS storefronts_shippings ON storefronts_shippings.shipping_id = a.shipping_id 
WHERE 
  1 = 1 
  AND (a.company_id = 2) 
  AND (
    storefronts_shippings.storefront_id IN (1) 
    OR storefronts_shippings.storefront_id IS NULL
  ) 
ORDER BY 
  a.position

Query time 0.00044

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "Impossible WHERE noticed after reading const tables"
  }
}