Sandbox

SELECT 
  cscart_shippings.shipping_id, 
  cscart_shipping_descriptions.shipping, 
  cscart_shipping_descriptions.delivery_time, 
  cscart_shipping_descriptions.description, 
  cscart_shippings.rate_calculation, 
  cscart_shippings.service_params, 
  cscart_shippings.destination, 
  cscart_shippings.min_weight, 
  cscart_shippings.max_weight, 
  cscart_shippings.service_id, 
  cscart_shippings.free_shipping, 
  cscart_shipping_services.module, 
  cscart_shipping_services.code as service_code, 
  cscart_shippings.is_address_required 
FROM 
  cscart_shippings 
  LEFT JOIN cscart_shipping_descriptions ON cscart_shippings.shipping_id = cscart_shipping_descriptions.shipping_id 
  LEFT JOIN cscart_shipping_services ON cscart_shipping_services.service_id = cscart_shippings.service_id 
  LEFT JOIN cscart_storefronts_shippings AS storefronts_shippings ON storefronts_shippings.shipping_id = cscart_shippings.shipping_id 
WHERE 
  cscart_shippings.status = 'A' 
  AND cscart_shippings.shipping_id IN ('') 
  AND (
    cscart_shippings.min_weight <= 0.001 
    AND (
      cscart_shippings.max_weight >= 0.001 
      OR cscart_shippings.max_weight = 0.00
    )
  ) 
  AND cscart_shipping_descriptions.lang_code = 'en' 
  AND (
    cscart_shippings.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_shippings.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_shippings.usergroup_ids
    )
  ) 
  AND (
    storefronts_shippings.storefront_id = 1 
    OR storefronts_shippings.storefront_id IS NULL
  ) 
ORDER BY 
  cscart_shippings.position

Query time 0.00062

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}