SELECT 
  video_id, 
  position 
FROM 
  cscart_cp_video_object_links 
WHERE 
  object_id = 8 
  AND object_type = 'R' 
  AND type = 'I' 
ORDER BY 
  position ASC

Query time 0.00035

JSON explain

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