SELECT 
  product_id 
FROM 
  cscart_mb_ali_products 
WHERE 
  product_id IN (
    8500, 8501, 8502, 8514, 8519, 8520, 8521, 
    8522, 8524, 8525, 8526, 8527, 8528, 
    8529, 8530, 8539
  )

Query time 0.00016

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_mb_ali_products",
      "access_type": "range",
      "possible_keys": ["product_id"],
      "key": "product_id",
      "key_length": "4",
      "used_key_parts": ["product_id"],
      "rows": 16,
      "filtered": 100,
      "attached_condition": "cscart_mb_ali_products.product_id in (8500,8501,8502,8514,8519,8520,8521,8522,8524,8525,8526,8527,8528,8529,8530,8539)",
      "using_index": true
    }
  }
}