Sandbox

SELECT 
  product_id, 
  amount 
FROM 
  cscart_warehouses_sum_products_amount 
WHERE 
  1 
  AND product_id IN (
    650, 647, 645, 644, 641, 639, 636, 624, 
    622, 620, 619, 618, 616, 615, 608, 607, 
    600, 597, 584, 573, 561, 556, 553, 549, 
    545, 541
  )

Query time 0.00014

JSON explain

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