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SELECT 
  product_id, 
  amount 
FROM 
  cscart_warehouses_sum_products_amount 
WHERE 
  1 
  AND product_id IN (
    846, 817, 816, 787, 819, 781, 760, 758, 
    752, 751, 750, 749, 747, 732, 731, 723, 
    717, 707, 673, 650, 647, 644, 641, 639, 
    636, 624, 616, 210, 197, 155, 51
  )

Query time 0.00025

JSON explain

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