SELECT 
  product_id 
FROM 
  cscart_product_popularity 
WHERE 
  product_id IN (
    277935, 277936, 277937, 277938, 277939, 
    277940, 277941, 277942, 277943, 277945, 
    277946, 277947, 277948, 277949, 277950, 
    277951, 277952, 277953, 277954
  )

Query time 0.00057

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "8.63"
    },
    "table": {
      "table_name": "cscart_product_popularity",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "total"
      ],
      "key": "total",
      "used_key_parts": [
        "product_id"
      ],
      "key_length": "3",
      "rows_examined_per_scan": 19,
      "rows_produced_per_join": 19,
      "filtered": "100.00",
      "using_index": true,
      "cost_info": {
        "read_cost": "4.83",
        "eval_cost": "3.80",
        "prefix_cost": "8.63",
        "data_read_per_join": "608"
      },
      "used_columns": [
        "product_id"
      ],
      "attached_condition": "(`webmarco`.`cscart_product_popularity`.`product_id` in (277935,277936,277937,277938,277939,277940,277941,277942,277943,277945,277946,277947,277948,277949,277950,277951,277952,277953,277954))"
    }
  }
}