SELECT 
  product_id 
FROM 
  cscart_product_popularity 
WHERE 
  product_id IN (
    11194, 11193, 11192, 11191, 11190, 11189, 
    11188, 11187, 11186, 11185, 11184, 
    11183, 11182, 11181, 11180, 11179, 
    11178, 11177, 11176, 11175, 11174
  )

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "4.56"
    },
    "table": {
      "table_name": "cscart_product_popularity",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "total"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id"
      ],
      "key_length": "3",
      "rows_examined_per_scan": 21,
      "rows_produced_per_join": 21,
      "filtered": "100.00",
      "using_index": true,
      "cost_info": {
        "read_cost": "2.46",
        "eval_cost": "2.10",
        "prefix_cost": "4.56",
        "data_read_per_join": "672"
      },
      "used_columns": [
        "product_id"
      ],
      "attached_condition": "(`gaseus`.`cscart_product_popularity`.`product_id` in (11194,11193,11192,11191,11190,11189,11188,11187,11186,11185,11184,11183,11182,11181,11180,11179,11178,11177,11176,11175,11174))"
    }
  }
}