SELECT 
  product_id 
FROM 
  cscart_product_popularity 
WHERE 
  product_id IN (
    11870, 11871, 11872, 11873, 11874, 11875, 
    11876, 11877, 11878, 11879, 11880, 
    11881, 11882, 11883, 11884, 11885, 
    11886
  )

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "3.74"
    },
    "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": 17,
      "rows_produced_per_join": 17,
      "filtered": "100.00",
      "using_index": true,
      "cost_info": {
        "read_cost": "2.04",
        "eval_cost": "1.70",
        "prefix_cost": "3.74",
        "data_read_per_join": "544"
      },
      "used_columns": [
        "product_id"
      ],
      "attached_condition": "(`gaseus`.`cscart_product_popularity`.`product_id` in (11870,11871,11872,11873,11874,11875,11876,11877,11878,11879,11880,11881,11882,11883,11884,11885,11886))"
    }
  }
}