SELECT 
  feature_id, 
  feature_type 
FROM 
  cscart_product_features 
WHERE 
  feature_id IN (
    1041, 1042, 18, 549, 1032, 1036, 1033, 
    1034, 456, 1040, 1030, 1039, 1035, 548, 
    646, 1037, 1031, 1038
  )

Query time 0.00028

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "35.13"
    },
    "table": {
      "table_name": "cscart_product_features",
      "access_type": "ALL",
      "possible_keys": [
        "PRIMARY"
      ],
      "rows_examined_per_scan": 148,
      "rows_produced_per_join": 18,
      "filtered": "12.16",
      "cost_info": {
        "read_cost": "31.53",
        "eval_cost": "3.60",
        "prefix_cost": "35.13",
        "data_read_per_join": "21K"
      },
      "used_columns": [
        "feature_id",
        "feature_type"
      ],
      "attached_condition": "(`danishecarter_latest`.`cscart_product_features`.`feature_id` in (1041,1042,18,549,1032,1036,1033,1034,456,1040,1030,1039,1035,548,646,1037,1031,1038))"
    }
  }
}