SELECT 
  feature_id, 
  feature_type 
FROM 
  cscart_product_features 
WHERE 
  feature_id IN (
    1055, 1151, 18, 549, 1046, 1047, 45, 1048, 
    1137, 1052, 1054, 1043, 1053, 1049, 
    548, 1051, 1045, 1050
  )

Query time 0.00037

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "32.06"
    },
    "table": {
      "table_name": "cscart_product_features",
      "access_type": "ALL",
      "possible_keys": [
        "PRIMARY"
      ],
      "rows_examined_per_scan": 133,
      "rows_produced_per_join": 17,
      "filtered": "13.53",
      "cost_info": {
        "read_cost": "28.46",
        "eval_cost": "3.60",
        "prefix_cost": "32.06",
        "data_read_per_join": "21K"
      },
      "used_columns": [
        "feature_id",
        "feature_type"
      ],
      "attached_condition": "(`danishecarter_25_march`.`cscart_product_features`.`feature_id` in (1055,1151,18,549,1046,1047,45,1048,1137,1052,1054,1043,1053,1049,548,1051,1045,1050))"
    }
  }
}