SELECT 
  feature_id, 
  feature_type 
FROM 
  cscart_product_features 
WHERE 
  feature_id IN (
    923, 847, 18, 889, 890, 825, 905, 549, 
    906, 907, 915, 839, 829, 908, 840, 841, 
    838, 834, 831, 903, 832, 902, 836, 909, 
    843, 845, 846, 910, 827, 912, 918, 920, 
    917, 919, 911, 904, 837, 826, 456, 844, 
    833, 922, 851, 913, 901, 921, 914, 548, 
    842, 850, 830, 646, 835, 852, 848, 849, 
    916, 853
  )

Query time 0.00041

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "32.26"
    },
    "table": {
      "table_name": "cscart_product_features",
      "access_type": "ALL",
      "possible_keys": [
        "PRIMARY"
      ],
      "rows_examined_per_scan": 136,
      "rows_produced_per_join": 57,
      "filtered": "42.65",
      "cost_info": {
        "read_cost": "20.66",
        "eval_cost": "11.60",
        "prefix_cost": "32.26",
        "data_read_per_join": "68K"
      },
      "used_columns": [
        "feature_id",
        "feature_type"
      ],
      "attached_condition": "(`danishecarter_latest`.`cscart_product_features`.`feature_id` in (923,847,18,889,890,825,905,549,906,907,915,839,829,908,840,841,838,834,831,903,832,902,836,909,843,845,846,910,827,912,918,920,917,919,911,904,837,826,456,844,833,922,851,913,901,921,914,548,842,850,830,646,835,852,848,849,916,853))"
    }
  }
}