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SELECT 
  f.feature_id, 
  f.purpose, 
  p.product_id, 
  p.parent_product_id, 
  g.id, 
  g.code 
FROM 
  cscart_product_variation_group_features AS f 
  INNER JOIN cscart_product_variation_groups AS g ON f.group_id = g.id 
  INNER JOIN cscart_product_variation_group_products AS p ON f.group_id = p.group_id 
WHERE 
  p.product_id IN (
    9984, 9985, 9986, 9987, 9988, 9989, 9990, 
    9991, 9992, 9993, 9994, 9995, 9996, 
    9997, 9998, 9999, 10747, 10748, 10749, 
    10750, 10751, 10752, 9972, 9973, 9975, 
    9976, 9977, 9978, 9979, 10179, 10180, 
    10523, 10073, 10077, 10076, 10086, 
    10085, 10084, 10083, 10082, 10081, 
    10080, 10079, 10584, 10594, 10739, 
    10740, 10741, 10742, 10759, 10760, 
    10761, 10762, 10763, 10764, 10765, 
    10766, 10778, 10779, 10780, 10781, 
    10782, 10783, 10784
  )

Query time 0.00034

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}