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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 (
    13547, 18032, 18031, 18030, 12900, 11591, 
    18056, 8034, 7666, 8257, 8063, 10729, 
    10697, 7714, 7625, 11585, 8733, 7481, 
    8120, 10998, 7279, 13244, 7655, 7633
  )

Query time 0.00070

JSON explain

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