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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 (
    3541, 3540, 7763, 4956, 5114, 3338, 3998, 
    4959, 5205, 2645, 7301, 7299, 7300, 
    2646, 2647, 2644, 1410, 5154, 5150, 
    5153, 2648, 5152, 5155, 5151
  )

Query time 0.00032

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}