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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 (
    8462, 8126, 8522, 8162, 8174, 8423, 8171, 
    8173, 8139, 8180, 8170, 7507, 8138, 
    7510, 7074, 8424, 8158, 7205, 8072, 
    7076, 8128, 7202, 7163, 8422, 7189, 
    7511, 7193
  )

Query time 0.00020

JSON explain

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