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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 (
    809, 5139, 5133, 5132, 5131, 5140, 6256, 
    6257, 6267, 6259, 6224, 6226, 6238, 
    6246, 6235, 6242, 6740, 6244, 6239, 
    6241, 6237, 6208, 6247, 6738, 6255, 
    6243, 6240, 6737, 6206, 6252, 6260, 
    6258, 6207, 6209, 6741, 6266, 6250, 
    6269, 6236, 6268, 4238, 2756, 4239, 
    3913, 3910, 4619, 3916, 3898
  )

Query time 0.00015

JSON explain

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