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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 (
    9937, 9573, 9574, 9575, 9576, 9577, 9672, 
    9578, 9638, 9643, 9671, 9581, 9582, 
    9584, 9585, 8687, 9685, 9954, 9681, 
    9682, 9955, 9683, 9686, 9956, 9758, 
    9612, 9730, 9616, 8933, 9732, 9735, 
    9587, 9589, 9599, 8936, 9565, 9600, 
    9604, 9606, 9947, 9621, 9610, 8939, 
    9611, 9664, 9665, 9748, 9564, 9750, 
    9623, 9958, 9960, 9666, 9952, 9959, 
    9949, 9753, 9944, 9754, 9562, 9756, 
    8983, 9673, 9961, 9957, 9757, 9626, 
    9627, 9629, 9630, 9632, 9633, 9635, 
    9640, 9945, 9950, 9641, 8945, 9625, 
    9645, 9647, 9677, 9648, 9953, 9650, 
    9921, 8941, 9922, 9923, 9925, 9924, 
    9745, 9651, 9652, 9746, 9654, 9926, 
    9655, 9927, 9734
  )

Query time 0.00057

JSON explain

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