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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 (
    802, 207, 205, 206, 201, 204, 203, 202, 
    597, 589, 1750, 713, 466, 535, 423, 534, 
    501, 1493, 531, 465, 588, 644, 640, 646, 
    643, 642, 641, 645, 507, 814, 815, 218, 
    1119, 1120, 1121, 861, 859, 437, 428, 
    843, 862, 1108, 267, 857, 1749, 396, 
    1659, 791, 474, 426, 793, 794, 1147, 
    849, 850, 852, 853, 851, 855, 854, 856, 
    208, 209, 210, 886, 555, 630, 554, 1109, 
    320, 318, 319, 969, 970, 252, 454, 639, 
    49
  )

Query time 0.00062

JSON explain

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