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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 (
    1669, 1400, 1673, 403, 358, 1167, 708, 
    1177, 1195, 1208, 1178, 1849, 1846, 
    1848, 1847, 1770, 1769, 1449, 1341, 
    1592, 1474, 1733, 1898, 1899, 1270, 
    1459, 1477, 1891, 1218, 114, 1810, 113, 
    79, 653, 1465, 1494, 1620, 1619, 1624, 
    1681, 1680, 1902
  )

Query time 0.00057

JSON explain

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