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 (
    90140, 90155, 82444, 84068, 84076, 87360, 
    82537, 84094, 90139, 90154, 87355, 
    87419, 82523, 90296, 90303, 82538, 
    83944, 84088, 82525, 90203, 90214, 
    87417, 84093, 85972, 90153, 90168, 
    82438, 87418, 90757, 90285, 90293, 
    82522, 90295, 90302, 84056, 84064, 
    82547, 82443, 91482, 82437, 87416, 
    90152, 90167, 85971, 84067, 84075, 
    82532, 84092, 84055, 84063, 82545, 
    85966, 87415, 90294, 90301, 90131, 
    90132, 83943, 84087, 90756, 90250, 
    90258, 90180, 90181, 82524, 90202, 
    90213, 84054, 84062, 90151, 90166, 
    85970, 84091, 90146, 90161, 87414, 
    89565, 82517, 90300, 90307, 84053, 
    84061, 83942, 84086, 82546, 89571, 
    90231, 90246, 84066, 84074, 87413, 
    90201, 90212, 90137, 90138, 84090
  )

Query time 0.00069

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.05"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "f",
          "access_type": "ALL",
          "possible_keys": [
            "idx_group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "0.25",
            "eval_cost": "0.10",
            "prefix_cost": "0.35",
            "data_read_per_join": "104"
          },
          "used_columns": [
            "feature_id",
            "purpose",
            "group_id"
          ]
        }
      },
      {
        "table": {
          "table_name": "g",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "id"
          ],
          "key_length": "3",
          "ref": [
            "nuie_scalesta_net.f.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "0.25",
            "eval_cost": "0.10",
            "prefix_cost": "0.70",
            "data_read_per_join": "400"
          },
          "used_columns": [
            "id",
            "code"
          ]
        }
      },
      {
        "table": {
          "table_name": "p",
          "access_type": "ref",
          "possible_keys": [
            "PRIMARY",
            "idx_group_id"
          ],
          "key": "idx_group_id",
          "used_key_parts": [
            "group_id"
          ],
          "key_length": "3",
          "ref": [
            "nuie_scalesta_net.f.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "index_condition": "(`nuie_scalesta_net`.`p`.`product_id` in (90140,90155,82444,84068,84076,87360,82537,84094,90139,90154,87355,87419,82523,90296,90303,82538,83944,84088,82525,90203,90214,87417,84093,85972,90153,90168,82438,87418,90757,90285,90293,82522,90295,90302,84056,84064,82547,82443,91482,82437,87416,90152,90167,85971,84067,84075,82532,84092,84055,84063,82545,85966,87415,90294,90301,90131,90132,83943,84087,90756,90250,90258,90180,90181,82524,90202,90213,84054,84062,90151,90166,85970,84091,90146,90161,87414,89565,82517,90300,90307,84053,84061,83942,84086,82546,89571,90231,90246,84066,84074,87413,90201,90212,90137,90138,84090))",
          "cost_info": {
            "read_cost": "0.25",
            "eval_cost": "0.10",
            "prefix_cost": "1.05",
            "data_read_per_join": "16"
          },
          "used_columns": [
            "product_id",
            "parent_product_id",
            "group_id"
          ]
        }
      }
    ]
  }
}