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 (
    339484, 339755, 430807, 431068, 339697, 
    431359, 430875, 431041, 430825, 430868, 
    431085, 431156, 339681, 339828, 430925, 
    431053, 431164, 381705, 430819, 430820, 
    430901, 431013, 431049, 339596, 430654, 
    430658, 431144, 431148, 430691, 430989, 
    430746, 430808, 430812, 430834, 430629, 
    430680, 431136, 339774, 339765, 430843, 
    339728, 339836, 339843, 431110, 339725, 
    339734, 339816, 431080, 339655, 339839, 
    339599, 431118, 431161, 339466, 430673, 
    430890, 339845, 430789, 430859, 430906, 
    430922, 339582, 339723, 431082, 431126, 
    430657, 430678, 339702, 430737, 430822, 
    430860, 431111, 339674, 430689, 431044, 
    339754, 381704, 430795, 430832, 430892, 
    430914, 430921, 430635, 339802, 339821, 
    430663, 430838, 430854, 431174, 339486, 
    430650, 430959, 431456, 430815, 339727, 
    381697, 431169, 430672, 430695, 430950
  )

Query time 0.00149

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "430.18"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "p",
          "access_type": "range",
          "possible_keys": [
            "PRIMARY",
            "idx_group_id"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "product_id"
          ],
          "key_length": "3",
          "rows_examined_per_scan": 100,
          "rows_produced_per_join": 100,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "120.12",
            "eval_cost": "20.00",
            "prefix_cost": "140.12",
            "data_read_per_join": "1K"
          },
          "used_columns": [
            "product_id",
            "parent_product_id",
            "group_id"
          ],
          "attached_condition": "(`webmarco`.`p`.`product_id` in (339484,339755,430807,431068,339697,431359,430875,431041,430825,430868,431085,431156,339681,339828,430925,431053,431164,381705,430819,430820,430901,431013,431049,339596,430654,430658,431144,431148,430691,430989,430746,430808,430812,430834,430629,430680,431136,339774,339765,430843,339728,339836,339843,431110,339725,339734,339816,431080,339655,339839,339599,431118,431161,339466,430673,430890,339845,430789,430859,430906,430922,339582,339723,431082,431126,430657,430678,339702,430737,430822,430860,431111,339674,430689,431044,339754,381704,430795,430832,430892,430914,430921,430635,339802,339821,430663,430838,430854,431174,339486,430650,430959,431456,430815,339727,381697,431169,430672,430695,430950))"
        }
      },
      {
        "table": {
          "table_name": "g",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "id"
          ],
          "key_length": "3",
          "ref": [
            "webmarco.p.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 100,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "100.00",
            "eval_cost": "20.00",
            "prefix_cost": "260.12",
            "data_read_per_join": "39K"
          },
          "used_columns": [
            "id",
            "code"
          ]
        }
      },
      {
        "table": {
          "table_name": "f",
          "access_type": "ref",
          "possible_keys": [
            "idx_group_id"
          ],
          "key": "idx_group_id",
          "used_key_parts": [
            "group_id"
          ],
          "key_length": "3",
          "ref": [
            "webmarco.p.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 141,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "141.72",
            "eval_cost": "28.34",
            "prefix_cost": "430.18",
            "data_read_per_join": "14K"
          },
          "used_columns": [
            "feature_id",
            "purpose",
            "group_id"
          ]
        }
      }
    ]
  }
}