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 (
    415304, 415296, 415297, 415303, 415291, 
    415290, 415228, 415289, 415308, 415240, 
    427824, 415310, 415305, 427787, 415219, 
    415294, 415302, 415311, 415299, 415242, 
    415300, 415224, 415238, 415217, 415312, 
    415211, 427780, 415241, 415298, 415307, 
    415288, 415232, 427775, 415293, 427786, 
    427782, 427823, 415295, 415306, 415235, 
    427781, 428031, 427738, 427829, 415309, 
    428033, 428032, 427821, 427777, 415292, 
    427779, 427778, 427788, 427826, 427789, 
    415213, 435511, 435512, 435513, 435515, 
    435514, 435516, 435517
  )

Query time 0.00151

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "271.02"
    },
    "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": 63,
          "rows_produced_per_join": 63,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "75.68",
            "eval_cost": "12.60",
            "prefix_cost": "88.28",
            "data_read_per_join": "1008"
          },
          "used_columns": [
            "product_id",
            "parent_product_id",
            "group_id"
          ],
          "attached_condition": "(`webmarco`.`p`.`product_id` in (415304,415296,415297,415303,415291,415290,415228,415289,415308,415240,427824,415310,415305,427787,415219,415294,415302,415311,415299,415242,415300,415224,415238,415217,415312,415211,427780,415241,415298,415307,415288,415232,427775,415293,427786,427782,427823,415295,415306,415235,427781,428031,427738,427829,415309,428033,428032,427821,427777,415292,427779,427778,427788,427826,427789,415213,435511,435512,435513,435515,435514,435516,435517))"
        }
      },
      {
        "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": 63,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "63.00",
            "eval_cost": "12.60",
            "prefix_cost": "163.88",
            "data_read_per_join": "24K"
          },
          "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": 89,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "89.28",
            "eval_cost": "17.86",
            "prefix_cost": "271.02",
            "data_read_per_join": "9K"
          },
          "used_columns": [
            "feature_id",
            "purpose",
            "group_id"
          ]
        }
      }
    ]
  }
}