SELECT 
  f.feature_id, 
  f.purpose, 
  p.product_id, 
  p.parent_product_id, 
  g.id, 
  g.code 
FROM 
  q_product_variation_group_features AS f 
  INNER JOIN q_product_variation_groups AS g ON f.group_id = g.id 
  INNER JOIN q_product_variation_group_products AS p ON f.group_id = p.group_id 
WHERE 
  p.product_id IN (
    41339, 29354, 29395, 29396, 30848, 30922, 
    31133, 13615, 13626, 13652, 10455, 
    10456, 1519, 1520, 1521, 1524, 1525, 
    1526, 1527, 1143, 1142, 1141, 1140, 
    1139, 1138, 1137
  )

Query time 0.00048

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "124.81"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "p",
          "access_type": "range",
          "possible_keys": [
            "PRIMARY",
            "idx_group_id"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "product_id"
          ],
          "key_length": "4",
          "rows_examined_per_scan": 26,
          "rows_produced_per_join": 26,
          "filtered": "100.00",
          "index_condition": "(`portal`.`p`.`product_id` in (41339,29354,29395,29396,30848,30922,31133,13615,13626,13652,10455,10456,1519,1520,1521,1524,1525,1526,1527,1143,1142,1141,1140,1139,1138,1137))",
          "cost_info": {
            "read_cost": "57.21",
            "eval_cost": "5.20",
            "prefix_cost": "62.41",
            "data_read_per_join": "416"
          },
          "used_columns": [
            "product_id",
            "parent_product_id",
            "group_id"
          ]
        }
      },
      {
        "table": {
          "table_name": "g",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "id"
          ],
          "key_length": "4",
          "ref": [
            "portal.p.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 26,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "26.00",
            "eval_cost": "5.20",
            "prefix_cost": "93.61",
            "data_read_per_join": "19K"
          },
          "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": "4",
          "ref": [
            "portal.p.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 26,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "26.00",
            "eval_cost": "5.20",
            "prefix_cost": "124.81",
            "data_read_per_join": "2K"
          },
          "used_columns": [
            "feature_id",
            "purpose",
            "group_id"
          ]
        }
      }
    ]
  }
}