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 (
    87354, 87352, 87353, 87378, 87376, 87377, 
    87374, 82509, 87373, 82508, 82537, 
    82547, 91482, 82532, 82545, 82546, 
    89571, 82544, 89569, 92584, 92585, 
    92586, 92590, 92591, 92592, 93951, 
    93952, 93953, 93954, 93955, 93956, 
    94838, 95004, 95005, 95006, 95007, 
    95008, 95009, 95046, 95047, 95048, 
    95057, 95058, 95059, 95060, 95061, 
    95062, 95066, 95067, 95068, 95328, 
    95329, 95330, 95344, 95345, 95346, 
    95349, 95352, 95358, 95359, 95452, 
    95536, 95537, 95538, 95539, 95540, 
    95541, 95552, 95553, 95554, 96177, 
    96178, 96179, 96180, 96191, 96192, 
    96828, 96829, 96830, 96831, 96834, 
    96835, 96836, 96837, 96838, 96887, 
    96888, 96889, 96890, 96891, 96892, 
    96931, 96932, 96933, 96942, 96943
  )

Query time 0.00087

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 (87354,87352,87353,87378,87376,87377,87374,82509,87373,82508,82537,82547,91482,82532,82545,82546,89571,82544,89569,92584,92585,92586,92590,92591,92592,93951,93952,93953,93954,93955,93956,94838,95004,95005,95006,95007,95008,95009,95046,95047,95048,95057,95058,95059,95060,95061,95062,95066,95067,95068,95328,95329,95330,95344,95345,95346,95349,95352,95358,95359,95452,95536,95537,95538,95539,95540,95541,95552,95553,95554,96177,96178,96179,96180,96191,96192,96828,96829,96830,96831,96834,96835,96836,96837,96838,96887,96888,96889,96890,96891,96892,96931,96932,96933,96942,96943))",
          "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"
          ]
        }
      }
    ]
  }
}