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 (
    91863, 92227, 82402, 88146, 88589, 89589, 
    92210, 87786, 87874, 85554, 85577, 
    87792, 87798, 87880, 86366, 86368, 
    86806, 92373, 91900, 87873, 90317, 
    90319, 90320, 84244, 85645, 87388, 
    88390, 91428, 91430, 82560, 82565, 
    82569, 82573, 85570, 82562, 82566, 
    82570, 84243, 86361, 86367, 87785, 
    87790, 87796, 88395, 88585, 90266, 
    90273, 91968, 86360, 86887, 90844, 
    92383, 92384, 92385, 92386, 92387, 
    92388, 92389, 84242, 84289, 88584, 
    91889, 91890, 91891, 92333, 92334, 
    92335, 92336, 82555, 85581, 86888, 
    82553, 88389, 88391, 92365, 82391, 
    82554, 86890, 87789, 87795, 91864, 
    88388, 92374, 82559, 85576, 85584, 
    86352, 88095, 82428, 82552, 82564, 
    82568, 82572, 85572, 88392, 91976
  )

Query time 0.00079

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 (91863,92227,82402,88146,88589,89589,92210,87786,87874,85554,85577,87792,87798,87880,86366,86368,86806,92373,91900,87873,90317,90319,90320,84244,85645,87388,88390,91428,91430,82560,82565,82569,82573,85570,82562,82566,82570,84243,86361,86367,87785,87790,87796,88395,88585,90266,90273,91968,86360,86887,90844,92383,92384,92385,92386,92387,92388,92389,84242,84289,88584,91889,91890,91891,92333,92334,92335,92336,82555,85581,86888,82553,88389,88391,92365,82391,82554,86890,87789,87795,91864,88388,92374,82559,85576,85584,86352,88095,82428,82552,82564,82568,82572,85572,88392,91976))",
          "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"
          ]
        }
      }
    ]
  }
}