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 (
    101143, 101144, 101145, 101146, 101147, 
    101148, 101149, 101150, 101151, 101152, 
    101153, 101154, 101155, 101156, 101157, 
    101158, 101159, 101160, 101161, 101162, 
    101163, 101164, 101165, 101166, 101167, 
    101168, 101169, 101170, 101171, 101172, 
    101173, 101174, 101175, 101176, 101177, 
    101178, 101179, 101180, 101181, 101182, 
    101183, 101184, 101185, 101186, 101187, 
    101188, 101189, 101190, 101191, 101192, 
    101193, 101194, 101195, 101196, 101197, 
    101198, 101199, 101200, 101201, 101202, 
    101203, 101204, 101205, 101206, 101207, 
    101208, 101209, 101210, 101211, 101212, 
    101213, 101214, 101215, 101216, 101217, 
    101218, 101219, 101220, 101221, 101222, 
    101223, 101224, 101225, 101226, 101227, 
    101228, 101229, 101230, 101231, 101232, 
    101233, 101234, 101235, 101236, 101237, 
    101238
  )

Query time 0.00075

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.80"
    },
    "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": "1.00",
            "eval_cost": "0.10",
            "prefix_cost": "1.45",
            "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 (101143,101144,101145,101146,101147,101148,101149,101150,101151,101152,101153,101154,101155,101156,101157,101158,101159,101160,101161,101162,101163,101164,101165,101166,101167,101168,101169,101170,101171,101172,101173,101174,101175,101176,101177,101178,101179,101180,101181,101182,101183,101184,101185,101186,101187,101188,101189,101190,101191,101192,101193,101194,101195,101196,101197,101198,101199,101200,101201,101202,101203,101204,101205,101206,101207,101208,101209,101210,101211,101212,101213,101214,101215,101216,101217,101218,101219,101220,101221,101222,101223,101224,101225,101226,101227,101228,101229,101230,101231,101232,101233,101234,101235,101236,101237,101238))",
          "cost_info": {
            "read_cost": "0.25",
            "eval_cost": "0.10",
            "prefix_cost": "1.80",
            "data_read_per_join": "16"
          },
          "used_columns": [
            "product_id",
            "parent_product_id",
            "group_id"
          ]
        }
      }
    ]
  }
}