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 (
    11508, 11147, 11306, 11446, 11472, 11531, 
    11086, 11126, 11166, 11291, 11337, 
    11348, 11411, 11477, 11167, 11256, 
    11309, 11430, 11479, 11600, 11362, 
    11414, 11520, 11633, 11128, 11390, 
    11535, 11199, 11399, 11530, 11236, 
    11289, 11462, 11136, 11193, 11352, 
    11458, 11267, 11293, 11308, 11388, 
    11143, 11152, 11231, 11238, 11453, 
    11439, 11202, 11274, 11360, 11522, 
    11198, 11272, 11300, 11500, 11168, 
    11217, 11233, 11287, 11364, 11218, 
    11226, 11232, 11271, 11164, 11288, 
    11526, 11024, 11220, 11080, 11204, 
    11200, 11270, 10991, 11003, 11211, 
    11216, 11240, 11084, 11210
  )

Query time 0.00170

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "112.01"
    },
    "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": 80,
          "rows_produced_per_join": 80,
          "filtered": "100.00",
          "index_condition": "(`softwarepirmam_hewadelivard_cscart_4`.`p`.`product_id` in (11508,11147,11306,11446,11472,11531,11086,11126,11166,11291,11337,11348,11411,11477,11167,11256,11309,11430,11479,11600,11362,11414,11520,11633,11128,11390,11535,11199,11399,11530,11236,11289,11462,11136,11193,11352,11458,11267,11293,11308,11388,11143,11152,11231,11238,11453,11439,11202,11274,11360,11522,11198,11272,11300,11500,11168,11217,11233,11287,11364,11218,11226,11232,11271,11164,11288,11526,11024,11220,11080,11204,11200,11270,10991,11003,11211,11216,11240,11084,11210))",
          "cost_info": {
            "read_cost": "48.01",
            "eval_cost": "8.00",
            "prefix_cost": "56.01",
            "data_read_per_join": "1K"
          },
          "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": "3",
          "ref": [
            "softwarepirmam_hewadelivard_cscart_4.p.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 80,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "20.00",
            "eval_cost": "8.00",
            "prefix_cost": "84.01",
            "data_read_per_join": "31K"
          },
          "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": [
            "softwarepirmam_hewadelivard_cscart_4.p.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 80,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "20.00",
            "eval_cost": "8.00",
            "prefix_cost": "112.01",
            "data_read_per_join": "8K"
          },
          "used_columns": [
            "feature_id",
            "purpose",
            "group_id"
          ]
        }
      }
    ]
  }
}