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 (
    889, 890, 888, 932, 933, 675, 911, 914, 
    924, 920, 918
  )

Query time 0.00048

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "52.81"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "p",
          "access_type": "range",
          "possible_keys": [
            "PRIMARY",
            "idx_group_id"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "product_id"
          ],
          "key_length": "3",
          "rows_examined_per_scan": 11,
          "rows_produced_per_join": 11,
          "filtered": "100.00",
          "index_condition": "(`cscart`.`p`.`product_id` in (889,890,888,932,933,675,911,914,924,920,918))",
          "cost_info": {
            "read_cost": "24.21",
            "eval_cost": "2.20",
            "prefix_cost": "26.41",
            "data_read_per_join": "176"
          },
          "used_columns": [
            "product_id",
            "parent_product_id",
            "group_id"
          ]
        }
      },
      {
        "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": [
            "cscart.p.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 11,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "11.00",
            "eval_cost": "2.20",
            "prefix_cost": "39.61",
            "data_read_per_join": "1K"
          },
          "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": [
            "cscart.p.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 11,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "11.00",
            "eval_cost": "2.20",
            "prefix_cost": "52.81",
            "data_read_per_join": "4K"
          },
          "used_columns": [
            "id",
            "code"
          ]
        }
      }
    ]
  }
}

Result

feature_id purpose product_id parent_product_id id code
549 group_variation_catalog_item 675 0 52 PV-B93B50238
549 group_variation_catalog_item 890 0 97 PV-5B45F4A13
549 group_variation_catalog_item 911 0 102 PV-BA275FADA
549 group_variation_catalog_item 914 0 103 PV-1DC3584D9
549 group_variation_catalog_item 918 0 104 PV-D4D9076CA
549 group_variation_catalog_item 920 0 105 PV-0F7CBBE69
549 group_variation_catalog_item 924 0 107 PV-4D84064F5