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 (
    13439, 13440, 13441, 13442, 13443, 13444, 
    13445, 13446, 13447, 13448, 13449, 
    13450, 13451, 13452, 13453, 13454, 
    13455, 13456, 13457, 13458, 13459, 
    13460, 13461, 13462
  )

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.09366448,
    "nested_loop": [
      {
        "table": {
          "table_name": "p",
          "access_type": "range",
          "possible_keys": ["PRIMARY", "idx_group_id"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "loops": 1,
          "rows": 24,
          "cost": 0.02605648,
          "filtered": 100,
          "attached_condition": "p.product_id in (13439,13440,13441,13442,13443,13444,13445,13446,13447,13448,13449,13450,13451,13452,13453,13454,13455,13456,13457,13458,13459,13460,13461,13462)"
        }
      },
      {
        "table": {
          "table_name": "f",
          "access_type": "ref",
          "possible_keys": ["idx_group_id"],
          "key": "idx_group_id",
          "key_length": "3",
          "used_key_parts": ["group_id"],
          "ref": ["u508912950_dev_2025.p.group_id"],
          "loops": 24,
          "rows": 1,
          "cost": 0.04532224,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "g",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["id"],
          "ref": ["u508912950_dev_2025.p.group_id"],
          "loops": 24,
          "rows": 1,
          "cost": 0.02228576,
          "filtered": 100
        }
      }
    ]
  }
}

Result

feature_id purpose product_id parent_product_id id code
601 group_variation_catalog_item 13439 0 31 PV-2A901B48
601 group_variation_catalog_item 13440 0 32 PV-3C572D69
601 group_variation_catalog_item 13441 0 33 PV-4E813F02
601 group_variation_catalog_item 13442 0 34 PV-5G294H73
601 group_variation_catalog_item 13443 0 35 PV-6I635J14
601 group_variation_catalog_item 13444 0 36 PV-7K046L85
601 group_variation_catalog_item 13445 0 37 PV-8M750N26
601 group_variation_catalog_item 13446 0 38 PV-9O167P97
601 group_variation_catalog_item 13447 0 39 PV-0Q481R38
601 group_variation_catalog_item 13448 0 40 PV-1S928T59
601 group_variation_catalog_item 13449 0 41 PV-2U539V01
601 group_variation_catalog_item 13450 0 42 PV-3W864X72
601 group_variation_catalog_item 13451 0 43 PV-4Y175Z83
601 group_variation_catalog_item 13452 0 44 PV-5A086B94
601 group_variation_catalog_item 13453 0 45 PV-6C917D05
601 group_variation_catalog_item 13454 0 46 PV-7E248F16
601 group_variation_catalog_item 13455 0 47 PV-8G579H27
601 group_variation_catalog_item 13456 0 48 PV-9I801J38
601 group_variation_catalog_item 13457 0 49 PV-0K132L49
601 group_variation_catalog_item 13458 0 50 PV-1M463N50
601 group_variation_catalog_item 13459 0 51 PV-2O794P61
601 group_variation_catalog_item 13460 0 52 PV-3Q025R72
601 group_variation_catalog_item 13461 0 53 PV-4S356T83
601 group_variation_catalog_item 13462 0 54 PV-5U687V94