SELECT 
  v.product_id, 
  v.feature_id, 
  v.value, 
  v.value_int, 
  v.variant_id, 
  f.feature_type, 
  fd.description, 
  fd.prefix, 
  fd.suffix, 
  vd.variant, 
  f.parent_id, 
  f.position, 
  gf.position as gposition 
FROM 
  cscart_product_features as f 
  LEFT JOIN cscart_product_features_values as v ON v.feature_id = f.feature_id 
  LEFT JOIN cscart_product_features_descriptions as fd ON fd.feature_id = v.feature_id 
  AND fd.lang_code = 'en' 
  LEFT JOIN cscart_product_feature_variants fv ON fv.variant_id = v.variant_id 
  LEFT JOIN cscart_product_feature_variant_descriptions as vd ON vd.variant_id = fv.variant_id 
  AND vd.lang_code = 'en' 
  LEFT JOIN cscart_product_features as gf ON gf.feature_id = f.parent_id 
  AND gf.feature_type = 'G' 
WHERE 
  f.status IN ('A') 
  AND v.product_id in (
    5253, 5814, 5251, 5751, 5740, 5839, 5813, 
    5825, 5838, 5738
  ) 
  AND f.display_on_catalog = 'Y' 
  AND (
    f.categories_path = '' 
    OR FIND_IN_SET(166, f.categories_path) 
    OR FIND_IN_SET(250, f.categories_path) 
    OR FIND_IN_SET(328, f.categories_path) 
    OR FIND_IN_SET(342, f.categories_path) 
    OR FIND_IN_SET(362, f.categories_path) 
    OR FIND_IN_SET(402, f.categories_path) 
    OR FIND_IN_SET(405, f.categories_path) 
    OR FIND_IN_SET(410, f.categories_path)
  ) 
  AND IF(
    f.parent_id, 
    (
      SELECT 
        status 
      FROM 
        cscart_product_features as df 
      WHERE 
        df.feature_id = f.parent_id
    ), 
    'A'
  ) IN ('A') 
  AND (
    v.variant_id != 0 
    OR (
      f.feature_type != 'C' 
      AND v.value != ''
    ) 
    OR (f.feature_type = 'C') 
    OR v.value_int != ''
  ) 
  AND v.lang_code = 'en' 
ORDER BY 
  fd.description, 
  fv.position

Query time 0.00302

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "125.77"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "nested_loop": [
        {
          "table": {
            "table_name": "v",
            "access_type": "range",
            "possible_keys": [
              "PRIMARY",
              "fl",
              "variant_id",
              "lang_code",
              "product_id",
              "fpl",
              "idx_product_feature_variant_id"
            ],
            "key": "product_id",
            "used_key_parts": [
              "product_id"
            ],
            "key_length": "3",
            "rows_examined_per_scan": 203,
            "rows_produced_per_join": 66,
            "filtered": "32.52",
            "index_condition": "(`softwarepirmam_hewadelivard_cscart_4`.`v`.`product_id` in (5253,5814,5251,5751,5740,5839,5813,5825,5838,5738))",
            "cost_info": {
              "read_cost": "87.26",
              "eval_cost": "6.60",
              "prefix_cost": "93.86",
              "data_read_per_join": "51K"
            },
            "used_columns": [
              "feature_id",
              "product_id",
              "variant_id",
              "value",
              "value_int",
              "lang_code"
            ],
            "attached_condition": "((`softwarepirmam_hewadelivard_cscart_4`.`v`.`lang_code` = 'en') and (`softwarepirmam_hewadelivard_cscart_4`.`v`.`feature_id` is not null))"
          }
        },
        {
          "table": {
            "table_name": "f",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY",
              "status"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "feature_id"
            ],
            "key_length": "3",
            "ref": [
              "softwarepirmam_hewadelivard_cscart_4.v.feature_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 6,
            "filtered": "9.53",
            "cost_info": {
              "read_cost": "16.50",
              "eval_cost": "0.63",
              "prefix_cost": "116.96",
              "data_read_per_join": "2K"
            },
            "used_columns": [
              "feature_id",
              "feature_type",
              "categories_path",
              "parent_id",
              "display_on_catalog",
              "status",
              "position"
            ],
            "attached_condition": "((`softwarepirmam_hewadelivard_cscart_4`.`f`.`status` = 'A') and (`softwarepirmam_hewadelivard_cscart_4`.`f`.`display_on_catalog` = 'Y') and ((`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path` = '') or (0 <> find_in_set(166,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(250,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(328,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(342,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(362,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(402,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(405,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(410,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`))) and (if(`softwarepirmam_hewadelivard_cscart_4`.`f`.`parent_id`,(/* select#2 */ select `softwarepirmam_hewadelivard_cscart_4`.`df`.`status` from `softwarepirmam_hewadelivard_cscart_4`.`cscart_product_features` `df` where (`softwarepirmam_hewadelivard_cscart_4`.`df`.`feature_id` = `softwarepirmam_hewadelivard_cscart_4`.`f`.`parent_id`)),'A') = 'A') and ((`softwarepirmam_hewadelivard_cscart_4`.`v`.`variant_id` <> 0) or ((`softwarepirmam_hewadelivard_cscart_4`.`f`.`feature_type` <> 'C') and (`softwarepirmam_hewadelivard_cscart_4`.`v`.`value` <> '')) or (`softwarepirmam_hewadelivard_cscart_4`.`f`.`feature_type` = 'C') or (`softwarepirmam_hewadelivard_cscart_4`.`v`.`value_int` <> 0)))",
            "attached_subqueries": [
              {
                "dependent": true,
                "cacheable": false,
                "query_block": {
                  "select_id": 2,
                  "cost_info": {
                    "query_cost": "0.35"
                  },
                  "table": {
                    "table_name": "df",
                    "access_type": "eq_ref",
                    "possible_keys": [
                      "PRIMARY"
                    ],
                    "key": "PRIMARY",
                    "used_key_parts": [
                      "feature_id"
                    ],
                    "key_length": "3",
                    "ref": [
                      "softwarepirmam_hewadelivard_cscart_4.f.parent_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": "440"
                    },
                    "used_columns": [
                      "feature_id",
                      "status"
                    ]
                  }
                }
              }
            ]
          }
        },
        {
          "table": {
            "table_name": "fd",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "feature_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "softwarepirmam_hewadelivard_cscart_4.v.feature_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 6,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "1.57",
              "eval_cost": "0.63",
              "prefix_cost": "119.16",
              "data_read_per_join": "14K"
            },
            "used_columns": [
              "feature_id",
              "description",
              "prefix",
              "suffix",
              "lang_code"
            ]
          }
        },
        {
          "table": {
            "table_name": "fv",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id"
            ],
            "key_length": "3",
            "ref": [
              "softwarepirmam_hewadelivard_cscart_4.v.variant_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 6,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "1.57",
              "eval_cost": "0.63",
              "prefix_cost": "121.36",
              "data_read_per_join": "7K"
            },
            "used_columns": [
              "variant_id",
              "position"
            ]
          }
        },
        {
          "table": {
            "table_name": "vd",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "softwarepirmam_hewadelivard_cscart_4.fv.variant_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 6,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "1.57",
              "eval_cost": "0.63",
              "prefix_cost": "123.57",
              "data_read_per_join": "19K"
            },
            "used_columns": [
              "variant_id",
              "variant",
              "lang_code"
            ]
          }
        },
        {
          "table": {
            "table_name": "gf",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "feature_id"
            ],
            "key_length": "3",
            "ref": [
              "softwarepirmam_hewadelivard_cscart_4.f.parent_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 6,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "1.57",
              "eval_cost": "0.63",
              "prefix_cost": "125.77",
              "data_read_per_join": "2K"
            },
            "used_columns": [
              "feature_id",
              "feature_type",
              "position"
            ],
            "attached_condition": "<if>(is_not_null_compl(gf), (`softwarepirmam_hewadelivard_cscart_4`.`gf`.`feature_type` = 'G'), true)"
          }
        }
      ]
    }
  }
}

Result

product_id feature_id value value_int variant_id feature_type description prefix suffix variant parent_id position gposition
5839 657 7483 E Brand MIKROTIK 0 0
5738 657 7483 E Brand MIKROTIK 0 0
5740 657 7483 E Brand MIKROTIK 0 0
5751 657 7483 E Brand MIKROTIK 0 0
5253 657 4743 E Brand Ubiquiti 0 0
5813 657 7483 E Brand MIKROTIK 0 0
5814 657 7483 E Brand MIKROTIK 0 0
5825 657 7483 E Brand MIKROTIK 0 0
5251 657 4743 E Brand Ubiquiti 0 0
5838 657 7483 E Brand MIKROTIK 0 0
5825 656 1559 S Color white 0 160
5814 656 1559 S Color white 0 160
5838 656 1559 S Color white 0 160
5751 656 1559 S Color white 0 160
5839 656 1559 S Color white 0 160
5813 656 1751 S Color Awesome Light Gray 0 160
5740 656 1559 S Color white 0 160
5738 656 1559 S Color white 0 160
5814 669 7564 S Maximum Device Rate ~35,532 Mbps (for 1518B frames) 0 280
5838 669 0.00 7584 S Maximum Device Rate Non-blocking throughput: 36 Gbps Switching capacity: 72 Gbps Forwarding rate: 53.6 million packets per second (Mpps) 0 280
5839 669 0.00 7588 S Maximum Device Rate Non-blocking throughput: 168 Gbps Switching capacity: 336 Gbps Forwarding rate: 235 Mpps 0 280
5738 669 7528 S Maximum Device Rate Non-blocking switching on all 16 × 10G ports 0 280
5740 669 6824 S Maximum Device Rate 56 Gbps switching capacity 0 280
5251 669 176.00 6820 S Maximum Device Rate 176 Gbps switching capacity 0 280
5813 669 7559 S Maximum Device Rate Non-blocking switching, ~88 Gbps capacity 0 280
5825 669 0.00 7572 S Maximum Device Rate Non-blocking Layer 2 throughput: 1518 byte frames: 975.3 kpps / 11,844 Mbps, 512 byte frames: 2,819.5 kpps / 11,548.9 Mbps, 64 byte frames: 17,857.1 kpps / 9,142.9 Mbps 0 280
5253 669 16.00 6834 S Maximum Device Rate 16 Gbps switching capacity 0 280
5751 669 128.00 7540 S Maximum Device Rate 128 Gbps switching capacity 0 280
5751 668 6823 S Maximum User Capacity Supports over 500 concurrent clients 0 270
5814 668 7563 S Maximum User Capacity the device is intended for high performance routing/switching, so “user capacity” depends heavily on usage, traffic, and features used 0 270
5253 668 6823 S Maximum User Capacity Supports over 500 concurrent clients 0 270
5813 668 7558 S Maximum User Capacity 16,384 (16K) MAC addresses 0 270
5825 668 6823 S Maximum User Capacity Supports over 500 concurrent clients 0 270
5839 668 0.00 7587 S Maximum User Capacity Up to 16,000, depending on network design and usage patterns 0 270
5738 668 7527 S Maximum User Capacity Not specified (approx. 4000), but supports full wire-speed switching across all ports 0 270
5740 668 6823 S Maximum User Capacity Supports over 500 concurrent clients 0 270
5838 668 0.00 7583 S Maximum User Capacity Up to 1,800, depending on network design and usage patterns 0 270
5251 668 6798 S Maximum User Capacity Supports over 1,000 concurrent clients 0 270
5251 663 6795 S Mounting Options Rackmount (1U) 0 220
5253 663 0.00 6832 S Mounting Options Desktop, Wall, Magnetic 0 220
5813 685 6800 S Mounting Options Rackmount (1U) 0 0
5838 685 7580 S Mounting Options Outdoor (IP54-rated enclosure); suitable for mounting on poles, towers, or walls 0 0
5825 685 7569 S Mounting Options Desktop / Wall 0 0
5839 685 6800 S Mounting Options Rackmount (1U) 0 0
5814 685 7560 S Mounting Options Rackmount (1U), standard 19-inch rack chassis 0 0
5751 685 6800 S Mounting Options Rackmount (1U) 0 0
5738 685 7525 S Mounting Options 1U rackmount (also usable on desktop) 0 0
5740 685 6800 S Mounting Options Rackmount (1U) 0 0
5814 665 7561 S Network Ports 16 × 10/100/1000 RJ45 Ethernet ports, 2 × 10G SFP+ cages 0 240
5839 665 48.00 7585 S Network Ports 48 × 10/100/1000 RJ45 (all with PoE-out support), 4 × 10G SFP+, 2 × 40G QSFP+ 0 240
5253 665 8.00 6833 S Network Ports 8 × 10/100/1000 RJ45 (7 × PoE+, 1 × PoE++), 2 × 10G SFP+ 0 240
5825 665 8.00 7570 S Network Ports 8 × 10/100/1000 RJ45, 4 × SFP (1.25G) 0 240
5813 665 7556 S Network Ports 24 × 10/100/1000 RJ45, 2 × 10G SFP+ 0 240
5751 665 20.00 7539 S Network Ports 20 × SFP, 4 × SFP+ (10G), 4 × Combo (RJ45/SFP) 0 240
5738 665 7526 S Network Ports 1 × Gigabit RJ45 + 16 × 10G SFP+ Power Support: Dual redundant internal PSUs, AC 100–240 V, 50/60 Hz, max ~42–44 W 0 240
5838 665 16.00 7581 S Network Ports 16 × 10/100/1000 RJ45 (with PoE-out support), 2 × 10G SFP+ 0 240
5740 665 24.00 7536 S Network Ports 24 × Gigabit Ethernet (PoE+), 4 × 10G SFP+ 0 240
5251 665 48.00 6818 S Network Ports 48 × 10/100/1000 RJ45 (40 × PoE+, 8 × PoE++), 4 × 10G SFP+ 0 240
5814 666 7562 S Power Support 2 internal AC power supply inputs, range: 100–240 V AC, Maximum power consumption: ~48 W 0 250
5839 666 0.00 7586 S Power Support Input: AC 100–240V, Max power consumption: 800W, Max PoE-out power: Low voltage (26V): 27A, High voltage (53V): 13.2A, Power supply included: 750W 0 250
5251 666 0.00 6819 S Power Support AC Input: 100–240V, 50/60Hz; DC Input: 44–57V 0 250
5838 666 0.00 7582 S Power Support Passive PoE-out (IEEE 802.3af/at) Maximum output per port: 1.1 A (when input voltage is 0 250
5825 666 0.00 7571 S Power Support AC Input: 10–57V via DC jack or Passive PoE-IN, Max Power Consumption: 13.5W 0 250
5253 666 6819 S Power Support AC Input: 100–240V, 50/60Hz; DC Input: 44–57V 0 250
5813 666 7557 S Power Support DC Input: 9–30 V (via DC jack or passive PoE-IN) Max Power Consumption: ~24 W 0 250
5751 666 6819 S Power Support AC Input: 100–240V, 50/60Hz; DC Input: 44–57V 0 250
5740 666 6819 S Power Support AC Input: 100–240V, 50/60Hz; DC Input: 44–57V 0 250
5738 666 0.00 7545 S Power Support Dual redundant internal PSUs, AC 100–240 V, 50/60 Hz, max ~42–44 W 0 250