SELECT 
  cscart_images.*, 
  cscart_images_links.*, 
  cscart_common_descriptions.description AS alt, 
  cscart_images.image_id AS images_image_id 
FROM 
  cscart_images_links 
  LEFT JOIN cscart_images ON cscart_images_links.image_id = cscart_images.image_id 
  LEFT JOIN cscart_common_descriptions ON cscart_common_descriptions.object_id = cscart_images.image_id 
  AND cscart_common_descriptions.object_holder = 'images' 
  AND cscart_common_descriptions.lang_code = 'en' 
WHERE 
  cscart_images_links.object_type = 'variant_image' 
  AND cscart_images_links.type = 'V' 
  AND cscart_images_links.object_id IN (
    748, 747, 782, 781, 786, 785, 788, 787, 
    790, 789, 812, 811, 814, 813, 816, 815, 
    820, 819, 826, 825, 830, 829, 832, 831, 
    838, 837, 844, 843, 850, 849, 852, 851, 
    898, 897, 902, 901, 904, 903, 906, 905, 
    928, 927, 930, 929, 932, 931, 936, 935, 
    942, 941, 946, 945, 948, 947, 954, 953, 
    960, 959, 966, 965, 968, 967
  ) 
ORDER BY 
  cscart_images_links.position, 
  cscart_images_links.pair_id

Query time 0.00173

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "359.61"
    },
    "ordering_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "62.00"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_images_links",
            "access_type": "range",
            "possible_keys": [
              "object_id"
            ],
            "key": "object_id",
            "used_key_parts": [
              "object_id",
              "object_type",
              "type"
            ],
            "key_length": "81",
            "rows_examined_per_scan": 62,
            "rows_produced_per_join": 62,
            "filtered": "100.00",
            "index_condition": "((`eshopuga_upgr_4122`.`cscart_images_links`.`object_type` = 'variant_image') and (`eshopuga_upgr_4122`.`cscart_images_links`.`type` = 'V') and (`eshopuga_upgr_4122`.`cscart_images_links`.`object_id` in (748,747,782,781,786,785,788,787,790,789,812,811,814,813,816,815,820,819,826,825,830,829,832,831,838,837,844,843,850,849,852,851,898,897,902,901,904,903,906,905,928,927,930,929,932,931,936,935,942,941,946,945,948,947,954,953,960,959,966,965,968,967)))",
            "cost_info": {
              "read_cost": "136.41",
              "eval_cost": "12.40",
              "prefix_cost": "148.81",
              "data_read_per_join": "5K"
            },
            "used_columns": [
              "pair_id",
              "object_id",
              "object_type",
              "image_id",
              "detailed_id",
              "type",
              "position"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_images",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "image_id"
            ],
            "key_length": "4",
            "ref": [
              "eshopuga_upgr_4122.cscart_images_links.image_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 62,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "62.00",
              "eval_cost": "12.40",
              "prefix_cost": "223.21",
              "data_read_per_join": "47K"
            },
            "used_columns": [
              "image_id",
              "image_path",
              "image_x",
              "image_y",
              "is_high_res"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_common_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "object_id",
              "lang_code",
              "object_holder"
            ],
            "key_length": "107",
            "ref": [
              "eshopuga_upgr_4122.cscart_images.image_id",
              "const",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 62,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "62.00",
              "eval_cost": "12.40",
              "prefix_cost": "297.61",
              "data_read_per_join": "36K"
            },
            "used_columns": [
              "object_id",
              "description",
              "lang_code",
              "object_holder"
            ],
            "attached_condition": "<if>(is_not_null_compl(cscart_common_descriptions), (`eshopuga_upgr_4122`.`cscart_common_descriptions`.`object_id` = `eshopuga_upgr_4122`.`cscart_images`.`image_id`), true)"
          }
        }
      ]
    }
  }
}