SELECT 
  q_images.*, 
  q_images_links.*, 
  q_common_descriptions.description AS alt, 
  q_images.image_id AS images_image_id 
FROM 
  q_images_links 
  LEFT JOIN q_images ON q_images_links.image_id = q_images.image_id 
  LEFT JOIN q_common_descriptions ON q_common_descriptions.object_id = q_images.image_id 
  AND q_common_descriptions.object_holder = 'images' 
  AND q_common_descriptions.lang_code = 'en' 
WHERE 
  q_images_links.object_type = 'product' 
  AND q_images_links.type = 'A' 
  AND q_images_links.object_id IN (
    '30864', '30865', '30866', '30867', 
    '30868', '30869', '30870', '30871', 
    '30872', '30873', '30874', '30875', 
    '30876', '30877', '30878', '30879', 
    '30880', '30881', '30882', '30883', 
    '30884', '30885', '30886', '30887', 
    '30888', '30889', '30890', '30891', 
    '30892', '30893', '30894', '30895'
  ) 
ORDER BY 
  q_images_links.position, 
  q_images_links.pair_id

Query time 0.00122

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "209.61"
    },
    "ordering_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "37.00"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "q_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": 37,
            "rows_produced_per_join": 37,
            "filtered": "100.00",
            "index_condition": "((`portal`.`q_images_links`.`object_type` = 'product') and (`portal`.`q_images_links`.`type` = 'A') and (`portal`.`q_images_links`.`object_id` in ('30864','30865','30866','30867','30868','30869','30870','30871','30872','30873','30874','30875','30876','30877','30878','30879','30880','30881','30882','30883','30884','30885','30886','30887','30888','30889','30890','30891','30892','30893','30894','30895')))",
            "cost_info": {
              "read_cost": "76.41",
              "eval_cost": "7.40",
              "prefix_cost": "83.81",
              "data_read_per_join": "3K"
            },
            "used_columns": [
              "pair_id",
              "object_id",
              "object_type",
              "image_id",
              "detailed_id",
              "type",
              "position"
            ]
          }
        },
        {
          "table": {
            "table_name": "q_images",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "image_id"
            ],
            "key_length": "4",
            "ref": [
              "portal.q_images_links.image_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 37,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "37.00",
              "eval_cost": "7.40",
              "prefix_cost": "128.21",
              "data_read_per_join": "28K"
            },
            "used_columns": [
              "image_id",
              "image_path",
              "image_x",
              "image_y",
              "is_high_res"
            ]
          }
        },
        {
          "table": {
            "table_name": "q_common_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "object_id",
              "lang_code",
              "object_holder"
            ],
            "key_length": "107",
            "ref": [
              "portal.q_images.image_id",
              "const",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 37,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "37.00",
              "eval_cost": "7.40",
              "prefix_cost": "172.61",
              "data_read_per_join": "21K"
            },
            "used_columns": [
              "object_id",
              "description",
              "lang_code",
              "object_holder"
            ],
            "attached_condition": "<if>(is_not_null_compl(q_common_descriptions), (`portal`.`q_common_descriptions`.`object_id` = `portal`.`q_images`.`image_id`), true)"
          }
        }
      ]
    }
  }
}