[I] The doris default value cannot be displayed [doris-flink-connector]

[via GitHub]

kaiwangleo opened a new issue, #259:
URL: https://github.com/apache/doris-flink-connector/issues/259

   ### Search before asking
   
   - [X] I had searched in the 
[issues](https://github.com/apache/incubator-doris/issues?q=is%3Aissue) and 
found no similar issues.
   
   
   ### Version
   
   flink-doris-connector-1.16
   
   ### What's Wrong?
   
   datasource  mysql ：
   
   CREATE TABLE `dwd_biz_car_track_v8` (
     `id` bigint NOT NULL COMMENT '主键ID',
     `project_id` bigint DEFAULT NULL COMMENT '项目ID',
     `project_name` varchar(32) CHARACTER SET utf8mb4 COLLATE 
utf8mb4_general_ci DEFAULT NULL COMMENT '项目名称',
     `etl_time` datetime DEFAULT CURRENT_TIMESTAMP,
     PRIMARY KEY (`id`) USING BTREE
   ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci 
COMMENT='车辆轨迹';
   
   sink doris table ：
   
   CREATE TABLE if not exists dwd_biz_car_track_v8(
     `id` bigint NOT NULL COMMENT '主键ID',
     `project_id` bigint DEFAULT NULL COMMENT '项目ID',
     `project_name` varchar(32)  DEFAULT NULL COMMENT '项目名称',
      db_name varchar(255) DEFAULT 'data_chengdu',
      table_name varchar(255) DEFAULT 'dwd_biz_car_track_v8',
      etl_timestamp datetime DEFAULT current_timestamp comment 'etl更新时间',
      `etl_time` datetime 
   
   )
   UNIQUE KEY(`id`)
   comment '车辆轨迹v5'
   DISTRIBUTED BY HASH(`id`) BUCKETS 2
   PROPERTIES (
   
       "replication_allocation" = "tag.location.default: 1", -- 测试
       "compression"="zstd",
       "enable_unique_key_merge_on_write" = "true"
   );
   
   When data is synchronized, the default value of the doris table is not 
displayed。
   ![Uploading image.png…]()
   
   
   
   
   ### What You Expected?
   
   want to bellow result
   
   
![image](https://github.com/apache/doris-flink-connector/assets/44354575/d7348444-a118-4e66-9800-5b65d05b40be)
   
   
   ### How to Reproduce?
   
   _No response_
   
   ### Anything Else?
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [X] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of 
Conduct](https://www.apache.org/foundation/policies/conduct)
   


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