lit2430 opened a new issue, #12263:
URL: https://github.com/apache/doris/issues/12263

   ### 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
   
   doris 0.15.3 and  doris  1.1
   
   ### What's Wrong?
   
   Using the unique model, when I use the insert SQL  to write data where 
partition field is null, the data can be written normally. But under normal 
circumstances, if the partition field  is null, the data  did not write 
successfully。
   
   ### What You Expected?
   
   Is this normal or a bug?
   
   ### How to Reproduce?
   
   ##### create table SQL :
   
   ```SQL
   CREATE TABLE `insert_table_test` (
     `column1` varchar(50) NOT NULL COMMENT "",
     `column2` decimal(19, 0) NOT NULL COMMENT "",
     `column3` decimal(19, 0) NOT NULL COMMENT "",
     `column4` decimal(10, 0) NULL COMMENT "",
     `column5` decimal(19, 0) NOT NULL COMMENT "",
     `column6` datetime NULL COMMENT "",
     `column7` decimal(19, 0) NOT NULL COMMENT "",
     `column8` varchar(150) NULL COMMENT "",
     `column9` varchar(150) NULL COMMENT "",
     `column10` float NOT NULL COMMENT "",
     `column11` decimal(19, 0) NOT NULL COMMENT ""
   ) ENGINE=OLAP
   UNIQUE KEY(`column1`, `column2`, `column3`, `column4`, `column5`, `column6`)
   COMMENT "测试表"
   PARTITION BY RANGE(`column6`)
   (PARTITION P_000000 VALUES [('0000-01-01 00:00:00'), ('2022-08-01 
00:00:00')),
   PARTITION P_202208 VALUES [('2022-08-01 00:00:00'), ('2022-09-01 00:00:00')),
   PARTITION P_202209 VALUES [('2022-09-01 00:00:00'), ('2022-10-01 00:00:00')),
   PARTITION P_202210 VALUES [('2022-10-01 00:00:00'), ('2022-11-01 00:00:00')),
   PARTITION P_202211 VALUES [('2022-11-01 00:00:00'), ('2022-12-01 00:00:00')))
   DISTRIBUTED BY HASH(`column1`, `column2`, `column3`, `column4`) BUCKETS 1
   PROPERTIES (
   "replication_allocation" = "tag.location.default: 3",
   "dynamic_partition.enable" = "true",
   "dynamic_partition.time_unit" = "MONTH",
   "dynamic_partition.time_zone" = "Asia/Shanghai",
   "dynamic_partition.start" = "-2147483648",
   "dynamic_partition.end" = "2",
   "dynamic_partition.prefix" = "P_",
   "dynamic_partition.replication_allocation" = "tag.location.default: 3",
   "dynamic_partition.buckets" = "1",
   "dynamic_partition.create_history_partition" = "false",
   "dynamic_partition.history_partition_num" = "-1",
   "dynamic_partition.hot_partition_num" = "0",
   "dynamic_partition.reserved_history_periods" = "NULL",
   "dynamic_partition.start_day_of_month" = "1",
   "in_memory" = "false",
   "storage_format" = "V2"
   )
   ```
   
   ##### insert SQL :
   
   ```sql
   INSERT INTO `insert_table_test`(`column1`, `column2`, `column3`, `column4`, 
`column5`, `column6`, `column7`, `column8`, `column9`, `column10`, `column11`) 
VALUES ('01', 7420300, 4293715, 1, 3342582, NULL, 4, 'S202102280036', NULL, 
120, 3653756);
   ```
   
   ##### select SQL:
   
   ```
   SELECT  * FROM insert_table_test
   ```
   
   
   
   ### Anything Else?
   
   NONE
   
   ### Are you willing to submit PR?
   
   - [ ] 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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