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Posted to commits@doris.apache.org by "didasai (via GitHub)" <gi...@apache.org> on 2023/11/20 10:27:11 UTC
[I] [Bug] 部分列更新默认值存在问题 [doris]
didasai opened a new issue, #27292:
URL: https://github.com/apache/doris/issues/27292
### Search before asking
- [X] I had searched in the [issues](https://github.com/apache/doris/issues?q=is%3Aissue) and found no similar issues.
### Version
2.0.2
### What's Wrong?
表结构如下：
```
CREATE TABLE `report_dsp_date_user3` (
`m_date` date NOT NULL,
`dsp_id` char(20) NOT NULL DEFAULT "",
`uvrate` double REPLACE_IF_NOT_NULL NULL DEFAULT "0" COMMENT '',
`uvrate_bid` double REPLACE_IF_NOT_NULL NULL DEFAULT "0" COMMENT '',
`uv_showsuc` bigint(20) REPLACE_IF_NOT_NULL NULL DEFAULT "0" COMMENT '',
`uv_click` bigint(20) REPLACE_IF_NOT_NULL NULL DEFAULT "0" COMMENT '',
`crdate` datetime MIN NOT NULL DEFAULT CURRENT_TIMESTAMP
) ENGINE=OLAP
AGGREGATE KEY(`m_date`, `dsp_id`)
COMMENT ''
PARTITION BY RANGE(`m_date`)
(PARTITION p20231108 VALUES [('2023-11-08'), ('2023-11-09')),
PARTITION p20231109 VALUES [('2023-11-09'), ('2023-11-10')),
PARTITION p20231110 VALUES [('2023-11-10'), ('2023-11-11')),
PARTITION p20231111 VALUES [('2023-11-11'), ('2023-11-12')),
PARTITION p20231112 VALUES [('2023-11-12'), ('2023-11-13')),
PARTITION p20231113 VALUES [('2023-11-13'), ('2023-11-14')),
PARTITION p20231114 VALUES [('2023-11-14'), ('2023-11-15')),
PARTITION p20231115 VALUES [('2023-11-15'), ('2023-11-16')),
PARTITION p20231116 VALUES [('2023-11-16'), ('2023-11-17')),
PARTITION p20231117 VALUES [('2023-11-17'), ('2023-11-18')),
PARTITION p20231118 VALUES [('2023-11-18'), ('2023-11-19')),
PARTITION p20231119 VALUES [('2023-11-19'), ('2023-11-20')),
PARTITION p20231120 VALUES [('2023-11-20'), ('2023-11-21')),
PARTITION p20231121 VALUES [('2023-11-21'), ('2023-11-22')),
PARTITION p20231122 VALUES [('2023-11-22'), ('2023-11-23')),
PARTITION p20231123 VALUES [('2023-11-23'), ('2023-11-24')))
DISTRIBUTED BY HASH(`dsp_id`) BUCKETS 10
PROPERTIES (
"replication_allocation" = "tag.location.default: 3",
"is_being_synced" = "false",
"dynamic_partition.enable" = "true",
"dynamic_partition.time_unit" = "DAY",
"dynamic_partition.time_zone" = "Asia/Shanghai",
"dynamic_partition.start" = "-2147483648",
"dynamic_partition.end" = "3",
"dynamic_partition.prefix" = "p",
"dynamic_partition.replication_allocation" = "tag.location.default: 3",
"dynamic_partition.buckets" = "32",
"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.storage_policy" = "",
"dynamic_partition.storage_medium" = "HDD",
"storage_format" = "V2",
"light_schema_change" = "true",
"disable_auto_compaction" = "false",
"enable_single_replica_compaction" = "false"
);
```
执行sql如下：
```
insert into report_dsp_date_user3(m_date,dsp_id,uvrate) values ('2023-11-20','wscs',1);
insert into report_dsp_date_user3(m_date,dsp_id,uvrate_bid) values ('2023-11-20','wscs',2);
```
执行后的结果如下：
```
m_date dsp_id uvrate uvrate_bid uv_showsuc uv_click crdate
2023-11-20 wscs 0 2 0 0 2023-11-20 18:12:17
```
问题说明：
```
没有实现部分列更新，在尝试修改默认值为null时，发现可以了，希望可以不设置默认值为null实现部分列更新
```
### What You Expected?
希望执行后的结果如下：
```
m_date dsp_id uvrate uvrate_bid uv_showsuc uv_click crdate
2023-11-20 wscs 1 2 0 0 2023-11-20 18:12:17
```
### 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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Re: [I] [Bug] 部分列更新默认值存在问题 [doris]
Posted by "morningman (via GitHub)" <gi...@apache.org>.
morningman closed issue #27292: [Bug] 部分列更新默认值存在问题
URL: https://github.com/apache/doris/issues/27292
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Re: [I] [Bug] 部分列更新默认值存在问题 [doris]
Posted by "didasai (via GitHub)" <gi...@apache.org>.
didasai commented on issue #27292:
URL: https://github.com/apache/doris/issues/27292#issuecomment-1820319203
> 如果您想要一个能够进行部分更新的表，并且表中的列可以具有非空默认值，则可以使用写入时合并唯一表。
AGGREGATE KEY模型，后续的版本会支持这种方式吗？
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Re: [I] [Bug] 部分列更新默认值存在问题 [doris]
Posted by "bobhan1 (via GitHub)" <gi...@apache.org>.
bobhan1 commented on issue #27292:
URL: https://github.com/apache/doris/issues/27292#issuecomment-1819338092
https://doris.apache.org/zh-CN/docs/sql-manual/sql-reference/Data-Definition-Statements/Create/CREATE-TABLE
> REPLACE_IF_NOT_NULL：非空值替换。和 REPLACE 的区别在于对于null值，不做替换。这里要注意的是字段默认值要给NULL，而不能是空字符串，如果是空字符串，会给你替换成空字符串。
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Re: [I] [Bug] 部分列更新默认值存在问题 [doris]
Posted by "bobhan1 (via GitHub)" <gi...@apache.org>.
bobhan1 commented on issue #27292:
URL: https://github.com/apache/doris/issues/27292#issuecomment-1819333274
If you want a table that has the ability to do partial update, and columns in the table can have non-null default values, you can use a merge-on-write unique table.
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Re: [I] [Bug] 部分列更新默认值存在问题 [doris]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27292:
URL: https://github.com/apache/doris/issues/27292#issuecomment-3287230643
We're closing this issue because it hasn't been updated in a while.
If you'd like to revive this issue, please reopen it and feel free a maintainer to remove the Stale tag!
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