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Posted to commits@doris.apache.org by "Danpilz (via GitHub)" <gi...@apache.org> on 2024/07/03 02:33:56 UTC
[I] [Bug] 原表字段char(255)使用Create table like后，新表变成了char(1) [doris]
Danpilz opened a new issue, #37192:
URL: https://github.com/apache/doris/issues/37192
### 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
apache-doris-2.1.3-bin-x64
### What's Wrong?
这是原表，包含了char(255)类型的字段
```
CREATE TABLE test_doris_huan_hang
(
`id` INT NOT NULL,
`name` CHAR(255),
`address` VARCHAR(8000),
`updt_time` DATETIME,
`money` DECIMAL(16,4),
`double_test` DECIMAL(16,2) NOT NULL,
`float_test` DECIMAL(16,2),
`log_text` STRING
)
UNIQUE KEY(`id`)
DISTRIBUTED BY HASH(`id`) BUCKETS AUTO
PROPERTIES (
"replication_num" = "3",
"light_schema_change" = "true"
);
```
使用create table like创建新表
```
CREATE TABLE `temp_d8fd87d7cc814c1c` LIKE test_doris_huan_hang;
```
使用show create table发现，新创建的表的char长度变为了1，导致插入数据时报错
```
CREATE TABLE `temp_d8fd87d7cc814c1c` (
`id` INT NOT NULL,
`name` CHAR(1) NULL,
`address` VARCHAR(8000) NULL,
`updt_time` DATETIME NULL,
`money` DECIMAL(16, 4) NULL,
`double_test` DECIMAL(16, 2) NOT NULL,
`float_test` DECIMAL(16, 2) NULL,
`log_text` TEXT NULL
) ENGINE=OLAP
UNIQUE KEY(`id`)
COMMENT 'OLAP'
DISTRIBUTED BY HASH(`id`) BUCKETS AUTO
PROPERTIES (
"replication_allocation" = "tag.location.default: 3",
"min_load_replica_num" = "-1",
"is_being_synced" = "false",
"storage_medium" = "hdd",
"storage_format" = "V2",
"inverted_index_storage_format" = "V1",
"enable_unique_key_merge_on_write" = "true",
"light_schema_change" = "true",
"disable_auto_compaction" = "false",
"enable_single_replica_compaction" = "false",
"group_commit_interval_ms" = "10000",
"group_commit_data_bytes" = "134217728"
);
```
并且我测试char(254)就没有问题，只要长度小于255都不会出错，请问这是数据库的问题吗？麻烦查看下，谢谢！
### What You Expected?
执行create table like需要能正确创建表结构
### How to Reproduce?
按照上面的描述可复现
### Anything Else?
_No response_
### 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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Re: [I] [Bug] 原表字段char(255)使用Create table like后，新表变成了char(1) [doris]
Posted by "morrySnow (via GitHub)" <gi...@apache.org>.
morrySnow closed issue #37192: [Bug] 原表字段char(255)使用Create table like后，新表变成了char(1)
URL: https://github.com/apache/doris/issues/37192
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Re: [I] [Bug] 原表字段char(255)使用Create table like后，新表变成了char(1) [doris]
Posted by "morrySnow (via GitHub)" <gi...@apache.org>.
morrySnow commented on issue #37192:
URL: https://github.com/apache/doris/issues/37192#issuecomment-2209916018
reproduced.
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