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https://issues.apache.org/jira/browse/FLINK-36996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17909333#comment-17909333
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Thorne commented on FLINK-36996:
--------------------------------
I will fix it
> The schema and namespace of MySQL pipeline connector metadata are reversed
> --------------------------------------------------------------------------
>
> Key: FLINK-36996
> URL: https://issues.apache.org/jira/browse/FLINK-36996
> Project: Flink
> Issue Type: Bug
> Components: Flink CDC
> Environment: flink :1.18.0
> flink-cdc 3.2.1
> doris:2.1
> Reporter: Thorne
> Priority: Major
> Fix For: cdc-3.3.0
>
> Attachments: image-2025-01-02-23-36-53-097.png,
> image-2025-01-02-23-44-28-707.png, image-2025-01-02-23-47-31-644.png
>
>
> As show that :
> 1、mysql2doris yaml with metadata config
> {code:java}
> //代码占位符
> ################################################################################
> # Description: Sync MySQL all tables to Doris
> ################################################################################
> source:
> type: mysql
> hostname: localhost
> port: 3306
> username: root
> password: 123456
> tables: app_db.\.*
> server-id: 5400-5404
> server-time-zone: UTC
> sink:
> type: doris
> fenodes: 127.0.0.1:8030
> username: root
> password: ""
> table.create.properties.light_schema_change: true
> table.create.properties.replication_num: 1
> transform:
> - source-table: app_db.orders
> projection: \*, __namespace_name__ as dbname, __schema_name__ as
> schema_name, __table_name__ as tb_name
> description: access metadata columns from source table pipeline:
> name: Sync MySQL Database to Doris
> parallelism: 2
> {code}
> 2、The select results from doris's app_db.orders table will be show that
> dbname column is null and schema_name is not empty.
> !image-2025-01-02-23-44-28-707.png|width=647,height=258!
>
> 3、we can see that we get the wrong results because of the flink-cdc's
> [Metadata
> relationship|https://nightlies.apache.org/flink/flink-cdc-docs-master/docs/core-concept/transform/#metadata-relationship]
> !image-2025-01-02-23-47-31-644.png|width=594,height=370!
>
>
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