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https://issues.apache.org/jira/browse/FLINK-38275?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-38275:
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Labels: pull-request-available (was: )
> Cannot create a table when the upstream has no primary key and the first
> column is String
> -----------------------------------------------------------------------------------------
>
> Key: FLINK-38275
> URL: https://issues.apache.org/jira/browse/FLINK-38275
> Project: Flink
> Issue Type: Improvement
> Components: Flink CDC
> Affects Versions: cdc-3.5.0
> Reporter: Di Wu
> Priority: Major
> Labels: pull-request-available
>
> If the upstream model lacks PrimaryKeys and the first column is a String, the
> Doris Sink will identify the model as a duplicate and will not set keys. In
> this case, an error message will be reported when creating the table: errCode
> = 2, detailMessage = String Type should not be used in key column[name].
> Doris-Flink-Connector handles table creation.
> https://github.com/apache/doris-flink-connector/blob/master/flink-doris-connector/src/main/java/org/apache/doris/flink/catalog/doris/DorisSchemaFactory.java#L226-L227
> If the key is a String, the type is changed to Varchar(65535). Therefore,
> the first key set here can be used as the table key.
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