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Posted to dev@flink.apache.org by "Xiqian YU (Jira)" <ji...@apache.org> on 2024/04/10 08:25:00 UTC

[jira] [Created] (FLINK-35072) Doris pipeline sink does not support applying AlterColumnTypeEvent

Xiqian YU created FLINK-35072:
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             Summary: Doris pipeline sink does not support applying AlterColumnTypeEvent
                 Key: FLINK-35072
                 URL: https://issues.apache.org/jira/browse/FLINK-35072
             Project: Flink
          Issue Type: Improvement
          Components: Flink CDC
            Reporter: Xiqian YU


According to [Doris documentation|https://doris.apache.org/docs/sql-manual/sql-reference/Data-Definition-Statements/Alter/ALTER-TABLE-COLUMN/], altering column types dynamically is supported (via ALTER TABLE ... MODIFY COLUMN statement) when lossless conversion is available. However, now Doris pipeline connector has no support to AlterColumnTypeEvent, and raises RuntimeException all the time.

It would be convenient for users if they can sync compatible type conversions, and could be easily implemented by extending Doris' SchemaChangeManager helper class.



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