v.21.4Improvements

Better Exception Messaging for Client During Server Block Writing Errors

Official CH changelog text
Better exception message in client in case of exception while server is writing blocks. In previous versions client may get misleading message like Data compressed with different methods. #22427 (alexey-milovidov).
Improved exception messages in the ClickHouse client when the server encounters errors while writing data blocks.

Why it matters

This feature addresses misleading error messages previously shown to clients, such as Data compressed with different methods, which did not accurately reflect the server-side issue. The improvement helps users better understand the actual problem encountered during data block writing, facilitating easier debugging and troubleshooting.

How to use it

Users benefit from clearer and more accurate error messages automatically upon updating to the new ClickHouse version; no additional configuration is required.

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