GitHub user dosubot[bot] added a comment to the discussion: 422 Unprocessable Entity while syncing the columns from hydrolix using clickhouse connect driver
<!-- Answer --> There is no official Superset documentation that explicitly describes the 422 Unprocessable Entity error for Hydrolix or ClickHouse Connect column syncing. However, the Superset API docs and code do document that a 422 error is the standard response for validation failures during dataset operations—including column sync—such as when columns are missing, duplicated, or invalid. You can see this in the OpenAPI docstrings and comments for the DatasetRestApi, especially for the refresh endpoint ([superset/datasets/api.py](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset/datasets/api.py)). The docs do not mention Hydrolix, ClickHouse Connect, or specific causes like NULL/UNKNOWN column types, but they do confirm that 422 is used for validation errors during dataset and column sync operations. <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>How did I do? [Good](https://app.dosu.dev/response-feedback/a1bdfc91-13a0-4b3c-a1fd-60eb1ce39159?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/a1bdfc91-13a0-4b3c-a1fd-60eb1ce39159?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/a1bdfc91-13a0-4b3c-a1fd-60eb1ce39159?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/a1bdfc91-13a0-4b3c-a1fd-60eb1ce39159?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/a1bdfc91-13a0-4b3c-a1fd-60eb1ce39159?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/a1bdfc91-13a0-4b3c-a1fd-60eb1ce39159?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/a1bdfc91-13a0-4b3c-a1fd-60eb1ce39159?feedback_type=other)</sup> [](https://app.dosu.dev/a28d3c7e-a9d3-459e-9fb6-3a6f9ff4f357/ask?utm_source=github)& nbsp;[](https://go.dosu.dev/discord-bot) [](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/apache/superset/discussions/35230) GitHub link: https://github.com/apache/superset/discussions/35230#discussioncomment-14478302 ---- This is an automatically sent email for notifications@superset.apache.org. To unsubscribe, please send an email to: notifications-unsubscr...@superset.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: notifications-unsubscr...@superset.apache.org For additional commands, e-mail: notifications-h...@superset.apache.org
