dosubot[bot] commented on issue #34328: URL: https://github.com/apache/superset/issues/34328#issuecomment-3121685838
<!-- Answer --> This happens because Superset infers your duration column as a temporal type (like time or interval), so the Table chart tries to apply a datetime formatter. Since your values are durations (not actual datetimes), the formatter fails and you get `NaN:NaN:NaN` instead of the raw string. Superset doesn't have a dedicated "duration" type—only NUMERIC, STRING, TEMPORAL, and BOOLEAN—so it can't distinguish between a time and a duration automatically. If the column is treated as STRING, it will display as expected; if it's TEMPORAL, it tries to parse and format it, which fails for durations in `HH:MM:SS` or similar formats [see code details](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-table/src/transformProps.ts). To fix this, cast your duration column to STRING in your database query or in the dataset's column configuration in Superset. For example, in SQL you can use `CAST(call_period AS VARCHAR)` or similar, depending on your database. In the dataset editor, you can also set the column's type to STRING if possible. This will prevent Superset from applying the temporal formatter and your durations will render as plain text, as you expect. There isn't a built-in workaround for handling durations as a special type, so until Superset adds support for a "duration" column type or a fallback, forcing the column to STRING is the best approach [reference](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset/db_engine_specs/base.py). <!-- 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/b412658b-781e-474e-a190-3cf19b344b75?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/b412658b-781e-474e-a190-3cf19b344b75?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/b412658b-781e-474e-a190-3cf19b344b75?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/b412658b-781e-474e-a190-3cf19b344b75?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/b412658b-781e-474e-a190-3cf19b344b75?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/b412658b-781e-474e-a190-3cf19b344b75?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/b412658b-781e-474e-a190-3cf19b344b75?feedback_type=other)</sup> [](https://app.dosu.dev/a28d3c7e-a9d3-459e-9fb6-3a6f9ff4f357/ask?utm_source=githu b) [](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/issues/34328) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
