alamb commented on issue #10602: URL: https://github.com/apache/datafusion/issues/10602#issuecomment-2122823905
If we cast using arrow_cast back to `Timestamp(Nanosecond, None)` the binning does appear to work correctly ```sql > create or replace view t_roundtrip as select arrow_cast(column1, 'Timestamp(Nanosecond, None)') as "column1" from t; 0 row(s) fetched. Elapsed 0.002 seconds. > select arrow_typeof(column1) as arrow_type, column1, date_bin(interval '1 day', column1) as "date_bin" from t_roundtrip; +-----------------------------+---------------------+---------------------+ | arrow_type | column1 | date_bin | +-----------------------------+---------------------+---------------------+ | Timestamp(Nanosecond, None) | 2024-01-01T00:00:01 | 2024-01-01T00:00:00 | | Timestamp(Nanosecond, None) | 2024-02-01T00:00:01 | 2024-02-01T00:00:00 | | Timestamp(Nanosecond, None) | 2024-03-01T00:00:01 | 2024-03-01T00:00:00 | | Timestamp(Nanosecond, None) | 2024-04-01T00:00:01 | 2024-04-01T00:00:00 | | Timestamp(Nanosecond, None) | 2024-05-01T00:00:01 | 2024-05-01T00:00:00 | | Timestamp(Nanosecond, None) | 2024-06-01T00:00:01 | 2024-06-01T00:00:00 | | Timestamp(Nanosecond, None) | 2024-07-01T00:00:01 | 2024-07-01T00:00:00 | | Timestamp(Nanosecond, None) | 2024-08-01T00:00:01 | 2024-08-01T00:00:00 | | Timestamp(Nanosecond, None) | 2024-09-01T00:00:01 | 2024-09-01T00:00:00 | | Timestamp(Nanosecond, None) | 2024-10-01T00:00:01 | 2024-10-01T00:00:00 | | Timestamp(Nanosecond, None) | 2024-11-01T00:00:01 | 2024-11-01T00:00:00 | | Timestamp(Nanosecond, None) | 2024-12-01T00:00:01 | 2024-12-01T00:00:00 | +-----------------------------+---------------------+---------------------+ 12 row(s) fetched. Elapsed 0.003 seconds. ``` -- 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: github-unsubscr...@datafusion.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org
