snowflakedb / snowflakedb/snowpark-python
SNOW-2380579: TimestampType(s) should support precision argument
Open
@sfc-gh-jrose is already working on this.
Since Oct 4, 2025.
feature
status-triage_done
- Dominant language
- Python
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- 341
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- 155
- Avg merge
- 4d 16h
- Merged PRs (30d)
- 27
Description
What is the current behavior?
TimestampType only take timezone argument, not the precision argument that is available on the underlying snowflake type. https://docs.snowflake.com/en/sql-reference/data-types-datetime
What is the desired behavior?
They should take both, e.g. TimestampType(precision=6) to get a microsecond rather than nanosecond precision time.
How would this improve snowflake-snowpark-python?
Better mapping onto the full set of snowflake types. Additionally, with iceberg v2 only supporting microsecond precision, it is easy to accidentally lose precision when writing to iceberg table. This helps make that more explicit.
References, Other Background
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