timsaucer commented on code in PR #1484:
URL:
https://github.com/apache/datafusion-python/pull/1484#discussion_r3080300798
##########
python/datafusion/functions.py:
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@@ -2300,25 +2350,29 @@ def extract(part: Expr, date: Expr) -> Expr:
return date_part(part, date)
-def date_trunc(part: Expr, date: Expr) -> Expr:
+def date_trunc(part: Expr | str, date: Expr) -> Expr:
"""Truncates the date to a specified level of precision.
+ Args:
+ part: The precision to truncate to. Must be one of ``"year"``,
Review Comment:
https://github.com/apache/datafusion-python/issues/1496
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