Skip to content

enh: add expr.dt.to_string for SparkLikeExpr #2529

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
lucas-nelson-uiuc wants to merge 3 commits into from
Closed

enh: add expr.dt.to_string for SparkLikeExpr #2529

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
7bd77fb
initial impl of to_string method
May 10, 2025
0738cd1
run pre-commit
May 10, 2025
6954033
rerun pre-commit
May 10, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 9 additions & 0 deletions narwhals/_spark_like/expr_dt.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,15 @@ def _weekday(_input: Column) -> Column:

return self._compliant_expr._with_callable(_weekday)

def to_string(self, format: str) -> SparkLikeExpr:
def _to_string(_input: Column) -> Column:
from narwhals._spark_like.expr_str import strptime_to_pyspark_format

_format = strptime_to_pyspark_format(format)
return self._compliant_expr._F.date_format(_input, _format)

return self._compliant_expr._with_callable(_to_string)

def truncate(self, every: str) -> SparkLikeExpr:
multiple, unit = parse_interval_string(every)
if multiple != 1:
Expand Down
Loading