Skip to content

fix: Explicitly specify empty_as_null for explode #356

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

Merged
Oliver Borchert (borchero) merged 2 commits into from
Jun 26, 2026
+9 −0
Merged

fix: Explicitly specify empty_as_null for explode #356

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
86ccb00
fix: Explicitly specify `empty_as_null` for `explode`
borchero Jun 26, 2026
340a1c5
Update
borchero Jun 26, 2026
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 dataframely/experimental/infer_schema.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,8 @@

import polars as pl

from dataframely._compat import _polars_version_tuple

_POLARS_DTYPE_MAP: dict[type[pl.DataType], str] = {
pl.Boolean: "Bool",
pl.Int8: "Int8",
Expand Down Expand Up @@ -147,9 +149,16 @@ def _get_dtype_args(dtype: pl.DataType, series: pl.Series) -> list[str]:
return [repr(dtype.categories.to_list())]

if isinstance(dtype, pl.List):
if _polars_version_tuple >= (1, 36, 0):
return [_dtype_to_column_code(series.explode(empty_as_null=False))]
return [_dtype_to_column_code(series.explode())]

if isinstance(dtype, pl.Array):
if _polars_version_tuple >= (1, 36, 0):
return [
_dtype_to_column_code(series.explode(empty_as_null=False)),
f"shape={dtype.size}",
]
return [_dtype_to_column_code(series.explode()), f"shape={dtype.size}"]

if isinstance(dtype, pl.Struct):
Expand Down
Loading