kosiew commented on code in PR #1222:
URL:
https://github.com/apache/datafusion-python/pull/1222#discussion_r2346199959
##########
python/datafusion/dataframe.py:
##########
@@ -1105,21 +1122,33 @@ def unnest_columns(self, *columns: str, preserve_nulls:
bool = True) -> DataFram
return DataFrame(self.df.unnest_columns(columns,
preserve_nulls=preserve_nulls))
def __arrow_c_stream__(self, requested_schema: object | None = None) ->
object:
- """Export an Arrow PyCapsule Stream.
+ """Export the DataFrame as an Arrow C Stream.
- This will execute and collect the DataFrame. We will attempt to
respect the
- requested schema, but only trivial transformations will be applied
such as only
- returning the fields listed in the requested schema if their data
types match
- those in the DataFrame.
+ The DataFrame is executed using DataFusion's streaming APIs and
exposed via
Review Comment:
Added
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