Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/19459#discussion_r145859471
--- Diff: python/pyspark/sql/session.py ---
@@ -510,6 +578,12 @@ def createDataFrame(self, data, schema=None,
samplingRatio=None, verifySchema=Tr
except Exception:
has_pandas = False
if has_pandas and isinstance(data, pandas.DataFrame):
+ if self.conf.get("spark.sql.execution.arrow.enabled",
"false").lower() == "true" \
+ and len(data) > 0:
+ df = self._createFromPandasWithArrow(data, schema)
+ # Fallback to create DataFrame without arrow if return None
+ if df is not None:
--- End diff --
Shall we show some log message to users in this case?
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