khakhlyuk commented on code in PR #52670:
URL: https://github.com/apache/spark/pull/52670#discussion_r2447144128
##########
python/pyspark/sql/connect/session.py:
##########
@@ -578,6 +578,11 @@ def createDataFrame(
spark_type = from_arrow_type(field_type)
struct.add(field.name, spark_type,
nullable=field.nullable)
schema = struct
+ if len(schema) == 0:
Review Comment:
hey @HyukjinKwon!
In spark classic the code does not throw an error
```
df = pd.DataFrame(index=range(5))
spark.createDataFrame(df).collect()
```
this code results in an empty list `[]`. We could add the same error for the
classic spark, but it will be a breaking change technically. Do you think it
makes sense to do that?
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