xinrong-databricks commented on code in PR #36640:
URL: https://github.com/apache/spark/pull/36640#discussion_r884941255
##########
python/pyspark/sql/session.py:
##########
@@ -611,8 +611,8 @@ def _inferSchema(
:class:`pyspark.sql.types.StructType`
"""
first = rdd.first()
- if not first:
- raise ValueError("The first row in RDD is empty, " "can not infer
schema")
+ if first is None:
Review Comment:
Sounds good! Updated.
Just to confirm, we may not want to support `
spark.createDataFrame(spark._sc.parallelize([[], []]))` for now, is that right?
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