HyukjinKwon commented on code in PR #36640:
URL: https://github.com/apache/spark/pull/36640#discussion_r880031452
##########
python/pyspark/sql/session.py:
##########
@@ -611,7 +611,7 @@ def _inferSchema(
:class:`pyspark.sql.types.StructType`
"""
first = rdd.first()
- if not first:
+ if first != 0 and not first:
Review Comment:
Oh got it. What about we check if it is `collections.abc.Sized`, and if the
size is `0` here instead?
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