cloud-fan commented on code in PR #38734:
URL: https://github.com/apache/spark/pull/38734#discussion_r1028961395
##########
python/pyspark/sql/connect/dataframe.py:
##########
@@ -122,6 +122,18 @@ def withPlan(cls, plan: plan.LogicalPlan, session:
"RemoteSparkSession") -> "Dat
new_frame._plan = plan
return new_frame
+ def isEmpty(self) -> bool:
+ """Returns ``True`` if this :class:`DataFrame` is empty.
+
+ .. versionadded:: 3.4.0
+
+ Returns
+ -------
+ bool
+ Whether it's empty DataFrame or not.
+ """
+ return len(self.take(1)) == 0
Review Comment:
This makes me think that maybe we should have some shared code between
pyspark and python connect client, to share some API definitions (api doc,
function signature) and functions with default implementations. cc @HyukjinKwon
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