ueshin commented on a change in pull request #33968:
URL: https://github.com/apache/spark/pull/33968#discussion_r707770623
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File path: python/pyspark/pandas/series.py
##########
@@ -4548,22 +4548,31 @@ def update(self, other: "Series") -> None:
if not isinstance(other, Series):
raise TypeError("'other' must be a Series")
- combined = combine_frames(self._psdf, other._psdf, how="leftouter")
+ if same_anchor(self, other):
+ scol = F.when(other.spark.column.isNotNull(),
other.spark.column).otherwise(
+ self.spark.column
+ )
Review comment:
We should alias the `scol` with the original name?
`scol = ... .alias(self._internal.data_spark_column_names[0])`
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