[GitHub] [spark] srowen commented on a change in pull request #32729: [SPARK-35539] Restore to_koalas to keep the backward compatibility

[GitBox <gi...@apache.org>]

srowen commented on a change in pull request #32729:
URL: https://github.com/apache/spark/pull/32729#discussion_r643113808



##########
File path: python/pyspark/pandas/frame.py
##########
@@ -4545,6 +4545,15 @@ def to_pandas_on_spark(self, index_col: Optional[Union[str, List[str]]] = None)
             )
             return DataFrame(internal)
 
+    # Keep to_koalas for backward compatibility for now.
+    def to_koalas(self, index_col: Optional[Union[str, List[str]]] = None) -> "DataFrame":
+        warnings.warn(
+            "DataFrame.to_koalas is deprecated as of DataFrame.to_pandas_on_spark. "

Review comment:
       Maybe: `DataFrame.to_koalas is deprecated. Use DataFrame.to_pandas_on_spark instead.`




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