srowen commented on a change in pull request #29242:
URL: https://github.com/apache/spark/pull/29242#discussion_r460575146
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File path: python/pyspark/sql/dataframe.py
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@@ -674,7 +674,7 @@ def cache(self):
.. note:: The default storage level has changed to `MEMORY_AND_DISK`
to match Scala in 2.0.
"""
self.is_cached = True
- self._jdf.cache()
+ self.persist(StorageLevel.MEMORY_AND_DISK)
Review comment:
I see, python StorageLevels are defined differently. Erm, @ScrapCodes or
say @cloud-fan would you have an opinion on this? it does seem plausible but I
don't know if there's a hidden reason for this difference.
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