Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/1460#discussion_r15211313
--- Diff: python/pyspark/serializers.py ---
@@ -297,6 +297,33 @@ class MarshalSerializer(FramedSerializer):
loads = marshal.loads
+class AutoSerializer(FramedSerializer):
--- End diff --
It will fails in some cases, such as array, so it's not safe to make it as
default. I will improve it later and try to make it as default. Currently, it's
still useful, because people can use it in most cases.
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