Github user gatorsmile commented on the pull request:
https://github.com/apache/spark/pull/10092#issuecomment-161212331
@davies Thank you for showing me the original JIRA by @mateiz . It sounds
like it does not make sense to keep data as deserialized Java objects since
data is serialized on the Python side. Is my understanding correct?
I am wondering if we should automatically convert `MEMORY_ONLY` to
`MEMORY_ONLY_SER` and `MEMORY_AND_DISK` to `MEMORY_AND_DISK_SER`, if users are
choosing these two options? So far, the official document does not mention
these issues. Users might not realize this when making a decision.
Thank you!
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