Github user jliwork commented on the pull request:
https://github.com/apache/spark/pull/9247#issuecomment-151274333
@marmbrus @cloud-fan Thank you for your comment. My current fix takes care
of array of NullType. I should be able to give error to block sort_array on
struct type as well if you like. I just looked into Spark's ORDER BY on struct
type. Since I'm new to spark, however, I feel a little bit challenging for me
to enhance sort_array to include struct type at this point. Would you be OK if
I open another JIRA to support sort_array on struct type, so that someone in
the community might be able to help?
Thanks,
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