Spark SQL supports complex types, but casting doesn't work for complex
types right now.
On 11/25/14 4:04 PM, critikaled wrote:
https://github.com/apache/spark/blob/84d79ee9ec47465269f7b0a7971176da93c96f3f/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
Doesn't look like spark sql support nested complex types right now
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