Sun Rui created SPARK-12793:
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Summary: Support R UDF Evaluation
Key: SPARK-12793
URL: https://issues.apache.org/jira/browse/SPARK-12793
Project: Spark
Issue Type: Sub-task
Components: SparkR
Affects Versions: 1.6.0
Reporter: Sun Rui
Basically follows the logic as that for Python UDF evaluation
(org/apache/spark/sql/execution/python.scala). Will extract and reuse common
logic between Python UDF and R UDF evaluation.
Serialization/deserialization is different from Python UDF. R UDF will use R
SerDe to directly serialize a batch of InternalRows into bytes (that is, in
SerializationFormats.ROW format)
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