[SPARK-12794] Support Defining and Registration of R UDF

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Later
• Affects Version/s: 1.6.0
• Component/s: SparkR
• Assignee: Unassigned
• Reporter: Sun Rui
• Created: 13/Jan/16 04:39
• Updated: 20/Jan/16 06:32
• Resolved: 20/Jan/16 06:32

Description

Create UserDefinedRFunction class in Scala similar to UserDefinedPythonFunction class.
Support registering R UDF in UDFRegistration class.
Implement udf() function in functions.R.
Implement registerFunction() in SQLContext.R.