[SPARK-43995] Implement UDFRegistration

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.5.0
• Fix Version/s: 3.5.0
• Component/s: Connect
• Epic Link: Spark Connect Scala Client - Basic
• Assignee: Venkata Sai Akhil Gudesa Assign to me
• Reporter: Venkata Sai Akhil Gudesa
• Created: 07/Jun/23 12:22
• Updated: 14/Jul/23 01:52
• Resolved: 14/Jul/23 01:52

Description

Reference file - https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/UDFRegistration.scala

API to be implemented:

• def register(name: String, udf: UserDefinedFunction): UserDefinedFunction

• • Reference

• def register[RT: TypeTag](name: String, func: Function0[RT]): UserDefinedFunction

• • From 0 to 22 arguments

• def register(name: String, f: UDF0[_], returnType: DataType): Unit

• • From 0 to 22 arguments

 

We currently do not support UDAFs so the relevant UDAF APIs may be skipped as well as the python/pyspark (in the context of the scala client) related APIs.

Issue Links

• links to: [Github] Pull Request #41953 (vicennial)