atoomula commented on a change in pull request #911: Support for types in Samza 
SQL UDF
URL: https://github.com/apache/samza/pull/911#discussion_r255300768
 
 

 ##########
 File path: samza-sql/src/main/java/org/apache/samza/sql/fn/GetSqlFieldUdf.java
 ##########
 @@ -51,22 +52,21 @@
  *           - sessionKey (Scalar)
  *
  */
-@SamzaSqlUdf(name = "GetSqlField")
+@SamzaSqlUdf(name = "GetSqlField", description = "Get an element from complex 
Sql field.")
 
 Review comment:
   GetSqlField is kind of limiting as it returns only a String. For instance, 
we cannot get a sub-record or an array or any other type. Just wondering if 
other cases work if we return an object from execute ? Or since now we have 
ability to add more methods to an Udf (although I'm still not clear on how 
these different methods can be invoked in Udf unless they are fn overloads), is 
there any other way we could make it return different types ?

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