Interface SupportsUDF2<T1,T2,R>

All Superinterfaces:
AutoCloseable, Closeable, Formatter, Operator, OperatorPipelineV3, Serializable, org.apache.spark.sql.api.java.UDF2<T1,T2,R>

@DeveloperApi public interface SupportsUDF2<T1,T2,R> extends Formatter, org.apache.spark.sql.api.java.UDF2<T1,T2,R>
A mix-in interface for Formatter. Dataset formatters can implement this interface to support 2 input columns, i.e. the selected column name array from Select must have 2 elements.