| Interface | Description |
|---|---|
| AggregateFunction<S extends java.io.Serializable,R> |
Interface for a function that produces a result value by aggregating over multiple input rows.
|
| BoundFunction |
Represents a function that is bound to an input type.
|
| Function |
Base class for user-defined functions.
|
| ScalarFunction<R> |
Interface for a function that produces a result value for each input row.
|
| UnboundFunction |
Represents a user-defined function that is not bound to input types.
|