| 类 | 说明 |
|---|---|
| AggregateFunction<T,ACC> |
Base class for user-defined aggregates.
|
| FunctionContext |
A
FunctionContext allows to obtain global runtime information about the context in which the
user-defined function is executed. |
| ScalarFunction |
Base class for a user-defined scalar function.
|
| TableFunction<T> |
Base class for a user-defined table function (UDTF).
|
| UserDefinedFunction |
Base class for all user-defined functions such as scalar functions, table functions,
or aggregation functions.
|
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