@Internal public class MapUnionFunction extends BuiltInScalarFunction
BuiltInFunctionDefinitions.MAP_UNION
.Constructor and Description |
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MapUnionFunction(SpecializedFunction.SpecializedContext context) |
Modifier and Type | Method and Description |
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void |
close()
Tear-down method for user-defined function.
|
MapData |
eval(MapData... maps) |
void |
open(FunctionContext context)
Setup method for user-defined function.
|
getArgumentDataTypes, getOutputDataType, getRequirements, getTypeInference, isDeterministic
getKind, getParameterTypes, getResultType
functionIdentifier, toString
public MapUnionFunction(SpecializedFunction.SpecializedContext context)
public void open(FunctionContext context) throws Exception
UserDefinedFunction
open
in class UserDefinedFunction
Exception
public void close() throws Exception
UserDefinedFunction
close
in class UserDefinedFunction
Exception
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