@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
String database;
if (context != null) {
database = context.getJobConf().get("hive.current.database");
} else {
database = SessionState.get().getCurrentDatabase();
}
return PrimitiveObjectInspectorFactory.getPrimitiveWritableConstantObjectInspector(
TypeInfoFactory.stringTypeInfo, new Text(database));
}
