(Or small correction; a Row with a column of Array of Longs, but still) On Wed, Oct 14, 2020 at 4:46 PM Rex Fenley <[email protected]> wrote:
> I believe I found the issue: > new RowTypeInfo(Types.PRIMITIVE_ARRAY(Types.LONG())) > vs > new RowTypeInfo(createTypeInformation[Array[Long]]) > I didn't quite understand at the time whose type information I was meant > to supply, now I do. > > However, I think my question still stands. Is there a way for this > information to be more directly encoded by scala api's types so this kind > of confusion never happens? > E.g. If my UDF is returning an Array of Longs then for what reason should > I ever need to then specify that directly from within getResultType? > > On Wed, Oct 14, 2020 at 4:06 PM Jeff Zhang <[email protected]> wrote: > >> Could you share your code to reproduce it ? >> >> Rex Fenley <[email protected]> 于2020年10月15日周四 上午5:54写道： >> >>> Hello, >>> >>> I've been playing with UDFs using the Scala API and have repeatedly run >>> into issues such as this: >>> ``` >>> flink-taskmanager_1 | java.lang.ClassCastException: >>> scala.collection.immutable.Set$EmptySet$ cannot be cast to [J >>> ``` >>> Is there something that can be done on Flink's end, either to catch >>> these errors in type checking or to cast them in a sane manner during >>> runtime? >>> >>> Thanks! >>> >>> -- >>> >>> Rex Fenley | Software Engineer - Mobile and Backend >>> >>> >>> Remind.com <https://www.remind.com/> | BLOG <http://blog.remind.com/> >>> | FOLLOW US <https://twitter.com/remindhq> | LIKE US >>> <https://www.facebook.com/remindhq> >>> >> >> >> -- >> Best Regards >> >> Jeff Zhang >> > > > -- > > Rex Fenley | Software Engineer - Mobile and Backend > > > Remind.com <https://www.remind.com/> | BLOG <http://blog.remind.com/> | > FOLLOW US <https://twitter.com/remindhq> | LIKE US > <https://www.facebook.com/remindhq> > -- Rex Fenley | Software Engineer - Mobile and Backend Remind.com <https://www.remind.com/> | BLOG <http://blog.remind.com/> | FOLLOW US <https://twitter.com/remindhq> | LIKE US <https://www.facebook.com/remindhq>
