Danny Chan

Did you use the Flink session cluster? What class is missing here?

The class is located in `flink-table-planner-loader`, can aws supporters give some help here?

@ertanden @Zouxxyy > dependency on flink-table-planner_2.12 is deprecated since 1.15, and projects should refactor out of it. That's correct, we introduce `SortCodeGenerator` in the first place to fetch flexibility of...

> flink-table-planner has been removed from the classpath since flink1.15 Then how the classes in flink-table-planner is loaded then, can we do similiar loadings in Hudi side?

`SortCodeGenerator` is in scala, we do not want to introduce scala code in `hudi-flink` module.

Are you using append mode or upsert mode?

> I'm using in-process lock In-process lock can not work correctly for MDT with async table services.

I'm confused by your change, if you just want the `Round` or `Truncate` return type inference can be configurable, just replace the `Return type inference`, which is already pluggable.

> @danny0405 This is similar to #1311 which made some of the other decimal related rules configurable using a custom type system. > > Our understanding back then was this...

> This forces the client to register all rel node types before calling the metadata service How ?