join

join

[Question] Use of `super(Class, cls)` in Spark codebase

Hi all, I'm a developer trying to make my first contribution to Apache Spark, and while exploring the codebase I came across something I was curious about. In several places, such as this test case: https://github.com/apache/spark/pull/51225/files#diff-b494cf5a64997153f883507917a63dfb17a8c26624cf