We just ran out of time and didn't get a chance to discuss this in the community sync meeting today. Hence, I am raising the discussion here.
We added JSON parsers for content file and file scan task a year ago [1]. Recently, I just realized the implementation only handles BaseFileScanTask. It would fail if the FileScanTask is some other implementation (like StaticDataTask). Eduard, Anton, and I have been discussing a solution in issue-9597 [2]. We reached a consensus that we need to define a new `task-type` enum field to indicate the implementation class/type [3]. For backward compatibility, the lack of this new `task-type` field should be interpreted as `base-file-task`. Since this is a spec change, Anton suggested more visibility. Hence I am starting this discussion thread. [1] https://github.com/apache/iceberg/pull/6934 [2] https://github.com/apache/iceberg/issues/9597 [3] https://github.com/apache/iceberg/pull/9728
