[jira] [Created] (SPARK-31943) SPARK-31500 introduces breaking changes in 2.4.6

["Jefferson V (Jira)" <ji...@apache.org>]

Jefferson V created SPARK-31943:
-----------------------------------

             Summary: SPARK-31500 introduces breaking changes in 2.4.6
                 Key: SPARK-31943
                 URL: https://issues.apache.org/jira/browse/SPARK-31943
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.4.6
            Reporter: Jefferson V


[31500|[https://github.com/apache/spark/pull/28351/files]] introduced unimplemented fields of the `Collect` class that cause extensions of that class to fail unless the spark version is pinned to `2.4.5`. Since this was a minor version bump, seems like this wasn't desired.

I believe we should be able to at least put default values:

`convertToBufferElement(value: Any): Any = InternalRow.copyValue(value)`

`bufferElementType: DataType = child.dataType`

and restore the `override def eval` in `Collect`, to support compatibility with 2.4.5 while allowing implementers in that file to override them to fix the bug. Since the abstract `Collect` is currently not designed to fix the bug (just provide tools that can be implemented to fix it), this change wouldn't undermine the bug fix, just add backwards compatibility to 2.4.5.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org