Hello Spark community, My name is Scott Schenkein, and I am the maintainer of IndexTables <https://www.indextables.io/> which is an open table format that provides fast search services, either as a standalone table type or as a companion index to Iceberg or Delta Lake.
In my implementation, I've needed to build a parallel pushdown structure because several operators I rely on are not currently supported by Spark, and there is no existing extensibility mechanism for predicate pushdown. Last month I opened an issue <https://issues.apache.org/jira/browse/SPARK-55869> and a pull request <https://github.com/apache/spark/pull/54669>to add support for these capabilities, but I've had difficulty finding a reviewer. A committer from the Iceberg project suggested I reach out to this list as a good place to connect with potential reviewers. If anyone has bandwidth to take a look, I would greatly appreciate it. Happy to provide any additional context about the motivation or design. Thank you, Scott Schenkein
