Hey Iceberg Community: I want to ask for some help review on this PR https://github.com/apache/iceberg/pull/8340. It tried to solve the current issue where underscore cannot be used correctly in resolving nested namespace in JDBC catalog. Corresponding reproduce of the problem can be found in https://github.com/apache/iceberg/issues/8321 and https://github.com/apache/iceberg/issues/8832.
Thanks, Steve Zhang
