Deleting metadata(expire_snapshots doesn't help...)

[atomsis]

Query engine

I am working with Trina Iceberg connector

Question

It does not have vacuum which, if I am not mistaken, solves my problem. I had a task to optimize packages (I used optimize - everything is ok with it, it works as it should). And also it is necessary to delete old snapshots (for example, older than 7 days) - I used expire_snapshots - the documentation says that it deletes both old snapshots and metadata from them - but not only does it not delete metadata - it seems to not delete regular snapshots either. Then I decided to use remove_orphan_files. It works better - but does not delete metadata - but does as I want = deletes snapshots older than a certain period. Another small clarification: remove_orphan_files worked and then began to work every other time, I added commands in a row: first expire_snapshots and then remove_orphan_files - and now it consistently cleans old snapshots, but not metadata, although it seems that expire_snapshots should. Help me with any ideas (I apologize for my English)