Hi all! I have the following problem: • I am trying to create a CDC pipeline from Postgres to Iceberg, • I am performing a

groupBy

operation and attempt to collect a list of nested objects. This results in:

MULTISET<MAP<STRING,STRING>>

. I do not necessarily need a multiset, Ideally it would be:

ARRAY<MAP<STRING,STRING>>

, but I cannot find how to do that (except using UDFs I guess)? • When I write to Iceberg, I get the following error:

Invalid map: MULTISET<MAP<STRING, STRING>> is not a map

. Iny ideas?