The DuckDB-Iceberg extension now supports insert, update, and delete operations for Iceberg v2 tables in version 1.4.2. Users can interact with Iceberg REST Catalogs and manage table properties while utilizing SQL syntax for data manipulation. However, there are limitations regarding updates on partitioned tables and the lack of copy-on-write support.

pg_lake allows Postgres to manage Iceberg tables and interact with data stored in object storage like S3. It supports transactions, various data formats, and utilizes DuckDB for efficient query execution. Users can create, modify, and query data seamlessly within Postgres.