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.

The article discusses the importance of using Iceberg in data management to enhance performance and scalability. It emphasizes the need for a more efficient approach to handling large datasets and suggests best practices for implementing Iceberg in data workflows. Additionally, it highlights the potential benefits of optimizing data storage and retrieval processes.

Iceberg format v3 introduces deletion vectors that enhance the efficiency of Change Data Capture (CDC) workflows by allowing row-level deletions without rewriting entire files. The article benchmarks the performance improvements of Iceberg v3 over v2 during MERGE operations, demonstrating significant gains in speed and cost-effectiveness for large-scale data updates and deletes. Key innovations include reduced I/O and improved query acceleration through the use of compact binary representations stored in Puffin files.

The article discusses how to archive PostgreSQL partitions to Apache Iceberg, highlighting the benefits of using Iceberg for managing large datasets and improving query performance. It outlines the steps necessary for implementing this archiving process and emphasizes the efficiency gained through Iceberg's table format.