How Iceberg v3 geometry and geography types, bounding boxes, and native Parquet types give spatial data first-class standing.
How field IDs and initial and write defaults let Iceberg change schemas on large tables without rewriting data, at the spec level.
The Iceberg table properties that decide file count, pruning, write amplification, retention, and metadata growth, by workload.
A byte-by-byte guide to the Iceberg Puffin file format, its Theta sketch and deletion vector blobs, how metadata points to them, and how to operate them safely.
