DataFusion Comet 1.0 replaces Spark Iceberg scans with native Rust. What speeds up, what still falls back to the JVM, and how to deploy it.
ALP and FSST target Parquet's worst cases: floats and high-cardinality strings. How they work and what they change for Iceberg tables.
Put REST catalog RBAC and masking in Git. How to review grants, apply them safely, and keep lakehouse access from drifting.
Metric contracts in code let teams test, version, and serve business logic to multi-agent systems without each agent inventing its own SQL.
