Apache Parquet in 2026, variant types, geospatial, ALP encoding, footer redesign, the versioning debate, and how the decade-old format is renovating.
Apache Polaris as a TLP, federation, credential vending, semantic layers, lineage, and how the open catalog became the governance plane.
Every path for streaming data into Iceberg in 2026, Flink, Spark, Kafka Connect, broker-native, managed pipelines, with honest latency numbers.
How Iceberg REST catalogs run the control plane and Arrow Flight runs the data plane, plus the security, performance, and lock-in tradeoffs of pairing them.
