5 posts tagged with "Parquet"

• Parquet-Only Manifests in Iceberg v4: Why the Metadata Layer Is Going Columnar

  August 25, 2026

  Iceberg v4 is moving manifests from Avro to Parquet so planners can read only the stats they need. Why the metadata layer is going columnar.

• Variant Shredding Explained: How Iceberg Gets Columnar Performance From Messy JSON

  August 24, 2026

  Variant shredding turns messy JSON into Parquet columns with statistics. How the layout works, how readers reassemble values, and why some queries prune.

• A Migration Playbook for Moving Legacy Warehouses onto Apache Iceberg

  August 04, 2026

  A dependency-first playbook for migrating legacy warehouses onto Apache Iceberg: snapshot vs migrate vs add_files, four-level parity validation, and federation-based cutover.

• The Parquet Versioning Problem, and Why Iceberg Cares About It

  July 28, 2026

  Parquet files have a version field that doesn't reliably signal feature requirements. A new versioning discipline is coming, borrowing from Iceberg's format version model.

• No Code - Convert XLS/CSV files into Parquet with Dremio

  December 18, 2023

  Convert XLS/CSV Files without having to write python