Posts

All the articles I've posted.

• 7 MIN READ•Apr 29, 2026

  Apache Iceberg Metadata Tables: Querying the Internals

  Iceberg metadata tables let you query snapshots, files, manifests, and partitions using SQL. Here is every metadata table and how to use them.

  Iceberg metadata tablestable snapshotstable files
• 7 MIN READ•Apr 29, 2026

  Maintaining Apache Iceberg Tables: Compaction, Expiry, and Cleanup

  Keep Iceberg tables fast with compaction, snapshot expiry, orphan cleanup, and manifest rewriting. Here is when and how to run each operation.

  Iceberg table maintenancecompactionsnapshot expiry
• 9 MIN READ•Apr 29, 2026

  Concurrency, Isolation, and MVCC: How Engines Handle Contention

  Databases handle concurrent access using locks, MVCC, or optimistic concurrency control. Here is how each approach works and what tradeoffs each creates.

  database concurrency controlMVCC databaseisolation levels