Posts

All the articles I've posted.

• 8 MIN READ•Apr 29, 2026

  Writing to an Apache Iceberg Table: How Commits and ACID Actually Work

  Here is exactly how an engine writes to an Iceberg table, step by step, from data files through the atomic commit that makes ACID guarantees possible.

  writing to Apache IcebergIceberg ACID transactionsatomic commit
• 8 MIN READ•Apr 29, 2026

  Volcano, Vectorized, Compiled: How Engines Execute Your Query

  The Volcano model processes one row at a time. Vectorized execution processes batches with SIMD. Code generation fuses operators into compiled code. Here is how each works.

  query execution modelsvectorized executionvolcano iterator model
• 8 MIN READ•Apr 29, 2026

  Hidden Partitioning: How Iceberg Eliminates Accidental Full Table Scans

  Iceberg's hidden partitioning separates physical layout from user queries using transform functions. Here is how it works and why it eliminates accidental full scans.

  Iceberg hidden partitioningpartition transformsaccidental full table scan