775 tutorials · free to read

A working handbook for data and software engineering.

Hands-on tutorials by Alex Merced on Apache Iceberg, the data lakehouse, pipelines, agentic AI, and the languages and tools that hold it all together.

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  1. 01Implementing Positional Deletes in Iceberg v3: Streamlining Merge-on-Read for Fast-Inbound Event LakesCross-posted. This article’s canonical home is iceberglakehouse.com. Implementing Positional Deletes in Iceberg v3: Streamlining Merge-on…
  2. 02Mapping the Variant Type in Iceberg v3: Standardizing Semi-Structured AI JSON PayloadsCross-posted. This article’s canonical home is iceberglakehouse.com. Mapping the Variant Type in Iceberg v3: Standardizing Semi-Structured…
  3. 03The State of Apache Iceberg v4 in July 2026: What the Dev List Tells Us About the Format's Next ChapterWhat the Iceberg v4 dev list tells us about adaptive metadata trees, single-file commits, column updates, and the format's next chapter in mid-2026.
  4. 04Designing Idempotent Pipelines in the Agentic Lakehouse: Eliminating Double-Write AnomaliesCross-posted. This article’s canonical home is iceberglakehouse.com. Designing Idempotent Pipelines in the Agentic Lakehouse: Eliminating…
  5. 05File Encryption for the Lakehouse: The Terminology, the Machinery, and the Hard Problem of Interoperable Encrypted TablesCross-posted. This article’s canonical home is iceberglakehouse.com. File Encryption for the Lakehouse: The Terminology, the Machinery, and…
  6. 06Implementing Positional Deletes in Iceberg v3: Streamlining Merge-on-Read for Fast-Inbound Event Lakes![Papercut diagram comparing copy-on-write and merge-on-read update flows for an Iceberg event lake](/images/2026/week-2026-07-06/implementing-positional-deletes-in-iceberg-v3-streamlining-merge-on-read-for-fast-inbound-event-lakes-diagram-1.png)