Turning an Analytics Question Into a Verified Agentic Graph
A multi-agent analytics workflow built with the Agentic Graph Specification (AGS) is a YAML file that splits one business question into…
Data engineering · Lakehouse · AI
Data Engineering, Lakehouses, and the Future of AI
Alex talks technology, data, software development and AI
642published posts
507topics covered
77published books
Welcome to my digital garden. This is where I share my deep dives, tutorials, and thoughts on the evolving data landscape.
As the Head of Developer Relations at Dremio and author of Apache Iceberg: The Definitive Guide, Apache Polaris: The Definitive Guide, and Architecting an Apache Iceberg Lakehouse, my mission is to make complex data architectures accessible to everyone.
What You'll Find Here#
- Apache Iceberg & Polaris: Comprehensive guides on open table formats and catalogs.
- Data Lakehouse Architecture: Strategies for building cost-effective, high-performance data platforms.
- AI & RAG: Exploring the intersection of data engineering and Large Language Models.
- Dremio: Tips and tricks for using the Agentic Lakehouse Platform.
Latest writing
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Keeping Audit Snapshots Alive While Iceberg Snapshot Expiration Runs Every Night
To keep a specific Apache Iceberg snapshot through routine expiration, point a tag at it. Snapshot expiration never removes a snapshot that…
Twelve Queries That Pass Every Schema Check and Still Return the Wrong Number
A query can be syntactically valid, reference only real tables and columns, run without error, and still return a wrong business number.…