What’s Inside an Iceberg Table? 🧊 📦 An Apache Iceberg table looks like a regular table when you query it, but beneath the surface…well, it’s like an iceberg. 😅 Underneath, you’ll find a small tree of files: one JSON file at the top, a few layers of Avro files in the middle, and Parquet files at the bottom. When something is slow or looks wrong, it helps to know what’s in that tree. DuckDB can read all three formats, so you can inspect every layer with plain SQL. In this post, we create a small Iceberg table, change it a few times, and then walk through the files from the top down: duckdb.org/2026/10/13/inside… #ApacheIceberg #DuckDB

Agent Mode in the DuckDB CLI 🤖 🦆 The #DuckDB v2.0 CLI has an agent mode that gets AI coding agents to a correct result faster and with fewer tokens. When the CLI detects an agent, it prints compact Markdown tables instead of padded boxes, says clearly when a result was cut, stops runaway queries early, and reports errors as JSON. Long queries announce their expected cost before they start, so the agent can decide whether to wait. Learn more in today’s blog post: duckdb.org/2026/10/09/agent-…

[ICYMI:] DuckDB’s co-creator on why SQL won 🏁 In this interview with @letsdatascience , DuckDB co-creator Hannes Mühleisen argues that the data industry misdiagnosed SQL’s problems a decade ago. What developers *actually* hated in 2013 was the install, the server, and the client protocol, not the language itself. In the end, the NoSQL systems that tried to replace SQL only grew back into something SQL-shaped – minus 40 years of experience. 🫤 Hannes points to public workload data from Snowflake and Amazon showing that only a small fraction of a percent of analytical queries actually need a cluster, but that the database field spent 2 decades building for that edge case anyways. He also confirmed an unannounced DuckDB launch expected later this year. Catch the full interview here: letsdatascience.com/news/duc…

Attending the Rows & Columns Summit in San Francisco today? *THE* Hannes Mühleisen, co-creator of @duckdb, will give a talk exploring the architecture question that won't go away: OLTP and OLAP, together or apart? His talk “Nobody Knows What OLTP Is: DuckDB Moves to the Middle” is scheduled for 1:30 p.m. on Sept 22nd Venue: Contemporary Jewish Museum, San Francisco Sassy abstract and more info here: duckdb.org/events/2026/09/22…