DuckDB · Engineering blog · 9.2 a month · 25 posts since Aug 18, 2026
Nov 5
JetBrains users had long asked to join data across different database connections in a single query. Rather than build its own cross-database query engine, JetBrains embedded DuckDB in DataGrip, using DuckDB’s custom table functions to...
Nov 3
After years building kdb+-based data platforms for banks and hedge funds, Ryan Hamilton wanted an analytical engine he could recommend to smaller teams without specialized infrastructure or expensive licensing.
Oct 29
After nearly two decades working with increasingly sophisticated data infrastructure, data engineer [Matt Martin](https://www.linkedin.com/in/mattmartin14/) discovered DuckDB could handle many of the analytical tasks he cared about without...
Oct 16
JSON often arrives as a text column inside a table, not as a file. In this post, we infer a schema from such a column, adjust it, and turn the column into typed columns, without first writing the data to a file.
Oct 13
An Iceberg table is a tree of JSON, Avro and Parquet files. DuckDB can read every one of them, so you can walk the tree yourself with SQL: from the metadata file, through the manifest list and manifests, down to the data files and delete...
Oct 9
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...
Oct 7
A DuckDB database file does not have to hold any data. It can store nothing but view definitions that point at Parquet files on object storage, so a few hundred kilobytes behave like a shared catalog over a whole data lake.
Oct 5
When the analytics screen running on our main operational database got too slow, we moved a year of data into DuckDB on the same server. Getting the data in was the hard part.
Oct 2
When a query groups on long, repeated strings, move the strings into a small dimension table with sorted, narrow integer keys. Aggregate on the keys, then join the strings back in at the very end.
Sep 29
TypeSafe AI released Jev, a model that returns typed answers instead of text, on September 15, 2026. Within ten days, several community extensions let you filter, classify and score DuckDB rows with plain-English conditions.
Sep 28
Today we are releasing DuckDB 1.5.6 with bugfixes and performance improvements.
Sep 25
Hugging Face hosts hundreds of thousands of datasets, and DuckDB can read them directly, exactly where they are and without downloading anything, over the DuckDB `hf://` protocol.
Sep 22
dbt v2, which runs on the new Rust-based Fusion engine, is the first dbt release that ships with a built-in DuckDB adapter.
Sep 18
DuckDB-Wasm can open a persistent database file in the browser's Origin Private File System (OPFS). This post shows how, and when data reaches disk.
Sep 16
The duckdb-skills plugin gives Claude Code a growing number of skills that use the DuckDB CLI to read data files, run queries, convert formats, explore object storage, work with spatial data, search the documentation and recall earlier...
Sep 2
DuckDB's development team in Amsterdam has started getting DuckDB v2.0 ready for release in October. If you like shiny new things, try out the alpha releases now and report anything that might not be working as expected!
Aug 26
DuckLabs will join Amazon Web Services (AWS), which is expected to be effective in early September. The projects will remain open-source under the MIT license.
Aug 25
The DuckDB Java client can register table functions written in pure Java, exposing any Java-accessible data source as a SQL table.
Aug 25
DuckDB's recursive CTE engine now treats recursion as one long-lived computation: it retains eligible epoch-invariant state, chooses execution modes from exact frontier cardinalities and physical work, probes keyed state directly and gives...
Aug 21
The DuckDB Java driver can now return query results as a lazily fetched sequence of columnar data chunks, avoiding JDBC's row-at-a-time ResultSet and its per-value overhead.
Aug 20
DuckDB v2.0 replaces its PostgreSQL-derived SQL parser with a PEG-based parser that is easier to evolve and can be extended at runtime.
Aug 18
DuckDB v2.0 will ship JSON functions that allow you to easily apply JSON patches.
Releases, benchmarks and internals of the in-process analytical database.
Databases (21), Data engineering (2), Developer tools (1) in the last six months.
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Official checkSep 25
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