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Columnar @columnar_tech

Building the future of fast universal data connectivity.

Joined April 2025
  • Tweets 34
  • Following 1
  • Followers 94
9 Photos and videos
This week we announced a new ADBC driver for Apache DataFusion. DataFusion is Rust-native, but now you can use it from 10 other languages through the same zero-copy Arrow ADBC interface that connects to 30 other databases and query engines. Learn more: docs.adbc-drivers.org/driver…
DataFusion logo centered on a white background with radial lines connecting it to language logos for Python, JavaScript, TypeScript, Go, Java, C#, C , Rust, Ruby, R, and Kotlin.

ALT DataFusion logo centered on a white background with radial lines connecting it to language logos for Python, JavaScript, TypeScript, Go, Java, C#, C , Rust, Ruby, R, and Kotlin.
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Columnar retweeted
Ian Cook@ianmcook
Jun 2
📣 Introducing databow: one command-line tool to query them all, built with Rust and ADBC. Query any SQL source that has an ADBC driver (30 and counting) right from your terminal with one simple CLI. To install 👉 uv tool install databow Link to announcement in the comments👇
databow: a command-line tool for querying databases

ALT databow: a command-line tool for querying databases

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This week, we released an ADBC driver for Quack, @duckdb’s new native client-server protocol. Now you can query remote DuckDB servers using the same ADBC interface you already use for local DuckDB across 7 languages—no third-party server extensions required. Details in blog 👇
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columnar.tech/blog/quack-adb…

Announcing an ADBC driver for Quack

A public preview of a driver for DuckDB’s new client-server protocol

columnar.tech
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This week we released version 0.3.0 of dbc, the package manager for modern database drivers. This release makes dbc: 🧩 Easier to embed inside apps 🤖 Easier to run with AI agents ⚙️ Easier to set up in CI workflows Read the announcement and install or upgrade 👇
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columnar.tech/blog/dbc-0.3.0

Announcing dbc 0.3.0

The third release of dbc improves the experience for applications and agents that need to install and manage ADBC drivers.

columnar.tech
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AI coding tools speed up how we build data-driven apps. But legacy database access patterns slow us down. Join us for a live hands-on workshop to learn how ADBC makes database access faster, more portable, and better suited to analytical and agentic work. Sign up at link below👇
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luma.com/3lt47cj9

Hands-on workshop: Create data-driven apps faster with ADBC and AI · Zoom · Luma

AI coding tools are changing how we build data pipelines and applications, but all of that code still needs to connect to databases, and the connectivity layer…

luma.com
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JavaScript and TypeScript developers have been paying “the JSON tax” on every database query: parsing, coercing, and validating results. Our latest post introduces the ADBC driver manager for @nodejs which keeps results typed in @ApacheArrow format end to end. Link in comments👇
Illustration of a snail inside a pair of curly braces

ALT Illustration of a snail inside a pair of curly braces

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columnar.tech/blog/stop-payi…

Stop paying the JSON tax

Arrow-native database connectivity for Node.js

columnar.tech
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We heard you: ADBC is great, but you need it on mainframes. Introducing ADBC for COBOL. The same connectors that work with Python, Rust, and Go now work with a language originally designed for punch cards. Blog post and repo in the comments.
Screenshot of COBOL source code displayed on a simulated IBM 3279 mainframe terminal with green phosphor text on a black CRT screen, showing a demo of ADBC connecting to Snowflake

ALT Screenshot of COBOL source code displayed on a simulated IBM 3279 mainframe terminal with green phosphor text on a black CRT screen, showing a demo of ADBC connecting to Snowflake

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columnar.tech/blog/adbc-for-…

We built an ADBC interface for COBOL

Modern database connectivity meets 1959. It fits better than it should.

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Repo with runnable GnuCOBOL demos for SQLite, DuckDB, and Snowflake: github.com/columnar-tech/adb…

GitHub - columnar-tech/adbc-cobol: ADBC interface for COBOL

ADBC interface for COBOL. Contribute to columnar-tech/adbc-cobol development by creating an account on GitHub.

github.com
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The fastest operation is the one you don’t have to do. When a database natively supports @ApacheArrow, ADBC can speed up fetching and ingestion by eliminating costly row/column conversions. How much faster is it in practice? We ran some benchmarks to find out. Link below 👇
An abstract hyperspace warp image inspired by the comedic "going plaid" effect from the 1980s cult film "Spaceballs".

ALT An abstract hyperspace warp image inspired by the comedic "going plaid" effect from the 1980s cult film "Spaceballs".

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columnar.tech/blog/zero-copy…

Zero-copy, zero contest

Comparing ADBC performance against the alternatives on two Arrow-native systems: BigQuery and DuckDB

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This week we shipped 4 updated ADBC drivers with major performance gains: ⏱️ 3× faster queries (BigQuery, MSSQL) ⚡ >30× faster ingest (MySQL, Trino) How we achieved it, what’s next, and what vendors can do to unlock even more speed: columnar.tech/blog/adbc-driv…
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This week we shipped the second release of dbc, the command-line tool for installing and managing ADBC drivers: 📦 More drivers (Oracle & Teradata) 🔐 Private registries 🛠️ Easier to embed in other tools 🧑‍💻 Better human UX 🤖 Better agent experience Full details in comments 👇
Terminal-style image showing the command `dbc install` typed in a command line box, with a colorful swirling list of database and data warehouse names in the background, illustrating that dbc can install ADBC drivers for many different systems.

ALT Terminal-style image showing the command `dbc install` typed in a command line box, with a colorful swirling list of database and data warehouse names in the background, illustrating that dbc can install ADBC drivers for many different systems.

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For more details and installation instructions, see the dbc 0.2.0 announcement blog post: columnar.tech/blog/announcin…

Announcing dbc 0.2.0

The second release of dbc brings new drivers, pre-releases, private registries, and a seamless experience for humans, tools, and agents.

columnar.tech
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Fetch query results without ODBC / JDBC bottlenecks. The new ADBC driver for @databricks is now in early release. Install it with dbc. Details in comments.

ALT dbc install databricks

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See the documentation at docs.adbc-drivers.org/driver…

Databricks

This driver provides access to Databricks, a cloud-based platform for data analytics. Installation: The Databricks driver can be installed with dbc: Connecting: To connect, edit the uri option below...

docs.adbc-drivers.org
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Don't have dbc installed? Start at docs.columnar.tech/dbc

docs.columnar.tech

dbc is the command line tool for installing and managing ADBC drivers

docs.columnar.tech
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