Dewey Dunnington

triangles "flying" from input coordinate space to output coordinate space

📣 Just released: Version 25 of the ADBC libraries. Release highlights: C# core libraries at 1.0, Windows on ARM packages, Python 3.15 wheels, separate Go modules for core and drivers, less unsafe Rust, and PostgreSQL and SQLite driver improvements. arrow.apache.org/blog/2026/10...

I had Claude restore a version of @ocks.org wonderful For Example hypertidy.github.io/playproj/exa... 🙏💯 (Soon on CRAN in #RStats form as {bigcurve})

*constrained* triangulation with {wkpool} powered by the fabulous spatial foundation in #RStats {wk} cran.r-project.org/web/packages... (more engines coming soon, with CDT and CGAL - for mesh refinement and updating, and conforming property)

Accepted papers are up and registration is open for CIDR 2027! January 24th-27th in Amsterdam. www.cidrdb.org/cidr2027/pap... www.cidrdb.org/cidr2027/reg...

New #Shapely 2.2.0 feature release! 🎉 Shapely is a Python package to work with geometry objects (wrapping GEOS). The new release comes with Python 3.15 support, performance improvements, and several new functions -> shapely.readthedocs.io/en/stable/re... #python #geopython #geospatial

Cloud Native Geo folks!!! Check out the great talks happening at FOSS4G NA! #CNG #GISchat #EO

FOSS4G Hiroshima 2026 is only a few days away! I'll talk about SedonaDB. 📅 Sep 1st, 14:00–14:30 🚪 Room4 talks.osgeo.org/foss4g-2026/...

Manitoba is now a recent addition to the timezone database! Looking forward to seeing how many incorrect times computers give us in the next month or so (I am guessing many tzdbs aren't updated at a month's notice!) www.iana.org/time-zones/r...

Excited to be talking SedonaDB at Cloud-Native Geospatial Forum (CNG) forum next week, and even more excited to connect with the spatial community in person for the first time in a while. If you're attending let me know and make sure we connect!

I cannot emphasize enough how excited I am about {geoarrowwidget} and {deckglgeoarrow}. 3.2 **million** points in 4 seconds. #rspatial #rstats

Excited to be teaching again! Sign up for the Monday SedonaDB workshop to mostly learn about how query engines/databases can make large(r) data in Python less awkward!

Published deck.gl-raster v0.8! - Initial globe view support - New icechunk example - Improved request latency for MosaicLayer - Fixed reprojection for images extending beyond ±85° latitude - Improved rendering precision at high zooms - Improved performance developmentseed.org/deck.gl-rast...

It looks like {geoarrowrs} is even competitive with {sedonadb}?! Do we got a new fast spatial contender! #rstats josiahparry.github.io/geoarrowrs/a...

Today, I talked about 🐘🪿⛰️, or more precisely, about PostGIS, DuckDB and Apache SedonaDB at FOSS4G Hiroshima 2026. Here's my slides. Guess which one I chose to recommend after this roulette?? 🎰 SedonaDB: Why Yet Another Geospatial Database Engine? github.com/yutannihilat...

Do you love maps? Of course you do! With the latest release of #ggsql we now support spatial plotting directly from your database. As a cherry on top, the release also provides powerful in-layer aggregation. Read all about it on the blog

dbplyr 2.6.0 is here! This release leaned on Claude Code to clear a TON of smaller issues, freeing up time for the big stuff: brand-new ADBC and JDBC backends, new translations, and a new sql_dialect() to cleanly decouple connection from SQL dialect. Read more: opensource.posit.co/blog/2026-06...

I'm alive *AND* I wrote a blog post?! Unheard of! Much 💖 to @abbycabs.dev, and @grafana.bsky.social's David Allen and Amanda Wagner whose FOSDEM talk's were a huge source of inspo!

📣 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 More details at columnar.tech/blog/databow-cli

⏰️ Reminder: submission deadline for the Spatial Data Science Award is soon (May 31). If you’re planning to nominate people contributing to geospatial open science, OSS development, and community building, now is the time to submit […] [Original post on fosstodon.org]

Looking for geospatial conferences in 2026? Here’s a growing community-maintained list: https://github.com/Nowosad/conferences_2026 🗺️ Add missing events via PR. #gischat #GIS #geocomputation

In 2024 I spent days trying to optimize a point-in-polygon join with ~130 million points against all U.S. zipcodes and the best I could come up with was a few minutes. In 2026, both SedonaDB and @duckdb.org spatial can both do it in seconds 🤯. More in the post! dewey.dunnington.ca/post/2026/wr...

We are thrilled to announce that Positron Server is now available for academic use via JupyterHub! This gives students a robust #RStats & #Python data science IDE without needing a local install or new infrastructure. Learn more: positron.posit.co/blog/posts/2...

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. columnar.tech/blog/adbc-co...

Our list of 2026 #rstats and #python summer internships has been posted. We can't wait to work with you and make great things! tidyverse.org/blog/2026/03...

We have summer internships y'all! Come work at Posit on the PyData, tidymodels, shiny, or Connect teams: grnh.se/tigz810a3us. You will have an awesome time, learn a ton, and help advance our open source and pro tools 🧰 #rstats #pydata

I tend to be a CRAN-appreciator. But wow, R-Universe is such a useful project. As a developer, I can: - Experiment with new and creative approaches that would never get accepted on CRAN; - Have cross-platform binaries for my packages built within an hour (usually) of a GitHub push

The fastest operation is the one you don’t have to do. When a database natively supports @arrow.apache.org, 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 👇

Arctos Alliance (arctosalliance.org) is now officially launched! "If your organization depends on Arrow or Parquet or you’re interested in helping sustain these critical data technologies, we would welcome a conversation about how to get involved."