Reposted by Dewey DunningtonJosiah @josiah.rs · 24/09/2026I cannot emphasize enough how excited I am about {geoarrowwidget} and {deckglgeoarrow}. 3.2 **million** points in 4 seconds. #rspatial #rstats 4519
Dewey Dunnington @paleolimbot.bsky.social · 22/09/2026Excited 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! 0115
Reposted by Dewey DunningtonKyle Barron @kylebarron.dev · 22/09/2026Published 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... 093
Reposted by Dewey DunningtonJosiah @josiah.rs · 12/09/2026It looks like {geoarrowrs} is even competitive with {sedonadb}?! Do we got a new fast spatial contender! #rstats josiahparry.github.io/geoarrowrs/a... 2231
Reposted by Dewey DunningtonYutani @yutannihilation-en.bsky.social · 01/09/2026Today, 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... 082
Dewey Dunnington @paleolimbot.bsky.social · 25/06/2026We're excited to announce a new release of SedonaDB, and this one is a big one! Between native DataFrame APIs in Python and R, a brand new Geography implementation, GPU accelerated joins, and a raster/ND-array foundation, it's hard to know where to start. 12711
Reposted by Dewey DunningtonThomas Lin Pedersen @thomasp85.com · 23/06/2026Do 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 blogopensource.posit.coggsql 0.4.1: Spatial plotting and in-layer aggregationggsql 0.4.1 adds support for spatial plotting and data aggregation within layers. Read all about the new features in this release post. 08122
Reposted by Dewey DunningtonHadley Wickham @hadley.nz · 17/06/2026dbplyr 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...opensource.posit.codbplyr 2.6.0dbplyr 2.6.0 is now on CRAN, with new ADBC and JDBC backends, IBM DB2 support, more translations, and a bunch of minor fixes and improvements. 05918
Reposted by Dewey DunningtonMara Averick @dataandme.bsky.social · 08/06/2026I'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! 87210
Reposted by Dewey DunningtonColumnar @columnar.tech · 02/06/2026📣 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-clicolumnar.techIntroducing databowOne command-line tool to query them all, built with Rust and ADBC 283
Reposted by Dewey DunningtonJakub Nowosad @nowosad.fosstodon.org.ap.brid.gy · 29/05/2026⏰️ 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] 013
Reposted by Dewey DunningtonJakub Nowosad @nowosad.fosstodon.org.ap.brid.gy · 29/04/2026Looking for geospatial conferences in 2026? Here’s a growing community-maintained list: github.com/Nowosad/conferences_2026 🗺️ Add missing events via PR. #gischat #GIS #geocomputation 274
Reposted by Dewey DunningtonLawrence Vulis @lvulis.bsky.social · 24/04/2026Modern geospatial SQL means you can skip the parallelization etc that we try to do to actually get these types of runs to complete. 032
Dewey Dunnington @paleolimbot.bsky.social · 24/04/2026In 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... 1236
Reposted by Dewey DunningtonPosit @posit.co · 08/04/2026We 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... 25623
Reposted by Dewey DunningtonColumnar @columnar.tech · 01/04/2026We 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...columnar.techWe built an ADBC interface for COBOLModern database connectivity meets 1959. It fits better than it should. 274
Dewey Dunnington @paleolimbot.bsky.social · 01/04/2026Can your current spatial SQL engine ST_💩()? We didn't think so! As part of our ongoing attempt to innovate on spatial SQL in Apache Sedona, this we're proposing emoji shorthands for most functions which (1) improve expressiveness and (2) helps more SQL fit on one line. 251
Reposted by Dewey DunningtonMax kuhn @topepo.bsky.social · 21/03/2026Our 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...tidyverse.org2026 Posit InternshipsPosit is sponsoring four summer internship positions in 2026. 12618
Reposted by Dewey DunningtonHadley Wickham @hadley.nz · 20/03/2026We 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 27245
Reposted by Dewey DunningtonKyle Walker @kylewalker.bsky.social · 18/03/2026I 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 3345
Reposted by Dewey DunningtonColumnar @columnar.tech · 15/03/2026The 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 👇 172
Reposted by Dewey DunningtonBryce @brycemecum.com · 12/03/2026Arctos 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."arctosalliance.orgArctos Alliance - Open CollectiveSupport the committers powering the world’s open data infrastructure. 042
Dewey Dunnington @paleolimbot.bsky.social · 11/03/2026We're chuffed to announce Apache SedonaDB 0.3.0! This release features a rewritten join that supports larger-than-memory spatial/KNN joins courtesy of Kristin Cowalcijk, new functions, parameterized SQL queries, GDAL/pyogrio reads, GDAL/sf based reads in R, and the beginnings of an R DataFrame API! 152
Reposted by Dewey DunningtonAndrew Lamb @andrewlamb1111.bsky.social · 13/02/2026📖 Apache Parquet recently added native support for Geospatial. This post explains what that means and why it is important: parquet.apache.org/blog/2026/02... 0132
Reposted by Dewey DunningtonJulien Le Dem @julien.ledem.net · 14/02/2026Great inaugural post about the geospatial types on the Parquet blog. Thank you Jia Yu, Dewey Dunnington , Kristin Cowalcijk, Feng Zhang. More posts coming ! parquet.apache.org/blog/2026/02...parquet.apache.orgNative Geospatial Types in Apache ParquetNative Geospatial Types in Apache Parquet 092
Reposted by Dewey DunningtonApache Arrow @arrow.apache.org · 11/01/2026Released this week: Version 22 of the ADBC libraries and drivers. This release includes updates to the ADBC libraries for 8 languages, and improvements to the 4 ADBC drivers that are maintained in the apache/arrow-adbc repository. See the blog for more details: arrow.apache.org/blog/2026/01... 0133
Reposted by Dewey DunningtonJakub Nowosad @jakubnowosad.com · 04/01/2026Introducing gdalcli by Andrew Brown -- an R frontend to GDAL’s unified CLI (≥3.11) 🌐 Compose and execute GDAL workflows with pipe-friendly functions. Learn more: github.com/brownag/gdal... #RStats #GDAL #Geospatial #OpenSource #RSpatialgithub.comGitHub - brownag/gdalcli: An R Frontend for the GDAL CLIAn R Frontend for the GDAL CLI. Contribute to brownag/gdalcli development by creating an account on GitHub. 13713
Reposted by Dewey DunningtonJeroen Ooms @jeroenooms.bsky.social · 03/01/2026ropensci.org/blog/2026/01...ropensci.orgTesting the R-universe build workflow from your own GitHub repositoryWe refactored the R-universe CI workflows to make it possible to run the exact same workflow from your own GitHub repository. 063
Reposted by Dewey DunningtonApache Software Foundation (The ASF) @apache.org · 23/12/2025Apache SedonaDB 0.2.0 is now available. Download here: buff.ly/k9LRlyC SedonaDB is the first open source, single-node analytical database engine that treats spatial data as a first-class citizen. It is developed as a subproject of Apache Sedona. #opensource 072
Dewey Dunnington @paleolimbot.bsky.social · 09/12/2025Excited to announce SedonaDB 0.2.0! Highlights include reading spatial file formats via GDAL/OGR, improved GeoParquet IO, Python @arrow.apache.org UDFs, and 40+ additional functions. 162
Reposted by Dewey DunningtonAndrew Lamb @andrewlamb1111.bsky.social · 04/12/2025Here are the slides and recordings from our Boston DataFusion Meetup in September: Youtube: youtu.be/wCAud478Dg8 Slides (pdf): drive.google.com/file/d/18KGH...youtu.beApache DataFusion Boston Meetup: September 12, 2025YouTube video by Andrew Lamb 0102
Reposted by Dewey DunningtonYutani @yutannihilation-en.bsky.social · 30/11/2025At FOSS4G Auckland 2025, we, MIERUNE Inc., had four talks about various topics from GTFS to GeoArrow. This is a quick summary of the presentation titles and the links to the slides🔗 dev.to/mierune/foss...dev.toFOSS4G Auckland 2025Kia ora! Last week, we were in Auckland, New Zealand, for FOSS4G 2025. We had a great time and gave... 031
Reposted by Dewey DunningtonAnita Graser 🇪🇺🇺🇦🇬🇪 @underdarkgis.fosstodon.org.ap.brid.gy · 28/11/2025Wohoo, QGIS Arrow support has been merged: github.com/qgis/QGIS/pull/63749 Thanks @paleolimbot & @nyalld et al. Looking forward to testing it out soon 🤩 #QGIS #Arrow #GISChatgithub.comImplement QgsArrowIterator to iterate over features as batches of ArrowArray by paleolimbot · Pull Request #63749 · qgis/QGISDescription As encouraged by @nyalldawson! https://mastodon.social/@nyalld/115459416976982489 The motivation is to eliminate the need for per-feature iteration in Python to maintain the fidelity of... 0119
Reposted by Dewey DunningtonAnita Graser 🇪🇺🇺🇦🇬🇪 @underdarkgis.fosstodon.org.ap.brid.gy · 28/11/2025Starring in a few minutes: It’s QGIS Open Day today! 🎉 Don’t miss our two awesome talks. Grab all links and info on the wiki: github.com/qgis/QGIS/wiki/QOD-Novem… #QGIS #GISChatgithub.comQOD November 2025QGIS is a free, open source, cross platform (lin/win/mac) geographical information system (GIS) - qgis/QGIS 063
Dewey Dunnington @paleolimbot.bsky.social · 24/11/2025#30DayMapChallenege day 24: The Mud Lakes of Nova Scotia! Here I use the SedonaDB #Rstats bindings with ggspatial+utils for the cartography. The Nova Scotia boundary here is from Overture Maps "divisions" which works great in SedonaDB/R! dewey.dunnington.ca/post/2025/da... 040
Reposted by Dewey DunningtonAndrew Lamb @andrewlamb1111.bsky.social · 23/11/2025Save the date -- Wednesday July 22, 2026 for the first Apache DataFusion meetup in Denver: luma.com/jsu6faieluma.comDenver Apache DataFusion Meetup · LumaJoin us for an evening of talks, panel discussion, and community discussion about Apache DataFusion and its growing role in modern data infrastructure. We will… 031
Reposted by Dewey DunningtonYutani @yutannihilation-en.bsky.social · 21/11/2025I talked about GeoArrow at FOSS4G Auckland 2025! Here's my slides. GeoArrow on Web; Can We Live Without GeoJSON? yutannihilation.github.io/foss4g-2025-...yutannihilation.github.ioGeoArrow on Web; Can We Live Without GeoJSON? - Slidev 0115
Dewey Dunnington @paleolimbot.bsky.social · 13/11/2025It was a joy today to present alongside fellow DataFusion contributors and users at the @apachedatafusion.bsky.social meetup in Boston! Slides from my talk are at dewey.dunnington.ca/slides/df2025 and hopefully the others will be posted soon! 030
Reposted by Dewey DunningtonAndrew Lamb @andrewlamb1111.bsky.social · 11/11/2025Here is a nice examination of the benefits of building new systems using the extensibility of @apachedatafusion.bsky.social vs other systems. www.bauplanlabs.com/post/duck-hu...bauplanlabs.comDuck Hunt: moving Bauplan from DuckDB to DataFusionBauplan's journey from DuckDB to Apache DataFusion: how switching SQL engines doubled query performance on Iceberg lakehouses while enabling greater hackability 082
Reposted by Dewey DunningtonApache Software Foundation (The ASF) @apache.org · 09/11/2025Apache Arrow 22.0.0 is now available for download: buff.ly/rFyGsDV This release includes 213 resolved issues. #opensource 0124
Reposted by Dewey DunningtonBryce @brycemecum.com · 07/11/2025This @posit.co::conf(2025) talk is everything: "The geospatial suite for Arrow is relatively new...so this is a PSA that it exists and it's really powerful and impressive. I actually also found it very easy to use...and I didn't really have much trouble learning it" www.youtube.com/watch?v=EHyg...youtube.comMake Big Geospatial Data Accessible with Arrow (Cari Gostic, Sonoma Technology) | posit::conf(2025)YouTube video by Posit PBC 1143
Reposted by Dewey DunningtonAnita Graser 🇪🇺🇺🇦🇬🇪 @underdarkgis.fosstodon.org.ap.brid.gy · 07/11/2025RE: fosstodon.org/@underdarkGIS/1133007… Over 250 #geospatial #GISChat counts to follow: gist.github.com/anitagraser/a37118d… 051
Dewey Dunnington @paleolimbot.bsky.social · 07/11/2025Day 6 of the #30DayMapChallenege is Dimensions! Here I create a beautiful space-time dataset with M values and a proper temporal CRS with SedonaDB...and then ignore it because I couldn't find a tool that can animate M values (let me know if there is one!). dewey.dunnington.ca/post/2025/da... 010
Dewey Dunnington @paleolimbot.bsky.social · 06/11/2025Day 5 of the #30DayMapChallenege! In which I attempt simple LiDAR processing for the first time using SedonaDB. Behold...a high-resolution elevation map of what's under my feet in my hometown of Winnipeg, Manitoba. Code + walk through included! dewey.dunnington.ca/post/2025/da... 110
Dewey Dunnington @paleolimbot.bsky.social · 04/11/2025Excited to be one of the attendees and present our work on the DataFusion-powered SedonaDB alongside a great lineup of talks! If you're in the Boston area come and say hi! 061
Dewey Dunnington @paleolimbot.bsky.social · 03/11/2025#30DayMapChallenge day three is polygons...here's a map I made for my Ph.D. thesis...a standard Fig 1 for lakes papers. This paper is about land use and how it is resolved in sediment, so I tried to communicate urban development in each catchment using very thin roads. This one is 100% QGIS! 070
Dewey Dunnington @paleolimbot.bsky.social · 02/11/2025#30DayMapChallenege day two is lines! Here's an animated version of the stream traversal with SedonaDB post I made a few weeks ago but using the Gaspereau River, which drains Gaspereau Lake (featured in day one). dewey.dunnington.ca/post/2025/da... 030
Dewey Dunnington @paleolimbot.bsky.social · 01/11/2025Day 1 of the #30DayMapChallenege is points! This one is entitled "Always Plot Your Test Data"...I've been using data called ns-water_point for a long time without properly inspecting it. It turns out the points are almost all rocks! They're pretty much all rocks. dewey.dunnington.ca/post/2025/da... 020