PhD student at CWI, Database Architectures | Lead developer DuckPGQ extension | Working on graphshttps://bsky.app/profile/dtenwolde.bsky.socialhttps://bsky.app/profile/dtenwolde.bsky.social/post/3m3fqix24oc2h#DuckPGQ is out again as a community extension for @duckdb.org v1.4.1!17 Oct 2025 16:56 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3m3fqix24oc2hhttps://bsky.app/profile/dtenwolde.bsky.social/post/3lqwwtpnvoc2sWhoever summoned this SQL abomination, I can’t tell if I should be impressed or horrified. Now I have to debug it… ChatGPT: it's a recursive SQL simulation of the Fibonacci function, but instead of using simple recursion, it models the function as a concurrent task graph. See: tinyurl.com/yjamy5pm06 Jun 2025 13:28 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lqwwtpnvoc2shttps://bsky.app/profile/dtenwolde.bsky.social/post/3lmh4fdoqzk2a🚀 #DuckPGQ is available again for #DuckDB v1.2.2! No major changes this time — 99% of my focus has been on the PhD (which will make its way into the extension eventually) 😄 One new simple pragma: create_vertex_table — does exactly what it says: creates a vertex table based on an edge table.10 Apr 2025 08:44 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lmh4fdoqzk2ahttps://bsky.app/profile/dtenwolde.bsky.social/post/3lhejhiqdds2e🚀 The recording of my lightning talk at #Duckcon on #DuckPGQ is now live on YouTube! 🎥 Check it out here: https://www.youtube.com/watch?v=QDdTbhSR2Vo&list=PLzIMXBizEZjggaDzjPP542En2R5SV0WiZ&index=5 Basically, everything you need to get started is in this picture 😉👇 @duckdb.org #DuckDB #GraphDatabases #OpenSource04 Feb 2025 16:53 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lhejhiqdds2ehttps://bsky.app/profile/dtenwolde.bsky.social/post/3lgzsircrrc2d🚀 Today at #DuckCon, I’ll give a lightning talk on graph analytics in @duckdb.org using SQL/PGQ & the DuckPGQ extension! In just 5 mins, get up to speed on the new syntax & running graph queries inside DuckDB. 🎥 Live stream (3 PM CET): www.youtube.com/@duckdb 📅 Program: https://duckdb.org/events/2025/01/31/duckcon6/ https://www.youtube.com/@duckdb31 Jan 2025 10:36 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lgzsircrrc2dhttps://bsky.app/profile/dtenwolde.bsky.social/post/3lginxerxik2gOne more week until DuckCon #6! I’m excited to give a lightning talk on using DuckDB and the DuckPGQ community extension for graph analytics [contains quote post or other embedded content]24 Jan 2025 14:59 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lginxerxik2ghttps://bsky.app/profile/dtenwolde.bsky.social/post/3lfrptbxflk2wWe’ve launched a new website for #DuckPGQ documentation! 🎉 Check out duckpgq.org to explore graph processing with #SQL/#PGQ and more. 🚀 The site is new and will continue to expand over time. The Notion page is now retired—everything you need is here. Feedback is welcome as always! https://duckpgq.org/15 Jan 2025 12:02 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lfrptbxflk2whttps://bsky.app/profile/dtenwolde.bsky.social/post/3lfprehs5q225My @ldbcouncil.org TUC talk is online! 🎥 Learn about #DuckPGQ and #SQL/#PGQ here: 👉 https://www.youtube.com/watch?v=Fzci3Ic0RBQ Catch me at @fosdem.bsky.social on Feb 1 in the Data Analytics room, where I’ll continue spreading the word about #DuckPGQ and #SQL/#PGQ. Hope to see you there! 🚀 #FOSDEM2025 https://www.youtube.com/watch?v=Fzci3Ic0RBQ&t=307s14 Jan 2025 17:24 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lfprehs5q225https://bsky.app/profile/dtenwolde.bsky.social/post/3ldyd23bglc26🎉 DuckPGQ v0.2.1 is here! 🐥 Highlights: - Bug fixes 🛠️ - PRAGMA show_property_graphs ✨ - CREATE PROPERTY GRAPH IF NOT EXISTS 🎯 - From v0.2.0: Create property graphs on attached databases (such as #SQLite) Learn more: https://duckdb.org/community_extensions/extensions/duckpgq.html Happy holidays! 🎄❄️ I'm off to enjoy the #top2000 🎶 https://github.com/duckdb/community-extensions/pull/23823 Dec 2024 16:11 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3ldyd23bglc26https://bsky.app/profile/dtenwolde.bsky.social/post/3ldgnuvchxc2eI just updated the #DuckDB extension visualization site to also include regular DuckDB extensions like Spatial and HTTPFS. Did you know there were nearly 6M extension downloads last week alone? 🚀 Check it out: duckdb-ce-analysis.evidence.app Feedback is always welcome! Made using @evidence.dev https://duckdb-ce-analysis.evidence.app/16 Dec 2024 15:37 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3ldgnuvchxc2ehttps://bsky.app/profile/dtenwolde.bsky.social/post/3ld74mwcldk2z🎶 One of my favourite Dutch traditions is the #Top2000! Between Christmas and New Year, the 2000 most-voted songs are played non-stop. 🌟 They even share an Excel sheet with all the songs and their release years. With just three lines of #DuckDB, you can create a histogram of music history! 📊✨13 Dec 2024 15:40 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3ld74mwcldk2zhttps://bsky.app/profile/dtenwolde.bsky.social/post/3lcwvgz7l7s2hThis Friday, Dec 13th, I’ll present DuckPGQ and our implementation of SQL/PGQ at the 19th @ldbc.bsky.social TUC meeting in London. If you’re in town, feel free to join—entry is free! A Zoom link is also available. More details: https://ldbcouncil.org/event/nineteenth-tuc-meeting/10 Dec 2024 09:10 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lcwvgz7l7s2hhttps://bsky.app/profile/dtenwolde.bsky.social/post/3lcfxw6dnds2nExcited to speak at #DuckCon #6 in Amsterdam on Jan 31, 2025!🎉 I’ll share how #DuckDB unlocks graph analytics with SQL/PGQ from the SQL:2023 standard using the #DuckPGQ extension. 📍 Free to attend & livestreamed on YouTube! 📅 Details + register: https://duckdb.org/events/2025/01/31/duckcon6/ 🚀 Hope to see you there!03 Dec 2024 15:39 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lcfxw6dnds2nhttps://bsky.app/profile/dtenwolde.bsky.social/post/3lcfd2zfnt22mExciting milestone: The DuckPGQ extension for #DuckDB has surpassed 10,000 downloads!🎉 A huge thanks to the community for supporting DuckPGQ for graph analytics. Stay tuned—the next update will bring property graph creation over attached databases! Explore DuckPGQ here: https://duckdb.org/community_extensions/extensions/duckpgq.html03 Dec 2024 09:26 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lcfd2zfnt22mhttps://bsky.app/profile/dtenwolde.bsky.social/post/3lbjibw6yt22mHonored to see our paper on #DuckPGQ mentioned by @andypavlo.bsky.social during the CWI lectures! With the introduction of SQL/PGQ, we argue that relational systems (like #DuckDB) can seamlessly handle graph data. Check out the paper here: https://www.cidrdb.org/cidr2023/papers/p66-wolde.pdf22 Nov 2024 07:45 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lbjibw6yt22mhttps://bsky.app/profile/dtenwolde.bsky.social/post/3lbcowgknnk2e🎨 As a little hobby project, I created visualizations for the #DuckDB community extensions using @evidence_dev! Check them out here: duckdb-ce-analysis.evidence.app 🚀 Big thanks to @archie.sarrewood.com for the great feedback along the way! 🙌 https://duckdb-ce-analysis.evidence.app/19 Nov 2024 14:55 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3lbcowgknnk2ehttps://bsky.app/profile/dtenwolde.bsky.social/post/3labfd7s7mz26#DuckPGQ is now available again for #DuckDB v1.1.3! The major change is that property graphs are now persistent, making it easier to manage graph data across sessions 🎉 (Please don't overwrite the table with the name __duckpgq_internal, I use it for persistence 😬)06 Nov 2024 09:05 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3labfd7s7mz26https://bsky.app/profile/dtenwolde.bsky.social/post/3l7sv25xctb2kIt turns out my ‘9,000 connections’ stat was… a little off (thanks to an API quirk that only returned the first 100 followers 🤦). No worries though—I fixed it, scraped more data (still more to come), and cooked up new SQL/PGQ example queries for you! Check them out: https://github.com/Dtenwolde/bluesky-follows-graph31 Oct 2024 14:36 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3l7sv25xctb2khttps://bsky.app/profile/dtenwolde.bsky.social/post/3l7qkbth3ul2aInteresting discovery: there are roughly 9,000 accounts within 5 hops of those I currently follow! 🚀 (I assume I didn't mess up the data gathering) Powered by @duckdb.org with the seamless #SQL/ #PGQ syntax supported in the #DuckPGQ extension. Amazing what you can uncover with the right tools!30 Oct 2024 16:19 +0000at://did:plc:7qqkrwwec4qeujs6hthlgpbe/app.bsky.feed.post/3l7qkbth3ul2a