David Li
lidavidm.bsky.social
David Li
@lidavidm.bsky.social
PMC member for Apache Arrow.
Reposted by David Li
The future of data connectivity is columnar. Today we launched
@columnar.tech to accelerate the shift from slow, row-oriented APIs like ODBC and JDBC to >10x faster alternatives powered by @arrow.apache.org. Learn more 👇
Announcing Columnar
Back to the future of data connectivity
columnar.tech
October 29, 2025 at 10:51 PM
Reposted by David Li
ODBC is getting tired. It just can't keep up with the fast new kids in the data world these days. The next generation is ready to take the torch. Meet ADBC, a fast, modern data connectivity standard built on @arrow.apache.org. Watch my new talk from the @db.cs.cmu.edu seminar: youtu.be/TjlmNGNx77E
Where We’re Going, We Don’t Need Rows: Columnar Data Connectivity with Apache Arrow ADBC (Ian Cook)
YouTube video by CMU Database Group
youtu.be
October 23, 2025 at 3:52 PM
me: i have a huge backlog of things to read
also me:
October 20, 2025 at 1:40 AM
June 22, 2025 at 6:07 AM
I will not trust macOS with external drives ever again. "First Aid" seems to have deleted directories from my local backup SSD...thankfully I have another backup in Backblaze but it's a bit older :/
Good (and painful) reminder to back up regularly!
April 19, 2025 at 12:36 PM
@yatosaking.bsky.social 様、 @galetteweb.bsky.social
失礼いたします。
色紙を心より感謝しております。
(キラキラしているところ特にお気に入ります)
これからも先生とガレットを応援いたします!
April 19, 2025 at 8:59 AM
日本ね…バッグをスーパーに持って行っても、店員さんは各買い物を丁寧にビニール袋をつけてくれた😅
April 19, 2025 at 8:46 AM
今日TimeLeftアプリのミートアップをやってた。私は会話能力(?)あんまりなくてもけっこ楽しかったと思う
これから頑張らなきゃ
April 16, 2025 at 1:26 PM
PRレビューのためにPostgresと比較しようと思ってたけど…これはこわっ😱
April 15, 2025 at 5:53 AM
The favorite flower of Himmel the Hero.

Showa Kinen Park, Tachikawa, Tokyo
Olympus E-M10 Mk2/TTArtisans 35mm f/1.4
April 5, 2025 at 11:47 AM
Spotted in discord (and paraphrased to protect the innocent):

"I don't particularly like actually doing the job, but thinking about it? Hoo boy"

(Someday I'll make that teaching implementation of Arrow...)
April 5, 2025 at 11:03 AM
The sakura are not _quite_ there, but almost!
March 26, 2025 at 5:17 AM
Kou has a blog post too: x.com/ktou/status/...
March 21, 2025 at 6:41 AM
Reposted by David Li
Check out what is new on the Apache Arrow ADBC 17 libraries release: arrow.apache.org/blog/2025/03...
Apache Arrow ADBC 17 (Libraries) Release
The Apache Arrow team is pleased to announce the version 17 release of the Apache Arrow ADBC libraries. This release includes 18 resolved issues from 13 distinct contributors. This is a release of the...
arrow.apache.org
March 7, 2025 at 11:12 AM
Data wants to be free: comparing and explaining how Arrow's data serialization can be better than what's in protocols like PostgreSQL's

arrow.apache.org/blog/2025/02...

#apachearrow #arrow
Data Wants to Be Free: Fast Data Exchange with Apache Arrow
Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics. It specifies a standardized language-independent column-oriented memory form...
arrow.apache.org
February 28, 2025 at 6:14 AM
Reposted by David Li
2025 is shaping up to be a breakout year for fast query result transfer with Apache Arrow. But what exactly makes it so fast? David Li, Matt Topol, and I break it down in this new blog post: arrow.apache.org/blog/2025/01...
How the Apache Arrow Format Accelerates Query Result Transfer
Arrow speeds up query result transfer by slashing (de)serialization overheads. We outline five key attributes of the Arrow format that enable this.
arrow.apache.org
January 13, 2025 at 4:25 PM