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Help me out with db storage companies that were acquired? - InnoDB (Oracle) - WiredTiger (Mongo) - BerkeleyDB (Oracle) - Oriole (Supabase) - Tabular (Databricks) - Who else? Like the tech was primarily an embedded database intended to be used within some other database system.
the best explainer on b-trees that you are going to get planetscale.com/blog/btrees-an…
If you are in SFO this week, you should check out @CMUDB's #1 PhD student (@SamArchDB) giving talks on how to automatically optimize PL/PSQL UDFs in DuckDB. Python UDFs are coming next...
I am flying to the Bay Area to give talks about my new VLDB 2025 paper on UDFs with @andy_pavlo and @pateljm With our new technique (UDF outlining), queries run up to 1000× faster than FROID. The paper will drop soon. 9/10 @databricks 9/11 @UCBerkeley 9/12 #HTAPSummit2024
finally someone made it – tetris in @PostgreSQL, [almost] in pure SQL, with recursive CTEs github.com/nuno-faria/tet… HN: news.ycombinator.com/item?id=414448… UPD: the repo's README is amazing
VLDB'24 Paper #2: This is our next gen @PostgreSQL AI/ML tuner inspired by LLMs. Instead tuning a single part of DBMS, Proto-X holistically tunes everything: sys/table/index/query knobs, indexes, plans. • Code: github.com/17zhangw/protox • Paper: x.com/pvldb/status/1…
Vol:17 No:11 → The Holon Approach for Simultaneously Tuning Multiple Components in a Self-Driving Database Management System with Machine Learning via Synthesized Proto-Actions vldb.org/pvldb/vol17/p3…
Martin Kleppmann 아저씨는 이를 "schema-on-read"라고 얘기하셨죠: "문서형 데이터베이스는 때때로 schema-less로 불리지만, 이는 오해의 소지가 있습니다. 데이터를 읽는 코드는 보통 어떤 형태의 구조를 가정하기 때문입니다. 즉, 암묵적인 스키마가 존재하지만 데이터베이스에 의해 강제되지…
여기 안나온거 중에 하나 더 있는데... 질문 빌런 있음... 코드 이해 안되는거 계속 물어봄 내가 어려운 코드를 짰으면 친절하게 알려줄텐데, 대학생이라도 알 수 있는 코드를 짰는데, 자기 모르는거 귀찮다고 안찾아보고 질문 함. PR 올릴때마다 이러면 화가나지...ㅎㅎ news.hada.io/topic?id=16472
Oracle Database 12.2. It is close to 25 million lines of C code. news.ycombinator.com/item?id=184429…
I am pleased announce VelarixDB as the 1000th DBMS on the Databases of Databases! VelarixDB is a #rustlang embedded LSM database system that @gifted_dl built as a student in Africa. It's the only DBMS that I am aware of from Nigeria: dbdb.io/db/velarixdb
My team has converted 27M building footprint data of South Korea to @opengeospatial 3D Tiles using building height attributes. The process went smoothly and efficiently. All data has been converted using mago3DTiler (github.com/Gaia3D/mago-3d…), an open-source 3D Tiles converter.
Rules of thumb for writing research articles
The gang hit 4,000. An especially high quality databases and distributed systems community. eatonphil.com/discord.html
How to understand LSM Trees, by Alex Miller. 1. Read Database Internals/DDIA 2. Read LSM Survey Paper(s) 3. Read notable LSM paper See also transactional.blog/how-to-learn/p….
CedarDB is based on Umbra and other related research work. The paper is a great read with a lots of new ideas 📄 Umbra: A Disk-Based System with In-Memory Performance - db.in.tum.de/~freitag/paper…
CedarDB: The 🇩🇪German-powered, PostgreSQL-compatible freak-of-nature database management system based on TUM's Umbra (Thomas Neumann + team) is out of stealth and now available: cedardb.com/blog/ode_to_po… /cc @cedar_db
UPDATED: When I teach Principal Component Analysis (PCA), I use my interactive dashboard with my students so they observe how, through an orthogonal transformation (rotation) of a 2-feature dataset, the variance of the data projected onto one of the components can be maximized.…
Columnar file formats like Parquet/ORC are ubiquitous. Our VLDB paper with @XinyuZeng218 + @huanchenzhang + @wesmckinn studies their internals. TLDR: They're not optimized for modern hardware. Something new is needed. Paper: vldb.org/pvldb/vol17/p1… Code: github.com/XinyuZeng/Eval…
구글에선 디자인 결정을 문서화 하는 문화가 잘 형성되어있다고 생각하는데... 잘 작성된 디자인 문서는 인사평가와 승진 시즌때 아주 중요하기 때문이다 🙃
인공지능을 위한 기초 수학과 관련된 포스팅을 할까 싶긴 한데 다른 분들도 많이 잘 적어두셔서... mml-book.github.io 기초 수학이 필요하시다면 이 책을 읽으시면 됩니다. 이게 전부는 아니지만 필요한건 있어요.
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