Viewing profile — apavlo

There are several out of date entries in there. We used to have students help with writing entries. I just did a major refresh of the site this summer. I need to go through all the…

Remy - Good to hear from you. Yes things are mess right now. Let me get settled with setting up the lab and we'll figure out how we want to engage with academia.

TBD

They will continue. New seminar series starts next month (announcement coming this week).

I'm not sure what you think "research lab" means? As I mentioned in the article, we look at IBM Research (Almaden) and Microsoft Research as inspiration.

I've never heard of the "Willow" data model before. It looks just like the hierarchical data model (restricted to two levels) from the 1960s with timestamp versioning. It is not cl…

For those that are unaware, the instructor of this is on the board of OpenAI: https://openai.com/index/zico-kolter-joins-openais-board-of-...

> I'd love to hear about semantic layer developments in this space (e.g. Malloy etc.) We also hosted Llyod to give a talk about Malloy in March 2025: https://db.cs.cmu.edu/events/s…

> How is SpacetimeDB not mentioned here? https://www.cs.cmu.edu/~pavlo/blog/2026/01/2025-databases-re...

> none of the reviews of the last few years mention immutable and/or bi-temporal databases. We hosted XTDB to give a tech talk five weeks ago: https://db.cs.cmu.edu/events/futureda…

> Am I living in a bubble? There are rumblings that the MySQL project is rudderless after Oracle fired the team working on the open-source project in September 2025. Oracle is putt…

> Nothing about time series-oriented databases? https://www.cs.cmu.edu/~pavlo/blog/2026/01/2025-databases-re...

> I can't believe that article has no mention of SQLite ?? https://www.cs.cmu.edu/~pavlo/blog/2026/01/2025-databases-re...

Thanks for catching this. Updated: https://www.cs.cmu.edu/~pavlo/blog/2026/01/2025-databases-re... I need to figure out an automatic way to track these.

> If the org behind it ever decides to rugpull/elastic you I love it that you use "elastic" as a verb here.

> so... you take 10%-30% performance hit _right away_, and you perpetually give up any opportunities to improve the decoder in the future. The WASM is meant as a backup. If you hav…

The backstory is complicated. The plan was to establish a consortium between CMU, Tsinghua, Meta, CWI, VoltronData, Nvidia, and SpiralDB to unify behind a single file format. But t…

> • Memory-Mapping (mmap): We treat the database file as if it’s already in memory, eliminating the distinction between disk and RAM. Ugh, not another one...

You are conflating MySQL and InnoDB. The latter does a lot of good things, much more than the former.

They double dip. You pay them to review your company. Other companies pay them to read those reviews.

Dude fix your DBMS implementation before you start losing people's data. Or switch to something vetted like SQLite.

This schedule is not finalized yet.

> I'm gonna have to implement my own buffer pool and manage my reads directly like that vexatious paper[1] said all along. You make it sound like I was trying to troll everyone whe…

"Bridged Indexes" is a non-standard term. These are just secondary indexes using logical pointers with a mapping index. IIRC, Oracle, Hana, and HyPer do the same thing. Source: htt…

> It's quite amazing how a db like this shows that all of those row-based dbs are doing something wrong They're not "doing something wrong". They are designed differently for diffe…