iiinova — where your digital self keeps evolving

Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 28/09/2026

Today's "Andy at Sea" Database Seminar Speaker: Marco Primi will discuss how @antithesis.com automatically finds bugs in database systems (aka the most important software in the world). Public Zoom talk at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/andy-...

db.cs.cmu.edu

[Andy at Sea] Everything Has Bugs. Here’s How Antithesis Catches Them. - Carnegie Mellon Database Group

Programs used to run on a single computer start to end. Today... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 21/09/2026

Today's "Andy at Sea" Database Seminar Speaker: Owen Xiao will present the architecture of Apache Doris. Public Zoom talk at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/andy-...

db.cs.cmu.edu

[Andy at Sea] Apache Doris: Real-Time Analytics and Search Database for AI Agents - Carnegie Mellon Database Group

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Andy Pavlo @andypavlo.bsky.social · 16/09/2026

I am giving a keynote next Tuesday at the "Rows & Columns Summit" in SFO on the history of hybrid transaction/analytical processing (HTAP) database management systems: Broken Dreams, Broken Promises, Broken Marriages. rowsandcolumnssummit.com

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Andy Pavlo @andypavlo.bsky.social · 28/08/2026

If you're coming to #VLDB2026, join me + @clickhouse.com for data trivia on Monday Aug 31st @ 6pm. I will be hosting the database trivia section (aka the best part). Invite open to the public: luma.com/clickh-thmi Co-sponsored by @temporal.io + PuppyGraph

luma.com

The Boston Data Party Trivia Night · Luma

Join us for a night of data, drinks, and friendly competition during VLDB in Boston! ClickHouse, Temporal, and PuppyGraph are teaming up to host a trivia night…

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Andy Pavlo @andypavlo.bsky.social · 13/08/2026

New @db.cs.cmu.edu Seminar Series: Whatever Andy Found Interesting While Out At Sea An eclectic collection of database technical talks. Mondays @ 4:30pm ET starting Sep 21 over Zoom. Open to the public. Video on Youtube afterwards. db.cs.cmu.edu/seminars/fal...

db.cs.cmu.edu

Whatever Andy Found Interesting While Out At Sea - Carnegie Mellon Database Group

This semester, the Carnegie Mellon University Database Group is launching a seminar... Read More +

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Andy Pavlo @andypavlo.bsky.social · 13/08/2026

Our new version of dbdb.io tracks the commit history of open-source databases. We also track which coding agents are tagged in commits. Copilot has the most overall usage but Claude occurs in the most recent commits.

Histogram of the number of database systems that use an agent in at least one commit since 2022.

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Andy Pavlo @andypavlo.bsky.social · 03/08/2026

👊I've joined the crew at @clickhouse.com to establish the *ClickHouse Labs* research group. We'll be working side-by-side with ClickHouse engineers to cook up ways to make the system even faster. I'll also be exploring new research topics related to PostgreSQL. clickhouse.com/blog/andy-pa...

clickhouse.com

Andy Pavlo joins ClickHouse to establish ClickHouse Labs | ClickHouse

I am excited to announce that I am joining ClickHouse, Inc. to establish and lead a new research team at ClickHouse Labs.

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Andy Pavlo @andypavlo.bsky.social · 31/07/2026

I was heartened to see so many former @db.cs.cmu.edu students lighting it up at Snowflake today! Graduation dates range from 2018 to 2026!

Everyone loves to hear people talk about databases.

Andy is surprised that he has taught so many students and yet none of them have tried to stab him with a broken bottle.

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Andy Pavlo @andypavlo.bsky.social · 06/07/2026

My former #1 PhD students @wslim.bsky.social @17zhangw.bsky.social have a new startup @onewill.ai on controlling agent behavior. Git protects your code. But agents do more than spit code. Databases already solved this. OneWill makes agents live database-centric lifestyles. Demo: youtu.be/7zeeaklngTE

youtu.be

OneWill - Agent Retcon Demo

YouTube video by OneWill

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Reposted by Andy Pavlo

Yaroslav Tkachenko @sap1ens.com · 20/05/2026

Found a love letter to @andypavlo.bsky.social at #PgConf in Vancouver

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Andy Pavlo @andypavlo.bsky.social · 08/05/2026

I'm excited to announce CMU-DB's DJ Cache ran the whole @cmu.edu circuit by winning the "Most Dank DJ" award again! This semester was the most vicious bracket ever seen in the cut. Every set was a straight-up street fight on the aux. Congratulations!

DJ Cache winning the Spring 2026 "Most Dank DJ" award at Carnegie Mellon University

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Reposted by Andy Pavlo

SIGMOD/PODS Conference @sigmodconf.bsky.social · 29/04/2026

#SIGMOD2026 Research Track Honorable Mention: F3: The Open-Source Data File Format for the Future Xinyu Zeng, Ruijun Meng, Martin Prammer, @wesmckinney.com, @pateljm.bsky.social , @andypavlo.bsky.social, and Huanchen Zhang 2026.sigmod.org/sigmod_award... #ACM #sigmodresearchtrack #sigmodawards

2026.sigmod.org

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Andy Pavlo @andypavlo.bsky.social · 07/05/2026

We now offer @db.cs.cmu.edu's Database Systems course offline to incarcerated students across US prisons. No WiFi, completely free. Locked in by the system, freed by the lock manager: db.cs.cmu.edu/2026/05/cmud... Thanks to @convex.dev for helping make sure the database game is for everybody!

CMU Database Group
Prisoner Database Education Program

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 27/04/2026

Today's Postgres vs. World Seminar Speaker: Dr. Xiangyao Yu (@xiangyaoyu.bsky.social) will present the architecture of the Sirius GPU-native database system. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

Sirius: A GPU-Native SQL Engine (Xiangyao Yu) - Carnegie Mellon Database Group

GPUs have evolved into powerful, cost-efficient engines for general-purpose parallel compute. This... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 20/04/2026

Today's Postgres vs. World Seminar Speaker: Steve Schirripa (MSE'00) will present how @villagesql.bsky.social is injecting new life into MySQL via extensions. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

The Extensibility Tax: Decisions, Principles, and Lessons from a Year of Teaching MySQL New Tricks (Steve Schirripa) - Carnegie Mellon Database Group

What does it take to add custom data types and indexes to... Read More +

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Andy Pavlo @andypavlo.bsky.social · 16/04/2026

The founders of FloeDB (Mark Cusack + Kurt Westerfeld) gave an interesting @db.cs.cmu.edu talk their new Iceberg-compatible query engine. Two key takeaways from their talk: 1️⃣ Floe is a hard fork of Yellowbrick. 2️⃣ Floe is building a "catalog-of-catalogs" www.youtube.com/watch?v=Kq3c...

youtube.com

Floe: A SQL Compute Service for the Data Lakehouse (Kurt Westerfeld + Mark Cusack)

YouTube video by CMU Database Group

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 13/04/2026

Today's Postgres vs. World Seminar Speaker: Sugu Sougoumarane (ex-Vitess/PlanetScale) will present the architecture of @supabase.com's Multigres horizontal sharding system for Postgres. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

Multigres: Bringing Horizontal Scaling and Enterprise Operations to PostgreSQL (Sugu Sougoumarane) - Carnegie Mellon Database Group

Multigres is an adaptation of Vitess for PostgreSQL that enables horizontal scaling... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 06/04/2026

Today's Postgres vs. World Seminar Speaker: Tyler F. Cloutier will explain why and how they embedded a MMORPG game engine inside of the @spacetimedb.bsky.social database system. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

Inverting the Backend: Why We Built our MMORPG Inside a Database (Tyler Cloutier) - Carnegie Mellon Database Group

This talk explores what happens when you move all the infrastructure and... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 30/03/2026

Today's Postgres vs. World Seminar Speaker: Dr. Marcel Kornacker will present the design & implementation of the Pixeltable multi-modal DBMS based on PostgreSQL. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

Pixeltable: A DBMS for Multimodal AI Applications (Marcel Kornacker) - Carnegie Mellon Database Group

Pixeltable is a novel OLTP DBMS specifically designed for multimodal AI applications.... Read More +

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Andy Pavlo @andypavlo.bsky.social · 27/03/2026

Thanks to Google BigTable for providing prizes to the top 3 @db.cs.cmu.edu students with the fastest projects in our Database Systems course this semester! They have to implement a buffer pool, B+Tree, query executors, and MVCC. Students are encouraged to profile+benchmark to get better rankings.

Prizes for the top 3 students in CMU's Intro to Database Systems course in Spring 2026.
https://15445.courses.cs.cmu.edu/spring2026/

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Andy Pavlo @andypavlo.bsky.social · 25/03/2026

This email showed up two weeks ago. It is super sketchy so I didn't respond. They followed again but I'm not meeting them. Andy and the police don't mix. 👑 Remember Rule #9 from Biggie's Ten Crack Commandments: If you aren't being arrested, stay away from police youtu.be/ot9NT9W0Fog

Number nine shoulda been number one to me
If you ain't gettin' bagged, stay the fuck from police
If ****** think you snitchin' they ain't tryna listen
They be sittin' in your kitchen, waiting to start hittin'

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 23/03/2026

Today's Postgres vs. World Seminar Speaker: Filip Obradovic will present the wild architecture of TonicDB. It runs directly on hardware without an OS via a shim layer / unikernel. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

TonicDB: Databases without an OS? Meet QuinineHM (Filip Obradovic) - Carnegie Mellon Database Group

We spent years optimizing database internals, only to have our performance eaten... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 16/03/2026

Today's Postgres vs. World Seminar Speaker: Hari Krishna Sunder will present the architecture of the @yugabytedb.bsky.social distributed DBMS based on Postgres. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

YugabyteDB: Distributed PostgreSQL for Modern Apps (Hari Krishna Sunder) - Carnegie Mellon Database Group

YugabyteDB is an AI-ready, multimodal, distributed PostgreSQL database. It effectively bridges the... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 09/03/2026

Today's Postgres vs. World Seminar Speaker: Simon Eskildsen will present the architecture of the @turbopuffer.bsky.social search engine. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

turbopuffer: Object Storage-native Database for Search (Simon Eskildsen) - Carnegie Mellon Database Group

turbopuffer is an object storage-native search engine. It puffs data into a... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 23/02/2026

Today's Postgres vs. World Seminar Speaker: Adam Prout will present the architecture of Microsoft Azure HorizonDB database service based on PostgreSQL. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

HorizonDB: Co‑Designing PostgreSQL and Azure for Cloud‑Native OLTP (Adam Prout) - Carnegie Mellon Database Group

Azure HorizonDB is a new PostgreSQL service that improves the OLTP performance... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 16/02/2026

Today's Postgres vs. World Seminar Speaker: Marek Galovic will present the TopK document + vector search engine system. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

TopK: Billion-Scale Hybrid Retrieval from the Ground Up (Marek Galovic) - Carnegie Mellon Database Group

TopK is a search engine built from the ground up for unstructured... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 09/02/2026

Today's Postgres vs. World Seminar Speaker: Marc Brooker (@marcbrooker.bsky.social) will present the architecture of Amazon's Aurora DSQL Postgres-compatible serverless OLTP DBMS. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

Aurora DSQL: Serverless, Scalable, Global OLTP (Marc Brooker) - Carnegie Mellon Database Group

Amazon Aurora DSQL is a distributed SQL database, designed to make it... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 02/02/2026

Today's Postgres vs. World Seminar Speaker: Tyler Akidau + Adam Symanski will present the architecture of @redpanda.com's Oxla database system. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/pg-vs...

db.cs.cmu.edu

Redpanda Oxla or: Why Your Hashmaps are Secretly Wrecking Your Performance (Tyler Akidau + Adam Symanski) - Carnegie Mellon Database Group

In this talk, we’ll first give an overview of the Oxla analytical... Read More +

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Andy Pavlo @andypavlo.bsky.social · 30/01/2026

Spring 2026 Seminar Series: PostgreSQL vs. The World db.cs.cmu.edu/seminars/spr... First talk on Mon Feb 2nd @ 4:30pm EST. We will alternate between a speaker from either a Postgres DBMS or a non-Postgres DBMS. Open to the public over Zoom. All videos available on YouTube afterwards.

db.cs.cmu.edu

PostgreSQL vs. The World Seminar Series - Carnegie Mellon Database Group

Every major cloud vendor now offers an enhanced, opinionated PostgreSQL-compatible database management... Read More +

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Andy Pavlo @andypavlo.bsky.social · 22/01/2026

Thanks to Bohan Zhang for hosting me at OpenAI yesterday. Lots of @db.cs.cmu.edu alum are thriving there. Plus the Rockset squad rolled up. It was the nicest tech office I've visited in my life. It was like a classy lawfirm but with an insane number of ex-FBI bouncers at the front entrance.

Andy speaking at OpenAI on Wednesday January 21, 2026.

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Andy Pavlo @andypavlo.bsky.social · 22/01/2026

Congratulations to the 2026 CIDR prize awardees! Tianyu Li → Gong Show Winner Fuheng Zhao → Database Quiz Winner They each received a rare signed print of "The Birth of the Database Messiah" (estimated insurance value $12,000).

Tianyu Li (Wisconsin)
CIDR 2026 Gong Show Winner

Fuheng Zhao
CIDR 2026 Database Quiz Winner

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Andy Pavlo @andypavlo.bsky.social · 13/01/2026

I recently came across this database system in my travels: medium.com/@sschepis/i-... The title immediately raises my BS alarms. They claim to "teleport data" via "quantum mechanical principles".

I Built a Database that Teleports Data Instead of Transmitting it
https://medium.com/@sschepis/i-built-a-database-that-teleports-data-instead-of-transmitting-it-518bb34986f7

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Andy Pavlo @andypavlo.bsky.social · 12/01/2026

I don't want to cook such an early stage company but I think these people are trying to sell MMAP as a service?!? No technical details except it appears to be a MMAP buffer pool. I also don't know why their system is "fully ACID" but RocksDB is not? ryjoxdemo.com/solutions/ed...

Synrix MMAP Comparison Table
https://ryjoxdemo.com/benchmarks

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Andy Pavlo @andypavlo.bsky.social · 09/01/2026

At least this scam company remembered to sanitize their database inputs before sending out their spam...

Little Bobby Tables' Go To Market Strategy

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Andy Pavlo @andypavlo.bsky.social · 05/01/2026

I've posted my latest recap of the world of databases: www.cs.cmu.edu/~pavlo/blog/... All the hot topics from the last year: • More Postgres action! • MCP for everyone! • MongoDB gets litigious with FerretDB! • File formats! • Market movements! • The richest person in the history of the world!

cs.cmu.edu

Databases in 2025: A Year in Review

The world tried to kill Andy off but he had to stay alive to to talk about what happened with databases in 2025.

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Andy Pavlo @andypavlo.bsky.social · 17/12/2025

Congratulations to the #1 ranked @db.cs.cmu.edu PhD student Wan Shen Lim (@wslim.bsky.social) for successfully passing his doctoral defense. Wan has been working on hard AF database research with me for the last *nine* years at CMU (undergrad+grad). He also hates chickens.

Andy aggressively holding Wan after completing his thesis defense.

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Reposted by Andy Pavlo

David Andersen @daveandersen.bsky.social · 09/12/2025

in a tiny job update: I'm taking over as co-director of CMU's parallel data lab (PDL). in a bad news update: I just used the phrase "align with CMU's brand strategy" unironically in an email to the administration. might need an intervention...

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 08/12/2025

Today's Future Data Systems Seminar Speaker: Jark Wu from AlibabaCloud will present an overview of Apache Fluss. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/futur...

db.cs.cmu.edu

[Future Data] Apache Fluss: A Streaming Storage for Real-Time Lakehouse - Carnegie Mellon Database Group

Modern data lakehouses promise unified batch and streaming processing, yet their storage... Read More +

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Andy Pavlo @andypavlo.bsky.social · 05/12/2025

Do you like databases? Do you want to hear two database professors rant about them? Do you need one of those professors to have a Turing Award for databases? If yes, then join Mike Stonebraker and I next Wed Dec 10 @ 1:00pm EST for database hot takes: www.dbos.dev/webcast-2025...

dbos.dev

2025 in Review with Mike Stonebraker and Andy Pavlo

Webcast Dec 10: DBMS researchers Mike Stonebraker (MIT / DBOS) and Andy Pavlo (CMU) discuss which data and CS trends are heating up or cooling down heading into 2026.

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Reposted by Andy Pavlo

Conor Power @conorpower23.bsky.social · 01/12/2025

There is still time to register for CIDR 2026 in Santa Cruz! If you need a roommate for the conference, there is also a spreadsheet you can use to find someone! www.cidrdb.org/cidr2026/reg...

cidrdb.org

CIDR 2026 - Registration

The 16th Conference on Innovative Data Systems Research (CIDR 2026), Registration Information

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 01/12/2025

Today's Future Data Systems Seminar Speaker: Prashant Singh from Snowflake will present the Apache Polaris re-implementation of the Iceberg REST catalog API. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/futur...

db.cs.cmu.edu

[Future Data] From Storage Formats to Open Governance: The Evolution to Apache Polaris - Carnegie Mellon Database Group

As organizations build their data lakehouses on Apache Iceberg, the primary challenge... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 24/11/2025

Today's Future Data Systems Seminar Speaker: Jeremy Taylor (@refset.bsky.social) will present the architecture of the XTDB (@xtdb.com) time-traveling database system. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/futur...

db.cs.cmu.edu

[Future Data] Reconstructing History with XTDB - Carnegie Mellon Database Group

XTDB is a SQL database that challenges long held assumptions about how... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 17/11/2025

Today's Future Data Systems Seminar Speaker: Benjamin Wagner🇩🇪 will present @firebolthq.bsky.social's native support for low-latency queries on Apache Iceberg tables. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/futur...

db.cs.cmu.edu

[Future Data] Why Powering User Facing Applications on Iceberg is Hard - Carnegie Mellon Database Group

Firebolt is a Postgres compliant analytical database built for low-latency, high-concurrency analytics.... Read More +

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Reposted by Andy Pavlo

CMU Database Group @db.cs.cmu.edu · 10/11/2025

Today's Future Data Systems Seminar Speaker: Cheng Chen will present how @mooncakelabs.bsky.social extends PostgreSQL to support Apache Iceberg. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/futur...

db.cs.cmu.edu

[Future Data] Mooncake: Real-Time Apache Iceberg Without Compromise - Carnegie Mellon Database Group

Apache Iceberg is great for large-scale analytics, but it was built for... Read More +

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Reposted by Andy Pavlo

Sam Arch @samarchdb.bsky.social · 03/11/2025

Great idea to compare plans across different systems using rows processed. A good yardstick, but slower sort-based plans from Postgres + MSSQL process fewer rows than faster hash-based plans from DuckDB. Postgres rows scanned also seem underreported. Nice to see some competition with ClickBench.

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Andy Pavlo @andypavlo.bsky.social · 03/11/2025

New database leaderboard from Yellowbrick ranks the quality of DBMS optimizer estimates and plans. They only evaluate TPC-H for now and report results for Postgres + DuckDB + MSSQL: sql-arena.com/components/p... Repo: github.com/sql-arena/db... LinkedIn Group: www.linkedin.com/groups/15775...

SQL Arena Planner Ranking (November 2025)

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