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CMU Database Group

@db.cs.cmu.edu

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Carnegie Mellon Database Research Group https://db.cs.cmu.edu/

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CMU Database Group @db.cs.cmu.edu · 2d

Today's Future Data Systems Seminar Speaker: Will Manning (@willmanning.com) will present @spiraldb.com's Vortex file format. Vortex is now a @linuxfoundation.org project. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/futur...

[Future Data] Vortex: LLVM for File Formats - Carnegie Mellon Database Group

Apache Parquet revolutionized columnar storage after its initial release in 2013, but... Read More +

CMU Database Group @db.cs.cmu.edu · 9d

Today's Future Data Systems Seminar Speaker: Jordan Tigani (@jrdntgn.bsky.social) will present how @motherduck.com supports modern workloads with DuckLake. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/futur...

[Future Data] DuckLake: Learning from Cloud Data Warehouses to Build a Robust "Lakehouse" - Carnegie Mellon Database Group

When building scalable data systems, it is easy to focus on the... Read More +

CMU Database Group @db.cs.cmu.edu · 16d

Today's Future Data Systems Seminar Speaker: Vinoth Chandar will present the internals of Apache Hudi and his work at Onehouse. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/futur...

[Future Data] Apache Hudi: A Database Layer over Cloud Storage for Fast Mutations and Efficient Queries - Carnegie Mellon Database Group

Data lakes emerged as a way to store vast amounts of data... Read More +

CMU Database Group @db.cs.cmu.edu · 23d

Today's Future Data Systems Seminar Speaker: Russell Spitzer will present the internals of Apache Iceberg's query planner and execution engine. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/futur...

[Future Data] An Extremely Technical Overview of how the Apache Iceberg™ Planning Implementation Actually Works - Carnegie Mellon Database Group

What are you trying to tell me? That I can read data... Read More +

CMU Database Group @db.cs.cmu.edu · Apr 21

Today's SQL or Death Seminar Speaker: Michael Sullivan (PhD'17) will present @geldata.com's "graph-relational" data model and query language to replace SQL. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/sql-d...

[SQL Death] Gel: Replacing* SQL and Improving on the Relational Database Model - Carnegie Mellon Database Group

Gel (formerly EdgeDB) is a new database built around an evolution of... Read More +

CMU Database Group @db.cs.cmu.edu · Apr 14

Today's SQL or Death Seminar Speaker: Monty Widenius (creator of MySQL + MariaDB + MaxDB) will present @mariadb.bsky.social's new query optimizer architecture. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/sql-d...

[SQL Death] MariaDB's Query Optimizer: A Multi-tool That Does Some Things Differently - Carnegie Mellon Database Group

MariaDB’s query optimizer stems from MySQL’s original implementation. It didn’t come from... Read More +

CMU Database Group @db.cs.cmu.edu · Apr 7

CMU-DB PhD student Will Zhang wins 2025 @mongodb.bsky.social PhD Fellowship for his research on autonomous database optimization and tuning: db.cs.cmu.edu/2025/04/will...

Will Zhang Wins 2025 MongoDB PhD Fellowship - Carnegie Mellon Database Group

Pittsburgh, PA – Carnegie Mellon University announced that Will Zhang, the #1... Read More +

CMU Database Group @db.cs.cmu.edu · Apr 7

Today's SQL or Death Seminar Speaker: Ben Naecker from @oxide.computer will explain why a hardware company decided to make a new query language (OxQL) because SQL wasn't good enough! Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/sql-d...

[SQL Death] OxQL: Oximeter Query Language - Carnegie Mellon Database Group

Oxide Computer Company builds private cloud computers–co-designing hardware and software that works... Read More +

CMU Database Group @db.cs.cmu.edu · Mar 24

Today's SQL or Death Seminar Speaker: @tobiasbrandt.bsky.social will present the #PRQL replacement for SQL. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/sql-d...

[SQL Death] PRQL: Pipelined Relational Query Language - Carnegie Mellon Database Group

The past 50 years have seen a great evolution in programming languages... Read More +

CMU Database Group @db.cs.cmu.edu · Mar 17

Today's SQL or Death Seminar Speaker: @lloydtabb.bsky.social will present the Malloy query language that seeks to replace SQL for data analysis. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/sql-d...

[SQL Death] Malloy: A Modern Open Source Language for Analyzing, Transforming, and Modeling Data - Carnegie Mellon Database Group

In software we express our ideas through tools. In data, those tools... Read More +

CMU Database Group @db.cs.cmu.edu · Mar 10

Today's SQL or Death Seminar Speaker: Jeff Shute from Google will present their Pipe Syntax Enhancements for SQL. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/sql-d...

[SQL Death] Pipe Syntax in SQL: SQL for the 21st Century - Carnegie Mellon Database Group

SQL has been extremely successful as the de facto standard language for... Read More +

CMU Database Group @db.cs.cmu.edu · Feb 24

Today's SQL or Death Seminar Speaker: Yash Mayya + @gortiz.bsky.social from @startreedata.bsky.social will discuss how to support multiple query languages at the same time in Apache Pinot. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/sql-d...

[SQL Death] Apache Pinot Query Optimizer - Carnegie Mellon Database Group

Apache Pinot is a distributed real-time OLAP database, part of a fast-growing... Read More +

CMU Database Group @db.cs.cmu.edu · Feb 17

Today's SQL or Death Seminar Speaker: The Germans (Viktor Leis + Thomas Neumann) from @tum.de want to replace SQL with Sane Intermediate Representation (SaneIR) for relational query execution. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/sql-d...

[SQL Death] Towards Sanity in Query Languages - Carnegie Mellon Database Group

The relational model has stood the test of time is the foundation... Read More +

CMU Database Group @db.cs.cmu.edu · Feb 10

Today's SQL or Death Seminar Speaker: @jamescowling.dev (@convex.dev co-founder) will profess his love for Larry Ellison and @typescriptlang.org stored procedures. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/sql-d...

[SQL Death] Larry Ellison was Right (kinda)! TypeScript Stored Procedures for the Modern Age - Carnegie Mellon Database Group

No one uses SQL to write business logic. It’s written in a... Read More +

CMU Database Group @db.cs.cmu.edu · Dec 9

Today's Database Building Blocks Seminar Speaker: Ruihang Xia will present the GreptimeDB time-series DBMS architecture. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/build...

▶️ This talk is the makeup from the earlier cancelled event from Nov 25th.

Implement, Integrate and Extend a Query Engine

GreptimeDB uses Apache DataFusion and many other common building blocks in its... Read More +

CMU Database Group @db.cs.cmu.edu · Dec 2

Today's Database Building Blocks Seminar Speaker: Xuanwo from @databend.com will present the Apache OpenDAL framework for integrating object stores in database systems. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/build...

Apache OpenDAL: One Layer, All Storage

Apache OpenDAL is an Open Data Access Layer that enables seamless interaction... Read More +

CMU Database Group @db.cs.cmu.edu · Nov 25

Today's Database Building Blocks Seminar Speaker: Ruihang Xia will present the GreptimeDB time-series DBMS architecture. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/build...

Implement, Integrate and Extend a Query Engine

GreptimeDB uses Apache DataFusion and many other common building blocks in its... Read More +

CMU Database Group @db.cs.cmu.edu · Nov 18

Today's Database Building Blocks Seminar Speaker: Sean Smith (Founder) will present the ups and downs in his journey of rewriting GlareDB to use Apache DataFusion. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/build...

[Building Blocks] Biting the Bullet: Rebuilding GlareDB from the Ground Up (Sean Smith) - Carnegie Mellon Database Group

GlareDB is a database system enabling querying across a variety of data... Read More +