[Building Blocks] Biting the Bullet: Rebuilding GlareDB from the Ground Up (Sean Smith)

GlareDB is a database system enabling querying across a variety of data sources, including Snowflake, Postgres, and more. Building on top of DataFusion let us get to an early product very quickly. But not everything is sunshine and roses. In this talk, we'll explore some of the limitations we hit with DataFusion, and how we plan to address those in our upcoming engine Bullet. This talk is part of the Database Building Blocks Seminar Series. Zoom Link: https://cmu.zoom.us/j/95283696582 (Passcode 787637) Read More

The Rise of Data Streaming Platforms

Apache Kafka and Apache Flink are powering a new category of data infrastructure called data streaming platform (DSP). This provides an opportunity for each enterprise to take actions on what’s happening in its business in real time. I will first provide an overview of DSP. DSP has both similarities and differences to database systems. I will show how existing database technologies can be used in this new platform and some of the unique problems that DSP needs to solve. I... Read More

[Building Blocks] Implement, Integrate and Extend a Query Engine (Ruihang Xia)

GreptimeDB uses Apache DataFusion and many other common building blocks in its implementation. This talk will focus on managing the query aspect of a (time-series) database across various parts. We have extended DataFusion to implemenet PromQL, add grammar candies to SQL, cooperate with external secondary indexes and write domain-specific optimizer rules etc. Each of above is extended in a different stage of query execution. In addition to new features, we'll also discuss using DataFusion and Arrow as frameworks for implementing... Read More

[Building Blocks] Apache OpenDAL: One Layer, All Storage (Xuanwo)

Apache OpenDAL is an Open Data Access Layer that enables seamless interaction with diverse storage services, guided by its mission of "One Layer, All Storage" and core tenets of being open, solid, fast, and extensible to serve various users from infrastructure builders to application developers. In this talk, we will explain OpenDAL in more detail and describe the abstractions it builds. We will discuss how OpenDAL helps developers build database systems. This talk is part of the Database Building Blocks... Read More