OceanBase Database, is an open-source, distributed Hybrid Transactional/Real-time Operational Analytics (HTAP) database management system that has set new world records in both the TPC-C and TPC-H benchmark tests. OceanBase Database starts from 2010, and it's built from scratch by Alibaba & Ant Group, it provides features of an enterprise-level database, including the native distributed architecture, financial-grade high availability, transparent horizontal... Read More

Neon is a Postgres cloud service that separates compute and storage. Separation of compute and storage makes it possible to scale the components independently, and instant startup without a lengthy restore. Amazon Aurora pioneered the separation of compute and storage for OLTP databases. Neon uses the same concept of applying the WAL stream to reconstruct database state in the storage... Read More

SQLite has long been regarded as an incredibly reliable, fast, & easy-to-use database in the world of personal devices such as laptops & phones. However, it's never gained much traction in the world of web applications because it's built as a single-node database. Litestream adds simple, cheap streaming replication to SQLite to expand the use cases that the database can... Read More

In hypertext world connection proxies is a must for many decades now. And in many cases this idea works for databases too! Today almost any busy OLTP Postgres instance have to use some sort of proxy: old but gold PgBouncer, scalable Odyssey or entirely new SPQR\PgCat. In this talk I'll discuss what allows proxies to be useful, what Postgres hackers... Read More

This talk is part of the ¡Databases! – A Database Seminar Series. Zoom Link: https://cmu.zoom.us/j/94466872009 (Passcode 424050) Read More

Why settle for 1 cool db talk when you can get 3? Snowflake is pushing the boundaries of what a unified cloud data platform can do. Today we'll talk about how Snowflake can be combined with open standards like Apache Iceberg, hard tech to stream data into Snowflake and bring transactional and analytical workloads together in a single platform. Apache... Read More

The increases in main-memory sizes over the last decade have made pure in-memory database systems feasible, and in-memory systems offer unprecedented performance. However, DRAM is still relatively expensive, and the growth of main-memory sizes has slowed down. In contrast, the prices for SSDs have fallen substantially in the last years, and their read bandwidth has increased to gigabytes per second.... Read More

PostgreSQL traditionally has handled IO in a fairly minimal way, relying on the operating system more than most other databases. This talk will discuss why PostgreSQL mostly got away with that so far, why current hardware trends (NVMe with very high bandwidth / low latency, cloud storage with high latency but​ good random / concurrent read behaviour) require changing course... Read More

RonDB is a key-value store with SQL capabilities and LATS (Latency/Availability/Throughput/ScalableStorage) properties. It is based on MySQL NDB Cluster that is used in extremely available applications such as universal data storage for mobile operators for many billions of subscribers. It is also used in gaming applications, financial applications and other areas. The main focus of RonDB in Hopsworks is as... Read More

Data keeps getting bigger, processing keeps getting more and more complex but the hardware does not get faster. We need to reconsider efficiency from the ground up. While these data processing systems handle various workloads (e.g. “batch”, “analytical”, “streaming”, “AI/ML”), they employ common features such as functions, joins, filter-pushdown, sorting, grouping, projections, etc… A shared library that provides optimized implementations... Read More