An Event for Postgres (pronounced /Pō-zet/, and formerly called Citus Con) is a free and virtual developer event. The name POSETTE stands for Postgres Open Source Ecosystem Talks Training & Education ..read more

PostgreSQL Person of the Week Interview with Nazir Bilal Yavuz: I am Nazir Bilal Yavuz, open source PostgreSQL developer working at Microsoft. I live in Turkey. I spend my free time by doing sports, playing games and football, watching tv series and movies ..read more

Listen/notify in Postgres is an incredible feature that makes itself useful in all kinds of situations. I’ve been using it a long time, started taking it for granted long ago, and was somewhat shocked recently looking into MySQL and SQLite to learn that even in 2024, no equivalent exists. In a basic sense, listen/notify is such a simple concept that it needs little explanation. Clients subscribe on topics and other clients can send on topics, passing a message to each subscribed client. The idea takes only three seconds to demonstrate using nothing more than a psql shell: =# LISTEN test_topic ..read more

At PG Day Chicago, I presented an extended version of my talk given last year at Citus.con – Temporal Tables and Standard. Just between the time my talk was accepted and I delivered the presentation, I learned that PG 17 would include the first-ever support of an important temporal feature: uni-temporal primary keys and unique constraints. It has been a while since the last time I presented anything temporal-related, which meant that many people in the audience hadn’t heard anything about the bitemporal model before. There was no way I could cover everything in 40 minutes ..read more

Introduction – Implicit Conversion Oracle to PostgreSQL migration is a playground that uncovers and touches upon many database concepts, which are always intriguing and fun to explore. Implicit Conversion, i.e., imposing automatic conversion on data types to make them comparable by database optimizers, is also a concept frequently encountered in database migrations. Implicit conversion allows for the automatic conversion of data types for an expression or condition when necessary for SQL execution, thus preventing failures. Implicit conversion can be a performance issue in many cases, but it’s ..read more

1. Overview In this blog post, we will guide you through the process of integrating IvorySQL, an open-source database built on PostgreSQL, into Neon Autoscaling Platform. Throughout this guide, we’ll walk you through each step, providing clear instructions and demonstrations. 2. What is IvorySQL “IvorySQL is advanced, fully featured, open source Oracle compatible PostgreSQL with a firm commitment to always remain 100% compatible and a Drop-in replacement of the latest PostgreSQL. IvorySQL adds a “compatible_db” toggle switch to switch between Oracle and PostgreSQL compatibility modes. One of ..read more

Hacking on PostgreSQL is really hard. I think a lot of people would agree with this statement, not all for the same reasons. Some might point to the character of discourse on the mailing list, others to the shortage of patch reviewers, and others still to the difficulty of getting the attention of a committer, or of feeling like a hostage to some committer's whimsy. All of these are problems, but today I want to focus on the purely technical aspect of the problem: the extreme difficulty of writing reasonably correct patches. Read more ..read more

I wanted to write a “year-in-review” covering all the performance pgvector has made (with significant credit to Andrew Kane), highlighting specific areas where pgvector has improved (including one 150x improvement!) and areas where we can continue to do better. A few weeks ago, I started outlining this post and began my data collection the data. While I was working on this over a two week period, no fewer than three competitive benchmarks against pgvector published. To me, this is a testament both how well pgvector is at handling vector workloads (and by extension, PostgreSQL too) that people ..read more

Explore foundational parameters for maximizing the utility of PostgreSQL logs. The post Logging Basics for PostgreSQL appeared first on Stormatics ..read more

The recent discussion about AIX support in PostgreSQL (as of now removed in PostgreSQL 17) led me to look through the project’s history, to learn what platforms we have supported when. In this context, “platform” really means operating system. One useful proxy is looking at the files in src/template/, because every supported platform needs to be listed there. There are other dimensions, such as what CPU architectures are supported. Historically, this was tied to the operating system (e.g., HP-UX/HPPA, Alpha/Tru64, AIX/PPC, Irix/MIPS), but nowadays, the combinations are more plentiful. CPU supp ..read more