Citus Blog

Articles tagged: Microsoft

Claire Giordano

What’s new with Postgres at Microsoft (August 2023)

Written byBy Claire Giordano | August 31, 2023Aug 31, 2023

On one of the Postgres community chat forums, a friend asked me: "Is there a blog post that outlines all the work that is being done on Postgres at Microsoft? It's hard to keep track these days."

And my friend is right: it is hard to keep track. Probably because there are multiple Postgres workstreams at Microsoft, spread across a few different teams.

In this post, you'll get a bird's eye view of all the Postgres work the Microsoft team has done over the last year. Our work includes some pretty significant improvements to the Postgres managed services on Azure, as well as contributions across the entire open source ecosystem—including commits to the Postgres core; new releases to Postgres open source extensions like Citus and pg_cron; plus ecosystem work on Patroni, PgBouncer, pgcopydb. And more.

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As you may have heard, we recently made PostgreSQL 15 generally available in Azure Cosmos DB for PostgreSQL within just 1 week of the PostgreSQL 15 release. The Postgres 15 version is available for you whether you need to create a new cluster in Azure Cosmos DB for PostgreSQL, or upgrade your existing cluster. (Note: you can do in-place major version upgrades in Azure Cosmos DB for PostgreSQL.) And the PostgreSQL 15 support is available in all Azure regions that support Azure Cosmos DB for PostgreSQL.

You may be surprised since it's usually not the norm for a managed database service to start supporting the new major PostgreSQL version that early... This post will walk you through what's going on behind the scenes that enables us to do such a feat. Some background before diving in:

Azure Cosmos DB for PostgreSQL is powered by native Postgres and Citus open source—and enables you to run PostgreSQL at any scale, from a single node to a large, distributed cluster. Customers can also scale out as much as they want depending on their needs with many additional features. The Hyperscale (Citus) managed service recently moved into Azure Cosmos DB family (more info on the launch of Azure Cosmos DB for PostgreSQL in this blog post) and with that introduced try Azure Cosmos DB for PostgreSQL for free where you can try out PostgreSQL 15 with Citus 11.1.

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Nik Larin

News: Postgres 15 available in Azure Cosmos DB for PostgreSQL

Written byBy Nik Larin | October 21, 2022Oct 21, 2022

Big news from the Postgres and Citus team here at Microsoft! Just 1 week after PostgreSQL 15 was released, PostgreSQL 15 GA is generally available in the portal for the Azure Cosmos DB for PostgreSQL managed service—in all Azure regions. Whether you need to provision new clusters in Azure Cosmos DB for Postgres—or upgrade your existing database clusters—Postgres 15 is now a choice for you. Oh, and you can upgrade your existing cluster to Postgres 15 from any of the other supported major Postgres versions, using the in-place major version upgrade feature.

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Today, we are excited to announce PostgreSQL 14's General Availability (GA) on Azure's Hyperscale (Citus) option. To our knowledge, this is the first time a major cloud provider has announced GA for a new Postgres major version on their platform one day after the official release.

Starting today, you can deploy Postgres 14 in many Hyperscale (Citus) regions. In upcoming months, we will roll out Postgres 14 across more Azure regions and also release it with our new Flexible Server option in Azure Database for PostgreSQL.

This announcement helps us bring the latest in Postgres to Azure customers as new features become available. Further, it shows our commitment to open source PostgreSQL and its ecosystem. We choose to extend Postgres and share our contributions, instead of creating and managing a proprietary fork on the cloud.

In this blog post, you'll first get a glimpse into some of our favorite features in Postgres 14. These include connection scaling, faster VACUUM, and improvements to crash recovery times.

We'll then describe the work involved in making Postgres extensions compatible with new major Postgres versions, including our distributed database Citus as well as other extensions such as HyperLogLog (HLL), pg_cron, and TopN. Finally, you'll learn how packaging, testing, and deployments work on Hyperscale (Citus). This last part ties everything together and enables us to release new versions on Azure, with speed.

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There is some good news for those of you wanting to shard your Postgres database in the cloud, so that as your data grows you have an easy way to scale out your Postgres database. I’m delighted to announce that Citus 10—the latest open source release of the Citus extension to Postgres—is now generally available in Hyperscale (Citus).

Hyperscale (Citus) is a built-in option in the Azure Database for PostgreSQL managed service, which has been around for a couple of years to help those of you who would rather focus on your application—and not on spending cycles managing your database.

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It’s been an eventful time for Hyperscale (Citus) lately. If you’re interested in Postgres, distributed databases, and how to handle ever growing needs for your Postgres application or simply use Hyperscale (Citus), keep reading.

Citus is an open source extension to Postgres that enables horizontal scaling of your Postgres database. Citus distributes your Postgres tables, writes, and SQL queries across multiple nodes—parallelizing your workload and enabling you to use the memory, compute, and disk of a multi-node cluster. And Citus is available on Azure: Hyperscale (Citus) is a deployment option in Azure Database for PostgreSQL.

What’s really exciting to me is that we’ve made it easier and cheaper than ever to try and use Hyperscale (Citus). With Basic tier, you can now use Hyperscale (Citus) on a single node, parallelizing your operations and adopting a distributed database model from the very beginning. And you can now try Citus open source with a single docker run command—boom!

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Claire Giordano

When to use Hyperscale (Citus) to scale out Postgres

Written byBy Claire Giordano | December 5, 2020Dec 5, 2020

If you've built your application on Postgres, you already know why so many people love Postgres.

And if you're new to Postgres, the list of reasons people love Postgres is loooong—and includes things like: 3 decades of database reliability baked in; rich datatypes; support for custom types; myriad index types from B-tree to GIN to BRIN to GiST; support for JSON and JSONB from early days; constraints; foreign data wrappers; rollups; the geospatial capabilities of the PostGIS extension, and all the innovations that come from the many Postgres extensions.

But what to do if your Postgres database gets very large?

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One of the unique things about Postgres is that it is highly programmable via PL/pgSQL and extensions. Postgres is so programmable that I often think of Postgres as a computing platform rather than just a database (or a distributed computing platform—with Citus). As a computing platform, I always felt that Postgres should be able to take actions in an automated way. That is why I created the open source pg_cron extension back in 2016 to run periodic jobs in Postgres—and why I continue to maintain pg_cron now that I work on the Postgres team at Microsoft.

Using pg_cron, you can schedule Postgres queries to run periodically, according to the familiar cron syntax. Some typical examples:

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Ozgun Erdogan

Microsoft Azure Welcomes PostgreSQL Committers

Written byBy Ozgun Erdogan | March 3, 2020Mar 3, 2020

Interview with the Postgres committers who have joined the Postgres team at Microsoft by Sudhakar Sannakkayala (Partner Director, Azure Data) and Ozgun Erdogan (Principal, Azure Data)—cross-posted from the Azure Database for PostgreSQL Blog.

In recent years, the data landscape has seen strong innovation as a result of the onset of open source technologies. At the forefront, PostgreSQL has shown that it’s the open source database built for every type of developer. By staying true to its principles of being standards-compliant, highly programmable, and extensible, PostgreSQL has solidified its position as the “most loved database” of developers across the board—ranging from scenarios for OLTP, analytics, and business intelligence to processing various formats of geometric data using the PostGIS extension.

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How do you know if the next update to your software is ready for hundreds of millions of customers? It starts with data. And when it comes to Windows, we’re talking lots of data. The Windows team measures the quality of new software builds by scrutinizing 20,000 diagnostic metrics based on data flowing in from 1.2 billion Windows devices. At the same time, the team evaluates feedback from Microsoft engineers who are using pre-release versions of Windows updates.

At Microsoft, the Windows diagnostic metrics are displayed on a real-time analytics dashboard called “Release Quality View” (RQV), which helps the internal “ship-room” team assess the quality of the customer experience before each new Windows update is released. Given the importance of Windows for Microsoft’s customers, the RQV analytics dashboard is a critical tool for Windows engineers, program managers, and execs.

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