Summarizer

PostgreSQL vs MySQL Popularity

Debate over metrics measuring database popularity, distinguishing installed base from new project adoption, noting momentum shift toward PostgreSQL despite MySQL's larger deployment footprint

← Back to Databases in 2025: A Year in Review

While MySQL maintains a massive global footprint through legacy platforms like WordPress, a distinct momentum shift has made PostgreSQL the undisputed favorite for new projects and venture-backed startups. This transition is largely driven by corporate instability surrounding MySQL and MariaDB, coupled with a surge in developer mindshare that increasingly treats PostgreSQL as the default industry standard. However, some critics argue this "dominance" is rooted more in investment hype and feature parity with decades-old Oracle systems than in true technical novelty. This shift has sparked concerns about an emerging monoculture in software development, where PostgreSQL is adopted as a blanket solution often at the expense of technical nuance.

11 comments tagged with this topic

View on HN · Topics
Supabase seems to be killing it. I read somewhere they are used by ~70% of YCombinator startups. I wonder how many of those eventually move to self-hosted.
View on HN · Topics
Oracle is mentioned at the start, where he proclaims the "dominance" of Postgres and then admits its newest features have been in Oracle for nearly a quarter of a century already. The dominance he's talking about is only about how many startups raise how many millions from investors, not anything technical. And then of course at the end he has a whole section about Larry Ellison, like always.
View on HN · Topics
There's nothing technically new that he's covering here though? It's all just startups adding stuff to Postgres that Oracle had for decades already.
View on HN · Topics
> "The Dominance of PostgreSQL Continues" It seems like the author is more focused on database features than user base. Every metric I can find online says that MySQL/MariaDB is more popular than PostgreSQL. PostgreSQL seems "better" (more features, better standards compliance) but MySQL/MariaDB works fine for many people. Am I living in a bubble?
View on HN · Topics
> Every metric I can find online says that MySQL/MariaDB is more popular than PostgreSQL What are those metrics? If you're talking about things like db-engines rankings, those are heavily skewed by non-production workloads. For example, MySQL still being the database for Wordpress will forever have a high number of installations and developers using and asking StackOverflow questions. But when a new company or established company is deciding which new database to use for their custom application, MySQL is seldom in the running like it was 8-10 years ago.
View on HN · Topics
Popularity can mean multiple things. Are we talking about how frequently a database is used or how frequently a database is chosen for new projects? MySQL will always be very popular because some very popular things use it like WordPress. It does feel like a lot of the momentum has shifted to PostgreSQL recently. You even see it in terms of what companies are choosing for compatibility. Google has a lot more MySQL work historically, but when they created a compatibility interface for Cloud Spanner, they went with PostgreSQL. ClickHouse went with PostgreSQL. More that I'm forgetting at the moment. It used to be that everyone tried for MySQL wire compatibility, but that doesn't feel like what's happening now. If MySQL is making you happy, great. But there has certainly been a shift toward PostgreSQL. MySQL will continue to be one of the most used databases just as PHP will remain one of the most used programming languages. There's a lot of stuff already built with those things. I think most metrics would say that PHP is more widely deployed than NodeJS, but I think it'd be hard to argue that PHP is what the developer community is excited about. Even search here on HN. In the past year, 4 MySQL stories with over 100 point compared to 28 PostgreSQL stories with over 100 points (and zero MariaDB stories above 100 points and 42 SQLite). What are we talking about here on HN? Not nearly as frequently MySQL - we're talking about SQLite and PostgreSQL. That's not to say that MySQL doesn't work great for you or that it doesn't have a large installed base, but it isn't where our mindshare is about the future.
View on HN · Topics
> ClickHouse went with PostgreSQL. What do you mean by this? AFAIK they added MySQL wire protocol compatibility long before they added Postgres. And meanwhile their cloud offering still doesn't support Postgres wire protocol today, but it does support MySQL wire protocol. > Even search here on HN. fwiw MySQL has been extremely unpopular on HN for a decade or more, even back when MySQL was a more common choice for startups. So there's a bit of a self-fulfilling prophecy where MySQL ecosystem folks mostly stopped submitting stories here because they never got enough upvotes to rank high enough to get eyeballs and discussion. That all said, I do agree with your overall thesis.
View on HN · Topics
I think author is basing his observations on where the money is flowing. PostgreSQL adjacent startups and businesses are seeing a lot of investment.
View on HN · Topics
> Am I living in a bubble? There are rumblings that the MySQL project is rudderless after Oracle fired the team working on the open-source project in September 2025. Oracle is putting all its energy in its closed-source MySQL Heatwave product. There is a new company that is looking to take over leadership of open-source MySQL but I can't talk about them yet. The MariaDB Corporation financial problems have also spooked companies and so more of them are looking to switch to Postgres.
View on HN · Topics
It's so weird how everyone nowadays is using Postgres. It's not like end users can see your database. It's disturbing how everyone is gravitating towards the same tools. This started happening since React and kept getting worse. Software development sucks nowadays. All technical decisions about which tools to use are made by people who don't have to use the tools. There is no nuance anymore. There's a blanket solution for every problem and there isn't much to choose from. Meanwhile, software is less reliable than it's ever been. It's like a bad dream. Everything is bad and getting worse.
View on HN · Topics
What's wrong this postgres?