Can WordPress Use PostgreSQL?

WordPress is one of the most popular content management systems (CMS) in the world, powering millions of websites. It is known for its ease of use, flexibility, and extensive plugin ecosystem. By default, WordPress uses MySQL as its database management system. However, many users wonder if it is possible to use PostgreSQL instead.

What is PostgreSQL?

PostgreSQL is a powerful open-source relational database management system (RDBMS) that offers advanced features and scalability. It is known for its robustness, data integrity, and support for complex queries. PostgreSQL is widely used in enterprise applications and is an alternative to MySQL.

WordPress and MySQL

WordPress was originally built to use MySQL as its database backend. MySQL is a popular choice for web applications due to its performance, ease of use, and wide support. The majority of WordPress plugins and themes are developed with MySQL in mind, and the WordPress core is optimized for MySQL.

When you install WordPress, it automatically creates a MySQL database and stores all your website’s content, including posts, pages, comments, and settings, in this database. The WordPress core code and plugins interact with the database to retrieve and store data.

Using PostgreSQL with WordPress

While WordPress is primarily designed to work with MySQL, it is possible to use PostgreSQL as the database backend with the help of plugins. There are a few plugins available that allow you to switch from MySQL to PostgreSQL.

One such plugin is “HyperDB,” which provides support for multiple database servers, including PostgreSQL. It allows you to configure WordPress to use PostgreSQL as the database backend while still maintaining compatibility with existing plugins and themes.

However, it’s important to note that using PostgreSQL with WordPress may require some additional configuration and testing. Not all plugins and themes may be fully compatible with PostgreSQL, and you may encounter compatibility issues or limitations.

Considerations for Using PostgreSQL with WordPress

Before deciding to use PostgreSQL with WordPress, there are a few considerations to keep in mind:

  1. Plugin and Theme Compatibility: Not all plugins and themes may work seamlessly with PostgreSQL. Some plugins may have specific MySQL queries or features that are not compatible with PostgreSQL. It’s important to thoroughly test your website’s functionality after switching to PostgreSQL.
  2. Performance: MySQL is known for its performance and scalability. While PostgreSQL is also a high-performance database, it may not provide the same level of optimization for WordPress as MySQL does. Depending on your website’s traffic and requirements, you may need to fine-tune PostgreSQL for optimal performance.
  3. Community Support: The WordPress community primarily focuses on MySQL, and most resources, documentation, and support are geared towards MySQL. Finding specific PostgreSQL-related solutions or troubleshooting guidance may be more challenging.


While WordPress is designed to work with MySQL by default, it is possible to use PostgreSQL as the database backend with the help of plugins. However, it’s important to consider the compatibility of plugins and themes, performance implications, and community support before making the switch.

If you are considering using PostgreSQL with WordPress, it is recommended to thoroughly test and evaluate the compatibility and performance of your website before making the transition. Additionally, staying updated with the latest plugin and theme developments and seeking support from the WordPress community can help address any challenges that may arise.

Ibraheem Taofeeq Opeyemi

I am a hard-working and help individual who isn't afraid to face a challenge. I'm passionate about my work and I know how to get the job done. I would describe myself as an open, and honest person who doesn't believe in misleading other people, and tries to be fair in everything I do. I'm Blogger | Website Designer | Website Developer | Content Writer | SEO Expert | Graphics Designer | WordPress Expert

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