Prompt

Should I use PostgreSQL or MariaDB for a new product?

Technology / Databases1 observationLast seen Oct 7, 2026

Latest observation

Oct 7, 2026OpenAI APIWeb search: off

For a new product, I’d usually recommend PostgreSQL unless you have a specific reason to choose MariaDB.

Why PostgreSQL is often the better default

  • Stronger feature set: great support for complex queries, JSON, window functions, CTEs, partial indexes, etc.
  • Better standards compliance: tends to behave more predictably and is less “surprising.”
  • Excellent reliability and correctness: very strong reputation for data integrity.
  • Flexible enough for many use cases: works well for traditional relational apps, analytics-ish workloads, and semi-structured data.
  • Large ecosystem and mindshare: lots of tooling, cloud support, and community adoption.

When MariaDB might be a good choice

  • You’re already using MySQL/MariaDB and want compatibility or a low-friction migration.
  • Your team has strong MySQL/MariaDB experience and limited PostgreSQL expertise.
  • The app is fairly simple CRUD and you want to optimize for familiarity over advanced capabilities.
  • You depend on specific MariaDB/MySQL behavior or tooling.

Practical rule of thumb

  • Choose PostgreSQL for most new applications.
  • Choose MariaDB if you need MySQL compatibility, your hosting/tooling already centers around it, or your team knows it much better.

If you want, I can also give you a decision matrix based on your app type (SaaS, ecommerce, analytics, high-write, etc.).

Observation history

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