Supabase launched support for Postgres Read Replicas on 2023-12-15, offering database load distribution, data proximity, redundancy, and complex query execution without impacting primary databases.
Read replicas can only perform read operations, with asynchronous replication to minimize transaction blocking, however, they inherit the compute size of their primary.
The service simplifies horizontal database scaling across multiple databases and reduces primary database load, including the ability to designate replicas for analytics or launch them in different regions.
Supabase has automated most of the complexity associated with using read replicas, including management through the infrastructure settings page and visualizing SQL queries.
Read replicas are priced based on compute, storage, and WAL transfer, with the service planning to release automatic failover for all paid plans and database-level load balancing in the future.

Supabase is an open source platform providing developers with tools to quickly build and scale applications. It serves as an alternative to Firebase, offering a range of features including a full Postgres database, authentication services, instant APIs, Edge Functions, real-time data subscriptions, storage solutions, and vector embeddings for machine learning models. Supabase emphasizes developer experience with easy setup, maintenance-free scaling, and immediate API generation from database schemas. It supports various user authentication methods, allows for custom security policies, and fosters a community-oriented ecosystem. It is tailored for both rapid prototyping and large-scale production deployments.

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Supabase provides scalable open source backend services with Postgres database.

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Supabase Introduces Postgres Read Replicas

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