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AWS Aurora PostgreSQL: Key Points to Know

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Amazon Aurora PostgreSQL (often referred to as Aurora PostgreSQL or Aurora PG) is a separate, fully managed relational database service in AWS. It is part of the Amazon Aurora family, which offers high-performance, scalable database solutions compatible with this open-source engine and MySQL.

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Aurora PostgreSQL Key Details

  1. Separate Service: While Amazon Aurora PostgreSQL is part of the broader Amazon Aurora offering, it is distinct from other managed database services such as Amazon RDS for this engine and Amazon RDS for MySQL.
  2. Compatibility: This engine is fully compatible with the upstream open-source database. Applications built on that platform can typically run on Aurora with little to no modification.
  3. Managed by AWS: Like RDS, the service is fully managed by AWS, handling backups, patching, scaling, and high availability for you.
  4. Performance and Scalability: Aurora is designed to offer superior performance compared to standard deployments of this database engine:
    • Up to 5 times faster than traditional deployments.
    • Scalable storage up to 128 TB without manual intervention.
    • Auto-scaling read replicas and fast failover for high availability.
  5. Cost: This Aurora variant is more cost-effective than many commercial databases while still providing enterprise-grade performance and availability.

How It Differs from Amazon RDS for PostgreSQL:

  • Architecture: Aurora uses a shared storage architecture that decouples compute and storage, which leads to higher performance and easier scalability than typical single-instance setups.
  • Performance: Aurora’s performance and latency are generally better than Amazon RDS for PostgreSQL, thanks to its distributed, log-structured storage layer and optimizations for cloud workloads.
  • Storage Auto-scaling: Aurora automatically scales storage as your database grows, without downtime or manual intervention.

AWS Management Console:

This PostgreSQL-compatible Aurora option appears when you create a database in the Amazon RDS Console. You choose Amazon Aurora as the engine type and then select this engine as the specific database option.

Summary:

Amazon Aurora PostgreSQL is a separate and optimized service within the Amazon Aurora family. It delivers compatibility with the upstream database along with improved performance and scalability compared to standard deployments.

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