AWS Aurora PostgreSQL vs AWS RDS for PostgreSQL

AWS Aurora PostgreSQL
AWS RDS for PostgreSQL

Description

AWS Aurora PostgreSQL is a relational database service that is compatible with PostgreSQL and offers performance and availability improvements over standard PostgreSQL. AWS Aurora PostgreSQL is built on a distributed storage system that automatically scales up to 128 TiB and replicates data across multiple Availability Zones.

AWS RDS for PostgreSQL is a service that allows you to run a PostgreSQL database on the cloud with Amazon Web Services. It is a managed service that handles tasks such as installation, upgrades, backups, replication, and scaling of your PostgreSQL database. You can use AWS RDS for PostgreSQL with any application or tool that supports PostgreSQL. AWS RDS for PostgreSQL supports several versions of PostgreSQL, from 9.6 to 15, and offers features such as SSL/TLS encryption, Kerberos authentication, and Trusted Language Extensions.

Pricing

The pricing of AWS Aurora PostgreSQL depends on several factors, such as the instance type, storage type, storage size, backup retention, Multi-AZ deployment, and region. You can pay for AWS Aurora PostgreSQL using On-Demand or Reserved Instances. On-Demand Instances let you pay by the hour with no long-term commitments, while Reserved Instances offer significant discounts for one or three year terms.

The pricing of AWS RDS for PostgreSQL depends on several factors, such as the instance type, storage type, storage size, backup retention, Multi-AZ deployment, and region. You can pay for AWS RDS for PostgreSQL using On-Demand or Reserved Instances. On-Demand Instances let you pay by the hour with no long-term commitments, while Reserved Instances offer significant discounts for one or three year terms.

Pros

  • It delivers up to three times better performance than standard PostgreSQL with lower latency and higher throughput.
  • It supports up to 15 read replicas and cross-Region replicas for scaling read workloads and disaster recovery.
  • It provides high availability and durability with Multi-AZ deployments and automatic failover.
  • It supports features such as Global Database, Backtrack, Snapshot Export, Serverless, and Machine Learning Integration.
  • It is a fully managed service that handles tasks such as installation, upgrades, backups, replication, and scaling of your PostgreSQL database.
  • It supports several versions of PostgreSQL, from 9.6 to 15, and offers features such as SSL/TLS encryption, Kerberos authentication, and Trusted Language Extensions.
  • It provides high availability and durability with Multi-AZ deployments and read replicas.
  • It supports Storage Auto Scaling that automatically adjusts your storage capacity to meet your workload needs.

Cons

  • It is typically more expensive than standard PostgreSQL or AWS RDS for PostgreSQL for the same workloads.
  • It does not support all the extensions and features of standard PostgreSQL, such as logical replication, foreign data wrappers, and some data types.
  • It does not provide host access to the DB instances or allow you to run custom extensions or scripts on them.
  • It is more expensive than running self-managed PostgreSQL on EC2 instances.
  • It does not provide host access to the DB instances or allow you to run custom extensions or scripts on them.
  • It has some limitations and differences from standard PostgreSQL, such as unsupported parameters, functions, data types, and extensions.