{"slug":"postgresql-vs-amazon-aurora)","title":"PostgreSQL vs Amazon Aurora","url":"https://www.aversusb.net/compare/postgresql-vs-amazon-aurora)","faqCount":5,"faqs":[{"question":"Can I migrate from PostgreSQL to Aurora without rewriting code?","answer":"Yes. Aurora is PostgreSQL-compatible, so existing queries and applications work with minimal changes. Use AWS Database Migration Service (DMS) for automated migration. However, some advanced PostgreSQL extensions may not be available in Aurora, requiring code modifications. The reverse migration (Aurora to PostgreSQL) requires manual export/import."},{"question":"What is the true total cost of ownership for PostgreSQL vs Aurora?","answer":"PostgreSQL has zero licensing but requires infrastructure costs (compute/storage $200-$2,000/month), DevOps staff ($80K-$150K annually), and backup systems. Aurora costs $525-$10,700 annually for equivalent performance with no DevOps overhead. Break-even: Aurora becomes cheaper when DevOps labor exceeds ~$40K/year or you value operational simplicity over raw cost."},{"question":"Does Aurora guarantee better performance than self-managed PostgreSQL?","answer":"No. Aurora and PostgreSQL offer similar query performance on equivalent hardware. Aurora's advantage is operational (automatic scaling, failover), not raw speed. A well-tuned PostgreSQL instance on premium hardware matches Aurora's performance; Aurora wins on *consistency* (managed optimization) and *availability* (automatic recovery)."},{"question":"Can I run PostgreSQL in AWS instead of using Aurora?","answer":"Yes. You can run PostgreSQL on EC2 instances, RDS for PostgreSQL (AWS-managed but different from Aurora), or Lightsail. RDS for PostgreSQL is cheaper than Aurora but lacks Aurora's read-scaling and cross-region features. Aurora is AWS's premium PostgreSQL offering with more automation and performance features."},{"question":"What happens if I need to leave AWS with Aurora?","answer":"You can export Aurora data using native PostgreSQL tools (pg_dump) or AWS Database Migration Service, then import into any PostgreSQL instance. However, this requires downtime or a separate migration infrastructure. AWS-specific features (Aurora-specific extensions, native read scaling) won't transfer, requiring application changes."}],"faqPageSchema":{"@context":"https://schema.org","@type":"FAQPage","@id":"https://www.aversusb.net/compare/postgresql-vs-amazon-aurora)#faq","url":"https://www.aversusb.net/compare/postgresql-vs-amazon-aurora)","inLanguage":"en-US","name":"PostgreSQL vs Amazon Aurora — FAQ","description":"Frequently asked questions about PostgreSQL vs Amazon Aurora","dateModified":"2026-07-09T07:48:10.673Z","author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"},"publisher":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"},"isPartOf":{"@type":"Article","@id":"https://www.aversusb.net/compare/postgresql-vs-amazon-aurora)#article"},"license":"https://creativecommons.org/licenses/by/4.0/","speakable":{"@type":"SpeakableSpecification","cssSelector":["#faq",".faq-item"]},"mainEntity":[{"@type":"Question","name":"Can I migrate from PostgreSQL to Aurora without rewriting code?","acceptedAnswer":{"@type":"Answer","text":"Yes. Aurora is PostgreSQL-compatible, so existing queries and applications work with minimal changes. Use AWS Database Migration Service (DMS) for automated migration. However, some advanced PostgreSQL extensions may not be available in Aurora, requiring code modifications. The reverse migration (Aurora to PostgreSQL) requires manual export/import.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/postgresql-vs-amazon-aurora)"}},{"@type":"Question","name":"What is the true total cost of ownership for PostgreSQL vs Aurora?","acceptedAnswer":{"@type":"Answer","text":"PostgreSQL has zero licensing but requires infrastructure costs (compute/storage $200-$2,000/month), DevOps staff ($80K-$150K annually), and backup systems. Aurora costs $525-$10,700 annually for equivalent performance with no DevOps overhead. Break-even: Aurora becomes cheaper when DevOps labor exceeds ~$40K/year or you value operational simplicity over raw cost.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/postgresql-vs-amazon-aurora)"}},{"@type":"Question","name":"Does Aurora guarantee better performance than self-managed PostgreSQL?","acceptedAnswer":{"@type":"Answer","text":"No. Aurora and PostgreSQL offer similar query performance on equivalent hardware. Aurora's advantage is operational (automatic scaling, failover), not raw speed. A well-tuned PostgreSQL instance on premium hardware matches Aurora's performance; Aurora wins on *consistency* (managed optimization) and *availability* (automatic recovery).","inLanguage":"en-US","url":"https://www.aversusb.net/compare/postgresql-vs-amazon-aurora)"}},{"@type":"Question","name":"Can I run PostgreSQL in AWS instead of using Aurora?","acceptedAnswer":{"@type":"Answer","text":"Yes. You can run PostgreSQL on EC2 instances, RDS for PostgreSQL (AWS-managed but different from Aurora), or Lightsail. RDS for PostgreSQL is cheaper than Aurora but lacks Aurora's read-scaling and cross-region features. Aurora is AWS's premium PostgreSQL offering with more automation and performance features.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/postgresql-vs-amazon-aurora)"}},{"@type":"Question","name":"What happens if I need to leave AWS with Aurora?","acceptedAnswer":{"@type":"Answer","text":"You can export Aurora data using native PostgreSQL tools (pg_dump) or AWS Database Migration Service, then import into any PostgreSQL instance. However, this requires downtime or a separate migration infrastructure. AWS-specific features (Aurora-specific extensions, native read scaling) won't transfer, requiring application changes.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/postgresql-vs-amazon-aurora)"}}]}}