https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Tue, 16 Jun 2026 00:00:00 GMT https://www.youngju.dev/blog/database/2026-06-16-postgresql-version-upgrade-strategies.en https://www.youngju.dev/blog/database/2026-06-16-postgresql-version-upgrade-strategies.en A practical comparison of three ways to perform a PostgreSQL major version upgrade: dump/restore, pg_upgrade, and logical replication. We cover downtime trade-offs, the pg_upgrade --link procedure and its caveats, near-zero-downtime upgrades via logical replication, verification and rollback, and managed upgrades on RDS and Aurora. Tue, 16 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) postgresqldatabaseupgradepg-upgradelogical-replicationrdsaurora https://www.youngju.dev/blog/database/2026-06-16-postgresql-version-upgrade-strategies.ja https://www.youngju.dev/blog/database/2026-06-16-postgresql-version-upgrade-strategies.ja PostgreSQL のメジャーバージョンアップグレードを、dump/restore、pg_upgrade、論理レプリケーションの3つの方式で比較します。ダウンタイムのトレードオフ、pg_upgrade --link の手順と注意点、論理レプリケーションによる無停止アップグレードの手順、検証とロールバック、RDS/Aurora のマネージドアップグレードまで、実務の観点で整理します。 Tue, 16 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) postgresqldatabaseupgradepg-upgradelogical-replicationrdsaurora https://www.youngju.dev/blog/database/2026-06-16-postgresql-version-upgrade-strategies https://www.youngju.dev/blog/database/2026-06-16-postgresql-version-upgrade-strategies PostgreSQL 메이저 버전 업그레이드를 dump/restore, pg_upgrade, 논리 복제 세 가지 방식으로 비교합니다. 다운타임 트레이드오프, pg_upgrade --link 절차와 주의사항, 논리 복제 기반 무중단 업그레이드 단계, 검증과 롤백, RDS/Aurora 관리형 업그레이드까지 실무 관점에서 정리합니다. Tue, 16 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) postgresqldatabaseupgradepg-upgradelogical-replicationrdsaurora