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) Sat, 16 May 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-05-16-database-migration-tools-2026-atlas-flyway-liquibase-bytebase-pgroll-squawk-gh-ost-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-database-migration-tools-2026-atlas-flyway-liquibase-bytebase-pgroll-squawk-gh-ost-deep-dive.en The 2026 landscape of database schema migration tools. Atlas declarative model, the Flyway 11 vs Liquibase 4.30 camps, Sqitch dependency graphs, Bytebase 3 DevOps workflow, pgroll zero-downtime expand-contract, Squawk linting, gh-ost / pt-osc / Reshape online schema change, and the per-language defaults dbmate / golang-migrate / Diesel / Alembic / Prisma Migrate / Drizzle Kit — in one place. Forward-only vs reversible, online vs offline, the expand-contract pattern, common foot-guns like column rename / NOT NULL / type change. Who should pick what, with a decision tree and real cases from Toss, Kakao, and Mercari. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) databasemigrationschema-managementatlasflywayliquibasesqitchbytebasepgrollsquawkgh-ostreshapeprisma-migratedrizzle-kitalembic2026deep-diveenglish https://www.youngju.dev/blog/culture/2026-05-16-database-migration-tools-2026-atlas-flyway-liquibase-bytebase-pgroll-squawk-gh-ost-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-database-migration-tools-2026-atlas-flyway-liquibase-bytebase-pgroll-squawk-gh-ost-deep-dive.ja 2026 年のデータベーススキーママイグレーションツールの全体像。Atlas の宣言型モデル、Flyway 11 と Liquibase 4.30 の陣営、Sqitch の依存グラフ、Bytebase 3 の DevOps ワークフロー、pgroll の無停止 expand-contract、Squawk による Lint、gh-ost / pt-osc / Reshape のオンラインスキーマ変更、そして言語別の定番である dbmate / golang-migrate / Diesel / Alembic / Prisma Migrate / Drizzle Kit を一つの記事に。forward-only と reversible、オンラインとオフライン、expand-contract パターン、カラム rename・NOT NULL・型変更といったよくある落とし穴まで。どのチームが何を選ぶべきかをディシジョンツリーで整理し、トス・カカオ・メルカリの実例も紹介する。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) databasemigrationschema-managementatlasflywayliquibasesqitchbytebasepgrollsquawkgh-ostreshapeprisma-migratedrizzle-kitalembic2026deep-dive日本語 https://www.youngju.dev/blog/culture/2026-05-16-database-migration-tools-2026-atlas-flyway-liquibase-bytebase-pgroll-squawk-gh-ost-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-database-migration-tools-2026-atlas-flyway-liquibase-bytebase-pgroll-squawk-gh-ost-deep-dive 2026년 DB 스키마 마이그레이션 도구 지형도. Atlas의 선언적 모델, Flyway 11과 Liquibase 4.30의 진영, Sqitch의 의존성 그래프, Bytebase 3의 DevOps 워크플로, pgroll의 무중단 expand-contract, Squawk 린터, gh-ost·pt-osc·Reshape의 온라인 스키마 변경, dbmate·golang-migrate·Diesel·Alembic·Prisma Migrate·Drizzle Kit의 언어별 선택지를 한 글로. forward-only vs reversible, online vs offline, expand-contract 패턴, column rename·NOT NULL·타입 변경 같은 흔한 발자국까지, 누가 무엇을 골라야 하는지 결정 트리와 토스·카카오·Mercari의 실제 사례. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) databasemigrationschema-managementatlasflywayliquibasesqitchbytebasepgrollsquawkgh-ostreshapeprisma-migratedrizzle-kitalembic2026deep-dive