{"repo":"realkarych/seqwall","free":true,"listed":false,"github":"https://github.com/realkarych/seqwall","clone":"git clone https://github.com/realkarych/seqwall.git","description":"🧪 Testing tool for PostgreSQL migrations — schema-snapshots based, framework‑agnostic.","language":"Go","stars":32,"topics":["database","golang","migrations","postgresql","sql","ddl","integration-testing","migration-testing","migration-tool","alembic"],"license":"MIT","category":"databases-storage","readme_excerpt":"Seqwall is a tool for PostgreSQL migrations testing. Ensure that every migration is reversible, idempotent, compatible with others in sequence, structurally sound and verifiable.         📦 Installation Docker images Package: . Homebrew (macOS & Linux) Debian / Ubuntu (APT) Other distros / Windows Download the pre‑built archive from the Releases page, unpack, add the binary to your PATH . On Windows, you may need Unblock-File .\\seqwall.exe before first run. Go install (Go ≥ 1.17) ✅ Once installed, verify it works 🧬 Methodology & Core Principles Migrations are contracts Each migration must be reversible and must not break the schema if applied, reverted, and reapplied. Snapshots reveal the truth After each migration, Seqwall captures the schema using information schema views , adhering to the ISO/IEC 9075-11 SQL standard . This includes tables , columns , constraints , indexes , views , triggers , functions , enums , sequences , and foreign keys . The snapshots are then compared using structured diffs, allowing detection of even subtle schema differences or mismatches. Staircase testing guarantees schema consistency We use a 3-phase strategy: 1. actualize — applying all migrations and captures etalon schema snapshot for each migration. 2. down → up → down — starting from the latest migration, step backwards: - downgrade one migration, - upgrade it again, - then downgrade once more (down step). - At each step, the schema is compared with previously captured","default_branch":null,"files":null,"tree":[],"storefront":"/r/realkarych","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/realkarych/seqwall/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}