{"slug": "show-hn-sqlflow-durable-workflows-backed-by-postgresql-or-sql-server", "title": "Show HN: SqlFlow – Durable Workflows Backed by PostgreSQL or SQL Server", "summary": "Bytefish released SqlFlow, an open-source durable workflow engine backed by PostgreSQL or SQL Server with SDKs for .NET, Java, Python, and Go. SqlFlow supports retries, checkpoints, rate limiting, scheduling, and suspension while waiting for events, and uses native database features such as PostgreSQL LISTEN/NOTIFY, SQL Server Service Broker, or NATS instead of polling the database, keeping durable state in the SQL database. Each SDK ships with a complete example modeling an AI agent workflow.", "body_md": "Hey HN!\n\nI have built SqlFlow, which is an open-source durable workflow engine backed by PostgreSQL or SQL Server, with SDKs for .NET, Java, Python, and Go. Workflows support retries, checkpoints, rate limitng, scheduling, and suspension while waiting for events.\n\nIt took a large deal of inspiration from Absurd, but it expands on the core concepts.\n\nInstead of polling the database, it supports native database features such as PostgreSQL LISTEN / NOTIFY, SQL Server Service Broke, and you could also use NATS. The durable state always remains in your SQL database.\n\nEach SDK comes with a complete example, that models an AI Agent Workflow:\n\n- [https://github.com/bytefish/SqlFlow/tree/main/sdks](https://github.com/bytefish/SqlFlow/tree/main/sdks)\n\nI would love to hear your feedback.\n\nComments URL: [https://news.ycombinator.com/item?id=50031583](https://news.ycombinator.com/item?id=50031583)\n\nPoints: 1\n\n# Comments: 0", "url": "https://wpnews.pro/news/show-hn-sqlflow-durable-workflows-backed-by-postgresql-or-sql-server", "canonical_source": "https://github.com/bytefish/SqlFlow", "published_at": "2026-10-10 10:47:33+00:00", "updated_at": "2026-10-10 11:13:48.225295+00:00", "lang": "en", "topics": ["ai-agents", "developer-tools", "ai-infrastructure"], "entities": ["SqlFlow", "Bytefish", "PostgreSQL", "SQL Server", ".NET", "Java", "Python", "Go"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/show-hn-sqlflow-durable-workflows-backed-by-postgresql-or-sql-server", "markdown": "https://wpnews.pro/news/show-hn-sqlflow-durable-workflows-backed-by-postgresql-or-sql-server.md", "text": "https://wpnews.pro/news/show-hn-sqlflow-durable-workflows-backed-by-postgresql-or-sql-server.txt", "jsonld": "https://wpnews.pro/news/show-hn-sqlflow-durable-workflows-backed-by-postgresql-or-sql-server.jsonld"}}