Error Handling: Postgres Logging & Rate-Limited Alerts

This n8n workflow provides robust error handling by logging all errors to a PostgreSQL database while implementing rate-limiting for notifications, ensuring no more than one alert (e.g., email or push) every 5 minutes. It can serve as a primary error handler—adding DB logs without further action—or as a sub-workflow integrated into existing setups. An optional error cleanup feature resets execution state, ideal for development. Setup requires creating a specific PostgreSQL table (DDL provided)