Challenges in Migrating from Firebird to PostgreSQL

This guide addresses the complexities involved in migrating from Firebird to PostgreSQL, specifically targeting technical managers and CTOs overseeing database migration projects. It outlines the common misconceptions that lead organizations to believe that switching database management systems (DBMS) will resolve existing issues, often attributing problems to the current DBMS rather than management or operational factors. The document explains that migration can introduce significant risks, including increased costs and extended timelines, and emphasizes the importance of understanding the unique challenges associated with PostgreSQL. Key topics include differences in Multi-Version Concurrency Control (MVCC) implementation, the impact of PostgreSQL's approach on database performance, and the potential for increased operational difficulties during the transition. The guide serves as a cautionary resource, encouraging decision-makers to critically assess their migration strategies and the specific needs of their database systems before proceeding.