The Evolution of Pluggable Tree Strategies: From Nested Sets to Recursive CTEs and Beyond
Hierarchical data is everywhere in business applications—from organizational charts and product catalogs to tasks, nested comments, and ledger accounts. Yet, representing tree structures in a relational SQL database is a classic engineering trade-off between write performance, read complexity, and storage overhead.
In this article, we'll walk through the evolution of tree strategies in Framework M: how we moved from a Frappe-inspired Nested Set model to a pluggable Strategy Pattern supporting recursive CTEs, and how this architecture paves the way for specialized document and graph repositories.
