Having managed both at scale, the answer to 'PostgreSQL or MongoDB for JSON?' is not as simple as 'MongoDB is for documents.' Deep internals on both sides will affect your performance, storage footprint, and operational burden in ways a quick benchmark won't reveal.
Two major milestones for iqtoolkit-analyzer: v0.2.8 brings database-direct EXPLAIN analysis with contextual AI recommendations, while v0.3.0a6 delivers Google Gemini integration, MongoDB deep analysis, and multi-platform distribution (apt, dnf, zypper, Homebrew, Chocolatey).
Deep dive into PostgreSQL's TOAST (The Oversized-Attribute Storage Technique) mechanism and how it works around the fundamental 8KB block size limitation. Learn when TOAST activates, how it stores large values, and the performance implications for your database design.
PostgreSQL Internals Mastery Volume I is now availableโa comprehensive foundation covering PostgreSQL architecture, memory management, storage, transactions, and durability. Learn how PostgreSQL really works at a systems level.
iqtoolkit-analyzer v0.2.6 is now live, bringing more stability and better UX for AI-powered database analysis across PostgreSQL and MongoDB. This release continues the path toward a smarter co-pilot for DB performance tuning and query optimization.