PostgreSQL vs MongoDB 2026
PostgreSQL - Relational - ACID - Strong types - JSON support - Vector pgvector MongoDB - Document - Flexible schema - Horizontal scale - JSON-native Picks - SaaS: Postgres - Real-time: depends - Analytics: Postgres - Massive scale: depends - Most flex: Mongo Hosted - Postgres: Supabase, Neon - Mongo: Atlas Picks - Vibe coding: Postgres Supabase - Enterprise: depends Next Step Vector DBshttps://vi…