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BL#8: MongoDB vs PostgreSQL JSON Performance, Storage and Search

2026-03-01


Hi!

It took me more than anticipated, but it has finally arrived - a comprehensive JSON Documents comparison in Mongo, the Documenter, vs Postgres, the Elephant.

I had no idea what to expect from MongoDB, but with very high expectations from Postgres, as I always do. In the end, even I was surprised how well it handles all kinds of JSON queries and use cases - it truly is a universal database!

Besides performance tests, results and related details, there are lots of queries, indexes and some storage details. It is all available in the post: https://binaryigor.com/json-documents-mongodb-vs-postgresql.html

Hope you find it both interesting & useful - see you in the next entry!

Igor


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