Modern Frontend Complexity: essential or accidental?
2026-04-18
Once upon a time, at the dawn of the web, browsers and websites were simple ... Then slowly, step by step, more and more interactivity was added.
JSON Documents Performance, Storage and Search: MongoDB vs PostgreSQL
2026-03-01
Does MongoDB still have an edge as a document-oriented database for JSON in particular? Or is Postgres better? Or at least good-enough to stick with it, since it is a more universal database, offering a richer feature set and wider applicability?
Data Consistency: transactions, delays and long-running processes
2026-01-26
Data Consistency is simply a need to keep data consistent within a particular boundary and time. There are two main scopes ... Local data is immediately consistent - there are no delays, it appears either in its final form or not at all. In the global scope however, things look totally different.
MySQL vs PostgreSQL Performance: throughput & latency, reads & writes
2026-01-05
MySQL, the Dolphin, and Postgres, the Elephant, are one of the best and most widely used open-source databases. They are often compared across multiple angles: supported features, SQL dialect differences, architecture & internals, resource utilization and - performance. Today, we will jump into performance as deeply and broadly as possible - running many (17) test cases with all kinds of queries and workloads.
Authentication: who are you? Proofs are passwords, codes and keys
2025-12-14
In many systems, various actions can only be performed as some kind of Identity. We must authenticate ourselves by proving who we are. Authentication fundamentally is just an answer to this question: who are you and can you prove it is true?