PostgreSQL Query Rewriting Techniques The previous articles in this series covered performance problems you fix by adding indexes, restructuring joins, or tuning memory. This one is about the queries where the plan is "fine" — every node is doing something reasonable — but the query itself is asking the wrong question, producing unnecessarily large intermediate results or forcing the planner dow
This section is the map for the rest of the book. The five stages introduced in the 1.1 chapter overview (parse, analyze/rewrite, plan, portal, execute) are traced here through the actual code: which functions implement each stage, and in what order they get called. The mechanics of each of the five stages are unpacked in later chapters. Here, only the skeleton matters: how a backend starts up, ho
PostgreSQL Internals · Chapter 1 Query Processing Suppose a client sends SELECT * FROM users WHERE id = 1. The path that single line travels before coming back as a result row is longer than you might expect. Inside the PostgreSQL backend, that SQL goes through a five-stage pipeline. Backend entry and dispatch. The backend receives the message from the client and decides which processing path it s
I've been shipping software internationally for 5 years, and I've seen localization bugs tank launches in ways that make deployment failures look quaint. Currency displays in the wrong locale. Dates that make Japanese users think the app was built in 1970. Phone numbers that break form validation in Brazil. Last week, I decided to actually test TestSprite on a real project instead of adding it to
SQL is widely known for data querying and manipulation but systems do grow; data becomes larger; processes become repetitive and operations become sensitive. SQL has some features which enables it to be considered a fully fledged programming language. Some of the features which I discuss in this article are procedures, functions and transactions. Each of these concepts serve distinct purposes. Sto
description: "Critical issues blocking TestSprite adoption in Indonesia, Malaysia, Philippines. Production fixes included." tags: testsprite, testing, devops, indonesia, localization cover_image: "https://dev-to-uploads.s3.amazonaws.com/uploads/articles/testsprite_mcp_review.png" canonical_url: "" published: false Code Review: Why TestSprite's MCP Failed in Southeast Asia (And How to Fix It) TL;DR
TestSprite adalah platform testing yang fokus pada quality assurance untuk aplikasi modern. Setelah menggunakan TestSprite dalam satu proyek production-grade di berbagai device dan region, saya ingin share pengalaman mendalam tentang bagaimana tool ini menangani localization dan timezone handling — aspek yang sering diabaikan tapi krusial untuk aplikasi global. TestSprite memungkinkan developer un
description: "Real-world TestSprite evaluation testing Indonesian e-commerce with IDR currency, timezone handling, and 3 locales. Grade A review with technical findings." https://images.unsplash.com/photo-1516321318423-f06f70a504f0?w=1200&h=600&fit=crop" TL;DR: TestSprite is 80% faster than manual visual regression testing. Grade A for multi-locale apps. Grade B+ for logic testing. Real findings: