Introduction: Why Vectorized Query Execution Engines Are Dominating Modern Databases When I started working with analytical databases, most engines I touched were still built around classic iterator-based execution: the familiar Volcano-style model that pulls one tuple at a time through… Read More »Designing a Vectorized Query Execution Engine: Modern Tradeoffs and Patterns
Introduction: Why Vectorized Query Execution Engines Matter Now In modern analytics systems, the classic iterator model (“one row at a time”) simply can’t keep up with the volume and complexity of data I see in real-world warehouses. Every row incurs… Read More »How to Design a Vectorized Query Execution Engine Step by Step
Introduction: Why Vectorized Query Execution Still Goes Wrong Vectorized query execution looks straightforward on paper: process batches of values at a time, keep the CPU hot, and watch performance climb. Yet in my experience working on execution engines, this is… Read More »Top 5 Vectorized Query Execution Mistakes Engine Designers Still Make