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Deep technical content on agentic AI systems, LLM cost optimization, Commander Architecture, and production SaaS engineering — from 18+ years of building.
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PostgreSQL 9.6: Parallel Query Execution and Scale-Out Architecture
Analyzing the PostgreSQL 9.6 release, detailing its multi-core parallel query execution engine, parallel sequential scans, and index joins.
Apache Spark 1.4: Introducing DataFrames and Spark SQL for Distributed Datasets
Analyzing the release of Apache Spark 1.4 in mid-2015. We break down the new DataFrame API, the Catalyst optimizer, and Spark SQL query execution.
Database Normalization vs. Denormalization for Web-Scale Performance
Understanding the balance between database normalization (3NF) to prevent anomalies and denormalization to accelerate high-volume queries.
Designing High-Performance SQL Indexes: A Masterclass in Query Optimization
A deep dive into database internals, examining B-Tree layouts, page reads, and how to structure composite indexes to satisfy query execution plans.
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