PostgreSQL Fundamentals: Write-Ahead Logging Deep Dive (Part 5)
Deep dive into PostgreSQL's Write-Ahead Logging: how it works, what's inside WAL records, and how it enables both durability and crash recovery.
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PostgreSQL Fundamentals: Performance Patterns and Trade-offs (Part 4)
Learn the performance trade-offs database systems face: write amplification, I/O batching, and why PostgreSQL makes the design choices it does.
PostgreSQL Fundamentals: Transactions and ACID (Part 3)
Learn what database transactions are, why ACID properties matter, and how PostgreSQL ensures your data stays consistent even when things go wrong.
PostgreSQL Fundamentals: How Databases Store Data (Part 2)
Learn how PostgreSQL organizes data on disk using pages, tables, and indexes. Understand the building blocks of database storage.
PostgreSQL Fundamentals: Memory vs Disk Performance (Part 1)
Understand the fundamental difference between memory and disk performance, and why this matters for database systems like PostgreSQL.
Ruby 3.4 Adds Array#fetch_values for Safe Multi-Index Access
Ruby 3.4 introduces Array#fetch_values to safely retrieve multiple array elements with default value support, bringing consistency with Hash#fetch_values.
Rails pluralize Just Got 4x Faster
Rails optimizes pluralize with regex caching and structural changes, delivering up to 4x performance improvement for uncountable words
DHH's Rails World 2025 Keynote: We're All CRUD Monkeys, and That's OK
DHH admits we're all CRUD monkeys, kills system tests, shows off his Linux distro, and reminds us that deployment used to take 5 seconds with FTP.
PostgreSQL JSONB: Indexing Strategies and Performance Optimization
Master JSONB indexing strategies, query optimization, and scaling considerations for high-performance PostgreSQL applications
Rails (might be) Getting a Structured Event Reporting System (and It's Pretty Cool)
An upcoming Rails feature will let you emit structured events with context and metadata, solving the messiness of traditional logging while keeping things flexible for different use cases