Aparx Engineering Publications

Software Architecture & Insights

Technical breakdowns, system blueprints, mobile engineering patterns, and infrastructure benchmarks straight from our developers.

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Database Architecture 8 min read

PostgreSQL vs MySQL vs SQLite: Selecting the Optimal Database Engine for Production SaaS

An empirical architectural comparison between PostgreSQL, MySQL, and SQLite in 2026. Understand concurrency models, JSONB capabilities, WAL replication, and maintenance overhead.

Oct 02, 2026

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Database Architecture 7 min read

Database Indexing Deep Dive: B-Trees, Hash Indexes, and Composite Optimization

Demystifying database index internals. Learn how B-Tree leaf balancing works, avoid index scan degradation, and write lightning-fast multi-column queries.

Aug 19, 2026

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