Engineering Practice

PostgreSQL Database Design Principles

Model for clarity first, then optimize where evidence demands it.

Database design practices centered on data correctness, query performance, and schema longevity for evolving products.

Foundations

Core Principles

  • Normalize core entities and denormalize intentionally for high-value read paths.
  • Use constraints and indexes as executable data quality policy.
  • Design migrations to be safe, reversible, and deployment-aware.

Execution

Implementation Patterns

  • Composite indexes aligned to real filter/order workloads.
  • Lifecycle-aware fields for auditing, publishing, and soft retirement.
  • Controlled transaction boundaries for consistency under concurrency.

Production

Delivery Methodology

  • Performance budgets informed by query plans and production telemetry.
  • Schema governance that links changes to product capability outcomes.

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