This blog post compiles insights and tips from discussions on platforms like Twitter, HackerNews, and Reddit about effectively using PostgreSQL for app development. It emphasizes the importance of selecting the right data types for scalability, using UUIDs as primary keys to avoid collision issues, and leveraging PostgreSQL’s JSON support for NoSQL use cases. The post advises on making most columns non-nullable to ensure data consistency, utilizing default timestamps for audit purposes, and organizing data with multiple schemas. It highlights the extensibility of PostgreSQL through community-driven extensions like PostGIS and pg_cron, and stresses the need for judicious indexing to enhance query performance. The author also discusses best practices for managing database users and sessions, constructing connection strings, and using views for data transformation. Additionally, the importance of version-controlling the schema and employing transactional DDL for complex operations is underscored, all aimed at fostering a deeper understanding of PostgreSQL in production environments.