Postgres Partitioning for Large Rails Tables | Talk.rb

This source discusses the challenges of managing a large PostgreSQL table, specifically an 'audits' table that grew to billions of rows, causing increased costs, operational risks, and degraded query performance. To address this, the authors explain how they implemented declarative partitioning in PostgreSQL using Rails, which involves splitting the large table into smaller, manageable pieces based on a partition key. The text outlines the migration strategy, which involved an intermediate step using table inheritance to handle out-of-range data and avoid downtime, before transitioning to the final declarative partitioning structure. Finally, it details the benefits of declarative partitioning, such as faster queries through partition pruning and easier data cleanup, and emphasizes the importance of careful planning and automation for successful implementation and maintenance.

Links:
www.aha.io/engineering/articles/partitioning-a-lar…

Official Resources:
www.ruby-lang.org/
ruby-doc.org/
rubyonrails.org/