Michael Avrukin writes about activerecord-materialized, a Ruby gem that provides materialized view functionality for Rails applications running on databases like MySQL or SQLite. By precomputing complex queries into cache tables and refreshing them in the background when dependent data changes, it offers fast read access through standard ActiveRecord methods without requiring native database support for materialized views.
* Employs incremental maintenance (IVM) by default to refresh only affected partitions of GROUP BY views.
* Features a self-healing mechanism that reconciles the view against its source to fix potential data drift.
* Demonstrates significant performance gains, with benchmark speedups up to 49,000x for specific queries.