Ecto 3.0 Query Enhancements Overview

In this blog post, José Valim delves into various query improvements introduced in Ecto 3.0. Key new features include additions like UNION, EXCEPT, and INTERSECT, which allow combining results from multiple queries. Valim explains the proper usage of these additions and the optimizations they bring for specific use cases. He further discusses the incorporation of WINDOW clauses and the OVER operator, which enable advanced SQL window functions within Ecto queries. Additionally, other enhancements such as COALESCE, FILTER expressions, and more precise NULL handling in ORDER BY clauses are highlighted. These improvements aim to make querying with Ecto more powerful and efficient.