Dynamic Ecto Query Building Using Composite Library

Artur Plysiuk discusses an alternative to the typical method of building dynamic Ecto queries presented in the Ecto documentation. He introduces the Composite library, which allows a more organized and possibly more efficient way to compose Ecto queries using Elixir. The article compares traditional ways of composing queries with dynamic application of functions, and exemplifies how the Composite library can help streamline the process by placing parameters at the top level, resembling a router, and establishing clear dependencies. This makes the code shorter, easier to follow, and potentially optimizes query performance by joining associations only when necessary. Artur highlights that customizing a query's composition can be done without needing the `Ecto.Query.dynamic/2` macro, and that Composite handles parameter presence and dependencies in an elegant way.