Contributed a documentation enhancement to the elixir-ecto/ecto repository, focusing on advanced Ecto query techniques in Elixir. Developed a new section that clarifies how to reference parent queries within subqueries using named bindings and the parent_as/1 function, addressing a common source of confusion for developers working with complex database querying patterns. Included a practical Elixir code example to illustrate these concepts, aiming to improve onboarding and reduce support questions related to advanced Ecto usage. The work emphasized clear technical communication and thorough documentation practices, leveraging skills in Elixir, Markdown, and database querying to strengthen the project’s developer resources.