[invaliduser]

This is probably great to use, but it also highlights in comparison the beautiful simplicity of SQL. Doing something simple is hard, and SQL is so simple that I think most people find little value to abstractions built on it.

[kiliancs]

There are different valid ways to produce these queries, some of which might be less composable but simpler: https://hexdocs.pm/ecto/Ecto.Query.html