https://github.com/delonnewman/activerecord-setops

Union, Intersect, and Difference set operations for ActiveRecord (also, SQL's UnionAll).

activerecord activerecord-extension activerecord-queries arel query relational-algebra relational-database relational-databases ruby ruby-gem ruby-on-rails set set-operations set-theory sets sql sql-except sql-intersect sql-union sql-unionall

Last synced: 13 Apr 2025