Support for left outer join in Rails 5Suppose in a blog application there are authors and posts. A post belongs to an author, while author has many posts. The app needs to show a list of all the authors along with a number of posts that they have written. For this, we need to join author and posts table with "left outer join". More about "left outer join" here, here and here . In Rails 4.x, we need to write the SQL for left outer join
