ActiveRecordStreamer

Stream ActiveRecord results in a new database connection using an unbuffered query.

Great for huge queries with ordered results, where find_each is not an option.

ActiveRecordStreamer works through a single huge unbuffered query. For each 1000 models it preloads any includes and yields them back. It then loads another 1000 over and over until all rows has been read.

Add to your Gemfile and bundle:

gem 'active_record_streamer'

Use a normal query, pass it through ActiveRecordStreamer and loop over the results with each:

users = User.where(something: 'something').includes(group: :users)

ActiveRecordStreamer.new(query: users).each |user|
  puts "User: #{user.inspect}"
end

• Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet.
• Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it.
• Fork the project.
• Start a feature/bugfix branch.
• Commit and push until you are happy with your contribution.
• Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
• Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.

Copyright (c) 2015 kaspernj. See LICENSE.txt for further details.