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.

Install

Add to your Gemfile and bundle:

gem 'active_record_streamer'

Usage

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

Contributing to active-record-streamer

Copyright © 2015 kaspernj. See LICENSE.txt for further details.