Are there any Ruby ORMs which use cursors or smart fetch?

Question

I\'m looking for a Ruby ORM to replace ActiveRecord. I\'ve been looking at Sequel and DataMapper. They look pretty good however none of them seems to do the basic: not loading e

Answer 1

This code works faster than find_in_batches in ActiveRecord

id_max = table.get(:max[:id])
id_min = table.get(:min[:id])
n=1000
(0..(id_max-id_min)/n).map.each do |i|
    table.filter(:id >= id_min+n*i, :id < id_min+n*(i+1)).each {|row|}
end