usejustscrollinGETserach

Yep, we knew that this behavior would slow down in ES 2, and then be greatly improved in ES 3/5, where they optimized that sort specifically.

A great PR to add would be to determine the

version of elasticsearch and decide how to handle that sort. I'm also not personally sure if we need a sort at all... and it the use of

on its own will maintain the sort. For elasticdump, we only need it to guarantee offsets via

, so perhaps we can ignore the sort if there is no

option.