The following review has been posted through the commitfest application:
make installcheck-world: tested, passed
Implements feature: tested, passed
Spec compliant: tested, passed
Documentation: tested, passed
v2-0001 and v2-0002 look fine, but I don't like much the idea of introducing a new GUC in v2-0003. It's for very specific needs, which most of the users, I believe, don't care about. I suggest dealing with v2-0001 and v2-0002 first and then maybe submit and discuss v2-0003 as a separate CF entry.
Tested on MacOS against master `1ec7fca8`.
The new status of this patch is: Ready for Committer