I've marked this patch as returned with feedback. It's been sitting in
the CF for a long time without any update (and does not apply anymore).
That does not mean we don't want the feature (it seems useful) so feel
free to resubmit an updated patch.
regards
--
Tomas Vondra http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services