Apparently the following patch[1] got committed to head only (9.6 at the time) and never made it into back branches i.e. 9.5, 9.4 and 9.3. Is it an oversight ?
[1] http://git.postgresql.org/pg/commitdiff/868628e4fd44d75987d6c099ac63613cc5417629 Regards, Haroon -- Haroon http://www.2ndQuadrant.com/ <http://www.2ndquadrant.com/> PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services