Heikki pointed out to me that the btree delete record processing does
not respect vacuum_defer_cleanup_age. It should.
Attached patch to implement that.
Looking to commit in next few hours barring objections/suggestions, to
both HEAD and 9_0_STABLE, in time for next minor release.
--
Simon Riggs http://www.2ndQuadrant.com/books/
PostgreSQL Development, 24x7 Support, Training and Services