diff -rpcd a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
*** a/src/backend/commands/tablecmds.c	Tue Jul 22 04:12:31 2014
--- b/src/backend/commands/tablecmds.c	Fri Aug  8 17:28:44 2014
*************** PreCommit_on_commit_actions(void)
*** 10167,10173 ****
  				/* Do nothing (there shouldn't be such entries, actually) */
  				break;
  			case ONCOMMIT_DELETE_ROWS:
! 				oids_to_truncate = lappend_oid(oids_to_truncate, oc->relid);
  				break;
  			case ONCOMMIT_DROP:
  				{
--- 10167,10180 ----
  				/* Do nothing (there shouldn't be such entries, actually) */
  				break;
  			case ONCOMMIT_DELETE_ROWS:
! 
! 				/*
! 				 * If this transaction hasn't accessed any temporary
! 				 * relations, we can skip truncating ON COMMIT DELETE ROWS
! 				 * tables, as they must still be empty.
! 				 */
! 				if (MyXactAccessedTempRel)
! 					oids_to_truncate = lappend_oid(oids_to_truncate, oc->relid);
  				break;
  			case ONCOMMIT_DROP:
  				{