*** nbtinsert.c.orig	Fri Aug  6 22:04:40 1999
--- nbtinsert.c	Fri Aug  6 22:10:40 1999
***************
*** 392,408 ****
  		bool		is_root = lpageop->btpo_flags & BTP_ROOT;
  
  		/*
! 		 * If we have to split leaf page in the chain of duplicates by new
! 		 * duplicate then we try to look at our right sibling first.
  		 */
  		if ((lpageop->btpo_flags & BTP_CHAIN) &&
  			(lpageop->btpo_flags & BTP_LEAF) && keys_equal)
  		{
- 			bool		use_left = true;
- 
  			rbuf = _bt_getbuf(rel, lpageop->btpo_next, BT_WRITE);
  			rpage = BufferGetPage(rbuf);
  			rpageop = (BTPageOpaque) PageGetSpecialPointer(rpage);
  			if (!P_RIGHTMOST(rpageop))	/* non-rightmost page */
  			{					/* If we have the same hikey here then
  								 * it's yet another page in chain. */
--- 392,409 ----
  		bool		is_root = lpageop->btpo_flags & BTP_ROOT;
  
  		/*
! 		 * Instead of splitting leaf page in the chain of duplicates 
! 		 * by new duplicate, insert it into some right page.
  		 */
  		if ((lpageop->btpo_flags & BTP_CHAIN) &&
  			(lpageop->btpo_flags & BTP_LEAF) && keys_equal)
  		{
  			rbuf = _bt_getbuf(rel, lpageop->btpo_next, BT_WRITE);
  			rpage = BufferGetPage(rbuf);
  			rpageop = (BTPageOpaque) PageGetSpecialPointer(rpage);
+ 			/* 
+ 			 * some checks 
+ 			 */
  			if (!P_RIGHTMOST(rpageop))	/* non-rightmost page */
  			{					/* If we have the same hikey here then
  								 * it's yet another page in chain. */
***************
*** 418,449 ****
  									 BTGreaterStrategyNumber))
  					elog(FATAL, "btree: hikey is out of order");
  				else if (rpageop->btpo_flags & BTP_CHAIN)
- 
  					/*
  					 * If hikey > scankey then it's last page in chain and
  					 * BTP_CHAIN must be OFF
  					 */
  					elog(FATAL, "btree: lost last page in the chain of duplicates");
- 
- 				/* if there is room here then we use this page. */
- 				if (PageGetFreeSpace(rpage) > itemsz)
- 					use_left = false;
  			}
  			else
  /* rightmost page */
  			{
  				Assert(!(rpageop->btpo_flags & BTP_CHAIN));
- 				/* if there is room here then we use this page. */
- 				if (PageGetFreeSpace(rpage) > itemsz)
- 					use_left = false;
  			}
! 			if (!use_left)		/* insert on the right page */
! 			{
! 				_bt_relbuf(rel, buf, BT_WRITE);
! 				return (_bt_insertonpg(rel, rbuf, stack, keysz,
! 									   scankey, btitem, afteritem));
! 			}
! 			_bt_relbuf(rel, rbuf, BT_WRITE);
  		}
  
  		/*
--- 419,438 ----
  									 BTGreaterStrategyNumber))
  					elog(FATAL, "btree: hikey is out of order");
  				else if (rpageop->btpo_flags & BTP_CHAIN)
  					/*
  					 * If hikey > scankey then it's last page in chain and
  					 * BTP_CHAIN must be OFF
  					 */
  					elog(FATAL, "btree: lost last page in the chain of duplicates");
  			}
  			else
  /* rightmost page */
  			{
  				Assert(!(rpageop->btpo_flags & BTP_CHAIN));
  			}
! 			_bt_relbuf(rel, buf, BT_WRITE);
! 			return (_bt_insertonpg(rel, rbuf, stack, keysz,
! 								   scankey, btitem, afteritem));
  		}
  
  		/*