*** pgsql/src/backend/nodes/tidbitmap.c	2009/01/10 21:08:36	1.17
--- pgsql/src/backend/nodes/tidbitmap.c	2009/03/24 20:17:14	1.18
***************
*** 32,38 ****
   * Copyright (c) 2003-2009, PostgreSQL Global Development Group
   *
   * IDENTIFICATION
!  *	  $PostgreSQL: pgsql/src/backend/nodes/tidbitmap.c,v 1.16 2009/01/01 17:23:43 momjian Exp $
   *
   *-------------------------------------------------------------------------
   */
--- 32,38 ----
   * Copyright (c) 2003-2009, PostgreSQL Global Development Group
   *
   * IDENTIFICATION
!  *	  $PostgreSQL: pgsql/src/backend/nodes/tidbitmap.c,v 1.17 2009/01/10 21:08:36 tgl Exp $
   *
   *-------------------------------------------------------------------------
   */
*************** tbm_add_tuples(TIDBitmap *tbm, const Ite
*** 310,315 ****
--- 310,331 ----
  }
  
  /*
+  * tbm_add_page - add a whole page to a TIDBitmap
+  *
+  * This causes the whole page to be reported (with the recheck flag)
+  * when the TIDBitmap is scanned.
+  */
+ void
+ tbm_add_page(TIDBitmap *tbm, BlockNumber pageno)
+ {
+ 	/* Enter the page in the bitmap, or mark it lossy if already present */
+ 	tbm_mark_page_lossy(tbm, pageno);
+ 	/* If we went over the memory limit, lossify some more pages */
+ 	if (tbm->nentries > tbm->maxentries)
+ 		tbm_lossify(tbm);
+ }
+ 
+ /*
   * tbm_union - set union
   *
   * a is modified in-place, b is not changed
*************** tbm_intersect_page(TIDBitmap *a, Pagetab
*** 496,502 ****
  	{
  		/*
  		 * Some of the tuples in 'a' might not satisfy the quals for 'b',
! 		 * but because the page 'b' is lossy, we don't know which ones. 
  		 * Therefore we mark 'a' as requiring rechecks, to indicate that
  		 * at most those tuples set in 'a' are matches.
  		 */
--- 512,518 ----
  	{
  		/*
  		 * Some of the tuples in 'a' might not satisfy the quals for 'b',
! 		 * but because the page 'b' is lossy, we don't know which ones.
  		 * Therefore we mark 'a' as requiring rechecks, to indicate that
  		 * at most those tuples set in 'a' are matches.
  		 */