*** a/src/backend/access/gist/gistproc.c
--- b/src/backend/access/gist/gistproc.c
***************
*** 836,842 **** gist_box_picksplit(PG_FUNCTION_ARGS)
  }
  
  /*
!  * Equality method
   *
   * This is used for both boxes and points.
   */
--- 836,843 ----
  }
  
  /*
!  * Equality method. Returns true only when boxes are exact same. We can't
!  * ignore small extents because of index consistency.
   *
   * This is used for both boxes and points.
   */
***************
*** 848,856 **** gist_box_same(PG_FUNCTION_ARGS)
  	bool	   *result = (bool *) PG_GETARG_POINTER(2);
  
  	if (b1 && b2)
! 		*result = DatumGetBool(DirectFunctionCall2(box_same,
! 												   PointerGetDatum(b1),
! 												   PointerGetDatum(b2)));
  	else
  		*result = (b1 == NULL && b2 == NULL) ? TRUE : FALSE;
  	PG_RETURN_POINTER(result);
--- 849,857 ----
  	bool	   *result = (bool *) PG_GETARG_POINTER(2);
  
  	if (b1 && b2)
! 		*result = (b1->low.x == b2->low.x && b1->low.y == b2->low.y && 
! 				   b1->high.x == b2->high.x && b1->high.y == b2->high.y)
! 				  ? TRUE : FALSE;
  	else
  		*result = (b1 == NULL && b2 == NULL) ? TRUE : FALSE;
  	PG_RETURN_POINTER(result);
***************
*** 1326,1331 **** gist_point_consistent(PG_FUNCTION_ARGS)
--- 1327,1333 ----
  	bool	   *recheck = (bool *) PG_GETARG_POINTER(4);
  	bool		result;
  	StrategyNumber strategyGroup = strategy / GeoStrategyNumberOffset;
+ 	BOX		   *query, *key;
  
  	switch (strategyGroup)
  	{
***************
*** 1337,1348 **** gist_point_consistent(PG_FUNCTION_ARGS)
  			*recheck = false;
  			break;
  		case BoxStrategyNumberGroup:
! 			result = DatumGetBool(DirectFunctionCall5(
! 													  gist_box_consistent,
! 													  PointerGetDatum(entry),
! 													  PG_GETARG_DATUM(1),
! 									  Int16GetDatum(RTOverlapStrategyNumber),
! 											   0, PointerGetDatum(recheck)));
  			break;
  		case PolygonStrategyNumberGroup:
  			{
--- 1339,1356 ----
  			*recheck = false;
  			break;
  		case BoxStrategyNumberGroup:
! 			/* 
! 			 * This code repeats logic of on_ob which uses simple comparison
! 			 * rather than FP* functions.
! 			 */
! 			query = PG_GETARG_BOX_P(1);
! 			key = DatumGetBoxP(entry->key);
! 			
! 			*recheck = false;
! 			result = key->high.x >= query->low.x && 
! 					 key->low.x <= query->high.x &&
! 					 key->high.y >= query->low.y && 
! 					 key->low.y <= query->high.y;
  			break;
  		case PolygonStrategyNumberGroup:
  			{