Index: createplan.c
===================================================================
RCS file: /projects/cvsroot/pgsql/src/backend/optimizer/plan/createplan.c,v
retrieving revision 1.248
diff -r1.248 createplan.c
1651a1652,1660
> #define PATH_ROWS(path) \
> 	(IsA(path, UniquePath) ? \
> 	 ((UniquePath *) (path))->rows : \
> 	 (path)->parent->rows)
> 
> extern void ExecChooseHashTableSize(double ntuples, int tupwidth,
>                                                 int *numbuckets,
>                                                 int *numbatches);
> 
1663a1673,1676
> 	Path	   *outer_path = best_path->jpath.outerjoinpath;
> 	double		outer_path_rows = PATH_ROWS(outer_path);
> 	int		nbatch;
> 	int		nbuckets;
1699a1713,1719
> 	/* We don't want any excess columns in tuples we write to disk */
> 	ExecChooseHashTableSize(outer_path_rows,outer_path->parent->width,&nbuckets,&nbatch);
> 	if (nbatch > 1)
> 	{
> 		 disuse_physical_tlist(outer_plan, outer_path);
> 	}
>