art_cost.c

/*-------------------------------------------------------------------------
 *
 * artcost.c
 *		Cost estimate function for ART indexes.
 *
 *-------------------------------------------------------------------------
 */

#include "postgres.h"

#include "fmgr.h"
#include "utils/selfuncs.h"

#include "art.h"


void
artcostestimate(PlannerInfo *root, IndexPath *path, double loop_count,
				Cost *indexStartupCost, Cost *indexTotalCost,
				Selectivity *indexSelectivity, double *indexCorrelation,
				double *indexPages)
{
	GenericCosts costs;

	MemSet(&costs, 0, sizeof(costs));

	genericcostestimate(root, path, loop_count, &costs);

	*indexStartupCost = costs.indexStartupCost;
	*indexTotalCost = costs.indexTotalCost;
	*indexSelectivity = costs.indexSelectivity;
	*indexCorrelation = costs.indexCorrelation;
	*indexPages = costs.numIndexPages;
}