@Override public double estimateSelectivity(BitmapIndexSelector indexSelector) { return 1. - baseFilter.estimateSelectivity(indexSelector); }
@Override public double estimateSelectivity(BitmapIndexSelector indexSelector) { // Estimate selectivity with attribute value independence assumption double selectivity = 1.0; for (final Filter filter : filters) { selectivity *= filter.estimateSelectivity(indexSelector); } return selectivity; }
@Override public double estimateSelectivity(BitmapIndexSelector indexSelector) { // Estimate selectivity with attribute value independence assumption double selectivity = 0; for (final Filter filter : filters) { selectivity += filter.estimateSelectivity(indexSelector); } return Math.min(selectivity, 1.); }
final double cursorOnlyStrategyCost = (filter == null ? 1. : filter.estimateSelectivity(selector))
@Override public double estimateSelectivity(BitmapIndexSelector indexSelector) { // Estimate selectivity with attribute value independence assumption double selectivity = 1.0; for (final Filter filter : filters) { selectivity *= filter.estimateSelectivity(indexSelector); } return selectivity; }
@Override public double estimateSelectivity(BitmapIndexSelector indexSelector) { return 1. - baseFilter.estimateSelectivity(indexSelector); }
@Override public double estimateSelectivity(BitmapIndexSelector indexSelector) { // Estimate selectivity with attribute value independence assumption double selectivity = 0; for (final Filter filter : filters) { selectivity += filter.estimateSelectivity(indexSelector); } return Math.min(selectivity, 1.); }
final double cursorOnlyStrategyCost = (filter == null ? 1. : filter.estimateSelectivity(selector))