io.trino.testing.statistics.Metric Maven / Gradle / Ivy
/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.trino.testing.statistics;
import io.trino.cost.PlanNodeStatsEstimate;
import java.util.OptionalDouble;
public interface Metric
{
OptionalDouble getValueFromPlanNodeEstimate(PlanNodeStatsEstimate planNodeStatsEstimate, StatsContext statsContext);
OptionalDouble getValueFromAggregationQueryResult(Object value);
// TODO rename to getAggregationSql
String getComputingAggregationSql();
}