org.apache.hadoop.hive.ql.plan.ColumnStatsUpdateWork Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.hadoop.hive.ql.plan;
import java.io.Serializable;
import java.util.List;
import java.util.Map;
import org.apache.hadoop.hive.ql.plan.Explain.Level;
/**
* ColumnStatsUpdateWork implementation. ColumnStatsUpdateWork will persist the
* colStats into metastore. Work corresponds to statement like ALTER TABLE
* src_stat UPDATE STATISTICS for column key SET
* ('numDVs'='1111','avgColLen'='1.111'); ALTER TABLE src_stat_part
* PARTITION(partitionId=100) UPDATE STATISTICS for column value SET
* ('maxColLen'='4444','avgColLen'='44.4');
*/
@Explain(displayName = "Column Stats Update Work", explainLevels = { Level.USER, Level.DEFAULT, Level.EXTENDED })
public class ColumnStatsUpdateWork implements Serializable {
private static final long serialVersionUID = 1L;
private ColumnStatsDesc colStats;
private String partName;
private Map mapProp;
public ColumnStatsUpdateWork(ColumnStatsDesc colStats, String partName,
Map mapProp) {
this.partName = partName;
this.colStats = colStats;
this.mapProp = mapProp;
}
@Override
public String toString() {
return null;
}
@Explain(displayName = "Column Stats Desc")
public ColumnStatsDesc getColStats() {
return colStats;
}
public String getPartName() {
return partName;
}
public Map getMapProp() {
return mapProp;
}
}