public class MaxAggregation extends Object implements Aggregation
举例:如果字段“age”恰好有5行(少一点我们方便举例),分别为:1、2、3、4、5,则进行 MaxAggregation 的结果为5。
限定符和类型 | 类和说明 |
---|---|
static class |
MaxAggregation.Builder |
构造器和说明 |
---|
MaxAggregation() |
限定符和类型 | 方法和说明 |
---|---|
String |
getAggName() |
AggregationType |
getAggType() |
String |
getFieldName() |
ColumnValue |
getMissing() |
protected static MaxAggregation.Builder |
newBuilder() |
com.google.protobuf.ByteString |
serialize() |
MaxAggregation |
setAggName(String aggName) |
MaxAggregation |
setFieldName(String fieldName) |
MaxAggregation |
setMissing(ColumnValue missing) |
protected static MaxAggregation.Builder newBuilder()
public String getAggName()
getAggName
在接口中 Aggregation
public AggregationType getAggType()
getAggType
在接口中 Aggregation
public com.google.protobuf.ByteString serialize()
serialize
在接口中 Aggregation
public String getFieldName()
public ColumnValue getMissing()
public MaxAggregation setAggName(String aggName)
public MaxAggregation setFieldName(String fieldName)
public MaxAggregation setMissing(ColumnValue missing)
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