org.apache.flink.table.planner.functions.aggfunctions

Class MinAggFunction.StringMinAggFunction

java.lang.Object

org.apache.flink.table.functions.UserDefinedFunction

org.apache.flink.table.planner.functions.aggfunctions.DeclarativeAggregateFunction

org.apache.flink.table.planner.functions.aggfunctions.MinAggFunction

org.apache.flink.table.planner.functions.aggfunctions.MinAggFunction.StringMinAggFunction

All Implemented Interfaces:

Serializable, org.apache.flink.table.functions.FunctionDefinition

Enclosing class:

MinAggFunction

public static class MinAggFunction.StringMinAggFunction
extends MinAggFunction

Built-in String Min aggregate function.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.table.planner.functions.aggfunctions.MinAggFunction

MinAggFunction.BooleanMinAggFunction, MinAggFunction.ByteMinAggFunction, MinAggFunction.DateMinAggFunction, MinAggFunction.DecimalMinAggFunction, MinAggFunction.DoubleMinAggFunction, MinAggFunction.FloatMinAggFunction, MinAggFunction.IntMinAggFunction, MinAggFunction.LongMinAggFunction, MinAggFunction.ShortMinAggFunction, MinAggFunction.StringMinAggFunction, MinAggFunction.TimeMinAggFunction, MinAggFunction.TimestampMinAggFunction

Constructor Summary

Constructors

Constructor and Description
StringMinAggFunction()

Method Summary

Modifier and Type	Method and Description
org.apache.flink.table.types.DataType	getResultType() The result type of the function.

Methods inherited from class org.apache.flink.table.planner.functions.aggfunctions.MinAggFunction

accumulateExpressions, aggBufferAttributes, getAggBufferTypes, getValueExpression, initialValuesExpressions, mergeExpressions, operandCount, retractExpressions

Methods inherited from class org.apache.flink.table.planner.functions.aggfunctions.DeclarativeAggregateFunction

getKind, getTypeInference, mergeOperand, mergeOperands, operand, operands

Methods inherited from class org.apache.flink.table.functions.UserDefinedFunction

close, functionIdentifier, open, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.flink.table.functions.FunctionDefinition

getRequirements, isDeterministic

Constructor Detail

StringMinAggFunction

public StringMinAggFunction()

Method Detail

getResultType

public org.apache.flink.table.types.DataType getResultType()

Description copied from class: DeclarativeAggregateFunction

The result type of the function.

Specified by:

getResultType in class DeclarativeAggregateFunction