Class CountDistinct
java.lang.Object
org.elasticsearch.xpack.esql.core.tree.Node<Expression>
org.elasticsearch.xpack.esql.core.expression.Expression
org.elasticsearch.xpack.esql.core.expression.function.Function
org.elasticsearch.xpack.esql.expression.function.aggregate.AggregateFunction
org.elasticsearch.xpack.esql.expression.function.aggregate.CountDistinct
- All Implemented Interfaces:
NamedWriteable,Writeable,PostAnalysisPlanVerificationAware,Resolvable,OptionalArgument,SurrogateExpression,ToAggregator
public class CountDistinct
extends AggregateFunction
implements OptionalArgument, ToAggregator, SurrogateExpression
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Nested Class Summary
Nested classes/interfaces inherited from class org.elasticsearch.xpack.esql.core.expression.Expression
Expression.TypeResolutionNested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable
Writeable.Reader<V>, Writeable.Writer<V> -
Field Summary
Fields -
Constructor Summary
ConstructorsConstructorDescriptionCountDistinct(Source source, Expression field, Expression precision) CountDistinct(Source source, Expression field, Expression filter, Expression precision) -
Method Summary
Modifier and TypeMethodDescriptiondataType()protected voidprotected NodeInfo<CountDistinct> info()replaceChildren(List<Expression> newChildren) protected Expression.TypeResolutionReturns the expression to be replaced by ornullif this cannot be replaced.withFilter(Expression filter) Attach a filter to the aggregate function.Methods inherited from class org.elasticsearch.xpack.esql.expression.function.aggregate.AggregateFunction
equals, field, filter, hasFilter, hashCode, parameters, postAnalysisPlanVerification, withParameters, writeToMethods inherited from class org.elasticsearch.xpack.esql.core.expression.function.Function
arguments, functionName, nodeString, nullableMethods inherited from class org.elasticsearch.xpack.esql.core.expression.Expression
canonical, canonicalize, childrenResolved, fold, foldable, propertiesToString, references, resolved, semanticEquals, semanticHash, toString, typeResolvedMethods inherited from class org.elasticsearch.xpack.esql.core.tree.Node
anyMatch, children, collect, collectFirstChildren, collectLeaves, doCollectFirst, forEachDown, forEachDown, forEachProperty, forEachPropertyDown, forEachPropertyOnly, forEachPropertyUp, forEachUp, forEachUp, nodeName, nodeProperties, replaceChildrenSameSize, source, sourceLocation, sourceText, transformChildren, transformDown, transformDown, transformNodeProps, transformPropertiesDown, transformPropertiesOnly, transformPropertiesUp, transformUp, transformUp
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Field Details
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ENTRY
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Constructor Details
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CountDistinct
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CountDistinct
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Method Details
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deprecatedWriteParams
- Overrides:
deprecatedWriteParamsin classAggregateFunction- Throws:
IOException
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getWriteableName
- Specified by:
getWriteableNamein interfaceNamedWriteable
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info
- Specified by:
infoin classNode<Expression>
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replaceChildren
- Specified by:
replaceChildrenin classNode<Expression>
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withFilter
Description copied from class:AggregateFunctionAttach a filter to the aggregate function.- Specified by:
withFilterin classAggregateFunction
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dataType
- Specified by:
dataTypein classExpression
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resolveType
- Overrides:
resolveTypein classAggregateFunction
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supplier
- Specified by:
supplierin interfaceToAggregator
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surrogate
Description copied from interface:SurrogateExpressionReturns the expression to be replaced by ornullif this cannot be replaced.- Specified by:
surrogatein interfaceSurrogateExpression
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