public class Avg extends AbstractAggregateOperator
Note that we introduce AVG as a first-class object into the algebra, despite it being defined as a compound of other operators (namely, SUM and COUNT). This allows us to more easily optimize evaluation.
arg| Constructor and Description |
|---|
Avg(ValueExpr arg) |
Avg(ValueExpr arg,
boolean distinct) |
| Modifier and Type | Method and Description |
|---|---|
Avg |
clone()
Returns a (deep) clone of this query model node.
|
boolean |
equals(Object other)
Returns true if this query model node and its children are recursively equal to o and its
children.
|
int |
hashCode() |
<X extends Exception> |
visit(QueryModelVisitor<X> visitor)
Visits this node.
|
isDistinct, setDistinctgetArg, replaceChildNode, setArg, visitChildrengetCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getSignature, getTotalTimeNanosActual, isGraphPatternGroup, isVariableScopeChange, nullEquals, replaceNodeInList, replaceWith, setCostEstimate, setGraphPatternGroup, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, setVariableScopeChange, toStringfinalize, getClass, notify, notifyAll, wait, wait, waitgetCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getSignature, getTotalTimeNanosActual, replaceChildNode, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toString, visitChildrenpublic <X extends Exception> void visit(QueryModelVisitor<X> visitor) throws X extends Exception
QueryModelNodeX extends Exceptionpublic boolean equals(Object other)
QueryModelNodeequals in interface QueryModelNodeequals in class UnaryValueOperatorpublic int hashCode()
hashCode in class AbstractAggregateOperatorpublic Avg clone()
QueryModelNodeclone in interface AggregateOperatorclone in interface QueryModelNodeclone in interface ValueExprclone in class AbstractAggregateOperatorCopyright © 2015-2020 Eclipse Foundation. All Rights Reserved.