org.apache.hadoop.hive.ql.optimizer.calcite.stats

Class FilterSelectivityEstimator

java.lang.Object

org.apache.calcite.rex.RexVisitorImpl<Double>

org.apache.hadoop.hive.ql.optimizer.calcite.stats.FilterSelectivityEstimator

All Implemented Interfaces:

org.apache.calcite.rex.RexVisitor<Double>

public class FilterSelectivityEstimator
extends org.apache.calcite.rex.RexVisitorImpl<Double>

Field Summary

Fields inherited from class org.apache.calcite.rex.RexVisitorImpl

deep

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FilterSelectivityEstimator(org.apache.calcite.rel.RelNode childRel)

Method Summary

Methods

Modifier and Type	Method and Description
Double	estimateSelectivity(org.apache.calcite.rex.RexNode predicate)
Double	visitCall(org.apache.calcite.rex.RexCall call)

Methods inherited from class org.apache.calcite.rex.RexVisitorImpl

visitArrayAnd, visitArrayOr, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitInputRef, visitLiteral, visitLocalRef, visitOver, visitRangeRef

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterSelectivityEstimator

protected FilterSelectivityEstimator(org.apache.calcite.rel.RelNode childRel)

Method Detail

estimateSelectivity

public Double estimateSelectivity(org.apache.calcite.rex.RexNode predicate)

visitCall

public Double visitCall(org.apache.calcite.rex.RexCall call)

Specified by:

visitCall in interface org.apache.calcite.rex.RexVisitor<Double>

Overrides:

visitCall in class org.apache.calcite.rex.RexVisitorImpl<Double>