Package io.prestosql.cost

Class ComparisonStatsCalculator

java.lang.Object

io.prestosql.cost.ComparisonStatsCalculator

public final class ComparisonStatsCalculator
extends Object

Method Summary

Modifier and Type	Method	Description
static PlanNodeStatsEstimate	estimateExpressionToExpressionComparison(PlanNodeStatsEstimate inputStatistics, SymbolStatsEstimate leftExpressionStatistics, Optional<Symbol> leftExpressionSymbol, SymbolStatsEstimate rightExpressionStatistics, Optional<Symbol> rightExpressionSymbol, ComparisonExpression.Operator operator)
static PlanNodeStatsEstimate	estimateExpressionToLiteralComparison(PlanNodeStatsEstimate inputStatistics, SymbolStatsEstimate expressionStatistics, Optional<Symbol> expressionSymbol, OptionalDouble literalValue, ComparisonExpression.Operator operator)

Methods inherited from class java.lang.Object

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

Method Detail

estimateExpressionToLiteralComparison

public static PlanNodeStatsEstimate estimateExpressionToLiteralComparison(PlanNodeStatsEstimate inputStatistics,
                                                                          SymbolStatsEstimate expressionStatistics,
                                                                          Optional<Symbol> expressionSymbol,
                                                                          OptionalDouble literalValue,
                                                                          ComparisonExpression.Operator operator)

estimateExpressionToExpressionComparison

public static PlanNodeStatsEstimate estimateExpressionToExpressionComparison(PlanNodeStatsEstimate inputStatistics,
                                                                             SymbolStatsEstimate leftExpressionStatistics,
                                                                             Optional<Symbol> leftExpressionSymbol,
                                                                             SymbolStatsEstimate rightExpressionStatistics,
                                                                             Optional<Symbol> rightExpressionSymbol,
                                                                             ComparisonExpression.Operator operator)