Package io.trino.cost

Class ComparisonStatsCalculator

java.lang.Object

io.trino.cost.ComparisonStatsCalculator

public final class ComparisonStatsCalculator
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final double	OVERLAPPING_RANGE_INEQUALITY_FILTER_COEFFICIENT

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

Field Details

OVERLAPPING_RANGE_INEQUALITY_FILTER_COEFFICIENT

public static final double OVERLAPPING_RANGE_INEQUALITY_FILTER_COEFFICIENT

See Also:

• Constant Field Values

Method Details

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)