io.prestosql.sql.planner.optimizations

Class QueryCardinalityUtil

java.lang.Object

io.prestosql.sql.planner.optimizations.QueryCardinalityUtil

public final class QueryCardinalityUtil
extends Object

Method Summary

Modifier and Type	Method and Description
static com.google.common.collect.Range<Long>	extractCardinality(PlanNode node)
static com.google.common.collect.Range<Long>	extractCardinality(PlanNode node, Lookup lookup)
static boolean	isAtMost(PlanNode node, Lookup lookup, long maxCardinality)
static boolean	isAtMostScalar(PlanNode node)
static boolean	isAtMostScalar(PlanNode node, Lookup lookup)
static boolean	isScalar(PlanNode node)
static boolean	isScalar(PlanNode node, Lookup lookup)

Methods inherited from class java.lang.Object

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

Method Detail

isScalar

public static boolean isScalar(PlanNode node)

isScalar

public static boolean isScalar(PlanNode node,
                               Lookup lookup)

isAtMostScalar

public static boolean isAtMostScalar(PlanNode node)

isAtMostScalar

public static boolean isAtMostScalar(PlanNode node,
                                     Lookup lookup)

isAtMost

public static boolean isAtMost(PlanNode node,
                               Lookup lookup,
                               long maxCardinality)

extractCardinality

public static com.google.common.collect.Range<Long> extractCardinality(PlanNode node)

extractCardinality

public static com.google.common.collect.Range<Long> extractCardinality(PlanNode node,
                                                                       Lookup lookup)