org.apache.calcite.rel.rules.materialize

Class MaterializedViewRule.EquivalenceClasses

java.lang.Object

org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses

Enclosing class:

MaterializedViewRule<C extends MaterializedViewRule.Config>

protected static class MaterializedViewRule.EquivalenceClasses
extends Object

Class representing an equivalence class, i.e., a set of equivalent columns

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EquivalenceClasses()

Method Summary

Modifier and Type	Method and Description
protected void	addEquivalenceClass(RexTableInputRef p1, RexTableInputRef p2)
protected static MaterializedViewRule.EquivalenceClasses	copy(MaterializedViewRule.EquivalenceClasses ec)
protected List<Set<RexTableInputRef>>	getEquivalenceClasses()
protected Map<RexTableInputRef,Set<RexTableInputRef>>	getEquivalenceClassesMap()

Methods inherited from class java.lang.Object

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

Constructor Detail

EquivalenceClasses

protected EquivalenceClasses()

Method Detail

addEquivalenceClass

protected void addEquivalenceClass(RexTableInputRef p1,
                                   RexTableInputRef p2)

getEquivalenceClassesMap

protected Map<RexTableInputRef,Set<RexTableInputRef>> getEquivalenceClassesMap()

getEquivalenceClasses

protected List<Set<RexTableInputRef>> getEquivalenceClasses()

copy

protected static MaterializedViewRule.EquivalenceClasses copy(MaterializedViewRule.EquivalenceClasses ec)