org.apache.calcite.materialize

Class LatticeNode

java.lang.Object

org.apache.calcite.materialize.LatticeNode

Direct Known Subclasses:

LatticeChildNode, LatticeRootNode

public abstract class LatticeNode
extends Object

Source relation of a lattice.

Relations form a tree; all relations except the root relation (the fact table) have precisely one parent and an equi-join condition on one or more pairs of columns linking to it.

Field Summary

Fields

Modifier and Type	Field and Description
@Nullable String	alias
String	digest
LatticeTable	table

Method Summary

Modifier and Type	Method and Description
RelOptTable	relOptTable()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

table

public final LatticeTable table

alias

public final @Nullable String alias

digest

public final String digest

Method Detail

toString

public String toString()

Overrides:

toString in class Object

relOptTable

public RelOptTable relOptTable()