Package io.trino.operator.join

Class LookupJoinPageBuilder

java.lang.Object

io.trino.operator.join.LookupJoinPageBuilder

public class LookupJoinPageBuilder
extends Object

This page builder creates pages with dictionary blocks: normal dictionary blocks for the probe side and the original blocks for the build side.

TODO use dictionary blocks (probably extended kind) to avoid data copying for build side

Constructor Summary

Constructors

Constructor	Description
LookupJoinPageBuilder(List<Type> buildTypes)

Method Summary

Modifier and Type	Method	Description
void	appendNullForBuild(JoinProbe probe)	append the index for the probe and append nulls for the build
void	appendRow(JoinProbe probe, LookupSource lookupSource, long joinPosition)	append the index for the probe and copy the row for the build
Page	build(JoinProbe probe)
boolean	isEmpty()
boolean	isFull()
void	reset()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

LookupJoinPageBuilder

public LookupJoinPageBuilder(List<Type> buildTypes)

Method Details

isFull

public boolean isFull()

isEmpty

public boolean isEmpty()

reset

public void reset()

appendRow

public void appendRow(JoinProbe probe,
 LookupSource lookupSource,
 long joinPosition)

append the index for the probe and copy the row for the build

appendNullForBuild

public void appendNullForBuild(JoinProbe probe)

append the index for the probe and append nulls for the build

build

public Page build(JoinProbe probe)

toString

public String toString()

Overrides:

toString in class Object