Package org.apache.drill.exec.store.elasticsearch.plan

Class ElasticsearchProjectRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.RelRule<org.apache.calcite.rel.convert.ConverterRule.Config>

org.apache.calcite.rel.convert.ConverterRule

org.apache.drill.exec.store.elasticsearch.plan.ElasticsearchProjectRule

public class ElasticsearchProjectRule
extends org.apache.calcite.rel.convert.ConverterRule

Rule for converting Drill project to ElasticSearch project. This rule contains a logic to split the project if it would have expressions and convert only a simple project to ElasticSearch project.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.rel.convert.ConverterRule

org.apache.calcite.rel.convert.ConverterRule.Config

Nested classes/interfaces inherited from class org.apache.calcite.plan.RelRule

org.apache.calcite.plan.RelRule.Done, org.apache.calcite.plan.RelRule.MatchHandler<R extends org.apache.calcite.plan.RelOptRule>, org.apache.calcite.plan.RelRule.OperandBuilder, org.apache.calcite.plan.RelRule.OperandDetailBuilder<R extends org.apache.calcite.rel.RelNode>, org.apache.calcite.plan.RelRule.OperandTransform

Nested classes/interfaces inherited from class org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.RelOptRule.ConverterRelOptRuleOperand

Field Summary

Fields

Modifier and Type	Field	Description
static final ElasticsearchProjectRule	INSTANCE

Fields inherited from class org.apache.calcite.plan.RelRule

config

Fields inherited from class org.apache.calcite.plan.RelOptRule

description, operands, relBuilderFactory

Method Summary

Modifier and Type	Method	Description
org.apache.calcite.rel.RelNode	convert(org.apache.calcite.rel.RelNode relNode)

Methods inherited from class org.apache.calcite.rel.convert.ConverterRule

getInTrait, getOutConvention, getOutTrait, getTraitDef, isGuaranteed, onMatch

Methods inherited from class org.apache.calcite.plan.RelOptRule

any, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, hashCode, matches, none, operand, operand, operand, operand, operand, operandJ, operandJ, some, toString, unordered

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

INSTANCE

public static final ElasticsearchProjectRule INSTANCE

Method Details

convert

public org.apache.calcite.rel.RelNode convert(org.apache.calcite.rel.RelNode relNode)

Specified by:

convert in class org.apache.calcite.rel.convert.ConverterRule