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

Class ElasticPlanTransformer

java.lang.Object

org.apache.calcite.rel.RelShuttleImpl

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

All Implemented Interfaces:

org.apache.calcite.rel.RelShuttle

public class ElasticPlanTransformer
extends org.apache.calcite.rel.RelShuttleImpl

Implementation of RelShuttleImpl that transforms plan to fit Calcite ElasticSearch rel implementor.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ElasticPlanTransformer.ElasticExpressionMapper Implementation of RexShuttle that replaces RexInputRef expressions with ITEM calls to _MAP field.

Field Summary

Fields inherited from class org.apache.calcite.rel.RelShuttleImpl

stack

Constructor Summary

Constructors

Constructor and Description
ElasticPlanTransformer()

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.rel.RelNode	visit(org.apache.calcite.rel.RelNode other)
org.apache.calcite.rel.RelNode	visit(org.apache.calcite.rel.core.TableScan other) Replaces rowType of RelOptTable by rowType obtained from ElasticsearchTable.

Methods inherited from class org.apache.calcite.rel.RelShuttleImpl

visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visitChild, visitChildren

Methods inherited from class java.lang.Object

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

Constructor Detail

ElasticPlanTransformer

public ElasticPlanTransformer()

Method Detail

visit

public org.apache.calcite.rel.RelNode visit(org.apache.calcite.rel.core.TableScan other)

Replaces rowType of RelOptTable by rowType obtained from ElasticsearchTable.

Specified by:

visit in interface org.apache.calcite.rel.RelShuttle

Overrides:

visit in class org.apache.calcite.rel.RelShuttleImpl

visit

public org.apache.calcite.rel.RelNode visit(org.apache.calcite.rel.RelNode other)

Specified by:

visit in interface org.apache.calcite.rel.RelShuttle

Overrides:

visit in class org.apache.calcite.rel.RelShuttleImpl