org.apache.drill.exec.planner.common

Class DrillRelOptUtil.ProjectPushInfo

java.lang.Object

org.apache.drill.exec.planner.common.DrillRelOptUtil.ProjectPushInfo

Enclosing class:

DrillRelOptUtil

public static class DrillRelOptUtil.ProjectPushInfo
extends Object

Stores information about fields, their names and types. Is responsible for creating mapper which used in field re-writer visitor.

Constructor Summary

Constructors

Constructor and Description
ProjectPushInfo(List<SchemaPath> fields, Map<String,FieldsReWriterUtil.DesiredField> desiredFields)

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.rel.type.RelDataType	createNewRowType(org.apache.calcite.rel.type.RelDataTypeFactory factory) Creates new row type based on stores types and field names.
List<SchemaPath>	getFields()
FieldsReWriterUtil.FieldsReWriter	getInputReWriter()

Methods inherited from class java.lang.Object

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

Constructor Detail

ProjectPushInfo

public ProjectPushInfo(List<SchemaPath> fields,
                       Map<String,FieldsReWriterUtil.DesiredField> desiredFields)

Method Detail

getFields

public List<SchemaPath> getFields()

getInputReWriter

public FieldsReWriterUtil.FieldsReWriter getInputReWriter()

createNewRowType

public org.apache.calcite.rel.type.RelDataType createNewRowType(org.apache.calcite.rel.type.RelDataTypeFactory factory)

Creates new row type based on stores types and field names.

Parameters:

factory - factory for data type descriptors.

Returns:

new row type