org.apache.drill.exec.store.ischema

Class InfoSchemaTable<S>

java.lang.Object

org.apache.drill.exec.store.ischema.InfoSchemaTable<S>

Direct Known Subclasses:

InfoSchemaTable.Catalogs, InfoSchemaTable.Columns, InfoSchemaTable.Schemata, InfoSchemaTable.Tables, InfoSchemaTable.Views

public abstract class InfoSchemaTable<S>
extends Object

Base class for tables in INFORMATION_SCHEMA. Defines the table (fields and types).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	InfoSchemaTable.Catalogs Layout for the CATALOGS table.
static class	InfoSchemaTable.Columns Layout for the COLUMNS table.
static class	InfoSchemaTable.Field
static class	InfoSchemaTable.Schemata Layout for the SCHEMATA table.
static class	InfoSchemaTable.Tables Layout for the TABLES table.
static class	InfoSchemaTable.Views Layout for the VIEWS table.

Field Summary

Fields

Modifier and Type	Field and Description
static TypeProtos.MajorType	INT
static TypeProtos.MajorType	VARCHAR

Constructor Summary

Constructors

Constructor and Description
InfoSchemaTable(String tableName, List<InfoSchemaTable.Field> fields)

Method Summary

Methods

Modifier and Type	Method and Description
abstract InfoSchemaRecordGenerator<S>	getRecordGenerator(OptionManager optionManager)
static org.apache.calcite.rel.type.RelDataType	getRelDataType(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory, TypeProtos.MajorType type)
org.apache.calcite.rel.type.RelDataType	getRowType(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)

Methods inherited from class java.lang.Object

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

Field Detail

VARCHAR

public static final TypeProtos.MajorType VARCHAR

INT

public static final TypeProtos.MajorType INT

Constructor Detail

InfoSchemaTable

public InfoSchemaTable(String tableName,
               List<InfoSchemaTable.Field> fields)

Method Detail

getRelDataType

public static org.apache.calcite.rel.type.RelDataType getRelDataType(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory,
                                                     TypeProtos.MajorType type)

getRowType

public org.apache.calcite.rel.type.RelDataType getRowType(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)

getRecordGenerator

public abstract InfoSchemaRecordGenerator<S> getRecordGenerator(OptionManager optionManager)