org.apache.calcite.adapter.pig

类 PigTable

java.lang.Object

org.apache.calcite.schema.impl.AbstractTable

org.apache.calcite.adapter.pig.PigTable

所有已实现的接口:

org.apache.calcite.schema.Table, org.apache.calcite.schema.TranslatableTable, org.apache.calcite.schema.Wrapper

public class PigTable
extends org.apache.calcite.schema.impl.AbstractTable
implements org.apache.calcite.schema.TranslatableTable

Represents a Pig relation that is created by Pig Latin LOAD statement.

Only the default load function is supported at this point (PigStorage()).

Only VARCHAR (CHARARRAY in Pig) type supported at this point.

另请参阅:

PigTableFactory

构造器概要

构造器

构造器和说明
PigTable(String filePath, String[] fieldNames) Creates a PigTable.

方法概要

限定符和类型	方法和说明
String	getFilePath()
org.apache.calcite.rel.type.RelDataType	getRowType(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)
org.apache.calcite.rel.RelNode	toRel(org.apache.calcite.plan.RelOptTable.ToRelContext context, org.apache.calcite.plan.RelOptTable relOptTable)

从类继承的方法 org.apache.calcite.schema.impl.AbstractTable

getJdbcTableType, getStatistic, isRolledUp, rolledUpColumnValidInsideAgg, unwrap

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.calcite.schema.Table

getJdbcTableType, getStatistic, isRolledUp, rolledUpColumnValidInsideAgg

从接口继承的方法 org.apache.calcite.schema.Wrapper

maybeUnwrap, unwrapOrThrow

构造器详细资料

PigTable

public PigTable(String filePath,
                String[] fieldNames)

Creates a PigTable.

方法详细资料

getRowType

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

指定者:

getRowType 在接口中 org.apache.calcite.schema.Table

getFilePath

public String getFilePath()

toRel

public org.apache.calcite.rel.RelNode toRel(org.apache.calcite.plan.RelOptTable.ToRelContext context,
                                            org.apache.calcite.plan.RelOptTable relOptTable)

指定者:

toRel 在接口中 org.apache.calcite.schema.TranslatableTable