org.apache.hadoop.hive.ql.optimizer.ppr

Class PartitionExpressionForMetastore

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.ppr.PartitionExpressionForMetastore

All Implemented Interfaces:

PartitionExpressionProxy

public class PartitionExpressionForMetastore
extends Object
implements PartitionExpressionProxy

The basic implementation of PartitionExpressionProxy that uses ql package classes.

Constructor Summary

Constructors

Constructor and Description
PartitionExpressionForMetastore()

Method Summary

Modifier and Type	Method and Description
String	convertExprToFilter(byte[] exprBytes, String defaultPartitionName, boolean decodeFilterExpToStr)
SearchArgument	createSarg(byte[] expr)
boolean	filterPartitionsByExpr(List<org.apache.hadoop.hive.metastore.api.FieldSchema> partColumns, byte[] exprBytes, String defaultPartitionName, List<String> partitionNames)
FileFormatProxy	getFileFormatProxy(org.apache.hadoop.hive.metastore.api.FileMetadataExprType type)
org.apache.hadoop.hive.metastore.api.FileMetadataExprType	getMetadataType(String inputFormat)

Methods inherited from class java.lang.Object

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

Constructor Detail

PartitionExpressionForMetastore

public PartitionExpressionForMetastore()

Method Detail

convertExprToFilter

public String convertExprToFilter(byte[] exprBytes,
                                  String defaultPartitionName,
                                  boolean decodeFilterExpToStr)
                           throws org.apache.hadoop.hive.metastore.api.MetaException

Specified by:

convertExprToFilter in interface PartitionExpressionProxy

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

filterPartitionsByExpr

public boolean filterPartitionsByExpr(List<org.apache.hadoop.hive.metastore.api.FieldSchema> partColumns,
                                      byte[] exprBytes,
                                      String defaultPartitionName,
                                      List<String> partitionNames)
                               throws org.apache.hadoop.hive.metastore.api.MetaException

Specified by:

filterPartitionsByExpr in interface PartitionExpressionProxy

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

getFileFormatProxy

public FileFormatProxy getFileFormatProxy(org.apache.hadoop.hive.metastore.api.FileMetadataExprType type)

Specified by:

getFileFormatProxy in interface PartitionExpressionProxy

getMetadataType

public org.apache.hadoop.hive.metastore.api.FileMetadataExprType getMetadataType(String inputFormat)

Specified by:

getMetadataType in interface PartitionExpressionProxy

createSarg

public SearchArgument createSarg(byte[] expr)

Specified by:

createSarg in interface PartitionExpressionProxy