org.apache.hadoop.hive.ql.optimizer.index

Class RewriteQueryUsingAggregateIndexCtx

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.index.RewriteQueryUsingAggregateIndexCtx

All Implemented Interfaces:

NodeProcessorCtx

public final class RewriteQueryUsingAggregateIndexCtx
extends Object
implements NodeProcessorCtx

RewriteQueryUsingAggregateIndexCtx class stores the context for the RewriteQueryUsingAggregateIndex used to rewrite operator plan with index table instead of base table.

Method Summary

Methods

Modifier and Type	Method and Description
String	getAggregateFunction()
ExprNodeColumnDesc	getAggrExprNode()
String	getAlias()
GenericUDAFEvaluator	getEval()
Hive	getHiveDb()
String	getIndexKey()
String	getIndexName()
static RewriteQueryUsingAggregateIndexCtx	getInstance(ParseContext parseContext, Hive hiveDb, RewriteCanApplyCtx canApplyCtx)
ParseContext	getParseContext()
void	invokeRewriteQueryProc()
void	setAggrExprNode(ExprNodeColumnDesc aggrExprNode)
void	setEval(GenericUDAFEvaluator eval)
void	setIndexKey(String indexKey)

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static RewriteQueryUsingAggregateIndexCtx getInstance(ParseContext parseContext,
                                             Hive hiveDb,
                                             RewriteCanApplyCtx canApplyCtx)

getParseContext

public ParseContext getParseContext()

getHiveDb

public Hive getHiveDb()

getIndexName

public String getIndexName()

getEval

public GenericUDAFEvaluator getEval()

setEval

public void setEval(GenericUDAFEvaluator eval)

setAggrExprNode

public void setAggrExprNode(ExprNodeColumnDesc aggrExprNode)

getAggrExprNode

public ExprNodeColumnDesc getAggrExprNode()

getAlias

public String getAlias()

getAggregateFunction

public String getAggregateFunction()

getIndexKey

public String getIndexKey()

setIndexKey

public void setIndexKey(String indexKey)

invokeRewriteQueryProc

public void invokeRewriteQueryProc()
                            throws SemanticException

Throws:

SemanticException