org.verdictdb.core.querying.ola

Class OlaAggregationPlan

java.lang.Object

org.verdictdb.core.querying.ola.OlaAggregationPlan

public class OlaAggregationPlan
extends Object

Plans how to chop a big query into multiple small queries.

Author:

Yongjoo Park

Constructor Summary

Constructors

Constructor and Description
OlaAggregationPlan(ScrambleMetaSet scrambleMeta, List<org.apache.commons.lang3.tuple.Pair<String,String>> scrambles)

Method Summary

Modifier and Type	Method and Description
static OlaAggregationPlan	createMergedOlaAggMeta(OlaAggregationPlan meta1, OlaAggregationPlan meta2)
org.apache.commons.lang3.tuple.Pair<Integer,Integer>	getAggBlockSpanForTable(String schemaName, String tableName, int sequence)
int	totalBlockAggCount()

Methods inherited from class java.lang.Object

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

Constructor Detail

OlaAggregationPlan

public OlaAggregationPlan(ScrambleMetaSet scrambleMeta,
                          List<org.apache.commons.lang3.tuple.Pair<String,String>> scrambles)
                   throws VerdictDBValueException

Parameters:

scrambleMeta -

scrambles - The scrambled tables that appear in a query.

Throws:

VerdictDBValueException

Method Detail

createMergedOlaAggMeta

public static OlaAggregationPlan createMergedOlaAggMeta(OlaAggregationPlan meta1,
                                                        OlaAggregationPlan meta2)

totalBlockAggCount

public int totalBlockAggCount()

getAggBlockSpanForTable

public org.apache.commons.lang3.tuple.Pair<Integer,Integer> getAggBlockSpanForTable(String schemaName,
                                                                                    String tableName,
                                                                                    int sequence)