eu.stratosphere.example.java.record.relational

Class TPCHQuery3

java.lang.Object

eu.stratosphere.example.java.record.relational.TPCHQuery3

All Implemented Interfaces:

Program, ProgramDescription

public class TPCHQuery3
extends Object
implements Program, ProgramDescription

The TPC-H is a decision support benchmark on relational data. Its documentation and the data generator (DBGEN) can be found on http://www.tpc.org/tpch/ .This implementation is tested with the DB2 data format. The PACT program implements a modified version of the query 3 of the TPC-H benchmark including one join, some filtering and an aggregation. SELECT l_orderkey, o_shippriority, sum(l_extendedprice) as revenue FROM orders, lineitem WHERE l_orderkey = o_orderkey AND o_orderstatus = "X" AND YEAR(o_orderdate) > Y AND o_orderpriority LIKE "Z%" GROUP BY l_orderkey, o_shippriority;

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TPCHQuery3.AggLiO Reduce PACT implements the sum aggregation.
static class	TPCHQuery3.FilterO Map PACT implements the selection and projection on the orders table.
static class	TPCHQuery3.JoinLiO Match PACT realizes the join between LineItem and Order table.

Field Summary

Fields

Modifier and Type	Field and Description
static String	PRIO_FILTER
static String	YEAR_FILTER

Constructor Summary

Constructors

Constructor and Description
TPCHQuery3()

Method Summary

Methods

Modifier and Type	Method and Description
String	getDescription()
Plan	getPlan(String... args)

Methods inherited from class java.lang.Object

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

Field Detail

YEAR_FILTER

public static final String YEAR_FILTER

See Also:

Constant Field Values

PRIO_FILTER

public static final String PRIO_FILTER

See Also:

Constant Field Values

Constructor Detail

TPCHQuery3

public TPCHQuery3()

Method Detail

getPlan

public Plan getPlan(String... args)

Specified by:

getPlan in interface Program

getDescription

public String getDescription()

Specified by:

getDescription in interface ProgramDescription