GreenplumExecutionFactory.java

/*
 * JBoss, Home of Professional Open Source.
 * See the COPYRIGHT.txt file distributed with this work for information
 * regarding copyright ownership.  Some portions may be licensed
 * to Red Hat, Inc. under one or more contributor license agreements.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
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package org.teiid.translator.jdbc.postgresql;

import org.teiid.translator.Translator;

/** 
 * Translator for Greenplum.
 */
@Translator(name="greenplum", description="A translator for the Greenplum Database")
public class GreenplumExecutionFactory extends PostgreSQLExecutionFactory {
	
	@Override
	public boolean supportsCorrelatedSubqueries() {
		return false;
	}
	
	@Override
	public boolean supportsElementaryOlapOperations() {
	    //greenplum is/was based upon postgresql 8.2, but added extensions for window functions
	    //this can be verified back to greenplum 4.1.  Since that and earlier releases are eol
	    //it suffices to just return true
	    return true;
	}

}