Bug 182061 Data engine changes to support result set sharing
data/org.eclipse.birt.data.tests/test/org/eclipse/birt/data/engine/binding/GroupOnRowTest.java
qd,
				groupDefn.length,
				bindingNameRow,
				columnStr );
		testPrint( outputStr );
		this.checkOutputFile( );
	}
	
	/**
	 * Return query result
	 * @param expectedLen
	 * @param qd
	 * @param gdArray
	 * @param beArray
	 * @param columStr
	 * @return query string output
	 * @throws Exception
	 */
	private String getOutputStrForGroupTest( int expectedLen,
			QueryDefinition qd, int groupDefCount , String[] beArray,
			String[] columStr ) throws Exception
	{
		StringBuffer sBuffer = new StringBuffer( );
		
		IResultIterator ri = this.executeQuery( qd );
		String metaData = "";
		for ( int i = 0; i < columStr.length; i++ )
		{
			metaData += formatStr( columStr[i], expectedLen );
		}