Bug 123036 Data in a reprot is doubly stored
We currently stored data twice. Once in the content stream, once by DtE. The instance stored by content stream should not be there.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
* 
	 * @return
	 */
	org.eclipse.birt.data.engine.odi.IResultIterator getOdiResult( )
	{
		return odiResult;
	}
	/*
	 * @see org.eclipse.birt.data.engine.api.IResultIterator#findGroup(java.lang.Object[])
	 */
	public boolean findGroup( Object[] groupKeyValues ) throws BirtException
	{
		if ( groupUtil == null )
			groupUtil = new GroupUtil( this.query, this );
		return groupUtil.findGroup( groupKeyValues );
	}
	/**
	 * Util class to findGroup
	 */
	private class GroupUtil
	{
		private PreparedQuery query;
		private ResultIterator resultIterator;
		
		/**
		 * @param query
		 * @param resultIterator
		 */
		private GroupUtil(PreparedQuery query, ResultIterator resultIterator)
		{