Bug 195970 Two issues when evaluate a query inlcuding a subquery[07]
Description: Currently, when evaluating a query which includes a subquery, the query will be evaluated twice. The binding of query will pass to subquery twice. If user write a java script such as new Date() and i++. The result of query will be incorrect. Another issue: when write the report document, the binding of query will be written twice and the performance is not good to evalulate it twice.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
return DataTypeUtil.toBytes( getValue( name ) );
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.api.IResultIterator#skipToEnd(int)
	 */
	public void skipToEnd( int groupLevel ) throws BirtException
	{
		checkStarted( );
		goThroughGapRows( groupLevel );
		logger.logp( Level.FINER,
				ResultIterator.class.getName( ),
				"skipToEnd",
				"skipping rows to the last row in the current group" );
	}
	/**
	 * 
	 * @param groupLevel
	 * @throws DataException
	 * @throws BirtException
	 */
	protected void goThroughGapRows( int groupLevel ) throws DataException,
			BirtException
	{
		
		while ( groupLevel < odiResult.getEndingGroupLevel( )
				&& odiResult.getEndingGroupLevel( ) != 0 && odiResult.next( ) )
		{
			clear( );
			this.prepareCurrentRow( );