Bug 208168 Meaningless exception occurs when sorting condition refer to a unused binding[07]
Description: Meaningless exception occurs when sorting condition refer to a unused binding[07] Build number: 2.3.0.v2007-0800 Steps to reproduce: 1, New a table binding with a dataset 2, Define a Sort for the table 3, Delete the binding of table which is using by sorting condition 4, Preview Expected result: The exception should be meaningful. Actual result: Exception is meaningless for user to clear the mistake point Error log: An error happen during population of data. This might be caused by including data of mixed type in a column of "ANY" type
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ComputedColumnHelper.java
}
	}
	/**
	 * 
	 * @param nameList
	 * @param dataSetCCList
	 * @return
	 * @throws DataException
	 */
	private boolean hasAggregation( List nameList, List dataSetCCList )
			throws DataException
	{
		try
		{
			for ( int k = 0; k < nameList.size( ); k++ )
			{
				IComputedColumn column = null;
				for ( int i = 0; i < dataSetCCList.size( ); i++ )
				{
					column = (IComputedColumn) dataSetCCList.get( i );
					if ( column.getName( ) != null &&
							column.getName( ).equals( nameList.get( k ) ) )
						break;
					else
						column = null;
				}
				if ( column != null )
				{
					if ( ExpressionCompilerUtil.hasAggregationInExpr( column.getExpression( ) ) ||
							column.getAggregateFunction( ) != null )