Bug 151535 Parameters are invisable in Joint Dataset
Trying to use "Joint Dataset" combined with parameters within underlaying Data-Sets (neccessary to achive a filtering where clause for a DateTime Field) Parameter editing ( e.g. in Chart designer) do not show the entire parameter. As specified it should show and let to edit a combination of both underlaying datasets' parameters.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/adapter/ModelDteApiAdapter.java
private IColumnDefinition newColumnDefn( ColumnHintHandle modelColumnHint )
	{
		ColumnDefinition newColumn = new ColumnDefinition( modelColumnHint
				.getColumnName( ) );
		updateColumnDefn( newColumn, modelColumnHint );
		return newColumn;
	}
	/**
	 * Find the DtE columnDefn from the given list of columnDefns that matches
	 * the given columnName.
	 */
	private ColumnDefinition findColumnDefn( List columnDefns, String columnName )
	{
		assert columnName != null;
		if ( columnDefns == null )
			return null; 
		Iterator iter = columnDefns.iterator( );
		if ( iter == null )
			return null;
		
		
		while ( iter.hasNext( ) )
		{
			ColumnDefinition column = ( ColumnDefinition ) iter.next( );
			if ( columnName.equals( column.getColumnName( ) ) )
				return column;
		}
		return null;
	}
	public static int toDteDataType( String modelDataType )