Bug 152443 Support boolean type in data set
Support boolean type in data set. It'll cause some data transform issue with absence of boolean type.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/odaconsumer/PreparedStatement.java
{
		ArrayList customColumns = oldProjectedColumns.getCustomColumns();
		ArrayList columnHints = oldProjectedColumns.getColumnHints();
		String[] projections = oldProjectedColumns.getProjections();
		
		if( customColumns != null )
		{
			ListIterator iter = customColumns.listIterator();
			while( iter.hasNext() )
			{
				CustomColumn customColumn = (CustomColumn) iter.next();
				newProjectedColumns.addCustomColumn( customColumn.getName(), 
				                                     customColumn.getType() );
			}
		}
		
		if( columnHints != null )
		{
			ListIterator iter = columnHints.listIterator();
			while( iter.hasNext() )
			{
				ColumnHint columnHint = (ColumnHint) iter.next();
				newProjectedColumns.addHint( columnHint );
			}
		}
		
		newProjectedColumns.setProjectedNames( projections );
	}
	
	/**