protected boolean isInternalPrimaryKeyIndex(Table table, Index index)
protected boolean isInternalPrimaryKeyIndex(DatabaseMetaDataWrapper metaData, Table table, Index index) throws SQLException
    protected boolean isInternalPrimaryKeyIndex(Table table, Index index)    {    	if (index.getName().startsWith("SQL"))    	{            // Db2 uses the form "SQL060205225246220"    		try    		{    			Long.parseLong(index.getName().substring(3));    			return true;    		}    		catch (NumberFormatException ex)    		{    			// we ignore it    		}    	}		return false;    }