private ExtendedFieldInfo getExtFieldInfo(int columnIndex) {
private ExtendedFieldInfo getExtFieldInfo(int columnIndex) throws SQLException { if (extendedInfo == null) { this.extendedInfo = getExtendedFieldInfo(connection); }
    private ExtendedFieldInfo getExtFieldInfo(int columnIndex) {        FieldKey key = new FieldKey(            getXsqlvar(columnIndex).relname,             getXsqlvar(columnIndex).sqlname);                    return (ExtendedFieldInfo)extendedInfo.get(key);    }