// Table return the table name of the index.
func (idx Index) Table() string {
	return idx.TableName
}

// Name return the name of the index.
func (idx Index) Name() string {
	return idx.NameValue
}

// Columns return the columns of the index
func (idx Index) Columns() []string {
	return idx.ColumnList
}

// PrimaryKey returns the index is primary key or not.
func (idx Index) PrimaryKey() (isPrimaryKey bool, ok bool) {

	if db.Statement.Schema != nil {
		for idx, name := range columns {
			if field := db.Statement.Schema.LookUpField(name); field != nil {
				values[idx] = reflect.New(reflect.PtrTo(field.FieldType)).Interface()
				continue
			}
			values[idx] = new(interface{})
		}
	} else if len(columnTypes) > 0 {
		for idx, columnType := range columnTypes {
			if columnType.ScanType() != nil {

        }
    }


    protected final FileEntry advance ( boolean last ) throws CIFSException {
        FileEntry[] results = getResults();
        while ( this.ridx < results.length ) {
            FileEntry itm = results[ this.ridx ];
            this.ridx++;
            if ( filter(itm) ) {
                return itm;
            }
        }

        if ( !last && !isDone() ) {
            if ( !fetchMore() ) {

        int n = this.response.getStatus() == WinError.ERROR_MORE_DATA ? this.response.getNumEntries() - 1 : this.response.getNumEntries();
        while ( this.ridx < n ) {
            FileEntry itm = this.response.getResults()[ this.ridx ];
            this.ridx++;
            if ( filter(itm) ) {
                return itm;
            }
        }

        if (result != null) {
            while (true) {
                int idx = result.indexOf("/../");
                if (idx < 0) {
                    break;
                } else if (idx == 0) {
                    result = result.substring(3);
                    continue;
                }
                int parent = idx - 1;
                while (parent >= 0 && result.charAt(parent) == '/') {

        }

        int idx = 0;
        String u = url;
        if (u.startsWith("https:") || u.startsWith("http:")) {
            idx = u.lastIndexOf('?');
            if (idx >= 0) {
                u = u.substring(0, idx);
            }

            idx = u.lastIndexOf('#');
            if (idx >= 0) {
                u = u.substring(0, idx);
            }
        }

	)

	convertParams = func(v interface{}, idx int) {
		switch v := v.(type) {
		case bool:
			vars[idx] = strconv.FormatBool(v)
		case time.Time:
			if v.IsZero() {
				vars[idx] = escaper + tmFmtZero + escaper
			} else {
				vars[idx] = escaper + v.Format(tmFmtWithMS) + escaper
			}
		case *time.Time:
			if v != nil {
				if v.IsZero() {
					vars[idx] = escaper + tmFmtZero + escaper
				} else {

			for idx, name := range db.Statement.Selects {
				if db.Statement.Schema == nil {
					clauseSelect.Columns[idx] = clause.Column{Name: name, Raw: true}
				} else if f := db.Statement.Schema.LookUpField(name); f != nil {
					clauseSelect.Columns[idx] = clause.Column{Name: f.DBName}
				} else {
					clauseSelect.Columns[idx] = clause.Column{Name: name, Raw: true}
				}
			}

	if len(rr.recordDelimiter) == 1 {
		for idx := 0; idx < len(p); {
			i := bytes.Index(p[idx:], rr.recordDelimiter)
			if i < 0 {
				break
			}
			idx += i
			p[idx] = '\n'
		}
		return n, nil
	}

	// 2 characters...
	for idx := 0; idx < len(p); {
		i := bytes.Index(p[idx:], rr.recordDelimiter)
		if i < 0 {
			break
		}
		idx += i

		p[idx] = '\n'
		p = append(p[:idx+1], p[idx+2:]...)
		n--

		}
	}

	// build references
	for idx, foreignField := range foreignFields {
		// use same data type for foreign keys
		if copyableDataType(primaryFields[idx].DataType) {
			foreignField.DataType = primaryFields[idx].DataType
		}
		foreignField.GORMDataType = primaryFields[idx].GORMDataType
		if foreignField.Size == 0 {
			foreignField.Size = primaryFields[idx].Size
		}