Ao ter o tipo como `int | None`, o SQLModel saberá que essa coluna deve ser um `INTEGER` no banco de dados SQL e que ela deve ser `NULLABLE`.

* `Field(index=True)` informa ao SQLModel que ele deve criar um **índice SQL** para essa coluna, o que permitirá buscas mais rápidas no banco de dados ao ler dados filtrados por essa coluna.

## Making your change

### Code change guidelines

All code contributions should contain the following:

* Create unit tests using [Spock](https://spockframework.org/spock/docs/2.0/index.html) for new classes or methods that you introduce.
* Create integration tests that exercise a Gradle build for the bug/feature. 

```sh
export MINIO_DOMAIN=sub1.mydomain.com,sub2.mydomain.com
minio server /data
```

## Explore Further

* [MinIO Quickstart Guide](https://min.io/docs/minio/linux/index.html#quickstart-for-linux)

    //                                                                      ==============
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index(final SearchForm form) {
        validate(form, messages -> {}, this::asDictIndexHtml);
        stemmerOverridePager.clear();
        return asHtml(path_AdminDictStemmeroverride_AdminDictStemmeroverrideJsp).renderWith(data -> {

    //                                                                      ==============
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index() {
        return asListHtml();
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {

    //                                                                      ==============
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index(final SearchForm form) {
        return asListHtml();
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {

	As    string    `parser:"( \"AS\"? @Ident )?"`
}

// JSONPathElement represents a keypath component
type JSONPathElement struct {
	Key            *ObjectKey `parser:"  @@"`               // ['name'] and .name forms
	Index          *int       `parser:"| \"[\" @Int \"]\""` // [3] form
	ObjectWildcard bool       `parser:"| @\".*\""`          // .* form
	ArrayWildcard  bool       `parser:"| @\"[*]\""`         // [*] form
}

pkg syscall (freebsd-386-cgo), type IPv6MTUInfo struct, Mtu uint32
pkg syscall (freebsd-386-cgo), type IfAnnounceMsghdr struct
pkg syscall (freebsd-386-cgo), type IfAnnounceMsghdr struct, Index uint16
pkg syscall (freebsd-386-cgo), type IfAnnounceMsghdr struct, Msglen uint16
pkg syscall (freebsd-386-cgo), type IfAnnounceMsghdr struct, Name [16]int8
pkg syscall (freebsd-386-cgo), type IfAnnounceMsghdr struct, Type uint8

     * @return the child resource
     * @throws CIFSException
     */
    SmbResource resolve ( String name ) throws CIFSException;


    /**
     * Get the file index
     * 
     * @return server side file index, 0 if unavailable
     * @throws CIFSException
     */
    long fileIndex () throws CIFSException;


    /**
     * Return the attributes of this file. Attributes are represented as a

   * they're defined above -- including logic to add and subtract 1 to map between the values stored
   * in the predecessor/successor arrays and the indexes in the elements array that they identify.
   */