یعنی **هر مقداری** که توی پایتون از یه متغیر محیطی خونده می‌شه یه `str` هست، و هر تبدیل به نوع دیگه یا هر اعتبارسنجی باید توی کد انجام بشه.

توی [راهنمای کاربر پیشرفته - تنظیمات و متغیرهای محیطی](./advanced/settings.md){.internal-link target=_blank} بیشتر در مورد استفاده از متغیرهای محیطی برای مدیریت **تنظیمات برنامه** یاد می‌گیری.

## متغیر محیطی `PATH`

//     specific system recommendations based on current support case statistics and storage performance possibilities.
//     Vendors might change the settings based on the configuration and scale out of the solution (more storage nodes =>
//     higher task limit).
//
//     <S3ConcurrentTaskLimit>
//

		name = str[0:idx]
	} else {
		name = rel.Schema.namer.RelationshipFKName(*rel)
	}

	constraint := Constraint{
		Name:     name,
		Field:    rel.Field,
		OnUpdate: settings["ONUPDATE"],
		OnDelete: settings["ONDELETE"],
	}

	for _, ref := range rel.References {
		if ref.PrimaryKey != nil && (rel.JoinTable == nil || ref.OwnPrimaryKey) {

group_search_filter: (&(objectClass=group)(member:1.2.840.113556.1.4.1941:=%d))
user_dn_search_filter: (&(memberOf:1.2.840.113556.1.4.1941:=CN=group,DC=dc,DC=net)(sAMAccountName=%s))
```

### Sample settings

Here are some (minimal) sample settings for development or experimentation:

```shell
export MINIO_IDENTITY_LDAP_SERVER_ADDR=myldapserver.com:636
export MINIO_IDENTITY_LDAP_LOOKUP_BIND_DN='cn=admin,dc=min,dc=io'

        /**
         * Maven user properties. These are properties that users configure through various means such as
         * maven-user.properties files, maven.config files, command line parameters (-D flags), settings.xml,
         * or environment variables. They are evaluated during the build process and represent the primary
         * way for users to customize Maven's behavior at runtime.
         */
        USER_PROPERTIES,

/**
 * Provides access to the contents of a source independently of the
 * backing store (e.g. file system, database, memory).
 * <p>
 * This is mainly used to parse files into objects such as Maven projects,
 * models, settings, or toolchains. The source implementation handles
 * all the details of accessing the underlying content while providing
 * a uniform API to consumers.
 * <p>
 * Sources can represent:
 * <ul>

    @Throws(IOException::class)
    private fun writeResponse(
      stream: Http2Stream,
      request: RecordedRequest,
      response: MockResponse,
    ) {
      val settings = response.settings
      stream.connection.setSettings(settings)

      val bodyDelayNanos = response.bodyDelayNanos
      val trailers = response.trailers
      val body = response.body
      val socketHandler = response.socketHandler

Number of MinIO containers running replicas: 16 # Number of expanded MinIO clusters pools: 1 ## TLS Settings for MinIO tls: enabled: false ## Create a secret with private.key and public.crt files and pass that here. Ref: https://github.com/minio/minio/tree/master/docs/tls/kubernetes#2-create-kubernetes-secret certSecret: "" publicCrt: public.crt privateKey: private.key ## Trusted Certificates Settings for MinIO. Ref: https://docs.minio.io/docs/how-to-secure-access-to-minio-server-with-tls#install-...

		copy(newStmt.Joins, stmt.Joins)
	}

	if len(stmt.scopes) > 0 {
		newStmt.scopes = make([]func(*DB) *DB, len(stmt.scopes))
		copy(newStmt.scopes, stmt.scopes)
	}

	stmt.Settings.Range(func(k, v interface{}) bool {
		newStmt.Settings.Store(k, v)
		return true
	})

	return newStmt
}

// SetColumn set column's value
//
//	stmt.SetColumn("Name", "jinzhu") // Hooks Method

 */
public abstract class QueryCommand {

    /**
     * Default constructor for QueryCommand.
     * Creates a new instance of the query command with default settings.
     */
    public QueryCommand() {
        // Default constructor
    }

    /**
     * Executes the query command and returns a QueryBuilder.