checkNonnegative(expectedKeys, "expectedKeys");
    return new MultimapBuilderWithKeys<@Nullable Object>() {
      @Override
      <K extends @Nullable Object, V extends @Nullable Object> Map<K, Collection<V>> createMap() {
        return Platform.newHashMapWithExpectedSize(expectedKeys);
      }
    };
  }

  /**
   * Uses a hash table to map keys to value collections.
   *

    checkNonnegative(expectedKeys, "expectedKeys");
    return new MultimapBuilderWithKeys<@Nullable Object>() {
      @Override
      <K extends @Nullable Object, V extends @Nullable Object> Map<K, Collection<V>> createMap() {
        return Platform.newHashMapWithExpectedSize(expectedKeys);
      }
    };
  }

  /**
   * Uses a hash table to map keys to value collections.
   *

	}

	createdAt := time.Date(2020, 1, 1, 0, 0, 0, 0, time.UTC)
	updatedAt := createdAt.Unix()

	data := SerializerStruct{
		Name:            []byte("jinzhu"),
		Roles:           []string{"r1", "r2"},
		Contracts:       map[string]interface{}{"name": "jinzhu", "age": 10},
		EncryptedString: EncryptedString("pass"),
		CreatedTime:     createdAt.Unix(),
		UpdatedTime:     &updatedAt,

	var err error
	switch operation {
	default:
		err = errSRInvalidRequest(errInvalidArgument)
	case madmin.MakeWithVersioningBktOp:
		createdAt, cerr := time.Parse(time.RFC3339Nano, strings.TrimSpace(r.Form.Get("createdAt")))
		if cerr != nil {
			createdAt = timeSentinel
		}

		opts := MakeBucketOptions{
			LockEnabled:       r.Form.Get("lockEnabled") == "true",

	user := User{Name: "CreateUserExistingTimestamp"}
	curTime := now.MustParse("2016-01-01")
	user.CreatedAt = curTime
	user.UpdatedAt = curTime
	DB.Save(&user)

	AssertEqual(t, user.CreatedAt, curTime)
	AssertEqual(t, user.UpdatedAt, curTime)

	var newUser User
	DB.First(&newUser, user.ID)

	AssertEqual(t, newUser.CreatedAt, curTime)
	AssertEqual(t, newUser.UpdatedAt, curTime)
}

}

// SetCreatedAt preserves the CreatedAt time for bucket across sites in site replication. It defaults to
// creation time of bucket on this cluster in all other cases.
func (b *BucketMetadata) SetCreatedAt(createdAt time.Time) {
	if b.Created.IsZero() {
		b.Created = UTCNow()
	}
	if !createdAt.IsZero() {
		b.Created = createdAt.UTC()
	}
}

	if DB.Dialector.Name() != "gaussdb" {
		t.Skip()
	}

	type Yasuo struct {
		// TODO: function gen_random_uuid() does not exist
		ID        string `gorm:"default:gen_random_uuid()"`
		Name      string
		CreatedAt time.Time `gorm:"type:TIMESTAMP WITHOUT TIME ZONE"`
		UpdatedAt time.Time `gorm:"type:TIMESTAMP WITHOUT TIME ZONE;default:current_timestamp"`
	}

	if err := DB.Exec("CREATE EXTENSION IF NOT EXISTS pgcrypto;").Error; err != nil {

        crawlLabelId = createCrawlLabel();

        createFileConfig();
        logger.info("FileConfig is created");
        refresh();
        fileConfigId = getFileConfigIds(NAME_PREFIX).get(0);

        createJob();
        logger.info("Job is created");
        refresh();

        startJob(NAME_PREFIX);

        waitJob(NAME_PREFIX);
        refresh();
    }

    @BeforeEach
    protected void init() {

		{Name: "CreatedAt", DBName: "created_at", BindNames: []string{"Model", "CreatedAt"}, DataType: schema.Time},
		{Name: "UpdatedAt", DBName: "updated_at", BindNames: []string{"Model", "UpdatedAt"}, DataType: schema.Time},

	if opts.VersioningEnabled {
		optsMap["versioningEnabled"] = "true"
	}
	if opts.ForceCreate {
		optsMap["forceCreate"] = "true"
	}
	createdAt, _ := globalBucketMetadataSys.CreatedAt(bucket)
	optsMap["createdAt"] = createdAt.UTC().Format(time.RFC3339Nano)
	opts.CreatedAt = createdAt

	// Create bucket and enable versioning on all peers.
	makeBucketConcErr := c.concDo(
		func() error {