DB.Save(&user)

	type result struct {
		Name     string
		Nickname string
		Age      uint
	}
	var res result
	DB.Table("users").Where("name = ?", user.Name).MapColumns(map[string]string{"name": "nickname"}).Scan(&res)
	if res.Nickname != user.Name {
		t.Errorf("Expected res.Nickname to be %s, but got %s", user.Name, res.Nickname)
	}
	if res.Name != "" {

			Name     string `gorm:"size:70;uniqueIndex:idx_us6_all_names"`
			NickName string `gorm:"size:70;uniqueIndex:idx_us6_all_names"`
		}
	)
	checkField(&UniqueStruct5{}, "name", false, "idx_unique_struct5_name")
	checkField(&UniqueStruct6{}, "name", false, "idx_unique_struct6_name")

	checkField(&UniqueStruct7{}, "name", false, "")
	checkField(&UniqueStruct7{}, "nick_name", false, "")
	checkField(&UniqueStruct7{}, "nick_name", false, "")

    return policy == Policies.DISABLED
        ? new ReentrantLock(fair)
        : new CycleDetectingReentrantLock(new LockGraphNode(lockName), fair);
  }

  /** Equivalent to {@code newReentrantReadWriteLock(lockName, false)}. */
  public ReentrantReadWriteLock newReentrantReadWriteLock(String lockName) {
    return newReentrantReadWriteLock(lockName, false);
  }

  /**

	retryInterval: time.Minute,
})

type sharedLock struct {
	lockContext chan LockContext
}

func (ld sharedLock) backgroundRoutine(ctx context.Context, objAPI ObjectLayer, lockName string) {
	for {
		locker := objAPI.NewNSLock(minioMetaBucket, lockName)
		lkctx, err := locker.GetLock(ctx, sharedLockTimeout)
		if err != nil {
			continue
		}

	keepLock:
		for {
			select {
			case <-ctx.Done():
				return

	}

	for loc, expectedDiskName := range expectedDisksName {
		diskName := actualDisksName[loc]
		if diskName == "" {
			log.Printf("skipping disk location `%s`, err: %v\n", diskName, err)
			continue
		}
		mami, err := getMajorMinor(diskName)
		if err != nil {
			log.Printf("skipping `%s`, err: %v\n", diskName, err)
			continue
		}
		devName := mountMap[mami]
		uuid := uuidMap[devName]

	// Create an archive with a large linkname
	fileinfo, err := os.Stat("testdata/small.txt")
	if err != nil {
		t.Fatal(err)
	}
	hdr, err := FileInfoHeader(fileinfo, "")
	if err != nil {
		t.Fatalf("os.Stat:1 %v", err)
	}
	hdr.Typeflag = TypeSymlink
	// Force a PAX long linkname to be written
	longLinkname := strings.Repeat("1234567890/1234567890", 10)
	hdr.Linkname = longLinkname

	hdr.Size = 0

		}
		if got, want := h2.Gname, v.h.Gname; got != want {
			t.Errorf("i=%d: Gname: got %q, want %q", i, got, want)
		}
		if got, want := h2.Linkname, v.h.Linkname; got != want {
			t.Errorf("i=%d: Linkname: got %v, want %v", i, got, want)
		}
		if got, want := h2.Typeflag, v.h.Typeflag; got != want {
			t.Logf("%#v %#v", v.h, fi.Sys())
			t.Errorf("i=%d: Typeflag: got %q, want %q", i, got, want)

		}
	}

	// Check basic fields.
	var blk block
	v7 := blk.toV7()
	ustar := blk.toUSTAR()
	gnu := blk.toGNU()
	verifyString(h.Name, len(v7.name()), "Name", paxPath)
	verifyString(h.Linkname, len(v7.linkName()), "Linkname", paxLinkpath)
	verifyString(h.Uname, len(ustar.userName()), "Uname", paxUname)
	verifyString(h.Gname, len(ustar.groupName()), "Gname", paxGname)
	verifyNumeric(h.Mode, len(v7.mode()), "Mode", paxNone)

			ModTime:  time.Unix(1392395740, 0),
			Typeflag: 0x53,
			Linkname: "",
			Uname:    "david",
			Gname:    "david",
			Devmajor: 0,
			Devminor: 0,
			Format:   FormatGNU,
		}, {
			Name:     "sparse-posix-0.0",
			Mode:     420,
			Uid:      1000,
			Gid:      1000,
			Size:     200,
			ModTime:  time.Unix(1392342187, 0),
			Typeflag: 0x30,
			Linkname: "",
			Uname:    "david",
			Gname:    "david",

	// Use long-link files if Name or Linkname exceeds the field size.
	const longName = "././@LongLink"
	if len(hdr.Name) > nameSize {
		data := hdr.Name + "\x00"
		if err := tw.writeRawFile(longName, data, TypeGNULongName, FormatGNU); err != nil {
			return err
		}
	}
	if len(hdr.Linkname) > nameSize {
		data := hdr.Linkname + "\x00"