defer periodicTimer.Stop()

	for {
		select {
		case <-periodicTimer.C:
			now := UTCNow()
			ahs.Lock()
			for path, h := range ahs.healSeqMap {
				if h.hasEnded() && h.endTime.Add(keepHealSeqStateDuration).Before(now) {
					delete(ahs.healSeqMap, path)
				}
			}
			ahs.Unlock()

			periodicTimer.Reset(time.Minute * 5)
		case <-ctx.Done():

			if !v.hasEnded() {
				v.stop()
			}
		}
		globalAllHealState.Unlock()
	}

	// Init background heal state
	if globalBackgroundHealState == nil {
		globalBackgroundHealState = newHealState(GlobalContext, false)
	} else {
		globalBackgroundHealState.Lock()
		for _, v := range globalBackgroundHealState.healSeqMap {
			if !v.hasEnded() {
				v.stop()
			}
		}

	// not trigger alert column
	AssertEqual(t, true, DB.Migrator().HasConstraint(&UniqueTest{}, "uni_unique_tests_name"))
	AssertEqual(t, false, DB.Migrator().HasIndex(&UniqueTest{}, "name"))
	AssertEqual(t, false, DB.Migrator().HasIndex(&UniqueTest{}, "name_1"))
	AssertEqual(t, false, DB.Migrator().HasIndex(&UniqueTest{}, "name_2"))

	ct, err = findColumnType(&UniqueTest{}, "name")
	if err != nil {
		t.Fatalf("findColumnType err:%v", err)
	}

				name = idx.Name
			}
		}

		return m.DB.Exec("DROP INDEX ? ON ?", clause.Column{Name: name}, m.CurrentTable(stmt)).Error
	})
}

// HasIndex check has index `name` or not
func (m Migrator) HasIndex(value interface{}, name string) bool {
	var count int64
	m.RunWithValue(value, func(stmt *gorm.Statement) error {
		currentDatabase := m.DB.Migrator().CurrentDatabase()

    return fromBytesNoCopy(bytes.clone());
  }

  /**
   * Creates a {@code HashCode} from a byte array. The array is <i>not</i> copied defensively, so it
   * must be handed-off so as to preserve the immutability contract of {@code HashCode}.
   */
  static HashCode fromBytesNoCopy(byte[] bytes) {
    return new BytesHashCode(bytes);
  }

      // at least one element.
      this.expectedValuesPerKey = max(expectedValuesPerKey, 1);

      return this;
    }

    /**
     * By default, if we are handed a value collection bigger than expectedValuesPerKey, presize to
     * accept that many elements.
     *
     * <p>This gets overridden in ImmutableSetMultimap.Builder to only trust the size of {@code

      // at least one element.
      this.expectedValuesPerKey = max(expectedValuesPerKey, 1);

      return this;
    }

    /**
     * By default, if we are handed a value collection bigger than expectedValuesPerKey, presize to
     * accept that many elements.
     *
     * <p>This gets overridden in ImmutableSetMultimap.Builder to only trust the size of {@code