Hello Philip!
I think there is an issue with this part of the code of rqlite (store/store.go).

func (s *Store) Database(leader bool) ([]byte, error) {
	if leader && s.raft.State() != raft.Leader {
		return nil, ErrNotLeader
	}
	// Ensure only one snapshot can take place at once, and block all queries.
	s.mu.Lock()
	defer s.mu.Unlock()

	f, err := ioutil.TempFile("", "rqlilte-snap-

what is prefer way to add relation and remove relation? I found example as below, but I did't find any document about the two methods.

 case 'ADD_AUTHOR_TO_BOOK':
        Book.withId(action.payload.bookId).authors.add(action.payload.author);  // add new entity ,  add relation?  this doesn't work.
        break;
    case 'REMOVE_AUTHOR_FROM_BOOK':
        Book.withId(action.payload.bo

Per discussion in #2743 this class is mis-named.

Also, rename LinkStreamValue to just plain LinkStream.

Today, OnlineIndexer uses an in-memory counter recordsScanned to log how many records have been scanned ("Built Range" logs) once every 5 minutes, while it uses a value persisted in scannedRecordsSubspace for IndexBuildState requests.

We should deprecate recordsScanned and just use scannedRecordsSubspace in "Built Range" logs. And we can also add recordsInTotal to that log. In fac