Function updateType

worker/mutation.go:339–354

We commit schema to disk in blocking way, should be ok because this happens only during schema mutations or we see a new predicate.

(typeName string, t *pb.TypeUpdate, ts uint64)

// We commit schema to disk in blocking way, should be ok because this happens
// only during schema mutations or we see a new predicate.
func updateType(typeName string, t *pb.TypeUpdate, ts uint64) error {
	schema.State().SetType(typeName, t)
	txn := pstore.NewTransactionAt(ts, true)
	defer txn.Discard()
	data, err := proto.Marshal(t)
	x.Check(err)
	e := &badger.Entry{
		Key:      x.TypeKey(typeName),
		Value:    data,
		UserMeta: posting.BitSchemaPosting,
	}
	if err := txn.SetEntry(e.WithDiscard()); err != nil {
		return err
	}
	return txn.CommitAt(ts, nil)
}

func hasEdges(attr string, startTs uint64) bool {
	pk := x.ParsedKey{Attr: attr}