Dear Alexander, > FWIW, this issue is not reproduced at 7a485bd64~1, maybe this should be > taken into account.
To confirm, are you saying that the issue cannot be reproduced before 7a485bd64 right? I think it's because try_relation_open() is used in pg_get_sequence_data(). Before the commit we forcibly open the relation and raise an ERROR if it fails. The sequencesync worker exits and tries again - everything is OK. After the commit, however, we allow to fail opening and the SQL function returns NULL - this can cause the assertion failure. Best regards, Hayato Kuroda FUJITSU LIMITED
