On 2019-Mar-06, tushar wrote: > backend> select * from pg_logical_slot_get_changes('m7',null,null); [...] > TRAP: FailedAssertion("!(slot != ((void *)0) && slot->active_pid != 0)", > File: "slot.c", Line: 428) > Aborted (core dumped)
See argumentation in https://www.postgresql.org/message-id/flat/3b2f809f-326c-38dd-7a9e-897f957a4eb1%40enterprisedb.com -- essentially, we don't really care to support this case. If you want to submit a patch to report an error before crashing, that's fine, but don't ask for this functionality to actually work. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services