On Fri, Apr 2, 2021 at 4:23 AM SATYANARAYANA NARLAPURAM <satyanarlapu...@gmail.com> wrote: > Why pg_walfile_name() can't be executed under recovery?
I believe the issue is that the backend executing the function might not have an accurate idea about which TLI to use. But I don't understand why we can't find some solution to that problem. > What is the best way for me to get the current timeline and/or the file being > recovering on the standby using a postgres query? I know I can get it via > process title but don't want to go that route. pg_stat_wal_receiver has LSN and TLI information, but probably won't help except when WAL receiver is actually active. pg_last_wal_receive_lsn() and pg_last_wal_replay_lsn() will give the LSN at any point during recovery, but not the TLI. We might have some gaps in this area... -- Robert Haas EDB: http://www.enterprisedb.com
