Hi, If a bit of primary database downtime (and a lot of standby(s) re-sync time) is an issue, I would use logical replication. regards, fabio pardi On 3/7/19 12:40 PM, still Learner wrote: > Hi There, > > Planning to upgrade a double digit TB sized DB from PG 9.4 to 11.1. what > is the best way ? Logical or pgupgrade with -k ? Or any other plz > suggest. Tried slony but didn't help much in poc. > > Thanks in advance. > > Regards.