Peter Lee <peterlee3...@yahoo.com> writes: > Question: will Postgres databases (such as Postgres12 originally installed > on a RHEL 6 server) continue to function properly after the server get O/S > upgrade to RHEL 7??
Possibly, but why don't you do the OS upgrade first? RHEL6 has been EOL for some time, so installing new functionality on a server that's still running that doesn't seem like prudent sysadmin-ship. The main hazard you'd be looking at if you do it in the other order is that RHEL7 might have different locale sorting behavior, resulting in effectively-corrupt indexes on text columns. For more info about that see https://wiki.postgresql.org/wiki/Locale_data_changes That page claims that only the de_DE.UTF-8 locale changed in RHEL7, but I don't know that I'd risk money on that being true. regards, tom lane
