When I've upgraded postgres in the past on my server/workstation it's
usually been from one major version to the next. What I want to do now is to
move from 12.7 (on an older OS linux version) to 18.6 (on the current
version.)
I know that data formats can change with postgres version increases so my
question is: can I use dumpall in the 12.7 version and move that to the host
running 18.6 since the output is a text .sql file?
TIA,
Rich