Thread: Need to Reload a Dump File - Need to Delete the PGDATA directory Again?
Hi All, I'm in the processing of migrating to Postgres 8.3.8. I did : (1) initdb (2) psql -e template1 -f 21.bak &>/tmp/out21.bak Now, I've decided that I want to reload the same file again, do I just delete the PGDATA directory and then perform the same steps again? (1) initdb (2) psql -e template1 -f 21.bak &>/tmp/out21.bak What I'm asking is that do I always need to delete the PGDATA directory and then initdb to ensure that it will be a cleanload? Thanks Mary
Re: Need to Reload a Dump File - Need to Delete the PGDATA directory Again?
From
John R Pierce
Date:
Wang, Mary Y wrote: > Hi All, > > I'm in the processing of migrating to Postgres 8.3.8. > I did : > (1) initdb > (2) psql -e template1 -f 21.bak &>/tmp/out21.bak > > Now, I've decided that I want to reload the same file again, do I just delete the PGDATA directory and then > perform the same steps again? > (1) initdb > (2) psql -e template1 -f 21.bak &>/tmp/out21.bak > > What I'm asking is that do I always need to delete the PGDATA directory and then initdb to ensure that it will be a cleanload? > is that dumpfile from pg_dumpall or pg_dump of a single database or what? if its just a single database, it should suffice to drop database mydb; create database mydb with owner myowner; and then run the script again. if its the full cluster dump, then yeah, deleting the $PGDATA and redoing initdb is the best way to insure clean initial conditions.