If I restore all the postgresql databases from pg_dumpall and use the -c to drop databases before restoring them the size of the base directory dramatically increases with each restore (193MB to 355MB to 624MB). If I run vacuumdb, it only drops by a few MB.
If I do the long process by: 1. stopping the postmaster 2. deleting all contents in the data folder 3. run initdb -D /var/lib/pgsql/data 4. start the postmaster 5. restore of all databases from the same pg_dumpall the size of the base directory does not balloon. I have searched online for optimized backup and restore procedures for postgresql, so far all I have found are the postgresql.org documents which are a little vague on the subject. I must assume there is a better method than my long process that does not bloat the size of the base directory (the databases) as the -c flag seems to do. Marc -- Sent via pgsql-admin mailing list (pgsql-admin@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
