> I'd run pg_dump | gzip > sqldump.gz on the old system. That took about > 30 hours and gave me an 90GB zipped file. Running > cat sqldump.gz | gunzip | psql > into the 8.1 database seems to take about the same time. Are there > any tricks I can use to speed this dump+restore process up? > > The database contains quite alot of BLOB, thus the size. You could try slony - it can do almost-zero-downtime upgrades. Greetings Marcin Mank
