Re: restore a pg_dumpall only breaks

I figure the best thing to do is to upgrade postgres 8.4 (not 8.1 as previously mentioned) to 9.2 on this centOS6.4
server,so it's version matches the other server. I searched for some time on how to do this and every tutorial does it
alittle different and each has different steps that the others do not have. Is there a clear step by step procedure to
dothis upgrade? 

Thanks

-----Original Message-----
From: Tom Lane [mailto:tgl@sss.pgh.pa.us]
Sent: Wednesday, November 23, 2016 6:05 PM
To: Marc Fromm <Marc.Fromm@wwu.edu>
Cc: pgsql-admin@postgresql.org
Subject: Re: [ADMIN] restore a pg_dumpall only breaks

Marc Fromm <Marc.Fromm@wwu.edu> writes:
> If I use the command "pg_dumpall -c -U postgres | gzip > pg_dbs.gz" to create a backup of all databases from
"postgresql9.2" and then restore it to "postgresql 8.1" on a different server only about the first half of the
databasesare restored with their tables and records. The second half, only the databases themselves are created but
withno tables and no records. 

A dump from 9.2 is no sure thing to restore into an 8.1 database; there may be SQL syntax in it that 8.1 doesn't
understand. Have you checked for errors during the restore? 

            regards, tom lane