Обсуждение: pg_dump of a v8.3.4 -> v9.0.1
Hi:
I have a pg_dump pf a v8.3.4 DB that I would like to bring into a v9.0.1 PG instance. What is the best way to do this? Note, the dump file is too big to fit into an editor, but I could sed it if need be.
Thanks.
On 11/23/2011 08:08 AM, Gauthier, Dave wrote: > Hi: > > I have a pg_dump pf a v8.3.4 DB that I would like to bring into a v9.0.1 > PG instance. What is the best way to do this? Note, the dump file is too > big to fit into an editor, but I could sed it if need be. Did you do the data dump using the 8.3.4 version of pg_dump or the 9.0.1? If you used the newer version the dump format should not cause you any problems. What you will need to do is read the release notes for the version 8.4 and 9.0 for any changes that may affect your data once it is in the database. > > Thanks. > -- Adrian Klaver adrian.klaver@gmail.com
I used pg_dump v 8.3.4, but I could rerun using v9.0.1. I was thinking that pg_dump v9 would refuse to play right with thev8 DB. Is that a false assumption? -----Original Message----- From: Adrian Klaver [mailto:adrian.klaver@gmail.com] Sent: Wednesday, November 23, 2011 11:48 AM To: Gauthier, Dave Cc: pgsql-general@postgresql.org Subject: Re: [GENERAL] pg_dump of a v8.3.4 -> v9.0.1 On 11/23/2011 08:08 AM, Gauthier, Dave wrote: > Hi: > > I have a pg_dump pf a v8.3.4 DB that I would like to bring into a v9.0.1 > PG instance. What is the best way to do this? Note, the dump file is too > big to fit into an editor, but I could sed it if need be. Did you do the data dump using the 8.3.4 version of pg_dump or the 9.0.1? If you used the newer version the dump format should not cause you any problems. What you will need to do is read the release notes for the version 8.4 and 9.0 for any changes that may affect your data once it is in the database. > > Thanks. > -- Adrian Klaver adrian.klaver@gmail.com
On 11/23/2011 08:50 AM, Gauthier, Dave wrote: > I used pg_dump v 8.3.4, but I could rerun using v9.0.1. I was thinking that pg_dump v9 would refuse to play right withthe v8 DB. Is that a false assumption? > Yes. http://www.postgresql.org/docs/9.0/interactive/app-pgdump.html "Because pg_dump is used to transfer data to newer versions of PostgreSQL, the output of pg_dump can be expected to load into PostgreSQL server versions newer than pg_dump's version. pg_dump can also dump from PostgreSQL servers older than its own version. (Currently, servers back to version 7.0 are supported.) However, pg_dump cannot dump from PostgreSQL servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. Also, it is not guaranteed that pg_dump's output can be loaded into a server of an older major version — not even if the dump was taken from a server of that version. Loading a dump file into an older server may require manual editing of the dump file to remove syntax not understood by the older server. " >> Thanks. >> > > -- Adrian Klaver adrian.klaver@gmail.com