Обсуждение: Upgrading PG

On Monday 01 October 2007, "Gauthier, Dave" <dave.gauthier@intel.com> wrote:
> I'm going to move from v7.4.13 to v8.2.0 (suse-64). I have 2
> pre-existing DBs.  Do I need to "convert" or port them to v8 in any way
> after I start up with a v8 postmaster?
>

All major version upgrades require a dump and reload. You should read all
the update notes for intermediate versions.

You may also run into some bad-unicode data issues moving from 7.4 to 8.x. I
would do a test run on a separate machine before committing to a conversion
date (always a good idea IMO).

--
Ghawar is dying

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Gauthier, Dave wrote:
> I'm going to move from v7.4.13 to v8.2.0 (suse-64). I have 2
> pre-existing DBs.  Do I need to "convert" or port them to v8 in any way
> after I start up with a v8 postmaster?
>

1. v8.2.0 is a mistake, make sure you are running the latest stable
patch rev. v8.2.5.

2. You will need to dump and reload, use the v8.2.5 pg_dump to connect
to the v7.4.13 databases and restore.

3. There are specific behavior differences. The one that comes to mind
most prominently is that float/double can no longer be ''.

4. Read the release notes from the docs

5. 8.2 is a completely different beast in terms of performance and
configuration.

Sincerely,

Joshua D. Drake



>
> Thanks
>
> -dave
>
>


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On Oct 1, 2007, at 12:26 PM, Gauthier, Dave wrote:

> I’m going to move from v7.4.13 to v8.2.0 (suse-64). I have 2 pre-
> existing DBs.  Do I need to “convert” or port them to v8 in any way
> after I start up with a v8 postmaster?
>
>
> Thanks

Moving between major release versions requires that you do a dump/
restore using the new version's pg_dump and pg_restore apps.

Erik Jones

Software Developer | Emma®
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