Niblett, David A wrote:
> Gee, and I was just working on extracting the relevant queries
> from the 2.1 code so that I might just do that very thing. :)
> 
> I'm looking at a php script right now to do this right now. So
> since it's in your head I'll try some extraction.
> 
> 1) When you mention the "date" I assume you are using the Date
> field from the header?

Don't do that. Use internal_date in physmessages. Don't trust the Date
field.

> 
> 2) The SQL statement:
> 
>   select is_header,messageblk from dbmail_messageblks b
>   join dbmail_messages m using (physmessage_id)
>   where message_idnr in (xxxxxxx);
> 
> Seems to be valid in the older 2.0 train.  Can you see any reason
> why that might not work?
> 
> 3) I believe the mbox format only requires:
> 
>   From: <[EMAIL PROTECTED]>
>   <insert complete header here>
>   <insert message body here>
>   <explicit \r\n empty line>
>   From: <[EMAIL PROTECTED]>
>   etc...

Wrong. Use

>From senderaddress internaldate

as the first line. So no colon!


> 
> Doing that output looks pretty easy, so the last question is
> how would I import that back in should I have to restore a user?

cat dump.mbox | formail -ds dbmail-smtp -u username -m mailbox

or use the import utility in contrib.

Please note however, that the import in 2.0 is somewhat broken in that
it doesn't respect the internal date in the From_ header, which means
all imported messages will have an internal date set to the time of
import. This was fixed in 2.1.

> 4) I'm guessing it would be simpler to export the data as SQL
> for a direct insert, but I expect the problem is that if the
> user_idnr changes your are pretty well screwed.  Plus the mbox
> format is probably as small as it gets on the export correct?

Yep. You will run into serious problems with the primary keys on all
relevant tables.


-- 
  ________________________________________________________________
  Paul Stevens                                      paul at nfg.nl
  NET FACILITIES GROUP                     GPG/PGP: 1024D/11F8CD31
  The Netherlands________________________________http://www.nfg.nl

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