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Thread: Re: Converting from PostgreSQL to MySQL




Re: Converting from PostgreSQL to MySQL
country flaguser name
Netherlands
2007-07-22 13:32:45
David Leinbach wrote:
> I didn't even know that script existed.  I had written
something quite
> similar though to try and convert it but no luck with
the headers.  I

The headers are not essential for a migration, they can be
reconstructed
 using a single 'dbmail-util -by' run.

The core tables you need for a migration are:
dbmail_users
dbmail_aliases
dbmail_mailboxes
dbmail_messages
dbmail_physmessage
dbmail_messageblks

It's the dbmail_messageblks table that gives problems when
moving from
mysql to pgsql where it strands on encoding issues. If you
succeed in
migrating above tables, you should be home free.


> think I will try running the two imap servers side by
side and use
> imapsync and see if that works any better.

Yes. imapsync will migrate pretty much any imapserver to any
imapserver.
> 
> Thanks
> 
> On 7/21/07, Paul J Stevens <paulnfg.nl> wrote:
>> David,
>>
>> have you tried it following the example in
>> contrib/sql2sql/pgsql2mysql.sh ?
>>
>>
>>
>>
>> David Leinbach wrote:
>> > Hi,
>> >
>> > I have been running DBMail against a
PostgreSQL database for a few
>> > years now and have been pretty impressed. 
However, in an effort to
>> > simply things, I would like to switch to MySQL
since I have to have
>> > MySQL for some of the other stuff I am running
but DBMail is the only
>> > thing on the PostgreSQL database.  Has anyone
done this?
>> >
>> > I tried doing a straight SQL dump and insert
into the MySQL database
>> > but had issues with the message bodies and
headers now showing up.
>> >
>> > Thanks,
>> >
>> > David
>> >
_______________________________________________
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ps://mailman.fastxs.nl/mailman/listinfo/dbmail
>> >
>>
>>
>> -- 
>>  
____________________________________________________________
____
>>   Paul Stevens                                     
paul at nfg.nl
>>   NET FACILITIES GROUP                     GPG/PGP:
1024D/11F8CD31
>>   The Netherlands________________________________http://www.nfg.nl
>> _______________________________________________
>> DBmail mailing list
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>> htt
ps://mailman.fastxs.nl/mailman/listinfo/dbmail
>>
> _______________________________________________
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> DBmaildbmail.org
> htt
ps://mailman.fastxs.nl/mailman/listinfo/dbmail
> 


-- 
 
____________________________________________________________
____
  Paul Stevens                                      paul at
nfg.nl
  NET FACILITIES GROUP                     GPG/PGP:
1024D/11F8CD31
  The Netherlands________________________________http://www.nfg.nl
_______________________________________________
DBmail mailing list
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htt
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