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["Stefan Rijnhart \(Therp\)" <question232370@xxxxxxxxxxxxxxxxxxxxx>]

Question #232370 on OpenUpgrade Addons changed:
https://answers.launchpad.net/openupgrade-addons/+question/232370

    Status: Open => Answered

Stefan Rijnhart (Therp) proposed the following answer:
Hi Sylvain,

thank you for your analysis!

A lot of foreign key constraints in 6.1 on 'mail_message' are still
valid in 7.0, such as on the following models, I believe mostly due to
_inherits of 'mail.thread':

 crm.claim
 crm.helpdesk
 crm.lead
 crm.meeting
 crm.phonecall
 event.registration
 event.registration
 hr.applicant
 mail.thread
 project.issue
 project.task
 res.partner

Only fetchmail.server has moved to 'mail.mail', which as you note
inherits mail.message.

How about leaving the 'mail.message' table as it is, for that reason?
You could prefix all the obsolete columns with
openupgrade.get_legacy_name(). The migration script for the fetchmail
module should eventually migrate those fields to new entries in the
mail_mail table for its retrieved emails. Indeed, 'res.log' and notes on
various models are to be recreated as 'mail.mail' entries.

Cheers,
Stefan.

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