Opened 6 years ago

Closed 6 years ago

Last modified 5 years ago

#13216 closed (fixed)

Document the limitations on foreign keys and m2m relations across databases

Reported by: russellm Owned by: nobody
Component: Documentation Version: 1.1
Severity: Keywords:
Cc: Triage Stage: Accepted
Has patch: no Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: UI/UX:


Many of the people investigating the new multi-db functionality are coming back to django-users and django-dev asking why they can't have a foreign key to an object on a remote database. We need to specifically document that this isn't possible (and why it isn't possible).

Change History (4)

comment:1 Changed 6 years ago by russellm

  • Needs documentation unset
  • Needs tests unset
  • Patch needs improvement unset
  • Triage Stage changed from Unreviewed to Accepted

comment:2 Changed 6 years ago by russellm

  • Resolution set to fixed
  • Status changed from new to closed

(In [13178]) Fixed #13216 -- Added clarifying note about cross-database relations.

comment:3 Changed 5 years ago by galund

Don't necessarily want to reopen this ticket, but the documentation seems wrong. It appears to state that cross-database joins on MySQL with InnoDB are not possible, whereas in fact they are.

(So it is not surprising that many users might request this feature? - we'd certainly like it!)

comment:4 Changed 5 years ago by jacob

  • milestone 1.2 deleted

Milestone 1.2 deleted

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