[ZODB-Dev] ZODB4 project plan

[Jeremy Hylton]

>>>>> "ML" == Magnus Lycka <magnus@thinkware.se> writes:

  ML> There is still a conceptual problem concerning ACID properties
  ML> and undo beyond someone elses commit. Another user might have
  ML> made a changed that didn't affect my object, but his changed
  ML> might have been prompted by his observation of the change I
  ML> made.  Then I undo, and his actions are now based on something
  ML> that "never happened".

In general, ZODB doesn't do a good job of tracking read dependencies.
Undo isn't the only problem here.  Plain old writes have the same
problem.

Adding optional support for stronger isolation is on the ZODB4 project
list, but it's a fairly low priority.

Jeremy