Re: [Sqlalchemy-tickets] [sqlalchemy] #2765: Cascading with "delete-orphan" will insert new children, before deleting removed children, causing unique constraint violations

[sqlalchemy <mi...@zz...>]

#2765: Cascading with "delete-orphan" will insert new children, before deleting
removed children, causing unique constraint violations
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      Reporter:          |      Owner:  zzzeek
  logandk                |     Status:  closed
          Type:  defect  |  Milestone:
      Priority:  medium  |   Severity:  no triage selected yet
     Component:  orm     |   Keywords:  orm,delete,orphan,unique,constraint
    Resolution:          |
  duplicate              |
Progress State:          |
  completed/closed       |
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Comment (by zzzeek):

 a new proof of concept illustrating the basic idea for UOW changes has
 been attached to #2501.  It takes stock of the basic mechanics we'd have
 to use in order to achieve this.

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Ticket URL: <http://www.sqlalchemy.org/trac/ticket/2765#comment:2>
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