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Key: CORE-2445
Type: Improvement Improvement
Status: Open Open
Priority: Major Major
Assignee: Unassigned
Reporter: Cosmin Apreutesei
Votes: 11
Watchers: 7
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Firebird Core

Deferred constraints

Created: 30/Apr/09 05:00 PM   Updated: 03/Apr/15 11:09 AM
Component/s: None
Affects Version/s: None
Fix Version/s: None


 Description  « Hide
Implement commit-time constraint checking as per SQL specification.

It was on the 2006 roadmap for fb 3.0 but I can't find it on the tracker.

A few use cases:
  - allow foreign-key/not null-constrained back-references
  - switch two values from the same uniquely-constrained set with UPDATE instead of DELETE + INSERT
 ... add your own...



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