Tom Lane 25d9bf2e3e Support deferrable uniqueness constraints. ...

The current implementation fires an AFTER ROW trigger for each tuple that
looks like it might be non-unique according to the index contents at the
time of insertion.  This works well as long as there aren't many conflicts,
but won't scale to massive unique-key reassignments.  Improving that case
is a TODO item.

Dean Rasheed

2009-07-29 20:56:21 +00:00

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