On 9/8/16 4:55 AM, Emre Hasegeli wrote:
The main problem that has been discussed before was the indexes.  One
way is to tackle with it is to reindex all the tables after the
operation.  Currently we are doing it when the datatype of indexed
columns change.  So it should be possible, but very expensive.


Why not just disallow dropping a value that's still in use? That's certainly what I would prefer to happen by default...
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Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
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