On 11/26/2012 07:15 PM, Merlin Moncure wrote:
I don't think you need a CTE or a loop unless you want to delete the
old rows.  Why not (hard to say exactly how it will work):
INSERT INTO a(old_id, new_id, ...)
SELECT id, new_id(), ...
from a;
?


Well, the table A, in which I'm copying rows, does not have old_id, new_id, just a primary key, so the idea is to link original pkey and new pkey separately. Adding new_id to the table is not an option, besides what would new_id() stand for?

But thanks for the suggestion.



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