Support (offered by community volunteers) > Upgrading CiviCRM

1.6 > 1.7 database upgrade

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Dave Greenberg:

--- Quote from: fen on August 17, 2007, 11:29:37 am ---Thanks, Piotr - that appears to be it.  There are 15 sets of civicrm_contact reciords that have duplicate external_identifier values.

I'm editing them manually, but I wonder: might this column be a bit like the civicrm_uf_match table in that it could be NULLed out and it would re-create if/when necessary?

Thanks again!

--- End quote ---

Hi Fen - That field is never "auto-populated" or calculated by the software. As Piotr mentioned, it is intended to store a reference unique key from a source / related / legacy application. It is populated explicitly via Import or screen input. It is available as one of the alternative methods of matching importing transaction data to existing contacts (e.g. Import Contributions) - hence it is set up as a UNIQUE column. Hope that helps...

fen:
Thanks for all the replies and help.  I'm now happily running v1.8 stable!  :)

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