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[Bug 1194106] Re: db.utils.create_shadow_table() doesn't work if we have table with Enum column

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Sean Dague <sean@xxxxxxxxx>
Date: Mon, 30 Mar 2015 13:36:40 -0000
Reply-to: Bug 1194106 <1194106@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

This code isn't in nova any more, moving to oslo.db

** Also affects: oslo.db
   Importance: Undecided
       Status: New

** Changed in: nova
       Status: Triaged => Invalid

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https://bugs.launchpad.net/bugs/1194106

Title:
  db.utils.create_shadow_table() doesn't work if we have table with Enum
  column

Status in OpenStack Compute (Nova):
  Invalid
Status in Oslo Database library:
  New

Bug description:
  
  In postgres we are not able to create two times Enum with the same name.

  So If we try to make a shadow table for table we will get exception
  that Enum with the same name already exists.

  So we should rename our Enum. 
  I think that shadow_prefix + original_name will be good convention.

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