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[Al Miller <al.miller@xxxxxxxxxxxx>]

Public bug reported:

Starting in MySQL 5.6, it is illegal to alter a column that is subject
to a Foreign Key constraint, and any migration doing such will fail.
Other projects (I have found examples in Barbican and Trove) work around
this by removing the constraint, performing the ALTER, and reinstating
the constraint.

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1544349

Title:
  neutron-vpnaas db migration breaks in MySQL 5.6

Status in neutron:
  New

Bug description:
  Starting in MySQL 5.6, it is illegal to alter a column that is subject
  to a Foreign Key constraint, and any migration doing such will fail.
  Other projects (I have found examples in Barbican and Trove) work
  around this by removing the constraint, performing the ALTER, and
  reinstating the constraint.

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