python-migrate is broken with PostgreSQL and SQLAlchemy 0.8

[Impact]
Glance is broken when used with a PostgreSQL database.

[Test Case]
sudo apt-get install glance postgresql
* create PostgreSQL database for glance and configure glance
sudo glance-manage sync_db

[Regression Potential]
Fix now accepted upstream and in the version in trusty; also in fedora packages for migrate. Limited regression potential.

[Original Bug Report]
The problem occurs when trying to run 'glance-manage sync_db' with a PostgreSQL database.

This was reported to the Fedora BTS at https://bugzilla.redhat.com/show_bug.cgi?id=969702 . At least Glance is impacted, while Keystone is not. I can confirm that rebuilding the current version of migrate in the cloud-archive repository (0.7.2-6~cloud0) with the patch attached to comment #7 on the thread linked above resolves the issue. Please let me know if you need any additional information.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: python-migrate 0.7.2-6~cloud0 [origin: Canonical]
ProcVersionSignature: Ubuntu 3.2.0-57.87-virtual 3.2.52
Uname: Linux 3.2.0-57-virtual x86_64
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
CrashDB: cloud_archive
Date: Mon Dec 16 23:33:11 2013
InstallationMedia: Ubuntu-Server 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130214)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: migrate
UpgradeStatus: No upgrade log present (probably fresh install)