Comment 12 for bug 1738094

Reviewed: https://review.openstack.org/528012
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=40d74339082fe0eb1ce9216e89cf6e65a39e6968
Submitter: Zuul
Branch: master

commit 40d74339082fe0eb1ce9216e89cf6e65a39e6968
Author: Artom Lifshitz <email address hidden>
Date: Thu Dec 14 11:56:47 2017 -0500

    Make request_spec.spec MediumText

    request_spec.instance_group.members is a list of instance UUIDs. It
    can get so long that it overflows its TEXT column. This patch changes
    request_spec.spec to MEDIUMTEXT.

    Change-Id: I6bf0fa19b72887803e77b66698587c2108c9372a
    Closes-bug: 1738094