ml2 plugin is a havana feature. Currently securitygroups table are
created in chain of migration after havana release. It causes db
migration failure when migrating from havana to current head because
securitygroups table is attempted to be created although it was already
created by create_all().
Closes-bug: #
1271231
Change-Id: If450bd95de7a5fdfdb2219cfbf7eb0c1323044bb
"""security_groups
Revision ID: 49f5e553f61f
-Revises: ed93525fd003
+Revises: 27ef74513d33
Create Date: 2013-12-21 19:58:17.071412
"""
# revision identifiers, used by Alembic.
revision = '49f5e553f61f'
-down_revision = 'ed93525fd003'
+down_revision = '27ef74513d33'
# Change to ['*'] if this migration applies to all plugins
"""ryu plugin quota
Revision ID: 8f682276ee4
-Revises: 49f5e553f61f
+Revises: ed93525fd003
Create Date: 2014-01-07 15:47:17.349425
"""
# revision identifiers, used by Alembic.
revision = '8f682276ee4'
-down_revision = '49f5e553f61f'
+down_revision = 'ed93525fd003'
# Change to ['*'] if this migration applies to all plugins
"""havana
Revision ID: havana
-Revises: 1341ed32cc1e
+Revises: 49f5e553f61f
Create Date: 2013-10-02 00:00:00.000000
"""
# revision identifiers, used by Alembic.
revision = 'havana'
-down_revision = '27ef74513d33'
+down_revision = '49f5e553f61f'
# Change to ['*'] if this migration applies to all plugins