29 lines
1.2 KiB
Python
29 lines
1.2 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from sqlalchemy import MetaData, Column, Table
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from sqlalchemy import Boolean
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def upgrade(migrate_engine):
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meta = MetaData(bind=migrate_engine)
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for prefix in ('', 'shadow_'):
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instances = Table('%sinstances' % prefix, meta, autoload=True)
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if not hasattr(instances.c, 'hidden'):
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# NOTE(danms): This column originally included default=False. We
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# discovered in bug #1862205 that this will attempt to rewrite
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# the entire instances table with that value, which can time out
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# for large data sets (and does not even abort).
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hidden = Column('hidden', Boolean)
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instances.create_column(hidden)
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