23 lines
1.1 KiB
Python
23 lines
1.1 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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def upgrade(migrate_engine):
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# A migration here is not needed because the actual marshalling of data
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# from the old column to the new column is done in the contract phase. This
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# is because using triggers to convert datetime objects to integers is
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# complex and error-prone. Instead, we'll migrate the data once all
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# keystone nodes are on the Queens code-base. From an operator perspective,
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# this shouldn't affect operability of a rolling upgrade since all nodes
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# must be running Queens before the contract takes place.
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pass
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