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# Copyright (C) 2018 MongoDB Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3,
# as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# DatabaseVersion type
global:
cpp_namespace: "mongo"
imports:
- "mongo/idl/basic_types.idl"
structs:
DatabaseVersion:
description: "A (UUID, int) pair that uniquely identifies an incarnation of a database in a cluster and reflects changes to the database's primary shard"
# The generated comparison operators will do a field-wise lexicographic comparison, which
# doesn't work because it's nonsensical to lexicographically compare UUIDs.
generate_comparison_operators: false
strict: true
fields:
uuid:
type: uuid
description: "a unique identifier to distinguish different incarnations of this database"
lastMod:
type: int
description: "an integer which is bumped whenever the database's primary shard changes"
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