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Type:
Task
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: 8.3.0-rc0
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Component/s: Catalog, Replication, Upgrade/Downgrade
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Catalog and Routing
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Fully Compatible
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CAR Team 2025-12-08, CAR Team 2025-12-22, CAR Team 2026-01-05
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🟦 Shard Catalog
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Building upon SERVER-114830, implement basic upgrade/downgrade support between viewful and viewless timeseries at the replica set level.
- Replication of upgrade/downgrade in the oplog via a custom 'c' entry - this allows secondaries to apply to upgrade/downgrade atomically.
- Integration into setFCV.
The goal of this ticket is to provide a targeted multiversion test that can upgrade/downgrade a timeseries collection.
Further test enablement will be done by follow up tickets because many operations (e.g. drop, timeseries read & write path, jstests themselves) do not expect the timeseries format to change mid-operation and will need to be fixed.
- depends on
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SERVER-114543 CollectionCatalog can't replace a collection with a view in the same WriteUnitOfWork
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- Closed
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- Closed
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- is related to
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- Closed
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- Closed
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- related to
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- Open
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- Backlog
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- In Progress
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- Closed
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