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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: None
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Component/s: None
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None
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Fully Compatible
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Query 2020-02-10, Query 2020-02-24, Query 2020-03-09
Specifically if the cache on mongos for the union'ed collection is stale, the $unionWith should retry it's sub-pipeline only instead of the entire base aggregation.
- causes
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SERVER-57483 Results from $lookup stage are not cached for a resharding operation's sub-pipeline
- Closed
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SERVER-57579 DocumentSourceSequentialCache doesn't clone, ruining non-correlated $lookup pipeline caching in sharded deployments
- Closed
- depends on
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SERVER-45526 Support union with sharded collections
- Closed
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SERVER-45838 Rename/restructure mongo_process_interface classes/files
- Closed
- is depended on by
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SERVER-45712 Remove flag guard for $unionWith
- Closed
- is duplicated by
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SERVER-38758 Avoid restarting $lookup from the top if a stale version error is encountered during a single lookup
- Closed
- is related to
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SERVER-38758 Avoid restarting $lookup from the top if a stale version error is encountered during a single lookup
- Closed