This is meant to be a targeted improvement specific to $lookup, though depending on the implementation it could affect other commands which use sharded_agg_helpers::attachCursorToPipeline, similar to SERVER-58376. When this work is done, we would expect to see improvement especially for $lookups where the local and foreign data is co-located (see workloads from PERF-4152)
- causes
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SERVER-81335 Query operations that avoid going through the network when a shard is targeting only itself should create a fresh operation context
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- Open
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- Closed
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SERVER-80341 sharded_agg_helpers::attachCursorToPipeline should not attach dbVersion when targeting local shard by routing table
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- Closed
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- is duplicated by
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- Closed
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- related to
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- Closed
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