Details
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Improvement
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Resolution: Unresolved
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Major - P3
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None
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3.2.0-rc2
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Query Optimization
Description
The $lookup stage currently does one query per input document, which can introduce a significant amount of overhead if there are few results. Instead, the $lookup stage should batch up a couple documents and query for their results all at once.
Attachments
Issue Links
- is duplicated by
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SERVER-64021 Lookup stage poor performance
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- Closed
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- is related to
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SERVER-49461 Slow performance when doing lookup in small sets
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- Closed
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- related to
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SERVER-21284 $lookup should cache query results
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- Backlog
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