Details
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Improvement
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Status: Closed
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Major - P3
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Resolution: Duplicate
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None
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None
Description
In some cases the query optimizer may determine that a query cannot match any documents. In these cases it will generate a trivial BasicCursor that will scan zero documents. Explain will report using this BasicCursor, which can be a usability issue as seen in SERVER-4317.
Attachments
Issue Links
- is duplicated by
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SERVER-8688 Explain output should include index spec
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- Closed
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- is related to
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SERVER-4317 index not used when argument to $in is empty array
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- Closed
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