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Type: Bug
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Resolution: Duplicate
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Priority: Major - P3
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None
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Affects Version/s: 3.0.2
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Component/s: Querying
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None
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ALL
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Querying for null values looks like it is filtering records with fetch before hitting the index, even when the null field is part of the index.
This stack overflow question seems to be related:
- duplicates
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SERVER-18653 Answering "equality to null" predicates with an index requires a FETCH stage
- Closed