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Type: New Feature
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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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Labels:None
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Fully Compatible
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Execution Team 2021-08-09
When building an index with theĀ { sparse : true } option, only documents that have the indexed field present will have any index entries, even if the indexed field contains a null.
If a time-series buckets control field contains information about the indexed field, then at least one measurement contains the indexed field and the bucket will be indexed. Vice-versa, if no measurements contain the indexed field, then there will be no information in the control field and the bucket will not be indexed.