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Type: New Feature
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Resolution: Done
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Priority: Major - P3
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None
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Affects Version/s: None
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Component/s: None
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None
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Execution Team 2021-08-09
Compound indexes build off the ascending and descending indexes idea. A createIndexes command on a time-series collection measurement field:
{ createIndexes: “abc”, indexes: [ { key: { a : 1, b : 1 } } ] }
will be equivalent to the following operation on the underlying buckets collection:
{ createIndexes: “system.buckets.abc”, indexes: [ { key: { control.max.a : 1, control.min.a : 1, control.max.b : 1, control.min.b : 1 } } ] }
Additionally, a createIndexes command on a time-series collection measurement field with both ascending and descending options:
{ createIndexes: “abc”, indexes: [ { key: { a : 1, b : -1 } } ] }
will be equivalent to the following operation on the underlying buckets collection:
{ createIndexes: “system.buckets.abc”, indexes: [ { key: { control.max.a : 1, control.min.a : 1, control.min.b : -1, control.max.b : -1 } } ] }
- related to
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SERVER-58057 Support ascending and descending indexes on time-series measurements
- Closed