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Type:
Improvement
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Resolution: Unresolved
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Priority:
Major - P3
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None
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Affects Version/s: 4.2.7
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Component/s: None
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Query Optimization
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Allow for the simple creation of a wildcard index that indexes specific patterns below the wildcard:
db.collection.createIndex(
{ "FieldHolder.$**.SearchSort": 1 }
)
To capture only the SearchSort fields in an example like this:
{
FieldHolder: {
Field1: {
Meta: { Some: "Metadata we dont want to index" },
More: { Metadata: "we don't want to index"},
Value: "Some Value",
SearchSort: "some value"
},
Field2: {
Meta: { Some: "Metadata we dont want to index" },
More: { Metadata: "we don't want to index"},
Value: 1,
SearchSort: "1",
},
Field3....
}
}
This would also more easily allow the implementation of non-sparse indexing on wildcards, where you could forcibly assume the existence of some field (SearchSort in this case)
- related to
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SERVER-267 Wildcard support in index/query/projection
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- Backlog
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SERVER-44558 wildcardProjection not available for subtrees
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- Backlog
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