Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-48897

Allow sub-field matching in Wildcard indexes

XMLWordPrintableJSON

    • Type: Icon: Improvement Improvement
    • Resolution: Unresolved
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 4.2.7
    • Component/s: None
    • Labels:
    • Query Optimization

      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)

       

            Assignee:
            backlog-query-optimization [DO NOT USE] Backlog - Query Optimization
            Reporter:
            chad@onspring.com Chad Kreimendahl
            Votes:
            1 Vote for this issue
            Watchers:
            6 Start watching this issue

              Created:
              Updated: