The proprietary matching entry count request control may be included in a search request to indicate that instead of returning the set of matching entries, it should instead return a result with a response control that provides an estimate of the number of matching entries, along with potential debug information describing how the server used indexes to arrive at that result. The control has an OID of, and it takes a value. The following fields may be present in the value-json representation of the value:

The following sample shows the JSON encoding for the control:

    "control-name":"Matching Entry Count Request Control",
    "value-json": {