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Classcast error while using CosmosDB query with COUNT and VALUE

See original GitHub issue

Hi!

I use Java to write a function that reads data from a CosmosDB instance. I encounter a problem when I use a query like SELECT VALUE COUNT(1) FROM Messages m.

I get a class cast exception: System.Private.CoreLib: Exception while executing function: Functions.ReadDevicesLastSeenHistogram. Anonymously Hosted DynamicMethods Assembly: Unable to cast object of type ‘Newtonsoft.Json.Linq.JValue’ to type ‘Newtonsoft.Json.Linq.JObject’.

I am using version 3.0.3 of the CosmosDB extension.

Repro steps

    @FunctionName("ReadDevicesLastSeenHistogram")
    public HttpResponseMessage readDevicesLastSeenHistogram(@HttpTrigger(name = "req",
            methods = {HttpMethod.GET},
            route = "statistics/lastSeenHistogram",
            authLevel = AuthorizationLevel.ANONYMOUS) HttpRequestMessage<Optional<Void>> request,
            @CosmosDBInput(name="databaseAll",
                    databaseName = "IoTMessagesDatabase",
                    collectionName = "DevicesLastDocumentCollection",
                    connectionStringSetting = "siriusiotdb_DOCUMENTDB",
                    partitionKey = "/deviceId",
                    sqlQuery = "SELECT VALUE COUNT(1) FROM Messages m") String allCount,
            @CosmosDBInput(name="databaseMinus1",
                    databaseName = "IoTMessagesDatabase",
                    collectionName = "DevicesLastDocumentCollection",
                    connectionStringSetting = "siriusiotdb_DOCUMENTDB",
                    partitionKey = "/deviceId",
                    sqlQuery = "SELECT VALUE COUNT(1) FROM Messages m WHERE m._ts>udf.timestampMinusDays(1)") String dayCount){
        Map<String,Long> result=new HashMap<>();

        result.put("all",Long.valueOf(allCount));
        result.put("1day",Long.valueOf(dayCount));

        return request.createResponseBuilder(HttpStatus.OK).body(result).build();
    }

Expected behavior

No class cast error.

Actual behavior

System.Private.CoreLib: Exception while executing function: Functions.ReadDevicesLastSeenHistogram. Anonymously Hosted DynamicMethods Assembly: Unable to cast object of type ‘Newtonsoft.Json.Linq.JValue’ to type ‘Newtonsoft.Json.Linq.JObject’