Azure Stream Analytics CreateOrReplace转换冲突或错误请求

我们目前正在通过Azure Stream Analytics将Azure事件中心的数据流传输到Cosmos DB。我希望能够通过编程更改数据流传输时完成的查询（/Transformation）

var existingQuery = AnalyticsClient.Transformations.Get(handler.ResourceGroup, handler.JobName, handler.JobName);

if (job.JobState == "Started")
        {
            AnalyticsClient.StreamingJobs.BeginStopAsync(handler.ResourceGroup, handler.JobName).Wait();
        }
        var transformation = new Transformation()
        {
            Query = $@"SELECT 
                        [key] as partition_key
                    INTO[{outputName}]
                    FROM Input",
            StreamingUnits = 1
        }; 
AnalyticsClient.Transformations.CreateOrReplace(transformation, handler.ResourceGroup, handler.JobName, handler.JobName);

-转换显示为空

不清楚转换的默认名称可能是什么，但试图从作业中获取转换（与作业同名）：

{
    "code": "NotFound",
    "message": "StreamAnalytics_Prototype_2 does not exist in Stream Analytics job 'StreamAnalytics_Prototype_2' in resource group 'removed' in subscription 'removed'.",
    "details": {
        "code": "404",
        "message": "StreamAnalytics_Prototype_2 does not exist in Stream Analytics job 'StreamAnalytics_Prototype_2' in resource group 'removed' in subscription 'removed'.",
        "correlationId": "removed",
        "requestId": "removed"
    }
}

尝试创建转换：

{
    "code": "BadRequest",
    "message": "The number of transformations defined for this job exceeds the maximum limit of 1 that is supported.",
    "details": {
        "code": "400",
        "message": "The number of transformations defined for this job exceeds the maximum limit of 1 that is supported."
    }
}

---

如果您从Azure portal创建转换，则转换的默认名称为“transformation”。如果从SDK创建转换，则需要在代码中指定名称

streamAnalyticsManagementClient.Transformations.CreateOrReplace(transformation, resourceGroupName, streamingJobName, transformationName);

顺便说一下，在添加了来自Azure portal的查询后，我从活动日志中找到了默认转换名称

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非常感谢；这也很有用：var streamingjob=AnalyticsClient.StreamingJobs.Get（ResourceGroup，JobName，“transformation”）；我还有一个名为script的查询流（我假设一个开发人员通过.net创建了它），我可以通过活动日志中的上述方法进行检查。