使用属性名称中的句点过滤自定义维度

Question

在 this guide 之后，我看到了如何根据自定义维度进行过滤，但我如何在有“.”时进行过滤在键 / 属性 name?

例如，我想根据此自定义维度值过滤 ServiceFabric.ServiceTypeName：

{
    "AspNetCoreEnvironment": "Production",
    "ServiceFabric.ApplicationTypeName": "MyCompany.MyAppType",
    "ServiceFabric.ServiceTypeName": "MyService",
    "ServiceFabric.ApplicationName": "fabric:/MyCompany.MyApp",
    "ServiceFabric.PartitionId": "some-guid",
    "ServiceFabric.ServiceName": "fabric:/MyCompany.MyApp/MyService",
    "ServiceFabric.InstanceId": "55555",
    "ServiceFabric.NodeName": "my-node",
    "CategoryName": "Microsoft.AspNetCore.Hosting.Internal.WebHost",
    "Protocol": "HTTP/1.1",
    "Host": "MyCompany.com",
    "Method": "GET",
    "Scheme": "https",
    "Path": "/api/values"
}

以下无效...

traces
| extend type = customDimensions.ServiceFabric.ApplicationTypeName
| where type == "MyCompany.MyAppType"
| order by timestamp  desc

Answer 1

具有特殊含义的名称的语法是：

customDimensions["ServiceFabric.ApplicationTypeName"]

您也可以使用方括号+引号来命名列：

| extend ["This is a column with spaces"] = blah

或

| project-rename ["Name with space"] = name

来自：https://docs.loganalytics.io/docs/Learn/References/Naming-principles

Entity names that include special characters must be quoted using [' and '] or using [" and "]

Entity names that are language keywords must be quoted quoted using [' and '] or using [" and "]

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