Kusto 查询以按总数的百分比显示摘要

Question

我正在尝试以总数的百分比获取失败的摘要，请参阅下面的查询。这很好，但我希望它向我展示Vendor1=0.5 和 Vendor2=0.5（50% 失败），而不仅仅是Vendor1=1（一个失败为 0），Vendor2=2（两个失败为 0）

datatable (Vendor:string, failure:int)
    ["Vendor1",3,
    "Vendor2",0,
    "Vendor2",0,
    "Vendor2", 7,
    "Vendor1",0,
    "Vendor2", 1]
| where failure == 0    
| summarize Failures=count() by Vendor

Answer 1

请检查下一个查询是否解决了您的情况：

datatable (Vendor:string, failure:int)
    ["Vendor1",3,
    "Vendor2",0,
    "Vendor2",0,
    "Vendor2", 7,
    "Vendor1",0,
    "Vendor2", 1]   
| summarize Failures=countif(failure == 0), Total=count() by Vendor
| extend Result=Failures*1.0/Total

Answer 2

@Alexander Sloutsky 的答案略有不同：

datatable (Vendor:string, failure:int)
    ["Vendor1",3,
    "Vendor2",0,
    "Vendor2",0,
    "Vendor2", 7,
    "Vendor1",0,
    "Vendor2", 1]   
| summarize Result = 1.0*countif(failure==0)/count() by Vendor

演示