Kusto 查询 - 按扩展列排序答案

【问题标题】：Kusto query - sorting by extended columnKusto 查询 - 按扩展列排序
【发布时间】：2020-11-17 08:46:04
【问题描述】：

应如何调整 Kusto 对计数的查询以显示按“名称”正确顺序排序的结果 - 此处不适合按字母排序，因为“名称”值的实际顺序是步骤 F -> 步骤 W -> 步骤 B等。似乎我应该将“名称”映射到扩展列“数字”，如然后按此列添加排序。

timestamp                     name      count
=== ========= ====
01/01/2020, 12:00:00.000 AM   Step W      55
01/01/2020, 12:00:00.000 AM   Step B      44
01/01/2020, 12:00:00.000 AM   Step F      33
01/01/2020, 12:00:00.000 AM   Step D      10

请帮助调整查询：

tablename 
| where name == "Step D"
or name == "Step F"
or name == "Step B"
or name == "Step W"
| summarize count() by name, bin(timestamp, 1d)

【问题讨论】：

标签： azure-data-explorer

【解决方案1】：

如果我理解正确，您对这样的事情感兴趣：

let weights = dynamic({"Step F":1, "Step W":2, "Step B": 3, "Step D":4});
datatable(timestamp:datetime, name:string, count:int)
[
    datetime(01/01/2020 12:00:00.000 AM), 'Step W', 55,
    datetime(01/01/2020 12:00:00.000 AM), 'Step B', 44,
    datetime(01/01/2020 12:00:00.000 AM), 'Step F', 33,
    datetime(01/01/2020 12:00:00.000 AM), 'Step D', 10,
]
| order by toint(weights[name]) asc

或者，根据您的查询：

let weights = dynamic({"Step F":1, "Step W":2, "Step B": 3, "Step D":4});
tablename 
| where name in("Step D", "Step F", "Step B", "Step W")
| summarize count() by name, bin(timestamp, 1d)
| order by toint(weights[name]) asc

【讨论】：