如何在Azure流分析中检索自定义事件名称

Question

I created a custom event that is tracked by Azure Application Insights. It has a few custom data properties I am able to successfully track, as well as 2 custom event properties of interest (one of which I cannot display).

The one I cannot successfully query is the event name. I'm trying to reference it in the query by using event.name, but it's returning null for all records, even though I know for sure the names are not actually null.

If anyone knows the proper way to query the custom event's name, please let me know! I can't find it on: https://docs.microsoft.com/en-us/azure/application-insights/app-insights-export-data-model

Answer 1

The issue here is name is in an array, so event.name returns NULL since it doesn't exist.

Will you always have only 1 name in this array? If so the following query will extract that value:

SELECT GetRecordPropertyValue(GetArrayElement(event, 0),'name')  as eventName from input

If you have various names, the query will depend of the logic (hence the suggestion to use CROSS APPLY).