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Pie Chart Visualization Help

Jon.Haldiman
Creator

Pie Chart Visualization Help

Hello,

 

I have made a data collector to capture a specific header value, and I'm attempting to make a pie chart to track the amount of requests that come through without the header vs. the amount of requests that come through with the header.  I was able to make a query that displays the information in a way that I want it, however, when I use the pie chart visualization the records that are null are not displayed in it.

 

The query I'm using looks like this:

SELECT substring(segments.httpData.headers.`x-forwarded-host`, 1, 12), count(*) FROM transactions WHERE application = "System Agent API"

 

The table view of the results appear like I want them to:

adql-table-results.PNG

 

And then here is what it looks like when I switch to pie chart: 

adql-pie-results.PNG

I was expecting the pie chart to have 2 entries in it.  The one that is displayed, and also the null entry as well.

 

Is there a way to accomplish this?

 

Thanks!

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Pie Chart Visualization Help
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