count duplicates with results in single value with trendline

[Mike6960]

I want to count duplicates of certain fields in my data. I am using this search:

..mysearch...| chart count(O_D) as "B_D" by G_B span=1d
| where B_D >1
|stats count ("B_D")

This gives the result I want, but I want to present this in a single value with a trendline. I tried replacing chart with timechart but then the result ends in 0

[HiroshiSatoh]

timechart uses _time. Do _time exist in the previous result?

If you use the time chart, this field name will also be changed. Please also check the field name.

[Mike6960]

what previous result do you mean? Which field name do you mean? If i run my search, i still see _time in my raw events

[HiroshiSatoh]

Can I provide changed search sentences?

[Mike6960]

Yes please

[Mike6960]

or did i understand you wrong?