Display timestamp difference between two values in same serie

Grafana InfluxDB
1

I have a time serie like GasSummaryConsumption.
I would like to construct a expression / query to display virtual value of timestamp difference between two one after the other values.
How should be expression/query builded please ?
Like ?
select ELAPSED(“value”) FROM “GasSum”
displays dif in nanoseconds.
How to convert it to minutes, seconds please ?
Overide in ns displays correct in mins.
Thanks.
Raspbian,Influxdb 1.8

2

Assuming you are using InfluxQL (and not Flux), the elapsed() function should work. You just need to change the unit to minutes, as specified in the documentation, e.g.

> SELECT ELAPSED("value",1m) FROM....
3

Thanks for help.
Is this query staement correct for display the GasSum as dots without line interpretation ?
SELECT ELAPSED(“value”,1m) FROM “GasSum” FILL(null)

4

Looks correct to me.