Chart from a single column

Is it possible to plot a Line Chart from a single column?
I performed my query in Metabase with SQL, it shows a single column of number as I expected.
Now I would like to see a plot of these the numbers in the same order as they are displayed.
If I select “line chart”, it nees a X series and Y series. I would like to supply only the Y series, and that the X series assume “linear sampling times”, or some kind of row ID.
Is this possible?

In cas this is relevant, my data source is BigQuery (nested tabled).

Not at the moment. We generally just plot what you give us.

Does BQ offer a way to get the result row number?

Yes, but I’m a beginner and could not get it to work with the nested schema.