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docs: Clarify that range selectors use a closed interval

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Signed-off-by: beorn7 <beorn@grafana.com>
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beorn7 2023-03-16 13:55:57 +01:00
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docs/querying/basics.md
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@ -157,9 +157,11 @@ syntax](https://github.com/google/re2/wiki/Syntax).
Range vector literals work like instant vector literals, except that they
select a range of samples back from the current instant. Syntactically, a [time
duration](#time-durations) is appended in square brackets (`[]`) at the end of a
vector selector to specify how far back in time values should be fetched for
each resulting range vector element.
duration](#time-durations) is appended in square brackets (`[]`) at the end of
a vector selector to specify how far back in time values should be fetched for
each resulting range vector element. The range is a closed interval,
i.e. samples with timestamps coinciding with either boundary of the range are
still included in the selection.
In this example, we select all the values we have recorded within the last 5
minutes for all time series that have the metric name `http_requests_total` and