diff --git a/docs/MetricsQL.md b/docs/MetricsQL.md index 3ef3640790..8014d098cb 100644 --- a/docs/MetricsQL.md +++ b/docs/MetricsQL.md @@ -204,7 +204,7 @@ See also [implicit query conversions](#implicit-query-conversions). #### lifetime -`lifetime(series_selector[d])` calculates the lifetime in seconds per each time series returned from the given [series_selector](https://prometheus.io/docs/prometheus/latest/querying/basics/#time-series-selectors). The returned lifetime is limited by the given lookbehind window `d`. Metric names are stripped from the resulting rollups. See also [lag](#lag). +`lifetime(series_selector[d])` returns the duration in seconds between the last and the first sample on the given lookbehind window `d` per each time series returned from the given [series_selector](https://prometheus.io/docs/prometheus/latest/querying/basics/#time-series-selectors). Metric names are stripped from the resulting rollups. See also [lag](#lag). #### max_over_time