docs: Update recording rule docs about native histograms

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
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Ganesh Vernekar 2023-01-12 13:35:41 +05:30
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@ -17,9 +17,9 @@ Rule files use YAML.
The rule files can be reloaded at runtime by sending `SIGHUP` to the Prometheus
process. The changes are only applied if all rule files are well-formatted.
_Note about native histograms (experimental feature): Rules evaluating to
native histograms do not yet work as expected. Instead of a native histogram,
the sample stored is just a floating point value of zero._
_Note about native histograms (experimental feature): Native histogram are always
recorded as gauge histograms (for now). Most cases will create gauge histograms
naturally, e.g. after `rate()`._
## Syntax-checking rules