change comment that allows timestamps to be optional

Signed-off-by: Callum Styan <callumstyan@gmail.com>
This commit is contained in:
Callum Styan 2024-08-01 12:32:49 -07:00
parent 00ab05c3b9
commit 2bcac1b77b

View file

@ -107,15 +107,10 @@ message Exemplar {
// value represents an exact example value. This can be useful when the exemplar
// is attached to a histogram, which only gives an estimated value through buckets.
double value = 2;
// timestamp represents an optional timestamp of the sample in ms.
// timestamp represents the timestamp of the exemplar in ms.
//
// For Go, see github.com/prometheus/prometheus/model/timestamp/timestamp.go
// for conversion from/to time.Time to Prometheus timestamp.
//
// Note that the "optional" keyword is omitted due to
// https://cloud.google.com/apis/design/design_patterns.md#optional_primitive_fields
// Zero value means value not set. If you need to use exactly zero value for
// the timestamp, use 1 millisecond before or after.
int64 timestamp = 3;
}