beorn7 c58e20ad0e histogram: Identify native histograms even without observations ... Native histograms without observations and with a zero threshold of zero look the same as classic histograms in the protobuf exposition format. According to https://github.com/prometheus/client_golang/issues/1127 , the idea is to add a no-op span to those histograms to mark them as native histograms. This commit enables Prometheus to detect that no-op span and adds a doc comment to the proto spec describing the behavior. Signed-off-by: beorn7 <beorn@grafana.com>		2023-07-26 17:42:30 +02:00
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prometheus/client	histogram: Identify native histograms even without observations	2023-07-26 17:42:30 +02:00