m_histogram(metricName: string, [filter: bool]?) -> histogram

Select an OpenTelemetry explicit bucket histogram metric for the align verb.

For other metrics, please use m(), m_tdigest(), or m_exponential_histogram() instead.

Domain

This is a scalar function (calculates a single output value for a single input row).

Categories

• Misc

Examples

align 5m, latency: histogram_combine(m_histogram("response_latency"))

An OpenTelemetry explicit bucket histogram metric response_latency is selected for align using m_histogram. It is then aggregated into 5min time bins using histogram_combine.