Function lookup

pkg/traceql/engine_metrics.go:1224–1232

(needles []Attribute, haystack Span)

}

func lookup(needles []Attribute, haystack Span) Static {
	for _, n := range needles {
		if v, ok := haystack.AttributeFor(n); ok {
			return v
		}
	}

	return NewStaticNil()
}

type MetricsEvaluator struct {
	start, end                      uint64