From c87c7d1e29d382ef357e79dcd90256259f7c9cd8 Mon Sep 17 00:00:00 2001
From: Aliaksandr Valialkin <valyala@victoriametrics.com>
Date: Thu, 23 Feb 2023 20:05:11 -0800
Subject: [PATCH] app/vmselect/promql: measure the time required for
 calculating the aggregate function from the prepared source time series

---
 app/vmselect/promql/eval.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/app/vmselect/promql/eval.go b/app/vmselect/promql/eval.go
index 100bb15d5..ded6e9577 100644
--- a/app/vmselect/promql/eval.go
+++ b/app/vmselect/promql/eval.go
@@ -373,7 +373,9 @@ func evalAggrFunc(qt *querytracer.Tracer, ec *EvalConfig, ae *metricsql.AggrFunc
 		args: args,
 		ec:   ec,
 	}
+	qtChild := qt.NewChild("eval %s", ae.Name)
 	rv, err := af(afa)
+	qtChild.Done()
 	if err != nil {
 		return nil, fmt.Errorf(`cannot evaluate %q: %w`, ae.AppendString(nil), err)
 	}