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improve handling of empty buckets with infinite bounds in histogram std dev/var

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Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
This commit is contained in:
Jeanette Tan 2024-03-22 03:42:50 +08:00 committed by beorn7
parent 22d0f4f114
commit 4f2df329bd
1 changed files with 6 additions and 0 deletions
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6
promql/functions.go
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@ -1111,6 +1111,9 @@ func funcHistogramStdDev(vals []parser.Value, args parser.Expressions, enh *Eval
it := sample.H.AllBucketIterator() it := sample.H.AllBucketIterator()
for it.Next() { for it.Next() {
bucket := it.At() bucket := it.At()
if bucket.Count == 0 {
continue
}
var val float64 var val float64
if bucket.Lower <= 0 && 0 <= bucket.Upper { if bucket.Lower <= 0 && 0 <= bucket.Upper {
val = 0 val = 0
@ -1147,6 +1150,9 @@ func funcHistogramStdVar(vals []parser.Value, args parser.Expressions, enh *Eval
it := sample.H.AllBucketIterator() it := sample.H.AllBucketIterator()
for it.Next() { for it.Next() {
bucket := it.At() bucket := it.At()
if bucket.Count == 0 {
continue
}
var val float64 var val float64
if bucket.Lower <= 0 && 0 <= bucket.Upper { if bucket.Lower <= 0 && 0 <= bucket.Upper {
val = 0 val = 0