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Clamp functions should ignore native histograms

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As per the documentation, native histograms are skipped. This is in line
with other `simpleFunc`'s.

Signed-off-by: Joshua Hesketh <josh@nitrotech.org>
This commit is contained in:
Joshua Hesketh 2024-10-16 15:09:27 +11:00
parent d4b1f9eb33
commit 31d19381f6
2 changed files with 27 additions and 0 deletions
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12
promql/functions.go
View file

@ -492,6 +492,10 @@ func funcClamp(vals []parser.Value, args parser.Expressions, enh *EvalNodeHelper
return enh.Out, nil
}
for _, el := range vec {
if el.H != nil {
// Process only float samples.
continue
}
if !enh.enableDelayedNameRemoval {
el.Metric = el.Metric.DropMetricName()
}
@ -509,6 +513,10 @@ func funcClampMax(vals []parser.Value, args parser.Expressions, enh *EvalNodeHel
vec := vals[0].(Vector)
maxVal := vals[1].(Vector)[0].F
for _, el := range vec {
if el.H != nil {
// Process only float samples.
continue
}
if !enh.enableDelayedNameRemoval {
el.Metric = el.Metric.DropMetricName()
}
@ -526,6 +534,10 @@ func funcClampMin(vals []parser.Value, args parser.Expressions, enh *EvalNodeHel
vec := vals[0].(Vector)
minVal := vals[1].(Vector)[0].F
for _, el := range vec {
if el.H != nil {
// Process only float samples.
continue
}
if !enh.enableDelayedNameRemoval {
el.Metric = el.Metric.DropMetricName()
}

15
promql/promqltest/testdata/functions.test vendored
View file

@ -452,6 +452,21 @@ eval instant at 0m clamp(test_clamp, NaN, 0)
eval instant at 0m clamp(test_clamp, 5, -5)
clear
load 1m
mixed_metric {{schema:0 sum:5 count:4 buckets:[1 2 1]}} 1 2 3 {{schema:0 sum:5 count:4 buckets:[1 2 1]}} {{schema:0 sum:8 count:6 buckets:[1 4 1]}}
# clamp ignores any histograms
eval range from 0 to 5m step 1m clamp(mixed_metric, 2, 5)
{} _ 2 2 3
eval range from 0 to 5m step 1m clamp_min(mixed_metric, 2)
{} _ 2 2 3
eval range from 0 to 5m step 1m clamp_max(mixed_metric, 2)
{} _ 1 2 2
# Test cases for sgn.
clear
load 5m