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skip match label values for certain matchers #8084

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Merged
merged 1 commit into from
Feb 2, 2025
Merged

skip match label values for certain matchers #8084

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12 changes: 12 additions & 0 deletions pkg/store/bucket.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2978,6 +2978,12 @@ func toPostingGroup(ctx context.Context, lvalsFn func(name string) ([]string, er
return nil, nil, err
}

// If the matcher is ="" or =~"", it is the same as removing all values for the label.
// We can skip calling `Matches` here.
if m.Value == "" && (m.Type == labels.MatchEqual || m.Type == labels.MatchRegexp) {
return newPostingGroup(true, m.Name, nil, vals), vals, nil
}

for i, val := range vals {
if (i+1)%checkContextEveryNIterations == 0 && ctx.Err() != nil {
return nil, nil, ctx.Err()
Expand Down Expand Up @@ -3006,6 +3012,12 @@ func toPostingGroup(ctx context.Context, lvalsFn func(name string) ([]string, er
return nil, nil, err
}

// If the matcher is !="" or !~"", it is the same as adding all values for the label.
// We can skip calling `Matches` here.
if m.Value == "" && (m.Type == labels.MatchNotEqual || m.Type == labels.MatchNotRegexp) {
return newPostingGroup(false, m.Name, vals, nil), vals, nil
}

var toAdd []string
for i, val := range vals {
if (i+1)%checkContextEveryNIterations == 0 && ctx.Err() != nil {
Expand Down
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