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MQE: info() derive info series @ reference only when the first argument's vector paths are uniform - #16497

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zenador merged 5 commits into
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zenador/mqe-info-func-fix-safely-derive
Sep 1, 2026
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MQE: info() derive info series @ reference only when the first argument's vector paths are uniform#16497
zenador merged 5 commits into
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zenador/mqe-info-func-fix-safely-derive

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@zenador

@zenador zenador commented Aug 28, 2026

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What this PR does

Restore MQE's feature parity with Prometheus for the info function, matching behaviour for tests defined upstream.

Which issue(s) this PR fixes or relates to

Refining the behaviour implemented in #16220

Implements prometheus/prometheus#19387 from upstream that was vendored in #16496

Checklist

  • Tests updated.
  • Documentation added.
  • CHANGELOG.md updated - the order of entries should be [CHANGE], [FEATURE], [ENHANCEMENT], [BUGFIX]. If changelog entry is not needed, please add the changelog-not-needed label to the PR.
  • about-versioning.md updated with experimental features.

@zenador
zenador requested a review from a team as a code owner August 28, 2026 12:24

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Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

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Comment thread pkg/streamingpromql/planning/core/info.go
@zenador
zenador merged commit da92ed1 into main Sep 1, 2026
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@zenador
zenador deleted the zenador/mqe-info-func-fix-safely-derive branch September 1, 2026 14:37
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2 participants