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fix: changed PromQL stdvar/stddev to population=true - #17

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16-fix-promql-stddevstdvar-should-lower-to-population=true
May 28, 2026
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milindsrivastava1997 merged 1 commit into
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16-fix-promql-stddevstdvar-should-lower-to-population=true

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@milindsrivastava1997 milindsrivastava1997 linked an issue May 28, 2026 that may be closed by this pull request
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milindsrivastava1997 merged commit a94dcc0 into main May 28, 2026
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milindsrivastava1997 deleted the 16-fix-promql-stddevstdvar-should-lower-to-population=true branch May 28, 2026 19:35
zzylol added a commit that referenced this pull request Aug 24, 2026
Restructure the flat 19-section developer guide into the three-part
structure the doc owner asked for: Part 1 - Code Architecture, Part 2
- Interfaces and Definitions, Part 3 - How to Add X, Y, Z (each ending
in how to verify). Content is moved, not rewritten:

Part 1 (Mental model first, per doc-owner follow-up, then a new
whole-PR architecture diagram, then "How the current pieces fit
together"):
- old #1 Mental model -> Part 1 #1
- new: whole-PR architecture diagram (TargetSubDAG's two entry points
  through ReplacementStrategy, PlanSpace/cost_sorted, explanation.rs,
  to a downstream consumer) -> Part 1 #2
- old #3 How the current pieces fit together -> Part 1 #3

Part 2:
- old Terminology's "Implementation" definition merged into the
  Glossary as one more entry (### Implementation), next to
  ReplacementStrategy
- old #2 Glossary -> Part 2 #1 (plus the merged Implementation entry
  and old #10 Matcher, retitled to match glossary-entry style)
- old #10 Matcher (implementation.rs) -> ### Matcher inside the
  Glossary; implementation.rs no longer exists, so the stale title
  is fixed
- old #19's definitional content (ReplacementExplanation/
  ExplanationKind shapes, node_hash, why there's no ExplanationRule
  trait, location-text ownership) -> Part 2 #2

Part 3:
- old #4, #5, #6, #7, #13, #14 -> Part 3 #1, Adding a new
  ReplacementStrategy (ending in Testing a new strategy)
- old #8, #9, #15 -> Part 3 #2, Adding or customizing a CostModel
  (ending in Testing a new cost model)
- old #12 -> Part 3 #3, Adding a new sketch algorithm, with its
  stale implementation.rs/binder references fixed to replacement.rs/
  construct_summary vocabulary, plus a new "Verifying a new sketch
  algorithm" close grounded in the existing coverage-matrix tests
- old #11, #16, #17, #18 -> Part 3 #4-#7 (capstone + closing
  reference material); #18's extension-map table's implementation.rs
  row fixed to replacement.rs
- old #19's "Using it"/"Adding a new kind" content -> Part 3 #8,
  Using and extending explanation.rs

cargo build --workspace --all-targets is clean (docs-only change).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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fix: PromQL stddev/stdvar should lower to population=true

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