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docs(design): holistic edge→backend compression (cold chunk + warm sketch) - #331

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zzylol merged 12 commits into

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docs/holistic-compression-design

May 25, 2026

Merged

docs(design): holistic edge→backend compression (cold chunk + warm sketch)#331
zzylol merged 12 commits into
mainfrom
docs/holistic-compression-design

Commits on May 25, 2026
- docs(design): holistic edge→backend compression (cold chunk + warm sketch)
  
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- docs(design): fold in measured sketchlib serialization audit (§2.1)
  
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- docs(design): add §1.7 grouped layout from cross-series benchmark
  
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- docs(design): pin v1 drift/heartbeat policy (§3.1), resolve §5.1
  
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- docs(design): add §6 Sampling × compression composition
  
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- docs(design): correct §4 — shared parse-once stats, NOT a shared offset constant
  
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- docs(design): add §7 sampling algorithms & error-bound derivations
  
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- docs(design): §6.5 early-benefits results from the offline Go sampling benchmark
  
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- docs(design): §6.6 geometric sampling (NitroSketch) note
  
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- docs(design): §8 implementation plan / PR sequence
  
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- docs(design): correct cold-codec headline to no-zstd ~2.2-3.6× (PR #434 measured)
  
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- docs(design): finalize cold-codec ROI to ~2.33x (no-zstd best-of-N, PR #434)
  
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