feat: add kll sketch implementation and tests - #76
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July 29, 2026 04:16
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Rationale for this change
Add KLL quantiles with current DataSketches semantics and interoperable compact serialization.
What changes are included in this PR?
f32,f64,i64, andString, compatible with current Java and C++ implementations.Are there any user-facing changes?
Yes. This adds the optional
kllfeature and publicKllSketchAPI. Existing users are unaffected unless the feature is enabled.AI Usage Statement
Developed with OpenAI Codex. The implementation and tests were checked against the Java and C++ references and validated with the repository test and lint workflows.