Module search Future

Search Module - Future Enhancements

Scope

• hardening and refinement of search runtime behavior
• deterministic reliability improvements for hybrid/distributed merge paths
• stronger benchmark-backed guardrails for search hot paths

Design Constraints

• search contracts remain backward compatible within major release line.
• retrieval/fusion/distributed outcomes remain explicit and deterministic.
• degraded and fallback utility paths remain observable and non-silent.
• analytics/stream outputs remain actionable for operations.

Required Interfaces

Interface	Requirement
retrieval interfaces	deterministic lexical/vector candidate semantics
fusion interfaces	stable hybrid and shard-merge behavior
utility interfaces	bounded expansion/facet/rerank/stream behavior
observability interfaces	explicit analytics and degradation visibility

Implementation Notes

• tighten parity between distributed merge behavior and degradation diagnostics.
• standardize incident taxonomy for shard/fusion/utility failure classes.
• expand resilience tests for prolonged high-concurrency query workloads.
• broaden benchmark depth for multimodal/reranking-heavy scenarios.

Wave B B1: Self-RAG Search Integration

Priority: High Target: Q1–Q2 2027

• add retrieval-controller decision hooks to support selective re-retrieval
• expose retrieval-quality signals for critic feedback classes (Relevant/Partial/Irrelevant)
• support bounded refinement-loop retrieval updates (max three rounds)
• align search-path callback contracts with InferenceEngineEnhanced integration
• contribute ALCE retrieval-quality benchmark coverage for Self-RAG vs vanilla RAG

Test Strategy

• unit and integration suites for hybrid/distributed retrieval and utility behavior.
• regressions for shard failures, overlap anomalies, and candidate limit faults.
• deterministic stress runs for sustained hybrid/distributed query pressure.
• release-profile benchmark runs for mapped search targets.

Performance Targets

• search hot paths remain inside regression budgets.
• hybrid/distributed merge-sensitive operations remain stable at p95/p99 envelopes.
• mapped benchmark manifests reach no-missing-case status for release gating.

Security / Reliability

• maintain strict bounded behavior for candidate and merge operations.
• preserve explicit failure signaling for shard and utility faults.
• enforce predictable degradation under partial backend failures.
• keep diagnostics actionable for production search incidents.

Planning Traceability

• Wave B dependency planning issue: #5039
• Upstream planning context: Wave C #5040, Wave A #5038

Wave B Acceptance Gates (B1)

• precision@k retrieval contribution ≥ 0.85 on golden-doc tests
• retrieval-path latency overhead supports overall Self-RAG target (≤ 1.5× baseline)
• deterministic fallback under shard/back-end partial failures during refinement loops

Related Documents

• AI wave tracker: ../ai/ROADMAP.md
• RAG wave tracker: ../rag/ROADMAP.md
• bibliography: ../../docs/research/ml_enhancements_bibliography.md
• issue scope: https://github.com/makr-code/ThemisDB/issues/5039

---

ThemisDB 1.9.0-beta · Home · Module-Index · GitHub · Issues