rUv 0f739ba9c7 feat(postgres): Add RuVector Postgres v2 implementation plan ... Complete specification for RuVector Postgres v2 with: Architecture: - PostgreSQL extension (pgrx) with hybrid architecture - SQL handles ACID/joins, RuVector engine handles vectors/graphs/learning - Backward compatible with pgvector SQL surface - Shared memory IPC with bounded contracts (64KB inline, 16MB shared) 4-Phase Implementation: - Phase 1: pgvector-compatible search (1a: function-based, 1b: Index AM) - Phase 2: Tiered storage with compression and exactness GUC - Phase 3: Graph engine with Cypher and SQL join keys - Phase 4: Dynamic mincut integrity gating (key differentiator) Key Technical Details: - lambda_cut: Minimum cut value via Stoer-Wagner (PRIMARY integrity metric) - lambda2: Algebraic connectivity (OPTIONAL drift signal) - DIFFERENT from mincut! - Contracted operational graph (~1000 nodes) - never compute on full similarity graph - Hysteresis model with consecutive samples and cooldown - Operation risk classification (Low/Medium/High) - MVCC visibility with incremental paging API - WAL replay with idempotency and LSN ordering - Partition map versioning and epoch fencing for cluster mode Files: - 00-overview.md: Architecture, consistency contract, benchmark spec - 01-sql-schema.md: SQL schema and types - 02-background-workers.md: IPC contract, mincut worker - 03-index-access-methods.md: Index AM specification - 04-integrity-events.md: Events, hysteresis, operation classes - 05-phase1-pgvector-compat.md: Phase 1a/1b incremental path - 06-phase2-tiered-storage.md: Tiered storage with GUC exactness - 07-phase3-graph-cypher.md: Graph engine with SQL joins - 08-phase4-integrity-control.md: Mincut gating with Stoer-Wagner - 09-migration-guide.md: Migration from pgvector - 10-consistency-replication.md: Consistency and replication model 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>		2025-12-25 20:49:12 +00:00
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v2	feat(postgres): Add RuVector Postgres v2 implementation plan	2025-12-25 20:49:12 +00:00
zero-copy	docs: Reorganize documentation and add postgres README	2025-12-02 16:45:44 +00:00
operator-quick-reference.md	docs: Reorganize documentation and add postgres README	2025-12-02 16:45:44 +00:00
parallel-implementation-summary.md	docs: Reorganize documentation and add postgres README	2025-12-02 16:45:44 +00:00
parallel-query-guide.md	docs: Reorganize documentation and add postgres README	2025-12-02 16:45:44 +00:00
postgres-memory-implementation-summary.md	docs: Reorganize documentation and add postgres README	2025-12-02 16:45:44 +00:00
postgres-zero-copy-memory.md	docs: Reorganize documentation and add postgres README	2025-12-02 16:45:44 +00:00
postgres-zero-copy-quick-reference.md	docs: Reorganize documentation and add postgres README	2025-12-02 16:45:44 +00:00
SPARSEVEC_IMPLEMENTATION.md	docs: Reorganize documentation and add postgres README	2025-12-02 16:45:44 +00:00
SPARSEVEC_QUICKSTART.md	docs: Reorganize documentation and add postgres README	2025-12-02 16:45:44 +00:00