altair823
3cd5117a7e
First VectorStore implementation. Per-model Lance tables under config.storage.vector_dir, two-phase upsert (SQLite-pending → Lance MergeInsert → SQLite-committed) with crash-safe retry, search via cosine distance with the spec's score-shift (preserves negative similarity ranking signal that clamping would crush). V003 migration: - Adds status (CHECK constraint pending|committed|tombstone, default pending) and vector_committed columns to embedding_records. - BEFORE DELETE trigger on chunks flips dependent rows to tombstone. Currently overshadowed by V001's ON DELETE CASCADE FK; trigger UPDATE runs first then row vanishes via CASCADE. Spec-faithful tombstone preservation requires recreating embedding_records to drop the CASCADE — deferred to a P+ migration since no production rows exist yet (P3-3 is the first writer). V003 SQL comment explains. LanceVectorStore: - ensure_table is idempotent: opens existing or creates with the Arrow schema (chunk_id, doc_id, embedding FixedSizeList<Float32, dim>, model_id, embedding_version, text, heading_path, created_at). - IndexId computed via id_for_index with collection="chunk_embeddings", index_kind="flat", params_hash = blake3(descriptor JSON). Schema bumps automatically rotate the IndexId. - upsert: phase-1 INSERT OR REPLACE INTO embedding_records (status= 'pending') in a single SQLite tx; phase-2 Lance MergeInsert keyed on chunk_id (idempotent re-run); phase-3 UPDATE status='committed', vector_committed=1. If phase-2 fails the rows stay 'pending' and the next upsert call retries idempotently. - search joins embedding_records WHERE status='committed' so partial- write rows never surface. Cosine distance from Lance ∈ [0, 2] → similarity = 1 - distance ∈ [-1, 1] → score = (similarity + 1)/2 ∈ [0, 1]. NaN coerced to 0 with tracing::warn. Filter by SearchFilters via SqliteStore::filter_chunks (added in this commit). - Sync trait + async LanceDB bridged by an embedded current-thread tokio runtime. Doc-comment on the struct flags the "do NOT call from inside another tokio runtime" panic (block_on cannot nest). kb-app's job scheduler is sync today. kb-store-sqlite additions: - pub fn put_embedding_records_pending(&[EmbeddingRecordRow]) — phase-1 INSERT OR REPLACE (status='pending', vector_committed=0). - pub fn mark_embedding_records_committed(&[EmbeddingId]) — phase-3 single UPDATE … WHERE embedding_id IN (?, ?, …) via params_from_iter, guarded by WHERE status='pending' so tombstones don't get clobbered. - pub fn filter_chunks(&[ChunkId], &SearchFilters) → Vec<ChunkId> consolidates the JOIN against documents/document_tags/ embedding_records + path_glob via globset. Lets kb-store-vector honor SearchFilters without depending on rusqlite or globset directly. (kb-search's filter logic is structurally different — interleaved with the FTS5 SELECT — so it stays as-is for now; consolidation is a P+ refactor.) - 4 new unit tests cover the phase-1 round-trip, empty batch, replay reset of pending rows, and the WHERE-status-pending guard. Tests: - 9 lib unit tests in kb-store-vector covering paths/sanitization, arrow_batch dim validation + descriptor hash, bm25-style cosine score shift math. - 4 new kb-store-sqlite unit tests on filter_chunks (committed-only, tags/lang/trust/path_glob, order preservation, empty input). - 4 new kb-store-sqlite unit tests on the embedding_records helpers. - 8 integration tests in upsert_search.rs and 1 snapshot test marked #[ignore = "requires AVX-capable hardware (LanceDB)"]. They invoke require_avx_or_panic() at the top of each body so a missing-AVX --ignored run fails loudly instead of silently passing. This dev host (qemu64 model) lacks AVX so these were NOT exercised end-to- end here — first CI lane on AVX hardware will validate them. - Snapshot fixture tests/fixtures/vector/run-1.json is a placeholder with an _comment marker. Snapshot test panics until the placeholder is replaced via KB_UPDATE_SNAPSHOTS=1 on AVX hardware. - Workspace 241 passed, 19 ignored, 0 failed; cargo clippy --workspace --all-targets -- -D warnings clean. Allowed deps respected (kb-core, kb-config, kb-store-sqlite, lancedb, arrow + arrow-array + arrow-schema, serde, serde_json, tracing, thiserror) plus forced waivers — anyhow (trait return type), tokio + futures (LanceDB async-only API), blake3 (params_hash). rusqlite and globset are NOT direct deps of kb-store-vector — confirmed via cargo metadata --no-deps. rusqlite stays in [dev-dependencies] for the test fixture seeder only. Out of scope: IVF/PQ index tuning (P+), image vectors (P6), kb-app embed_index orchestration (P3-4 facade). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
57 lines
1.8 KiB
TOML
57 lines
1.8 KiB
TOML
[workspace]
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resolver = "3"
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members = [
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"crates/kb-core",
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"crates/kb-parse-types",
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"crates/kb-config",
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"crates/kb-source-fs",
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"crates/kb-parse-md",
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"crates/kb-normalize",
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"crates/kb-chunk",
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"crates/kb-store-sqlite",
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"crates/kb-store-vector",
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"crates/kb-search",
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"crates/kb-embed",
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"crates/kb-embed-local",
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"crates/kb-app",
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"crates/kb-cli",
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]
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[workspace.package]
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edition = "2024"
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rust-version = "1.85"
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license = "MIT OR Apache-2.0"
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repository = "https://github.com/altair823/kb"
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version = "0.1.0"
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[workspace.dependencies]
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anyhow = "1"
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thiserror = "2"
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serde = { version = "1", features = ["derive"] }
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serde_json = "1"
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time = { version = "0.3", features = ["serde", "macros", "formatting", "parsing"] }
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uuid = { version = "1", features = ["v7", "serde"] }
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blake3 = "1"
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tracing = "0.1"
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# `bundled` ships SQLite source so the workspace doesn't depend on a
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# system libsqlite3 (matches the kb-store-sqlite feature set).
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rusqlite = { version = "0.32", features = ["bundled"] }
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globset = "0.4"
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tempfile = "3"
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proptest = "1"
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# fastembed-rs ships ONNX runtime via the `ort-download-binaries` feature
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# in its default set (which also pulls `hf-hub` for first-run model
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# downloads). Pinned to the 4.x line per task p3-2 (current 5.x release
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# remains untested for this workspace).
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fastembed = "4.9"
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# LanceDB embedded vector store (P3-3). 0.23.x pulls arrow / arrow-array /
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# arrow-schema 56.x transitively (via lance 1.0); the kb-store-vector
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# crate matches that major to share the same Arrow types without a
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# re-export adapter.
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lancedb = { version = "0.23", default-features = false }
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arrow = "56"
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arrow-array = "56"
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arrow-schema = "56"
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tokio = { version = "1", features = ["rt", "macros"] }
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futures = "0.3"
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