fix(kbdb): search keyword 補 source filter(#66)+semantic 曝 top_k/min_score 帶 score(#67)
#66:/entries/search keyword 路徑 source 解析後丟棄(#5.1 只接了 listEntries 那半)—— searchEntries 尾端加 source?(既有 positional caller 全不用改),conds 補與 listEntries 同款 json_extract(metadata_json,'$.source') 謂詞;route keyword 分支與 semantic 降級 分支兩處傳入。 #67:semantic 固定 topK=20、零分數閾值、低分尾硬湊數——route 曝 top_k(預設 20、封頂 100)與 min_score(預設 0=不過濾)query 參數;semanticSearch 依 min_score 截低分尾; semantic 回應 entry 附 score 欄(加欄不改形)。壞值(非數字/非正)視同沒帶,不 400。 向後相容:不帶新參數時輸出與現況一致(semantic 僅多 score 資訊);不動表(D6)、 不動 D1 結構(API-as-Wall)。測試:新增 search-source-and-score.test.ts 13 條 (source 謂詞形狀/route 下傳/降級不洩 filter/min_score 截斷/topK 透傳封頂/壞值防呆/ 不帶參數行為不變),kbdb vitest 33/33 綠、tsc 0。 關聯 #66 #67。merge 後需 gated redeploy kbdb worker(leo 閘)。 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01JUmjwkHLVBHM3ydhT1WSW3
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@@ -137,6 +137,9 @@ function libraryPredicate(libraries: string[]): string {
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// D1 LIKE keyword search (base; semantic search is the optional embed module).
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// entry_type: optional base filter (generic — caller passes any type, base stays type-agnostic).
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// library: optional 多值庫 filter(portal-auth P1);未帶=行為與舊版一字不變(向後相容)。
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// source: metadata_json.$.source filter(issue #66——#5.1 只接了 listEntries 那半,keyword search
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// 路徑 route 解析完即丟;謂詞與 listEntries 同款 json_extract,不動表)。加在參數尾端,
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// 既有 positional caller 一個都不用改(向後相容)。
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export async function searchEntries(
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db: D1Database,
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q: string,
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@@ -144,11 +147,13 @@ export async function searchEntries(
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entry_type?: string,
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limit = 50,
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library?: string[],
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source?: string,
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): Promise<Entry[]> {
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const conds = ['content LIKE ?'];
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const params: unknown[] = [`%${q}%`];
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if (owner_id) { conds.push('owner_id = ?'); params.push(owner_id); }
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if (entry_type) { conds.push('entry_type = ?'); params.push(entry_type); }
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if (source) { conds.push("json_extract(metadata_json, '$.source') = ?"); params.push(source); }
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if (library && library.length > 0) { conds.push(libraryPredicate(library)); params.push(...library); }
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const res = await db
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.prepare(`SELECT * FROM entries WHERE ${conds.join(' AND ')} ORDER BY updated_at DESC LIMIT ?`)
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+14
-9
@@ -222,11 +222,13 @@ export interface SemanticHit {
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* workers-types 原生 typing;design §3.3 的 fan-out fallback 不需啟用)。未帶=行為不變。
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* 註:向量 metadata 的 library 在寫入端已正規化(未標記='general'),故 $in 不需 NULL 處理;
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* 但「建 library metadata index 之前」upsert 的既有向量沒有此欄 → 部署清單強制 reindex backfill。
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* min_score(issue #67):分數閾值——Vectorize 只會硬湊 topK 筆,低分尾全是無關內容;
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* 過濾放查詢端(非 Vectorize 端,API 無此參數)。預設 0=不過濾(行為與舊版一字不變,向後相容)。
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*/
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export async function semanticSearch(
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env: Bindings,
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q: string,
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opts: { owner_id?: string; source?: string; entry_type?: string; library?: string[]; topK?: number } = {},
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opts: { owner_id?: string; source?: string; entry_type?: string; library?: string[]; topK?: number; min_score?: number } = {},
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): Promise<SemanticHit[] | null> {
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if (!embedEnabled(env)) return null;
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const vec = await embedText(env, q);
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@@ -241,12 +243,15 @@ export async function semanticSearch(
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returnMetadata: 'indexed',
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...(Object.keys(filter).length ? { filter } : {}),
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});
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return (res.matches ?? []).map((m) => ({
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id: m.id,
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score: m.score,
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owner_id: m.metadata?.owner_id as string | undefined,
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entry_type: m.metadata?.entry_type as string | undefined,
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source: m.metadata?.source as string | undefined,
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library: m.metadata?.library as string | undefined,
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}));
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const minScore = opts.min_score ?? 0;
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return (res.matches ?? [])
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.filter((m) => m.score >= minScore)
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.map((m) => ({
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id: m.id,
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score: m.score,
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owner_id: m.metadata?.owner_id as string | undefined,
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entry_type: m.metadata?.entry_type as string | undefined,
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source: m.metadata?.source as string | undefined,
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library: m.metadata?.library as string | undefined,
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}));
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}
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@@ -60,6 +60,11 @@ entryRoutes.get('/', async (c) => {
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// - entry_type:base 通用 filter(caller 傳任意 type,如 workflow;base 不寫死語意,workflow-discovery Q4)。
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// - library:多值庫 filter(逗號分隔,portal-auth P1)。keyword 走 json_extract+NULL→general;
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// semantic 走 Vectorize $in。未帶=全庫(行為不變)。
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// - source:keyword 走 json_extract 謂詞(#66——#5.1 只接了 list 那半,這裡原本解析完即丟);
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// semantic 走 Vectorize metadata filter(原本就有)。
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// - top_k / min_score(#67,semantic 專用):topK 可調(預設 20、上限 100)+分數閾值
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// (預設 0=不過濾)。未帶=行為與舊版一致(向後相容);semantic 回應的 entry 另附 score
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// 欄讓 caller 自裁(加欄不改形,keyword 路徑不受影響)。
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entryRoutes.get('/search', async (c) => {
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const q = c.req.query('q');
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if (!q) return c.json({ success: false, error: 'q required' }, 400);
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@@ -68,12 +73,19 @@ entryRoutes.get('/search', async (c) => {
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const entry_type = c.req.query('entry_type') || undefined;
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const library = parseLibraryParam(c.req.query('library'));
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const mode = c.req.query('mode') === 'semantic' ? 'semantic' : 'keyword';
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// 數字參數防呆:非數字/非正 → 當沒帶(回預設),不 400——與其他 filter「壞值靜默忽略」一致。
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const topKNum = Number(c.req.query('top_k'));
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const top_k = Number.isFinite(topKNum) && topKNum > 0 ? Math.floor(topKNum) : undefined;
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const minScoreNum = Number(c.req.query('min_score'));
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const min_score = Number.isFinite(minScoreNum) && minScoreNum > 0 ? minScoreNum : undefined;
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if (mode === 'semantic') {
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const hits = await semanticSearch(c.env, q, { owner_id, source, entry_type, library });
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const hits = await semanticSearch(c.env, q, {
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owner_id, source, entry_type, library, topK: top_k, min_score,
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});
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if (hits === null) {
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// 模組沒開:誠實降級 keyword + 告知「叫 CC 幫你開 vectorize」(不假裝有語義)。
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const entries = await searchEntries(c.env.DB, q, owner_id, entry_type, undefined, library);
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const entries = await searchEntries(c.env.DB, q, owner_id, entry_type, undefined, library, source);
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return c.json({
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success: true,
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entries,
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@@ -85,13 +97,19 @@ entryRoutes.get('/search', async (c) => {
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});
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}
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// hydrate vector hits → 完整 entry(保持回應形狀與 keyword 一致)。
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const entries = (await Promise.all(hits.map((h) => getEntry(c.env.DB, h.id)))).filter(
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(e): e is NonNullable<typeof e> => e !== null,
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);
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// #67:entry 附 score(相似分數)——加欄不改形,既有 caller 不解析多的欄位不受影響。
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const entries = (
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await Promise.all(
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hits.map(async (h) => {
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const e = await getEntry(c.env.DB, h.id);
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return e ? { ...e, score: h.score } : null;
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}),
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)
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).filter((e): e is NonNullable<typeof e> => e !== null);
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return c.json({ success: true, entries, count: entries.length, mode: 'semantic' });
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}
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const entries = await searchEntries(c.env.DB, q, owner_id, entry_type, undefined, library);
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const entries = await searchEntries(c.env.DB, q, owner_id, entry_type, undefined, library, source);
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return c.json({ success: true, entries, count: entries.length, mode: 'keyword' });
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});
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