From eaecd0ab22da9aa772646cbac8080564fd6d0c8b Mon Sep 17 00:00:00 2001
From: cfdaily <cfdaily@gitee.com>
Date: Fri, 15 May 2026 23:26:21 +0800
Subject: [PATCH] auto-sync: 2026-05-15 23:26:21

---
 .../design/topic6-experience-loop-proposal.md | 21 ++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/docs/design/topic6-experience-loop-proposal.md b/docs/design/topic6-experience-loop-proposal.md
index eb54bf6..da12fca 100644
--- a/docs/design/topic6-experience-loop-proposal.md
+++ b/docs/design/topic6-experience-loop-proposal.md
@@ -229,7 +229,6 @@ CREATE TABLE experiences (
     experience_id TEXT PRIMARY KEY,
     source TEXT NOT NULL,           -- task_completion / error_correction / review_finding / manual
     task_id TEXT,                   -- 来源任务（FK → tasks）
-    tags TEXT NOT NULL,             -- JSON array: ["vnpy", "strategy-coding"]
     summary TEXT NOT NULL,          -- 经验摘要（200字以内）
     category TEXT NOT NULL,         -- pitfall / best_practice / pattern / anti_pattern
     confidence REAL DEFAULT 0.8,    -- 0-1
@@ -242,12 +241,24 @@ CREATE TABLE experiences (
     updated_at TEXT,
     deprecated_reason TEXT
 );
+
+-- tags 多对多关联表（替代 JSON array，走 B-tree 索引）
+CREATE TABLE experience_tags (
+    experience_id TEXT NOT NULL REFERENCES experiences(experience_id),
+    tag TEXT NOT NULL,
+    PRIMARY KEY (experience_id, tag)
+);
+CREATE INDEX idx_exptags_tag ON experience_tags(tag);
 ```
 
-**索引**：
-- `idx_exp_tags`：tags（JSON）— 按标签检索
-- `idx_exp_status`：status — 按状态过滤
-- `idx_exp_category`：category — 按类型过滤
+**查询示例**（D6-5 注入逻辑）：
+```sql
+SELECT DISTINCT e.* FROM experiences e
+JOIN experience_tags et ON e.experience_id = et.experience_id
+WHERE et.tag IN ('vnpy', 'strategy-coding')
+  AND e.status = 'active'
+LIMIT 3;
+```
 
 ### D6-8：和课题4四层架构的关系