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AIclinicalresearch/backend/migrations/add_data_stats_to_tool_c_session.sql
HaHafeng dfc472810b feat(iit-manager): Integrate Dify knowledge base for hybrid retrieval
Completed features:
- Created Dify dataset (Dify_test0102) with 2 processed documents
- Linked test0102 project with Dify dataset ID
- Extended intent detection to recognize query_protocol intent
- Implemented queryDifyKnowledge method (semantic search Top 5)
- Integrated hybrid retrieval (REDCap data + Dify documents)
- Fixed AI hallucination bugs (intent detection + API field path)
- Developed debugging scripts
- Completed end-to-end testing (5 scenarios passed)
- Generated comprehensive documentation (600+ lines)
- Updated development plans and module status

Technical highlights:
- Single project single knowledge base architecture
- Smart routing based on user intent
- Prevent AI hallucination by injecting real data/documents
- Session memory for multi-turn conversations
- Reused LLMFactory for DeepSeek-V3 integration

Bug fixes:
- Fixed intent detection missing keywords
- Fixed Dify API response field path error

Testing: All scenarios verified in WeChat production environment

Status: Fully tested and deployed
2026-01-04 15:44:11 +08:00

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-- 为 DcToolCSession 添加 dataStats 字段
-- 用于缓存数据统计信息,支持数据探索问答功能
--
-- 执行方法psql -d airesearch_v2 -f add_data_stats_to_tool_c_session.sql
\c airesearch_v2
-- 添加字段
ALTER TABLE dc_schema.dc_tool_c_sessions
ADD COLUMN IF NOT EXISTS data_stats JSONB NULL;
-- 添加注释
COMMENT ON COLUMN dc_schema.dc_tool_c_sessions.data_stats IS '数据统计信息缓存(用于数据探索问答):{totalRows, columnStats}';
-- 验证
SELECT column_name, data_type, is_nullable
FROM information_schema.columns
WHERE table_schema = 'dc_schema'
AND table_name = 'dc_tool_c_sessions'
AND column_name = 'data_stats';
\echo '✅ 字段 data_stats 已成功添加到 dc_tool_c_sessions 表'