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AIclinicalresearch/backend/prisma/migrations/create_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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-- 创建 Tool C Session 表
-- 日期: 2025-12-06
-- 用途: 科研数据编辑器会话管理
CREATE TABLE IF NOT EXISTS dc_schema.dc_tool_c_sessions (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
user_id VARCHAR(255) NOT NULL,
file_name VARCHAR(500) NOT NULL,
file_key VARCHAR(500) NOT NULL,
-- 数据元信息
total_rows INTEGER NOT NULL,
total_cols INTEGER NOT NULL,
columns JSONB NOT NULL,
encoding VARCHAR(50),
file_size INTEGER NOT NULL,
-- 时间戳
created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
expires_at TIMESTAMP NOT NULL
);
-- 创建索引
CREATE INDEX IF NOT EXISTS idx_dc_tool_c_sessions_user_id ON dc_schema.dc_tool_c_sessions(user_id);
CREATE INDEX IF NOT EXISTS idx_dc_tool_c_sessions_expires_at ON dc_schema.dc_tool_c_sessions(expires_at);
-- 添加注释
COMMENT ON TABLE dc_schema.dc_tool_c_sessions IS 'Tool C (科研数据编辑器) Session会话表';
COMMENT ON COLUMN dc_schema.dc_tool_c_sessions.file_key IS 'OSS存储路径: dc/tool-c/sessions/{timestamp}-{fileName}';
COMMENT ON COLUMN dc_schema.dc_tool_c_sessions.columns IS '列名数组 ["age", "gender", "diagnosis"]';
COMMENT ON COLUMN dc_schema.dc_tool_c_sessions.expires_at IS '过期时间创建后10分钟';