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AIclinicalresearch/backend/prisma/manual-migrations/001_add_postgres_cache_and_checkpoint.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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-- ==================== Postgres-Only 改造:手动迁移 ====================
-- 文件: 001_add_postgres_cache_and_checkpoint.sql
-- 目的: 添加缓存表和断点续传字段
-- 日期: 2025-12-13
-- 说明: 避免Prisma migrate的shadow database问题手动添加所需表和字段
-- ==================== 1. 创建缓存表 (AppCache) ====================
CREATE TABLE IF NOT EXISTS platform_schema.app_cache (
id SERIAL PRIMARY KEY,
key VARCHAR(500) UNIQUE NOT NULL,
value JSONB NOT NULL,
expires_at TIMESTAMP NOT NULL,
created_at TIMESTAMP DEFAULT NOW()
);
-- 创建索引优化过期查询和key查询
CREATE INDEX IF NOT EXISTS idx_app_cache_expires
ON platform_schema.app_cache(expires_at);
CREATE INDEX IF NOT EXISTS idx_app_cache_key_expires
ON platform_schema.app_cache(key, expires_at);
-- ==================== 2. 为AslScreeningTask添加新字段 ====================
-- 任务拆分支持字段
ALTER TABLE asl_schema.screening_tasks
ADD COLUMN IF NOT EXISTS total_batches INTEGER DEFAULT 1,
ADD COLUMN IF NOT EXISTS processed_batches INTEGER DEFAULT 0,
ADD COLUMN IF NOT EXISTS current_batch_index INTEGER DEFAULT 0;
-- 断点续传支持字段
ALTER TABLE asl_schema.screening_tasks
ADD COLUMN IF NOT EXISTS current_index INTEGER DEFAULT 0,
ADD COLUMN IF NOT EXISTS last_checkpoint TIMESTAMP,
ADD COLUMN IF NOT EXISTS checkpoint_data JSONB;
-- ==================== 3. 验证创建结果 ====================
-- 查看app_cache表结构
SELECT
column_name,
data_type,
is_nullable,
column_default
FROM information_schema.columns
WHERE table_schema = 'platform_schema'
AND table_name = 'app_cache'
ORDER BY ordinal_position;
-- 查看screening_tasks新增字段
SELECT
column_name,
data_type,
is_nullable,
column_default
FROM information_schema.columns
WHERE table_schema = 'asl_schema'
AND table_name = 'screening_tasks'
AND column_name IN (
'total_batches', 'processed_batches', 'current_batch_index',
'current_index', 'last_checkpoint', 'checkpoint_data'
)
ORDER BY ordinal_position;
-- ==================== 完成 ====================
-- ✅ 缓存表已创建
-- ✅ 任务拆分字段已添加
-- ✅ 断点续传字段已添加