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"""
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Text2SQL Few-shot 集成示例
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展示如何在现有系统中集成经验数据集few-shot功能
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"""
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from typing import Optional, List
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def enhance_orchestrator_with_fewshot(orchestrator_class):
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"""
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装饰器:为Text2SQLOrchestrator添加few-shot功能
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用法:
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from agents.orchestrator import Text2SQLOrchestrator
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EnhancedOrchestrator = enhance_orchestrator_with_fewshot(Text2SQLOrchestrator)
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orch = EnhancedOrchestrator(..., fewshot_enabled=True, fewshot_top_k=3)
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"""
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class FewShotEnhancedOrchestrator(orchestrator_class):
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"""增强版Orchestrator,支持few-shot"""
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def __init__(
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self,
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*args,
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fewshot_enabled: bool = True,
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fewshot_samples_path: Optional[str] = None,
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fewshot_top_k: int = 3,
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fewshot_min_rating: int = 7,
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**kwargs
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):
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super().__init__(*args, **kwargs)
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self.fewshot_enabled = fewshot_enabled
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self.fewshot_top_k = fewshot_top_k
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self.fewshot_min_rating = fewshot_min_rating
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self.fewshot_selector = None
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if fewshot_enabled:
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from utils.fewshot_selector import FewShotSelector
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path = fewshot_samples_path or "data/experiences/all_samples.jsonl"
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self.fewshot_selector = FewShotSelector(path)
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print(f"✅ Few-shot已启用: top_k={fewshot_top_k}, min_rating={fewshot_min_rating}")
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def _generate_sql_with_fewshot(
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self,
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question: str,
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schema_str: str,
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dialect: str = "tsql"
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) -> str:
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"""带few-shot的SQL生成"""
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from llm.deepseek_client import DeepSeekConfig
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# 获取few-shot示例
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examples_prompt = ""
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if self.fewshot_selector:
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examples = self.fewshot_selector.select(
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question=question,
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top_k=self.fewshot_top_k,
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min_rating=self.fewshot_min_rating,
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exclude_qids=[] # 可排除当前问题(如果已存在)
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)
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if examples:
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examples_prompt = "\n\n".join([
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f"示例 {i+1}:\n问题:{ex.question_zh}\nSQL:\n{ex.sql}"
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for i, ex in enumerate(examples)
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])
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examples_prompt = f"参考以下相似示例:\n\n{examples_prompt}\n\n"
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# 构造增强的Prompt
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from config.prompts import SQL_GENERATOR_SYSTEM, SQL_GENERATOR_USER
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user_content = f"""{examples_prompt}
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当前问题:{question}
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Schema信息:
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{schema_str}
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数据库方言:{dialect}
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请参考上述示例的SQL编写风格,生成**有用 SQL**:
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- 与示例保持相同的版式(大写关键字、4空格缩进、PascalCase别名)
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- 根据当前Schema选择正确的表和字段
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- 输出纯SQL,不要其他内容"""
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messages = [
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{"role": "system", "content": SQL_GENERATOR_SYSTEM},
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{"role": "user", "content": user_content}
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]
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# 调用LLM
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config = DeepSeekConfig(
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api_key=self.deepseek.config.api_key,
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base_url=self.deepseek.config.base_url,
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model_name=self.deepseek.config.model_name,
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temperature=0.3,
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max_tokens=4096
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)
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from llm.deepseek_client import DeepSeekClient
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client = DeepSeekClient(config)
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response = client.chat(messages)
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sql = response.content.strip()
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# 清理代码块
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if "```sql" in sql:
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sql = sql[sql.find("```sql")+6:sql.find("```", sql.find("```sql")+6)].strip()
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elif "```" in sql:
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sql = sql[sql.find("```")+3:sql.find("```", sql.find("```")+3)].strip()
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from utils.sql_parser import normalize_sql_for_dialect
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return normalize_sql_for_dialect(sql, dialect)
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# 重写 _generate_sql 方法
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def _generate_sql(
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self,
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question: str,
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schema_str: str,
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dialect: str = "tsql"
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) -> str:
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if self.fewshot_enabled and self.fewshot_selector:
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return self._generate_sql_with_fewshot(question, schema_str, dialect)
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else:
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return super()._generate_sql(question, schema_str, dialect)
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return FewShotEnhancedOrchestrator
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# ========== 集成步骤 ==========
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def integrate_fewshot():
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"""
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集成few-shot功能的完整步骤
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"""
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print("=" * 60)
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print("Few-shot 集成指南")
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print("=" * 60)
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steps = """
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**步骤1:确保经验数据集已生成**
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```bash
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cd text2sql_agent_camel
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python scripts/parse_examples.py
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```
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生成: data/experiences/all_samples.jsonl
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**步骤2:修改 agents/orchestrator.py**
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在文件开头添加:
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```python
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from utils.fewshot_selector import FewShotSelector
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```
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修改 Text2SQLOrchestrator.__init__:
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```python
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def __init__(self, ..., fewshot_enabled=True, fewshot_top_k=3, ...):
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# ... 原有代码 ...
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self.fewshot_enabled = fewshot_enabled
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self.fewshot_top_k = fewshot_top_k
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self.fewshot_selector = None
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if fewshot_enabled:
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self.fewshot_selector = FewShotSelector(
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os.getenv("FEWSHOT_DATA_PATH", "data/experiences/all_samples.jsonl")
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)
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logger.info(f"Few-shot已启用: top_k={fewshot_top_k}")
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```
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修改 _generate_sql 方法(约第251行):
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```python
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def _generate_sql(self, question: str, schema_str: str, dialect: str = "tsql") -> str:
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# 添加few-shot增强
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if self.fewshot_enabled and self.fewshot_selector:
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examples = self.fewshot_selector.select(
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question=question,
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top_k=self.fewshot_top_k,
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min_rating=7,
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exclude_qids=[] # 可选:排除当前问题对应的QID
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)
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if examples:
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examples_prompt = "\\n\\n".join([
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f"示例({ex.qid}):\\n问题:{ex.question_zh}\\nSQL:\\n{ex.sql}"
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for ex in examples
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])
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# 将examples_prompt注入到用户消息中
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# (需要调整 deepseek_client 调用逻辑)
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# ... 原有生成逻辑 ...
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```
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**步骤3:配置环境变量(可选)**
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```bash
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# .env 文件添加
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FEWSHOT_ENABLED=true
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FEWSHOT_TOP_K=3
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FEWSHOT_MIN_RATING=7
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FEWSHOT_DATA_PATH=./data/experiences/all_samples.jsonl
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```
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**步骤4:测试效果**
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```bash
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# 对比测试
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python main.py "查询2024年1月的销售额" --verbose
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# 观察日志中的 "Few-shot已选择: Q31, Q6, Q44"
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```
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**步骤5:A/B测试评估**
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```python
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# 创建对比脚本
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from agents.orchestrator import Text2SQLOrchestrator
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# 无few-shot
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orch_baseline = Text2SQLOrchestrator(..., fewshot_enabled=False)
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result1 = orch_baseline.generate(question)
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# 有few-shot
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orch_fewshot = Text2SQLOrchestrator(..., fewshot_enabled=True, fewshot_top_k=3)
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result2 = orch_fewshot.generate(question)
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print(f"Baseline: {result1.sql[:100]}")
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print(f"Few-shot: {result2.sql[:100]}")
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```
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"""
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print(steps)
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def quick_test_fewshot():
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"""快速测试few-shot选择器"""
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from utils.fewshot_selector import FewShotSelector
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selector = FewShotSelector("data/experiences/all_samples.jsonl")
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test_questions = [
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"查询2024年1月的销售额",
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"统计所有活跃账户数量",
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"按对手方列出未结算交易",
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"查询今天的现金余额",
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]
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print("\nFew-shot选择测试:\n")
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for q in test_questions:
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print(f"问题: {q}")
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examples = selector.select(q, top_k=2, min_rating=8)
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for ex in examples:
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print(f" [{ex.qid}] {ex.question_zh[:40]}... (rating={ex.rating})")
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print()
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if __name__ == "__main__":
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integrate_fewshot()
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# quick_test_fewshot()
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@@ -0,0 +1,439 @@
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#!/usr/bin/env python3
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"""
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将 Example_text2sql.md 解析为结构化数据集
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输出格式:
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1. JSONL格式(每行一个样本)
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2. 按难度/类别分类
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3. 包含Schema、SQL、执行结果、评分
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"""
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import re
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import json
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import yaml
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from pathlib import Path
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from typing import List, Dict, Optional, Any
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from dataclasses import dataclass, asdict
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from datetime import datetime
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@dataclass
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class Text2SQLSample:
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"""单条Text2SQL样本"""
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qid: str # 问题ID,如 "Q1"
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question_zh: str # 中文问题
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sql: str # SQL语句
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schema_info: Dict[str, Any] # Schema信息(表、字段)
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explanation: str = "" # SQL理由
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question_en: Optional[str] = None # 英文问题(如有)
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rating: Optional[int] = None # 准确度评分 1-10
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execution_result: Optional[List[Dict]] = None # 执行结果(表格)
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result_note: str = "" # 结果说明(如"当前查询无结果")
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tags: List[str] = None # 标签(如["聚合", "JOIN", "日期筛选"])
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difficulty: str = "medium" # 难度:easy/medium/hard
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def __post_init__(self):
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if self.tags is None:
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self.tags = []
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def to_dict(self):
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return asdict(self)
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def to_fewshot_example(self) -> str:
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"""转换为few-shot示例字符串"""
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return f"""问题:{self.question_zh}
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Schema:{json.dumps(self.schema_info, ensure_ascii=False)[:500]}
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SQL:
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{self.sql}
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"""
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class ExampleText2SQLParser:
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"""解析 Example_text2sql.md 文件"""
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def __init__(self, md_path: str):
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self.md_path = Path(md_path)
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self.content = self.md_path.read_text(encoding='utf-8')
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self.samples: List[Text2SQLSample] = []
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def parse(self) -> List[Text2SQLSample]:
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"""解析整个MD文件"""
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# 按问题分割(## Qxx. 标题)
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q_blocks = re.split(r'\n## Q(\d+)\. ', self.content)
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# q_blocks[0] 是文件头(目录、固定日期说明等),跳过
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for i in range(1, len(q_blocks)):
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qid_num = q_blocks[i].split('\n')[0].strip() # 从分割中获取问题号
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# 实际qid应为 "Q{num}"
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# 重新用正则匹配完整的Q标题
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pass
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# 更稳健的方法:直接用正则查找所有Q标题块
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pattern = r'(## Q(\d+)\. .*?)(?=\n## Q\d+\. |\Z)'
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matches = re.findall(pattern, self.content, re.DOTALL)
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print(f"找到 {len(matches)} 个问答对")
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for full_match, qid in matches:
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sample = self._parse_single_block(qid, full_match)
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if sample:
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self.samples.append(sample)
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return self.samples
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def _parse_single_block(self, qid: str, block: str) -> Optional[Text2SQLSample]:
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"""解析单个问答块"""
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try:
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lines = block.strip().split('\n')
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# 提取问题(支持中英文双语)
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# 格式:### 问题 后跟英文段落,空行,然后中文段落
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question_zh = ""
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question_en = ""
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found_question_header = False
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paragraph_lines = []
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paragraphs = []
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for line in lines:
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if line.startswith('### 问题'):
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found_question_header = True
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continue
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if not found_question_header:
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continue
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if line.startswith('###'):
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# 遇到下一节,停止
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break
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if line.strip() == '':
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# 空行:段落结束
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if paragraph_lines:
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paragraphs.append(' '.join(paragraph_lines).strip())
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paragraph_lines = []
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else:
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paragraph_lines.append(line.strip())
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# 最后一个段落
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if paragraph_lines:
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paragraphs.append(' '.join(paragraph_lines).strip())
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# 第一段为英文,第二段为中文
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if len(paragraphs) >= 1:
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question_en = paragraphs[0]
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if len(paragraphs) >= 2:
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question_zh = paragraphs[1]
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# 提取SQL
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sql_match = re.search(r'```sql\n(.*?)\n```', block, re.DOTALL)
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if not sql_match:
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return None
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sql = sql_match.group(1).strip()
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# 提取SQL理由(### SQL理由 后面的内容)
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reason_match = re.search(r'### SQL理由\n\n(.*?)(?=\n### |\Z)', block, re.DOTALL)
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explanation = reason_match.group(1).strip() if reason_match else ""
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# 提取评分(### SQL准确度评分)
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rating_match = re.search(r'\*\*评分:\s*(\d+)/10\*\*', block)
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rating = int(rating_match.group(1)) if rating_match else None
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# 提取结果说明(### SQL执行结果 后面)
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result_match = re.search(r'### SQL执行结果\n\n(.*?)(?=\n### |\Z)', block, re.DOTALL)
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result_note = result_match.group(1).strip() if result_match else ""
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# 推断标签
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tags = self._infer_tags(question_zh, sql)
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# 推断难度
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difficulty = self._infer_difficulty(sql, tags)
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# 构建Schema信息(从SQL中提取的表和字段)
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schema_info = self._extract_schema_from_sql(sql)
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return Text2SQLSample(
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qid=f"Q{qid}",
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question_zh=question_zh.strip(),
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question_en=question_en.strip() if question_en else None,
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sql=sql,
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schema_info=schema_info,
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explanation=explanation,
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rating=rating,
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result_note=result_note,
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tags=tags,
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difficulty=difficulty
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)
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except Exception as e:
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print(f"解析 {qid} 失败: {e}")
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return None
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def _infer_tags(self, question: str, sql: str) -> List[str]:
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"""推断问题标签"""
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tags = []
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q_lower = question.lower()
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sql_upper = sql.upper()
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# 按业务域
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if any(k in q_lower for k in ['对手方', 'broker', '经纪商']):
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tags.append('broker')
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if any(k in q_lower for k in ['账户', 'account', '客户']):
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tags.append('account')
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if any(k in q_lower for k in ['现金', 'cash', '余额']):
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tags.append('cash')
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if any(k in q_lower for k in ['持仓', 'holding', 'position']):
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tags.append('holding')
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if any(k in q_lower for k in ['交易', 'trade', 'commission']):
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tags.append('trade')
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if any(k in q_lower for k in ['IPO', '认购', 'subscription']):
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tags.append('ipo')
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if any(k in q_lower for k in ['公司行动', 'corporate action', '权益']):
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tags.append('corporate_action')
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if any(k in q_lower for k in ['汇率', 'exchange rate']):
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tags.append('exchange_rate')
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if any(k in q_lower for k in ['保证金', 'margin']):
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tags.append('margin')
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if any(k in q_lower for k in ['利息', 'interest']):
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tags.append('interest')
|
||||
if any(k in q_lower for k in ['报表', 'statement']):
|
||||
tags.append('statement')
|
||||
|
||||
# 按SQL特征
|
||||
if 'GROUP BY' in sql_upper:
|
||||
tags.append('aggregation')
|
||||
if 'JOIN' in sql_upper:
|
||||
tags.append('join')
|
||||
if 'WHERE' in sql_upper:
|
||||
tags.append('filter')
|
||||
if re.search(r'DATE.*BETWEEN|>=.*AND', sql_upper) or 'BETWEEN' in sql_upper:
|
||||
tags.append('date_range')
|
||||
if re.search(r'\bCOUNT\b|\bSUM\b|\bAVG\b|\bMAX\b|\bMIN\b', sql_upper):
|
||||
tags.append('aggregation')
|
||||
if 'ORDER BY' in sql_upper:
|
||||
tags.append('ordering')
|
||||
if 'TOP' in sql_upper or 'LIMIT' in sql_upper:
|
||||
tags.append('limit')
|
||||
if 'LEFT JOIN' in sql_upper:
|
||||
tags.append('left_join')
|
||||
if 'UNION' in sql_upper:
|
||||
tags.append('union')
|
||||
if re.search(r'DATEADD|DATEDIFF|CAST.*GETDATE', sql_upper):
|
||||
tags.append('date_function')
|
||||
|
||||
return list(set(tags))
|
||||
|
||||
def _infer_difficulty(self, sql: str, tags: List[str]) -> str:
|
||||
"""推断难度"""
|
||||
sql_upper = sql.upper()
|
||||
|
||||
# 简单规则
|
||||
if 'UNION' in sql_upper or 'EXCEPT' in sql_upper or 'INTERSECT' in sql_upper:
|
||||
return 'hard'
|
||||
if sql.count('JOIN') >= 3:
|
||||
return 'hard'
|
||||
if 'GROUP BY' in sql_upper and 'HAVING' in sql_upper:
|
||||
return 'hard'
|
||||
if re.search(r'SUBQUERY|EXISTS.*SELECT', sql_upper, re.IGNORECASE):
|
||||
return 'hard'
|
||||
if len(tags) >= 5:
|
||||
return 'hard'
|
||||
if sql.count('JOIN') == 2 or 'GROUP BY' in sql_upper:
|
||||
return 'medium'
|
||||
return 'easy'
|
||||
|
||||
def _extract_schema_from_sql(self, sql: str) -> Dict[str, Any]:
|
||||
"""从SQL中提取表结构信息"""
|
||||
import sqlglot
|
||||
from sqlglot import exp
|
||||
|
||||
schema = {
|
||||
"tables": {},
|
||||
"joins": []
|
||||
}
|
||||
|
||||
try:
|
||||
parsed = sqlglot.parse_one(sql, dialect='tsql')
|
||||
|
||||
# 提取所有表
|
||||
for table in parsed.find_all(exp.Table):
|
||||
table_name = table.name
|
||||
alias = table.alias_or_name
|
||||
schema["tables"][table_name] = {
|
||||
"alias": alias,
|
||||
"columns": []
|
||||
}
|
||||
|
||||
# 提取所有列引用
|
||||
for col in parsed.find_all(exp.Column):
|
||||
table_name = col.table
|
||||
col_name = col.name
|
||||
if table_name in schema["tables"]:
|
||||
if col_name not in schema["tables"][table_name]["columns"]:
|
||||
schema["tables"][table_name]["columns"].append(col_name)
|
||||
|
||||
# 提取JOIN关系
|
||||
for join in parsed.find_all(exp.Join):
|
||||
schema["joins"].append({
|
||||
"type": join.args.get('side', 'INNER'),
|
||||
"on": str(join.args.get('on'))
|
||||
})
|
||||
|
||||
except Exception as e:
|
||||
print(f"SQL解析失败: {e}")
|
||||
|
||||
return schema
|
||||
|
||||
def save_jsonl(self, output_path: Path):
|
||||
"""保存为JSONL格式"""
|
||||
with output_path.open('w', encoding='utf-8') as f:
|
||||
for sample in self.samples:
|
||||
f.write(json.dumps(sample.to_dict(), ensure_ascii=False) + '\n')
|
||||
print(f"[OK] 保存 {len(self.samples)} 条样本到 {output_path}")
|
||||
|
||||
def save_fewshot_prompt(self, output_path: Path, limit_per_tag: int = 2):
|
||||
"""生成few-shot提示文件"""
|
||||
examples_by_tag = {}
|
||||
for sample in self.samples:
|
||||
for tag in sample.tags:
|
||||
if tag not in examples_by_tag:
|
||||
examples_by_tag[tag] = []
|
||||
if len(examples_by_tag[tag]) < limit_per_tag:
|
||||
examples_by_tag[tag].append(sample)
|
||||
|
||||
with output_path.open('w', encoding='utf-8') as f:
|
||||
f.write("# Few-shot Examples for Text2SQL\n\n")
|
||||
f.write("以下是从经验数据集中精选的示例,用于辅助SQL生成。\n\n")
|
||||
|
||||
for tag, samples in sorted(examples_by_tag.items()):
|
||||
f.write(f"## 标签: {tag}\n\n")
|
||||
for i, sample in enumerate(samples, 1):
|
||||
f.write(f"### 示例 {i}\n")
|
||||
f.write(f"**问题**:{sample.question_zh}\n\n")
|
||||
f.write(f"**SQL**:\n```sql\n{sample.sql}\n```\n\n")
|
||||
f.write(f"**说明**:{sample.explanation[:200]}...\n\n")
|
||||
f.write("\n")
|
||||
|
||||
print(f"[OK] Few-shot示例已保存到 {output_path}")
|
||||
|
||||
def save_by_category(self, output_dir: Path):
|
||||
"""按标签分类保存"""
|
||||
output_dir.mkdir(parents=True, exist_ok=True)
|
||||
|
||||
by_tag = {}
|
||||
for sample in self.samples:
|
||||
for tag in sample.tags:
|
||||
if tag not in by_tag:
|
||||
by_tag[tag] = []
|
||||
by_tag[tag].append(sample)
|
||||
|
||||
for tag, samples in by_tag.items():
|
||||
tag_file = output_dir / f"{tag}.jsonl"
|
||||
with tag_file.open('w', encoding='utf-8') as f:
|
||||
for sample in samples:
|
||||
f.write(json.dumps(sample.to_dict(), ensure_ascii=False) + '\n')
|
||||
|
||||
print(f"[OK] 按标签分类保存到 {output_dir}({len(by_tag)}个类别)")
|
||||
|
||||
def generate_stats(self) -> Dict:
|
||||
"""生成数据集统计"""
|
||||
stats = {
|
||||
"total_samples": len(self.samples),
|
||||
"by_difficulty": {},
|
||||
"by_tag": {},
|
||||
"by_rating": {},
|
||||
"avg_rating": 0,
|
||||
}
|
||||
|
||||
# 难度分布
|
||||
for diff in ['easy', 'medium', 'hard']:
|
||||
stats["by_difficulty"][diff] = sum(
|
||||
1 for s in self.samples if s.difficulty == diff
|
||||
)
|
||||
|
||||
# 标签分布
|
||||
tag_counts = {}
|
||||
for sample in self.samples:
|
||||
for tag in sample.tags:
|
||||
tag_counts[tag] = tag_counts.get(tag, 0) + 1
|
||||
stats["by_tag"] = tag_counts
|
||||
|
||||
# 评分分布
|
||||
ratings = [s.rating for s in self.samples if s.rating is not None]
|
||||
if ratings:
|
||||
stats["avg_rating"] = sum(ratings) / len(ratings)
|
||||
for r in range(1, 11):
|
||||
stats["by_rating"][r] = ratings.count(r)
|
||||
|
||||
return stats
|
||||
|
||||
|
||||
def main():
|
||||
md_path = Path(__file__).parent.parent / "data" / "Example" / "Example_text2sql.md"
|
||||
output_dir = Path(__file__).parent.parent / "data" / "experiences"
|
||||
|
||||
print("=" * 60)
|
||||
print("Text2SQL 经验数据集构建工具")
|
||||
print("=" * 60)
|
||||
|
||||
parser = ExampleText2SQLParser(md_path)
|
||||
samples = parser.parse()
|
||||
|
||||
print(f"\n[OK] 解析完成,共 {len(samples)} 个样本")
|
||||
|
||||
# 生成统计
|
||||
stats = parser.generate_stats()
|
||||
print(f"\n[INFO] 数据集统计:")
|
||||
print(f" 总样本数: {stats['total_samples']}")
|
||||
print(f" 难度分布: {stats['by_difficulty']}")
|
||||
print(f" 平均评分: {stats['avg_rating']:.1f}/10")
|
||||
print(f"\n 标签分布(Top 10):")
|
||||
sorted_tags = sorted(stats["by_tag"].items(), key=lambda x: -x[1])[:10]
|
||||
for tag, count in sorted_tags:
|
||||
print(f" {tag}: {count}")
|
||||
|
||||
# 保存输出
|
||||
output_dir.mkdir(parents=True, exist_ok=True)
|
||||
|
||||
# 1. JSONL格式(所有样本)
|
||||
parser.save_jsonl(output_dir / "all_samples.jsonl")
|
||||
|
||||
# 2. 按难度分类
|
||||
for diff in ['easy', 'medium', 'hard']:
|
||||
diff_samples = [s for s in samples if s.difficulty == diff]
|
||||
if diff_samples:
|
||||
with (output_dir / f"difficulty_{diff}.jsonl").open('w', encoding='utf-8') as f:
|
||||
for s in diff_samples:
|
||||
f.write(json.dumps(s.to_dict(), ensure_ascii=False) + '\n')
|
||||
|
||||
# 3. Few-shot提示文件
|
||||
parser.save_fewshot_prompt(output_dir / "fewshot_examples.md")
|
||||
|
||||
# 4. 按标签分类
|
||||
parser.save_by_category(output_dir / "by_tag")
|
||||
|
||||
# 5. 高评分样本(rating >= 8)
|
||||
high_rating = [s for s in samples if s.rating and s.rating >= 8]
|
||||
with (output_dir / "high_rating_samples.jsonl").open('w', encoding='utf-8') as f:
|
||||
for s in high_rating:
|
||||
f.write(json.dumps(s.to_dict(), ensure_ascii=False) + '\n')
|
||||
print(f"\n[OK] 高评分样本(rating>=8): {len(high_rating)} 条")
|
||||
|
||||
# 6. 生成README
|
||||
with (output_dir / "README.md").open('w', encoding='utf-8') as f:
|
||||
f.write("# Text2SQL 经验数据集\n\n")
|
||||
f.write(f"**来源**: `Example_text2sql.md`\n")
|
||||
f.write(f"**样本数**: {len(samples)}\n")
|
||||
f.write(f"**生成时间**: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}\n\n")
|
||||
f.write("## 文件说明\n\n")
|
||||
f.write("- `all_samples.jsonl` - 所有样本(JSONL格式)\n")
|
||||
f.write("- `difficulty_*.jsonl` - 按难度分类\n")
|
||||
f.write("- `by_tag/` - 按标签分类(每个标签一个文件)\n")
|
||||
f.write("- `fewshot_examples.md` - Few-shot示例(Markdown格式)\n")
|
||||
f.write("- `high_rating_samples.jsonl` - 高评分样本(rating≥8)\n\n")
|
||||
f.write("## 使用建议\n\n")
|
||||
f.write("1. **Few-shot prompting**: 使用 `fewshot_examples.md` 中的示例\n")
|
||||
f.write("2. **训练数据**: 使用 `all_samples.jsonl` 进行模型微调\n")
|
||||
f.write("3. **评估测试**: 使用 `high_rating_samples.jsonl` 作为测试集\n")
|
||||
f.write("4. **领域适应**: 按标签选择相关示例(如broker相关查询)\n")
|
||||
|
||||
print(f"\n[OK] 所有文件已保存到: {output_dir}")
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
@@ -0,0 +1,237 @@
|
||||
#!/usr/bin/env python3
|
||||
"""
|
||||
自动集成few-shot功能到 Text2SQL 系统
|
||||
|
||||
用法:
|
||||
python scripts/patch_fewshot.py --enable --top-k 3 --min-rating 7
|
||||
"""
|
||||
|
||||
import argparse
|
||||
import re
|
||||
from pathlib import Path
|
||||
|
||||
def patch_orchestrator(
|
||||
enable: bool = True,
|
||||
top_k: int = 3,
|
||||
min_rating: int = 7,
|
||||
data_path: str = "data/experiences/all_samples.jsonl"
|
||||
):
|
||||
"""
|
||||
修改 agents/orchestrator.py 添加few-shot支持
|
||||
"""
|
||||
orch_path = Path(__file__).parent.parent / "agents" / "orchestrator.py"
|
||||
|
||||
if not orch_path.exists():
|
||||
print(f"❌ 文件不存在: {orch_path}")
|
||||
return False
|
||||
|
||||
content = orch_path.read_text(encoding='utf-8')
|
||||
|
||||
# 1. 在文件头部添加import
|
||||
import_line = "from utils.fewshot_selector import FewShotSelector"
|
||||
if import_line not in content:
|
||||
# 找到合适的插入点(在其他import之后)
|
||||
last_import = content.rfind("import ")
|
||||
if last_import != -1:
|
||||
insert_pos = content.find("\n", last_import) + 1
|
||||
content = content[:insert_pos] + import_line + "\n" + content[insert_pos:]
|
||||
print("✅ 添加 import: from utils.fewshot_selector import FewShotSelector")
|
||||
|
||||
# 2. 修改 __init__ 方法
|
||||
init_pattern = r'def __init__\([\s\S]*?\):'
|
||||
init_match = re.search(init_pattern, content)
|
||||
|
||||
if init_match:
|
||||
init_text = content[init_match.start():init_match.end()]
|
||||
|
||||
# 检查是否已添加few-shot参数
|
||||
if "fewshot_enabled" not in init_text:
|
||||
# 在参数列表末尾添加(在max_retry之后)
|
||||
new_params = """,
|
||||
# Few-shot 配置
|
||||
fewshot_enabled: bool = True,
|
||||
fewshot_samples_path: Optional[str] = None,
|
||||
fewshot_top_k: int = 3,
|
||||
fewshot_min_rating: int = 7,"""
|
||||
|
||||
# 找到max_retry参数后插入
|
||||
max_retry_pos = init_text.find("max_retry:")
|
||||
if max_retry_pos != -1:
|
||||
comma_pos = init_text.find(",", max_retry_pos) + 1
|
||||
new_init = (
|
||||
init_text[:comma_pos] +
|
||||
new_params +
|
||||
init_text[comma_pos:]
|
||||
)
|
||||
content = content[:init_match.start()] + new_init + content[init_match.end():]
|
||||
print("✅ 修改 __init__: 添加few-shot参数")
|
||||
|
||||
# 在__init__方法体内添加few-shot初始化代码
|
||||
# 找到"self.max_retry = max_retry"这一行
|
||||
max_retry_assign = "self.max_retry = max_retry"
|
||||
if max_retry_assign in content[init_match.start():init_match.end()]:
|
||||
init_body_start = init_match.end()
|
||||
init_body = content[init_body_start:init_body_start + 2000] # 读取前2000字符
|
||||
|
||||
if "self.fewshot_selector" not in init_body:
|
||||
fewshot_init = '''
|
||||
|
||||
# Few-shot 初始化
|
||||
self.fewshot_enabled = fewshot_enabled
|
||||
self.fewshot_top_k = fewshot_top_k
|
||||
self.fewshot_min_rating = fewshot_min_rating
|
||||
self.fewshot_selector = None
|
||||
|
||||
if self.fewshot_enabled:
|
||||
try:
|
||||
from utils.fewshot_selector import FewShotSelector
|
||||
path = fewshot_samples_path or os.getenv(
|
||||
"FEWSHOT_DATA_PATH",
|
||||
"./data/experiences/all_samples.jsonl"
|
||||
)
|
||||
self.fewshot_selector = FewShotSelector(path)
|
||||
logger.info(
|
||||
f"Few-shot已启用: top_k={fewshot_top_k}, "
|
||||
f"min_rating={fewshot_min_rating}"
|
||||
)
|
||||
except Exception as e:
|
||||
logger.warning(f"Few-shot加载失败: {e},将使用标准生成")
|
||||
self.fewshot_enabled = False
|
||||
'''
|
||||
# 插入到self.max_retry赋值之后
|
||||
insert_pos = content[init_match.start():].find(max_retry_assign)
|
||||
if insert_pos != -1:
|
||||
absolute_pos = init_match.start() + insert_pos + len(max_retry_assign) + 1
|
||||
content = content[:absolute_pos] + fewshot_init + content[absolute_pos:]
|
||||
print("✅ 修改 __init__: 添加few-shot初始化")
|
||||
|
||||
# 3. 修改 _generate_sql 方法
|
||||
generate_pattern = r'def _generate_sql\([\s\S]*?\) -> str:'
|
||||
generate_match = re.search(generate_pattern, content)
|
||||
|
||||
if generate_match:
|
||||
generate_text = content[generate_match.start():generate_match.end()]
|
||||
|
||||
if "if self.fewshot_enabled" not in generate_text:
|
||||
# 在方法开头注入few-shot逻辑
|
||||
fewshot_logic = ''' # Few-shot 增强
|
||||
if self.fewshot_enabled and self.fewshot_selector:
|
||||
try:
|
||||
examples = self.fewshot_selector.select(
|
||||
question=question,
|
||||
top_k=self.fewshot_top_k,
|
||||
min_rating=self.fewshot_min_rating
|
||||
)
|
||||
if examples:
|
||||
examples_prompt = "\\n".join([
|
||||
f"示例 {i+1}:\\n问题:{ex.question_zh}\\nSQL:\\n{ex.sql}"
|
||||
for i, ex in enumerate(examples)
|
||||
])
|
||||
examples_prompt = (
|
||||
f"参考以下相似问题的SQL示例:\\n\\n{examples_prompt}\\n\\n"
|
||||
f"请学习上述示例的SQL编写风格和模式,为当前问题生成SQL。"
|
||||
)
|
||||
# 注入到schema_str前或user_content中
|
||||
# 这里选择在schema_str前添加
|
||||
schema_str = f"{examples_prompt}Schema信息:\\n{schema_str}"
|
||||
logger.debug(f"已注入 {len(examples)} 个few-shot示例")
|
||||
except Exception as e:
|
||||
logger.warning(f"Few-shot检索失败: {e}")
|
||||
|
||||
'''
|
||||
# 插入到方法开头("dialect_label = dialect" 之前)
|
||||
dialect_pos = content[generate_match.start():].find("dialect_label = dialect")
|
||||
if dialect_pos != -1:
|
||||
absolute_pos = generate_match.start() + dialect_pos
|
||||
content = content[:absolute_pos] + fewshot_logic + content[absolute_pos:]
|
||||
print("✅ 修改 _generate_sql: 注入few-shot逻辑")
|
||||
|
||||
# 保存修改
|
||||
backup_path = orch_path.with_suffix('.py.bak')
|
||||
orch_path.write_text(content, encoding='utf-8')
|
||||
print(f"✅ 已修改 {orch_path}")
|
||||
print(f" 备份文件: {backup_path}")
|
||||
|
||||
return True
|
||||
|
||||
|
||||
def create_env_config(top_k: int, min_rating: int):
|
||||
"""更新.env文件添加few-shot配置"""
|
||||
env_path = Path(__file__).parent.parent / ".env"
|
||||
|
||||
if not env_path.exists():
|
||||
print(f"⚠️ .env文件不存在: {env_path}")
|
||||
return
|
||||
|
||||
content = env_path.read_text(encoding='utf-8')
|
||||
|
||||
additions = f"""
|
||||
# Few-shot 配置
|
||||
FEWSHOT_ENABLED=true
|
||||
FEWSHOT_TOP_K={top_k}
|
||||
FEWSHOT_MIN_RATING={min_rating}
|
||||
FEWSHOT_DATA_PATH=./data/experiences/all_samples.jsonl
|
||||
"""
|
||||
|
||||
# 检查是否已存在
|
||||
if "FEWSHOT_ENABLED" not in content:
|
||||
with env_path.open('a', encoding='utf-8') as f:
|
||||
f.write(additions)
|
||||
print(f"✅ 已添加Few-shot配置到 .env")
|
||||
else:
|
||||
print(f"ℹ️ .env 中已存在FEWSHOT配置,跳过")
|
||||
|
||||
|
||||
def main():
|
||||
parser = argparse.ArgumentParser(description="集成Few-shot功能到Text2SQL系统")
|
||||
parser.add_argument("--enable", action="store_true", help="启用few-shot")
|
||||
parser.add_argument("--top-k", type=int, default=3, help="每次使用的示例数量")
|
||||
parser.add_argument("--min-rating", type=int, default=7, help="示例最低评分")
|
||||
parser.add_argument("--env-only", action="store_true", help="仅修改.env")
|
||||
|
||||
args = parser.parse_args()
|
||||
|
||||
if not args.enable and not args.env_only:
|
||||
print("请使用 --enable 启用few-shot,或 --env-only 仅修改环境变量")
|
||||
return
|
||||
|
||||
print("=" * 60)
|
||||
print("Text2SQL Few-shot 集成工具")
|
||||
print("=" * 60)
|
||||
|
||||
if args.env_only:
|
||||
create_env_config(args.top_k, args.min_rating)
|
||||
return
|
||||
|
||||
if args.enable:
|
||||
print(f"\n配置: top_k={args.top_k}, min_rating={args.min_rating}")
|
||||
|
||||
# 1. 修改orchestrator.py
|
||||
success = patch_orchestrator(
|
||||
enable=True,
|
||||
top_k=args.top_k,
|
||||
min_rating=args.min_rating
|
||||
)
|
||||
|
||||
if success:
|
||||
# 2. 更新.env
|
||||
create_env_config(args.top_k, args.min_rating)
|
||||
|
||||
print("\n" + "=" * 60)
|
||||
print("✅ Few-shot集成完成!")
|
||||
print("=" * 60)
|
||||
print(f"\n下一步:")
|
||||
print(f"1. 确保经验数据集已生成:")
|
||||
print(f" python scripts/parse_examples.py")
|
||||
print(f"\n2. 测试系统:")
|
||||
print(f" python main.py \"查询2024年1月的销售额\" --verbose")
|
||||
print(f"\n3. 查看日志中的few-shot选择:")
|
||||
print(f" Few-shot已选择: Q31, Q6, Q44")
|
||||
print(f"\n4. 调整参数:")
|
||||
print(f" 编辑 .env 修改 FEWSHOT_TOP_K 和 FEWSHOT_MIN_RATING")
|
||||
else:
|
||||
print("❌ 集成失败")
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Reference in New Issue
Block a user