解决chat api进行非数据库查询时输出Based on general knowledge.

custompgvector/pgvector.py

@@ -670,7 +670,8 @@ class PG_VectorStore(VannaBase):
             
             # 检查过滤后结果是否为空
             if results and not filtered_results:
-                self.logger.warning(f"向量查询找到了 {len(results)} 条错误SQL示例，但全部被阈值过滤掉，问题: {question}")
+                self.logger.warning(f"向量查询找到了 {len(results)} 条错误SQL示例，但全部被阈值过滤掉.")
+                self.logger.warning(f"问题: {question}")
 
             return filtered_results
             

test/custom_react_agent/agent.py

@@ -1044,18 +1044,16 @@ class CustomReactAgent:
 === DECISION RULES ===
 1. If the question involves data within the above business scope (service areas, branches, revenue, traffic flow, etc.), use the generate_sql tool
 2. If the question is about general knowledge (like "when do lychees ripen?", weather, historical events, etc.), answer directly based on your knowledge WITHOUT using database tools
-3. When answering general knowledge questions, clearly indicate that this is based on general knowledge, not database data
+3. When answering general knowledge questions, provide clear and helpful answers without any special prefixes
 
 === FALLBACK STRATEGY ===
 When generate_sql returns an error message or when queries return no results:
 1. First, check if the question is within the database scope described above
 2. For questions clearly OUTSIDE the database scope (world events, general knowledge, etc.):
    - Provide the answer based on your knowledge immediately
-   - CLEARLY indicate this is based on general knowledge, not database data
-   - Use format: "Based on general knowledge (not database data): [answer]"
+   - Give a direct, natural answer without any prefixes or disclaimers
 3. For questions within database scope but queries return no results:
-   - If it's a reasonable question that might have a general answer, provide it
-   - Still indicate the source: "Based on general knowledge (database had no results): [answer]"
+   - If it's a reasonable question that might have a general answer, provide it naturally
 4. For questions that definitely require specific database data:
    - Acknowledge the limitation and suggest the data may not be available
    - Do not attempt to guess or fabricate specific data

test/custom_react_agent/config.py

@@ -10,9 +10,12 @@ PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(_
 
 # --- LLM 配置 ---
 # 在这里写死你的千问API Key
+# qwen-plus
+# qwen3-235b-a22b
+# qwen3-30b-a3b
 QWEN_API_KEY = "sk-db68e37f00974031935395315bfe07f0"
 QWEN_BASE_URL = "https://dashscope.aliyuncs.com/compatible-mode/v1"
-QWEN_MODEL = "qwen3-235b-a22b"
+QWEN_MODEL = "qwen3-30b-a3b"
 
 # --- Redis 配置 ---
 REDIS_URL = "redis://localhost:6379"