Update app.py

app.py

@@ -670,9 +670,15 @@ class TextToSQLSystem:
             year_a, year_b = years_unique[0], years_unique[1]
             # 嘗試抓買家名稱（英文/數字/符號），若沒有則不加 buyer 條件
             buyer_name = None
-            buyer_match = re.search(r"(?:買家|买家|buyer)\s*[:：]?\s*([A-Za-z0-9&.\- ]+)", question, re.IGNORECASE)
-            if buyer_match:
-                buyer_name = buyer_match.group(1).strip()
+            # 1) 優先解析明確條件：BuyerName LIKE '%...%'
+            m_like = re.search(r"BuyerName\s+LIKE\s*'%([^']+)%'", question, re.IGNORECASE)
+            if m_like:
+                buyer_name = m_like.group(1).strip()
+            else:
+                # 2) 解析自然語言：避免 'BuyerName' 被誤判成 'buyer'
+                buyer_match = re.search(r"(?:買家|买家|客戶|客户|\bbuyer\b(?!name))\s*[:：]?\s*([A-Za-z0-9&.\- ]+)", question, re.IGNORECASE)
+                if buyer_match:
+                    buyer_name = buyer_match.group(1).strip()
 
             # 判斷偏向金額或件數
             amount_intent = any(kw in q_lower for kw in ["金額", "金钱", "amount", "營收", "業績", "營業額", "銷售額", "revenue"])