(improvement)(headless)Optimize prompts and exemplars

headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/parser/llm/OnePassSCSqlGenStrategy.java

@@ -65,9 +65,10 @@ public class OnePassSCSqlGenStrategy extends SqlGenStrategy {
                 + "please convert it to a SQL query so that relevant answer could be returned to the user "
                 + "by executing the SQL query against underlying database.\n"
                 + "#Rules:\n"
-                + "1.Always use `数据日期` as the date field.\n"
-                + "2.Always use `datediff` function to calculate date range.\n"
-                + "3.Only output SQL statement.\n"
+                + "1.ALWAYS use `数据日期` as the date field.\n"
+                + "2.ALWAYS use `datediff()` as the date function.\n"
+                + "3.DO NOT specify date filter in the where clause if not explicitly mentioned in the query.\n"
+                + "4.ONLY output SQL statement.\n"
                 + "#Exemplars:\n%s"
                 + "#UserQuery: %s "
                 + "#DatabaseMetadata: %s "

headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/parser/llm/PromptHelper.java

@@ -63,10 +63,10 @@ public class PromptHelper {
             String fieldValue = value.getFieldValue();
             priorLinkingList.add("‘" + fieldValue + "‘是一个‘" + fieldName + "‘");
         }
-        String currentDataStr = "current date is " + currentDate;
+        String currentDataStr = "当前的日期是" + currentDate;
         String linkingListStr = String.join("，", priorLinkingList);
         String termStr = getTermStr(llmReq);
-        String questionAugmented = String.format("%s (补充信息:%s . %s . %s) (备注: %s)", llmReq.getQueryText(),
+        String questionAugmented = String.format("%s (补充信息:%s;%s;%s;%s)", llmReq.getQueryText(),
                 linkingListStr, currentDataStr, termStr, priorExts);
 
         return Pair.of(dbSchema, questionAugmented);