Merge pull request #9097 from taosdata/fix/TD-11978

Fix/td 11978  fix core dump if there is no parameters in elapsed function

src/client/src/tscSQLParser.c

@@ -2759,7 +2759,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
       if (pItem->pNode->Expr.paramList == NULL ||
           (functionId != TSDB_FUNC_LEASTSQR && functionId != TSDB_FUNC_DERIVATIVE && functionId != TSDB_FUNC_ELAPSED && numOfParams != 1) ||
           ((functionId == TSDB_FUNC_LEASTSQR || functionId == TSDB_FUNC_DERIVATIVE) && numOfParams != 3) ||
-          (functionId == TSDB_FUNC_ELAPSED && numOfParams > 2)) {
+          (functionId == TSDB_FUNC_ELAPSED && numOfParams != 1 && numOfParams != 2)) {
         return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg2);
       }
 

tests/pytest/functions/function_elapsed_case.py

@@ -320,6 +320,8 @@ class ElapsedCase:
 
     def selectIllegalTest(self):
         tdSql.execute("use wxy_db")
+        tdSql.error("select elapsed() from t1")
+        tdSql.error("select elapsed(,) from t1")
         tdSql.error("select elapsed(1) from t1 where ts > '2021-11-22 00:00:00' and ts < '2021-11-23 00:00:00'")
         tdSql.error("select elapsed('2021-11-18 00:00:10') from t1 where ts > '2021-11-22 00:00:00' and ts < '2021-11-23 00:00:00'")
         tdSql.error("select elapsed(now) from t1 where ts > '2021-11-22 00:00:00' and ts < '2021-11-23 00:00:00'")