enh: last_row is keep order function

source/libs/function/src/builtins.c

@@ -480,14 +480,16 @@ static int32_t translateNowToday(SFunctionNode* pFunc, char* pErrBuf, int32_t le
     return code;
   }
 
-  pFunc->node.resType = (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes, .type = TSDB_DATA_TYPE_TIMESTAMP};
+  pFunc->node.resType =
+      (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes, .type = TSDB_DATA_TYPE_TIMESTAMP};
   return TSDB_CODE_SUCCESS;
 }
 
 static int32_t translateTimePseudoColumn(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
   // pseudo column do not need to check parameters
 
-  pFunc->node.resType = (SDataType){.bytes =tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes, .type = TSDB_DATA_TYPE_TIMESTAMP};
+  pFunc->node.resType =
+      (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes, .type = TSDB_DATA_TYPE_TIMESTAMP};
   return TSDB_CODE_SUCCESS;
 }
 
@@ -509,13 +511,11 @@ static int32_t translatePercentile(SFunctionNode* pFunc, char* pErrBuf, int32_t
     return invaildFuncParaNumErrMsg(pErrBuf, len, pFunc->functionName);
   }
 
-
   uint8_t para1Type = ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 0))->resType.type;
   if (!IS_NUMERIC_TYPE(para1Type)) {
     return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
   }
 
-
   for (int32_t i = 1; i < numOfParams; ++i) {
     SValueNode* pValue = (SValueNode*)nodesListGetNode(pFunc->pParameterList, i);
     pValue->notReserved = true;
@@ -2491,7 +2491,7 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
   {
     .name = "last_row",
     .type = FUNCTION_TYPE_LAST_ROW,
-    .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_MULTI_RES_FUNC | FUNC_MGT_SELECT_FUNC | FUNC_MGT_IMPLICIT_TS_FUNC,
+    .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_MULTI_RES_FUNC | FUNC_MGT_SELECT_FUNC | FUNC_MGT_IMPLICIT_TS_FUNC | FUNC_MGT_KEEP_ORDER_FUNC,
     .translateFunc = translateFirstLast,
     .dynDataRequiredFunc = lastDynDataReq,
     .getEnvFunc   = getFirstLastFuncEnv,

source/libs/parser/src/parTranslater.c

@@ -755,7 +755,8 @@ static bool isPrimaryKeyImpl(SNode* pExpr) {
   } else if (QUERY_NODE_FUNCTION == nodeType(pExpr)) {
     SFunctionNode* pFunc = (SFunctionNode*)pExpr;
     if (FUNCTION_TYPE_SELECT_VALUE == pFunc->funcType || FUNCTION_TYPE_GROUP_KEY == pFunc->funcType ||
-        FUNCTION_TYPE_FIRST == pFunc->funcType || FUNCTION_TYPE_LAST == pFunc->funcType) {
+        FUNCTION_TYPE_FIRST == pFunc->funcType || FUNCTION_TYPE_LAST == pFunc->funcType ||
+        FUNCTION_TYPE_LAST_ROW == pFunc->funcType) {
       return isPrimaryKeyImpl(nodesListGetNode(pFunc->pParameterList, 0));
     } else if (FUNCTION_TYPE_WSTART == pFunc->funcType || FUNCTION_TYPE_WEND == pFunc->funcType ||
                FUNCTION_TYPE_IROWTS == pFunc->funcType) {