Merge pull request #21830 from taosdata/fix/TD-24287

fix: fix userAlias issue when keepColumnName is set to true

include/libs/nodes/querynodes.h

@@ -52,6 +52,7 @@ typedef struct SExprNode {
   SArray*   pAssociation;
   bool      orderAlias;
   bool      asAlias;
+  bool      asParam;
 } SExprNode;
 
 typedef enum EColumnType {

source/libs/nodes/src/nodesTraverseFuncs.c

@@ -214,6 +214,18 @@ void nodesWalkExprsPostOrder(SNodeList* pList, FNodeWalker walker, void* pContex
   (void)walkExprs(pList, TRAVERSAL_POSTORDER, walker, pContext);
 }
 
+static void checkParamIsFunc(SFunctionNode *pFunc) {
+  int32_t numOfParams = LIST_LENGTH(pFunc->pParameterList);
+  if (numOfParams > 1) {
+    for (int32_t i = 0; i < numOfParams; ++i) {
+      SNode* pPara = nodesListGetNode(pFunc->pParameterList, i);
+      if (nodeType(pPara) == QUERY_NODE_FUNCTION) {
+        ((SFunctionNode *)pPara)->node.asParam = true;
+      }
+    }
+  }
+}
+
 static EDealRes rewriteExprs(SNodeList* pNodeList, ETraversalOrder order, FNodeRewriter rewriter, void* pContext);
 
 static EDealRes rewriteExpr(SNode** pRawNode, ETraversalOrder order, FNodeRewriter rewriter, void* pContext) {
@@ -248,9 +260,12 @@ static EDealRes rewriteExpr(SNode** pRawNode, ETraversalOrder order, FNodeRewrit
     case QUERY_NODE_LOGIC_CONDITION:
       res = rewriteExprs(((SLogicConditionNode*)pNode)->pParameterList, order, rewriter, pContext);
       break;
-    case QUERY_NODE_FUNCTION:
-      res = rewriteExprs(((SFunctionNode*)pNode)->pParameterList, order, rewriter, pContext);
+    case QUERY_NODE_FUNCTION: {
+      SFunctionNode* pFunc = (SFunctionNode*)pNode;
+      checkParamIsFunc(pFunc);
+      res = rewriteExprs(pFunc->pParameterList, order, rewriter, pContext);
       break;
+    }
     case QUERY_NODE_REAL_TABLE:
     case QUERY_NODE_TEMP_TABLE:
       break;  // todo

source/libs/parser/src/parTranslater.c

@@ -1760,7 +1760,7 @@ static int32_t translateMultiResFunc(STranslateContext* pCxt, SFunctionNode* pFu
                                      "%s(*) is only supported in SELECTed list", pFunc->functionName);
     }
   }
-  if (tsKeepColumnName && 1 == LIST_LENGTH(pFunc->pParameterList) && !pFunc->node.asAlias) {
+  if (tsKeepColumnName && 1 == LIST_LENGTH(pFunc->pParameterList) && !pFunc->node.asAlias && !pFunc->node.asParam) {
     strcpy(pFunc->node.userAlias, ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 0))->userAlias);
     strcpy(pFunc->node.aliasName, pFunc->node.userAlias);
   }

tests/system-test/2-query/Timediff.py

@@ -4,6 +4,8 @@ from util.cases import *
 from util.gettime import *
 class TDTestCase:
 
+    updatecfgDict = {'keepColumnName': 1}
+
     def init(self, conn, logSql, replicaVar=1):
         self.replicaVar = int(replicaVar)
         tdLog.debug(f"start to excute {__file__}")
@@ -185,8 +187,16 @@ class TDTestCase:
             elif precision.lower() == 'ns':
                 for i in range(len(self.ts_str)):
                     tdSql.checkEqual(tdSql.queryResult[i][0],int(((date_time[i])-self.subtractor*1000000000)))
+    def function_multi_res_param(self):
+        tdSql.execute(f'drop database if exists {self.dbname}')
+        tdSql.execute(f'create database {self.dbname}')
+        tdSql.execute(f'use {self.dbname}')
+        tdSql.execute(f'create table {self.ntbname} (ts timestamp,c0 int)')
+        tdSql.execute(f'insert into {self.ntbname} values("2023-01-01 00:00:00",1)')
+        tdSql.execute(f'insert into {self.ntbname} values("2023-01-01 00:01:00",2)')
 
-
+        tdSql.query(f'select timediff(last(ts), first(ts)) from {self.ntbname}')
+        tdSql.checkData(0, 0, 60000)
 
 
 
@@ -194,6 +204,7 @@ class TDTestCase:
         self.function_check_ntb()
         self.function_check_stb()
         self.function_without_param()
+        self.function_multi_res_param()
 
     def stop(self):
         tdSql.close()