diff --git a/source/libs/executor/src/executil.c b/source/libs/executor/src/executil.c
index 77a18028b4171a9d322bbd72adc99c79b36da2b5..b493f3222e5c90e163fb98c8a3500bb3998e9388 100644
--- a/source/libs/executor/src/executil.c
+++ b/source/libs/executor/src/executil.c
@@ -235,7 +235,7 @@ int32_t getTableList(void* metaHandle, SScanPhysiNode* pScanNode, STableListInfo
         terrno = code;
         return code;
       } else {
-        qDebug("sucess to  get tableIds, size: %d, suid: %" PRIu64 "", (int)taosArrayGetSize(res), tableUid);
+        qDebug("success to  get tableIds, size: %d, suid: %" PRIu64 "", (int)taosArrayGetSize(res), tableUid);
       }
 
       for (int i = 0; i < taosArrayGetSize(res); i++) {
@@ -319,12 +319,10 @@ SArray* extractColMatchInfo(SNodeList* pNodeList, SDataBlockDescNode* pOutputNod
       continue;
     }
 
-    bool foundSource = false;
     SColMatchInfo* info = NULL;
     for (int32_t j = 0; j < taosArrayGetSize(pList); ++j) {
       info = taosArrayGet(pList, j);
       if (info->targetSlotId == pNode->slotId) {
-        foundSource = true;
         break;
       }
     }
@@ -332,7 +330,6 @@ SArray* extractColMatchInfo(SNodeList* pNodeList, SDataBlockDescNode* pOutputNod
     if (pNode->output) {
       (*numOfOutputCols) += 1;
     } else {
-      ASSERT(foundSource);
       info->output = false;
     }
   }
@@ -595,10 +592,10 @@ void relocateColumnData(SSDataBlock* pBlock, const SArray* pColMatchInfo, SArray
   while (i < numOfSrcCols && j < taosArrayGetSize(pColMatchInfo)) {
     SColumnInfoData* p = taosArrayGet(pCols, i);
     SColMatchInfo*   pmInfo = taosArrayGet(pColMatchInfo, j);
-//    if (!pmInfo->output) {
-//      j++;
-//      continue;
-//    }
+    if (!pmInfo->output) {
+      j++;
+      continue;
+    }
 
     if (p->info.colId == pmInfo->colId) {
       SColumnInfoData* pDst = taosArrayGet(pBlock->pDataBlock, pmInfo->targetSlotId);
diff --git a/source/libs/planner/src/planOptimizer.c b/source/libs/planner/src/planOptimizer.c
index be6186f8913a868de47bd254de0a91e8ac7ff7b7..02c17792248b1f5ba5f4b6e4c9bd9d8158c68349 100644
--- a/source/libs/planner/src/planOptimizer.c
+++ b/source/libs/planner/src/planOptimizer.c
@@ -1092,14 +1092,27 @@ static bool eliminateProjOptMayBeOptimized(SLogicNode* pNode) {
     return false;
   }
 
+  SHashObj* pProjColNameHash = taosHashInit(16, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_NO_LOCK);
   SNode* pProjection;
   FOREACH(pProjection, pProjectNode->pProjections) {
     SExprNode* pExprNode = (SExprNode*)pProjection;
     if (QUERY_NODE_COLUMN != nodeType(pExprNode)) {
+      taosHashCleanup(pProjColNameHash);
       return false;
     }
+
+    char* projColumnName = ((SColumnNode*)pProjection)->colName;
+    int32_t* pExist = taosHashGet(pProjColNameHash, projColumnName, strlen(projColumnName));
+    if (NULL != pExist) {
+      taosHashCleanup(pProjColNameHash);
+      return false;
+    } else {
+      int32_t exist = 1;
+      taosHashPut(pProjColNameHash, projColumnName, strlen(projColumnName), &exist, sizeof(exist));
+    }
   }
 
+  taosHashCleanup(pProjColNameHash);
   return true;
 }
 
@@ -1110,13 +1123,14 @@ static int32_t eliminateProjOptimizeImpl(SOptimizeContext* pCxt, SLogicSubplan*
   SNode* pProjection = NULL;
   FOREACH(pProjection, pProjectNode->pProjections) {
     SColumnNode* projColumn = (SColumnNode*)pProjection;
+    char* projColumnName = projColumn->colName;
     SNode* pChildTarget = NULL;
     FOREACH(pChildTarget, pChild->pTargets) {
       SExprNode* childExpr = (SExprNode*)pChildTarget;
-      char* projColumnName = projColumn->colName;
       if (QUERY_NODE_COLUMN == nodeType(childExpr) && strcmp(projColumnName, ((SColumnNode*)childExpr)->colName) == 0 ||
           strcmp(projColumnName, childExpr->aliasName) == 0) {
         nodesListAppend(pNewChildTargets, nodesCloneNode(pChildTarget));
+        break;
       }
     }
   }
diff --git a/source/libs/qworker/src/qworker.c b/source/libs/qworker/src/qworker.c
index 800cc4c6e59ff7da06f699ce6fb8294819873c14..9161f4456af4b30bc251a3f9923dd9fb75c0628b 100644
--- a/source/libs/qworker/src/qworker.c
+++ b/source/libs/qworker/src/qworker.c
@@ -526,7 +526,7 @@ int32_t qwProcessQuery(QW_FPARAMS_DEF, SQWMsg *qwMsg, int8_t taskType, int8_t ex
   atomic_store_8(&ctx->taskType, taskType);
   atomic_store_8(&ctx->explain, explain);
 
-  /*QW_TASK_DLOGL("subplan json string, len:%d, %s", qwMsg->msgLen, qwMsg->msg);*/
+  QW_TASK_DLOGL("subplan json string, len:%d, %s", qwMsg->msgLen, qwMsg->msg);
 
   code = qStringToSubplan(qwMsg->msg, &plan);
   if (TSDB_CODE_SUCCESS != code) {