diff --git a/include/libs/catalog/catalog.h b/include/libs/catalog/catalog.h
index b88afcb39df49c518b41968eee74638ca2143ae1..30d1bd0a518415d98b7358337c94834aa70716a2 100644
--- a/include/libs/catalog/catalog.h
+++ b/include/libs/catalog/catalog.h
@@ -51,7 +51,7 @@ typedef struct SMetaData {
   SArray    *pTableMeta;  // STableMeta array
   SArray    *pVgroupInfo; // SVgroupInfo list
   SArray    *pUdfList;    // udf info list
-  SArray    *pEpSetList;  // qnode epset list, SArray<SEpSet>
+  SArray    *pQnodeList;  // qnode list, SArray<SQueryNodeAddr>
 } SMetaData;
 
 typedef struct SCatalogCfg {
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 6b3a13c884e9914b9a143ed277aa9a2f6cea941e..90c5c03fa8f1e24321bbb542765885376226735c 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -2084,10 +2084,15 @@ int32_t tDeserializeSQnodeListRsp(void *buf, int32_t bufLen, SQnodeListRsp *pRsp
   if (tStartDecode(&decoder) < 0) return -1;
   int32_t num = 0;
   if (tDecodeI32(&decoder, &num) < 0) return -1;
-  pRsp->addrsList = taosArrayInit(num, sizeof(SQueryNodeAddr));
-  if (NULL == pRsp->addrsList) return -1;
+  if (NULL == pRsp->addrsList) {
+    pRsp->addrsList = taosArrayInit(num, sizeof(SQueryNodeAddr));
+    if (NULL == pRsp->addrsList) return -1;
+  }
+  
   for (int32_t i = 0; i < num; ++i) {
-    if (tDecodeSQueryNodeAddr(&decoder, TARRAY_GET_ELEM(pRsp->addrsList, i)) < 0) return -1;
+    SQueryNodeAddr addr = {0};
+    if (tDecodeSQueryNodeAddr(&decoder, &addr) < 0) return -1;
+    taosArrayPush(pRsp->addrsList, &addr);
   }
   tEndDecode(&decoder);
 
diff --git a/source/dnode/mgmt/interface/src/dmInt.c b/source/dnode/mgmt/interface/src/dmInt.c
index 491eff5e17b99f95d1d06544dec9775e59ba7130..2d15a7a008c01f0035b26eb2396b4cc3e3efa506 100644
--- a/source/dnode/mgmt/interface/src/dmInt.c
+++ b/source/dnode/mgmt/interface/src/dmInt.c
@@ -173,9 +173,13 @@ static void dmGetServerStatus(SDnode *pDnode, SServerStatusRsp *pStatus) {
 
 void dmProcessNettestReq(SDnode *pDnode, SRpcMsg *pRpc) {
   dDebug("net test req is received");
-  SRpcMsg rsp = {.handle = pRpc->handle, .ahandle = pRpc->ahandle, .code = 0};
+  SRpcMsg rsp = {.handle = pRpc->handle, .refId = pRpc->refId, .ahandle = pRpc->ahandle, .code = 0};
   rsp.pCont = rpcMallocCont(pRpc->contLen);
-  rsp.contLen = pRpc->contLen;
+  if (rsp.pCont == NULL) {
+    rsp.code = TSDB_CODE_OUT_OF_MEMORY;
+  } else {
+    rsp.contLen = pRpc->contLen;
+  }
   rpcSendResponse(&rsp);
 }
 
diff --git a/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c b/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
index b434cf102e130737fa4493eb204613cb8fee602b..afe57e3d8ffd78f7d9684cbd7e52a264a1343668 100644
--- a/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
@@ -177,6 +177,7 @@ void mmInitMsgHandle(SMgmtWrapper *pWrapper) {
   dmSetMsgHandle(pWrapper, TDMT_MND_DROP_MNODE, mmProcessWriteMsg, DEFAULT_HANDLE);
   dmSetMsgHandle(pWrapper, TDMT_MND_CREATE_QNODE, mmProcessWriteMsg, DEFAULT_HANDLE);
   dmSetMsgHandle(pWrapper, TDMT_MND_DROP_QNODE, mmProcessWriteMsg, DEFAULT_HANDLE);
+  dmSetMsgHandle(pWrapper, TDMT_MND_QNODE_LIST, mmProcessReadMsg, DEFAULT_HANDLE);
   dmSetMsgHandle(pWrapper, TDMT_MND_CREATE_SNODE, mmProcessWriteMsg, DEFAULT_HANDLE);
   dmSetMsgHandle(pWrapper, TDMT_MND_DROP_SNODE, mmProcessWriteMsg, DEFAULT_HANDLE);
   dmSetMsgHandle(pWrapper, TDMT_MND_CREATE_BNODE, mmProcessWriteMsg, DEFAULT_HANDLE);
diff --git a/source/dnode/mnode/impl/src/mndQnode.c b/source/dnode/mnode/impl/src/mndQnode.c
index 1c03ca30f44ec969f57e834cce08d0c44e5d2920..cec5933ba32b2e2f3fbcfb8a5ab48a4f8109ad18 100644
--- a/source/dnode/mnode/impl/src/mndQnode.c
+++ b/source/dnode/mnode/impl/src/mndQnode.c
@@ -451,8 +451,9 @@ static int32_t mndProcessQnodeListReq(SNodeMsg *pReq) {
     goto _OVER;
   }
 
+  void *pIter = NULL;
   while (1) {
-    void *pIter = sdbFetch(pSdb, SDB_QNODE, NULL, (void **)&pObj);
+    pIter = sdbFetch(pSdb, SDB_QNODE, pIter, (void **)&pObj);
     if (pIter == NULL) break;
 
     SQueryNodeAddr nodeAddr = {0};
@@ -472,7 +473,7 @@ static int32_t mndProcessQnodeListReq(SNodeMsg *pReq) {
   }
 
   int32_t rspLen = tSerializeSQnodeListRsp(NULL, 0, &qlistRsp);
-  void   *pRsp = taosMemoryMalloc(rspLen);
+  void   *pRsp = rpcMallocCont(rspLen);
   if (pRsp == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     goto _OVER;
diff --git a/source/dnode/qnode/src/qnode.c b/source/dnode/qnode/src/qnode.c
index 7b299f1f3ce3fca46e2205f3a8c0226096ada826..907fddaec2529385856f09add338fa91159e7c69 100644
--- a/source/dnode/qnode/src/qnode.c
+++ b/source/dnode/qnode/src/qnode.c
@@ -17,6 +17,7 @@
 #include "qndInt.h"
 #include "query.h"
 #include "qworker.h"
+//#include "tudf.h"
 
 SQnode *qndOpen(const SQnodeOpt *pOption) {
   SQnode *pQnode = taosMemoryCalloc(1, sizeof(SQnode));
@@ -25,6 +26,8 @@ SQnode *qndOpen(const SQnodeOpt *pOption) {
     return NULL;
   }
 
+  //udfcOpen();
+
   if (qWorkerInit(NODE_TYPE_QNODE, pQnode->qndId, NULL, (void **)&pQnode->pQuery, &pOption->msgCb)) {
     taosMemoryFreeClear(pQnode);
     return NULL;
@@ -37,13 +40,15 @@ SQnode *qndOpen(const SQnodeOpt *pOption) {
 void qndClose(SQnode *pQnode) {
   qWorkerDestroy((void **)&pQnode->pQuery);
 
+  //udfcClose();
+
   taosMemoryFree(pQnode);
 }
 
 int32_t qndGetLoad(SQnode *pQnode, SQnodeLoad *pLoad) { return 0; }
 
 int32_t qndProcessQueryMsg(SQnode *pQnode, SRpcMsg *pMsg) {
-  qTrace("message in query queue is processing");
+  qTrace("message in qnode query queue is processing");
   SReadHandle handle = {0};
 
   switch (pMsg->msgType) {
diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index aa90a04478ab37d5f377903d36c7b99d43411f29..e3c504c93d9195eec1111965fc65c05119d3f853 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -135,7 +135,7 @@ int vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRpcMsg
 }
 
 int vnodeProcessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg) {
-  vTrace("message in query queue is processing");
+  vTrace("message in vnode query queue is processing");
   SReadHandle handle = {.reader = pVnode->pTsdb, .meta = pVnode->pMeta, .config = &pVnode->config};
 
   switch (pMsg->msgType) {
diff --git a/source/libs/catalog/src/catalog.c b/source/libs/catalog/src/catalog.c
index 410527c9e6ac48c52e5926abfde59e321557eb7e..272c370ca3943c65d6163e9d1a169d19c9b80a82 100644
--- a/source/libs/catalog/src/catalog.c
+++ b/source/libs/catalog/src/catalog.c
@@ -494,7 +494,7 @@ _return:
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t ctgGetQnodeListFromMnode(SCatalog* pCtg, void *pRpc, const SEpSet* pMgmtEps, SArray **out) {
+int32_t ctgGetQnodeListFromMnode(SCatalog* pCtg, void *pRpc, const SEpSet* pMgmtEps, SArray *out) {
   char *msg = NULL;
   int32_t msgLen = 0;
 
@@ -526,7 +526,7 @@ int32_t ctgGetQnodeListFromMnode(SCatalog* pCtg, void *pRpc, const SEpSet* pMgmt
     CTG_ERR_RET(code);
   }
 
-  ctgDebug("Got qnode list from mnode, listNum:%d", (int32_t)taosArrayGetSize(*out));
+  ctgDebug("Got qnode list from mnode, listNum:%d", (int32_t)taosArrayGetSize(out));
 
   return TSDB_CODE_SUCCESS;
 }
@@ -2778,7 +2778,8 @@ int32_t catalogGetAllMeta(SCatalog* pCtg, void *pTrans, const SEpSet* pMgmtEps,
   }
 
   if (pReq->qNodeRequired) {
-    CTG_ERR_JRET(ctgGetQnodeListFromMnode(pCtg, pTrans, pMgmtEps, &pRsp->pEpSetList));
+    pRsp->pQnodeList = taosArrayInit(10, sizeof(SQueryNodeAddr));
+    CTG_ERR_JRET(ctgGetQnodeListFromMnode(pCtg, pTrans, pMgmtEps, pRsp->pQnodeList));
   }
 
   CTG_API_LEAVE(TSDB_CODE_SUCCESS);
@@ -2807,7 +2808,7 @@ int32_t catalogGetQnodeList(SCatalog* pCtg, void *pRpc, const SEpSet* pMgmtEps,
     CTG_API_LEAVE(TSDB_CODE_CTG_INVALID_INPUT);
   }
 
-  CTG_ERR_JRET(ctgGetQnodeListFromMnode(pCtg, pRpc, pMgmtEps, &pQnodeList));
+  CTG_ERR_JRET(ctgGetQnodeListFromMnode(pCtg, pRpc, pMgmtEps, pQnodeList));
 
 _return:
 
diff --git a/source/libs/qcom/src/querymsg.c b/source/libs/qcom/src/querymsg.c
index de805d2c772f43be55e328684d58e81086100b83..fd7c831399901a5c8d9922e011213e4267d748cd 100644
--- a/source/libs/qcom/src/querymsg.c
+++ b/source/libs/qcom/src/querymsg.c
@@ -342,28 +342,20 @@ PROCESS_META_OVER:
 
 int32_t queryProcessQnodeListRsp(void *output, char *msg, int32_t msgSize) {
   SQnodeListRsp out = {0};
-  int32_t       code = -1;
+  int32_t       code = 0;
 
   if (NULL == output || NULL == msg || msgSize <= 0) {
     code = TSDB_CODE_TSC_INVALID_INPUT;
-    goto PROCESS_QLIST_OVER;
+    return code;
   }
 
+  out.addrsList = (SArray *)output;
   if (tDeserializeSQnodeListRsp(msg, msgSize, &out) != 0) {
     qError("invalid qnode list rsp msg, msgSize:%d", msgSize);
     code = TSDB_CODE_INVALID_MSG;
-    goto PROCESS_QLIST_OVER;
+    return code;
   }
 
-PROCESS_QLIST_OVER:
-
-  if (code != 0) {
-    tFreeSQnodeListRsp(&out);
-    out.addrsList = NULL;
-  }
-
-  *(SArray **)output = out.addrsList;
-
   return code;
 }
 
diff --git a/source/libs/scalar/inc/sclInt.h b/source/libs/scalar/inc/sclInt.h
index 3d59ffd93d7ac7e59ac1aa9e81023f3d2cb30636..9142cc41c41f8e8e491549fbbf5c990c07264fd4 100644
--- a/source/libs/scalar/inc/sclInt.h
+++ b/source/libs/scalar/inc/sclInt.h
@@ -32,6 +32,9 @@ typedef struct SScalarCtx {
 #define SCL_DATA_TYPE_DUMMY_HASH 9000
 #define SCL_DEFAULT_OP_NUM 10
 
+#define SCL_IS_CONST_NODE(_node) ((NULL == (_node)) || (QUERY_NODE_VALUE == (_node)->type) || (QUERY_NODE_NODE_LIST == (_node)->type))
+#define SCL_IS_CONST_CALC(_ctx) (NULL == (_ctx)->pBlockList)
+
 #define sclFatal(...)  qFatal(__VA_ARGS__)
 #define sclError(...)  qError(__VA_ARGS__)
 #define sclWarn(...)   qWarn(__VA_ARGS__)
diff --git a/source/libs/scalar/src/scalar.c b/source/libs/scalar/src/scalar.c
index 145afbe984a8f19e30871cd91bd62f9c5520cf32..820a4894b5ed756bcacfe030211b24b35e86b11e 100644
--- a/source/libs/scalar/src/scalar.c
+++ b/source/libs/scalar/src/scalar.c
@@ -244,23 +244,53 @@ int32_t sclInitParam(SNode* node, SScalarParam *param, SScalarCtx *ctx, int32_t
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t sclInitParamList(SScalarParam **pParams, SNodeList* pParamList, SScalarCtx *ctx, int32_t *rowNum) {
+int32_t sclInitParamList(SScalarParam **pParams, SNodeList* pParamList, SScalarCtx *ctx, int32_t *paramNum, int32_t *rowNum) {  
   int32_t code = 0;
-  SScalarParam *paramList = taosMemoryCalloc(pParamList->length, sizeof(SScalarParam));
+  if (NULL == pParamList) {
+    if (ctx->pBlockList) {
+      SSDataBlock *pBlock = taosArrayGet(ctx->pBlockList, 0);
+      *rowNum = pBlock->info.rows;
+    } else {
+      *rowNum = 1;
+    }
+
+    *paramNum = 1;
+  } else {
+    *paramNum = pParamList->length;
+  }
+
+  SScalarParam *paramList = taosMemoryCalloc(*paramNum, sizeof(SScalarParam));
   if (NULL == paramList) {
-    sclError("calloc %d failed", (int32_t)(pParamList->length * sizeof(SScalarParam)));
+    sclError("calloc %d failed", (int32_t)((*paramNum) * sizeof(SScalarParam)));
     SCL_ERR_RET(TSDB_CODE_QRY_OUT_OF_MEMORY);
   }
 
-  SListCell *cell = pParamList->pHead;
-  for (int32_t i = 0; i < pParamList->length; ++i) {
-    if (NULL == cell || NULL == cell->pNode) {
-      sclError("invalid cell, cell:%p, pNode:%p", cell, cell->pNode);
-      SCL_ERR_JRET(TSDB_CODE_QRY_INVALID_INPUT);
+  if (pParamList) {
+    SNode *tnode = NULL;
+    int32_t i = 0;
+    if (SCL_IS_CONST_CALC(ctx)) {
+      WHERE_EACH (tnode, pParamList) { 
+        if (!SCL_IS_CONST_NODE(tnode)) {
+          WHERE_NEXT;
+        } else {
+          SCL_ERR_JRET(sclInitParam(tnode, &paramList[i], ctx, rowNum));
+          ERASE_NODE(pParamList);
+        }
+        
+        ++i;
+      }
+    } else {
+      FOREACH(tnode, pParamList) { 
+        SCL_ERR_JRET(sclInitParam(tnode, &paramList[i], ctx, rowNum));
+        ++i;
+      }
     }
+  } else {
+    paramList[0].numOfRows = *rowNum;
+  }
 
-    SCL_ERR_JRET(sclInitParam(cell->pNode, &paramList[i], ctx, rowNum));
-    cell = cell->pNext;
+  if (0 == *rowNum) {
+    taosMemoryFreeClear(paramList);    
   }
 
   *pParams = paramList;
@@ -299,37 +329,45 @@ _return:
 }
 
 int32_t sclExecFunction(SFunctionNode *node, SScalarCtx *ctx, SScalarParam *output) {
-  if (NULL == node->pParameterList || node->pParameterList->length <= 0) {
-    sclError("invalid function parameter list, list:%p, paramNum:%d", node->pParameterList, node->pParameterList ? node->pParameterList->length : 0);
-    SCL_ERR_RET(TSDB_CODE_QRY_INVALID_INPUT);
-  }
-
-  SScalarFuncExecFuncs ffpSet = {0};
-  int32_t code = fmGetScalarFuncExecFuncs(node->funcId, &ffpSet);
-  if (code) {
-    sclError("fmGetFuncExecFuncs failed, funcId:%d, code:%s", node->funcId, tstrerror(code));
-    SCL_ERR_RET(code);
-  }
-
   SScalarParam *params = NULL;
   int32_t rowNum = 0;
-  SCL_ERR_RET(sclInitParamList(&params, node->pParameterList, ctx, &rowNum));
-
-  output->columnData = createColumnInfoData(&node->node.resType, rowNum);
-  if (output->columnData == NULL) {
-    sclError("calloc %d failed", (int32_t)(rowNum * output->columnData->info.bytes));
-    SCL_ERR_JRET(TSDB_CODE_QRY_OUT_OF_MEMORY);
-  }
+  int32_t paramNum = 0;
+  int32_t code = 0;
+  SCL_ERR_RET(sclInitParamList(&params, node->pParameterList, ctx, &paramNum, &rowNum));
 
-  code = (*ffpSet.process)(params, node->pParameterList->length, output);
-  if (code) {
-    sclError("scalar function exec failed, funcId:%d, code:%s", node->funcId, tstrerror(code));
+  if (fmIsUserDefinedFunc(node->funcId)) {
+#if 0  
+    UdfcFuncHandle udfHandle = NULL;
+    
+    SCL_ERR_JRET(setupUdf(node->functionName, &udfHandle));
+    code = callUdfScalarFunc(udfHandle, params, paramNum, output);
+    teardownUdf(udfHandle);
     SCL_ERR_JRET(code);
+#endif    
+  } else {
+    SScalarFuncExecFuncs ffpSet = {0};
+    code = fmGetScalarFuncExecFuncs(node->funcId, &ffpSet);
+    if (code) {
+      sclError("fmGetFuncExecFuncs failed, funcId:%d, code:%s", node->funcId, tstrerror(code));
+      SCL_ERR_JRET(code);
+    }
+  
+    output->columnData = createColumnInfoData(&node->node.resType, rowNum);
+    if (output->columnData == NULL) {
+      sclError("calloc %d failed", (int32_t)(rowNum * output->columnData->info.bytes));
+      SCL_ERR_JRET(TSDB_CODE_QRY_OUT_OF_MEMORY);
+    }
+
+    code = (*ffpSet.process)(params, paramNum, output);
+    if (code) {
+      sclError("scalar function exec failed, funcId:%d, code:%s", node->funcId, tstrerror(code));
+      SCL_ERR_JRET(code);
+    }
   }
 
 _return:
 
-  for (int32_t i = 0; i < node->pParameterList->length; ++i) {
+  for (int32_t i = 0; i < paramNum; ++i) {
 //    sclFreeParamNoData(params + i);
   }
 
@@ -355,8 +393,13 @@ int32_t sclExecLogic(SLogicConditionNode *node, SScalarCtx *ctx, SScalarParam *o
 
   SScalarParam *params = NULL;
   int32_t rowNum = 0;
+  int32_t paramNum = 0;
   int32_t code = 0;
-  SCL_ERR_RET(sclInitParamList(&params, node->pParameterList, ctx, &rowNum));
+  SCL_ERR_RET(sclInitParamList(&params, node->pParameterList, ctx, &paramNum, &rowNum));
+  if (NULL == params) {
+    output->numOfRows = 0;
+    return TSDB_CODE_SUCCESS;
+  }
 
   int32_t type = node->node.resType.type;
   output->numOfRows = rowNum;
@@ -369,25 +412,41 @@ int32_t sclExecLogic(SLogicConditionNode *node, SScalarCtx *ctx, SScalarParam *o
   }
 
   bool value = false;
+  bool complete = true;
   for (int32_t i = 0; i < rowNum; ++i) {
-    for (int32_t m = 0; m < node->pParameterList->length; ++m) {
+    complete = true;
+    for (int32_t m = 0; m < paramNum; ++m) {
+      if (NULL == params[m].columnData) {
+        complete = false;
+        continue;
+      }
       char* p = colDataGetData(params[m].columnData, i);
       GET_TYPED_DATA(value, bool, params[m].columnData->info.type, p);
 
       if (LOGIC_COND_TYPE_AND == node->condType && (false == value)) {
+        complete = true;
         break;
       } else if (LOGIC_COND_TYPE_OR == node->condType && value) {
+        complete = true;
         break;
       } else if (LOGIC_COND_TYPE_NOT == node->condType) {
         value = !value;
       }
     }
 
-    colDataAppend(output->columnData, i, (char*) &value, false);
+    if (complete) {
+      colDataAppend(output->columnData, i, (char*) &value, false);
+    }
+  }
+
+  if (SCL_IS_CONST_CALC(ctx) && (false == complete)) {
+    sclFreeParam(output);
+    output->numOfRows = 0;
   }
 
 _return:
-  for (int32_t i = 0; i < node->pParameterList->length; ++i) {
+
+  for (int32_t i = 0; i < paramNum; ++i) {
 //    sclFreeParamNoData(params + i);
   }
 
@@ -426,6 +485,17 @@ _return:
 
 EDealRes sclRewriteFunction(SNode** pNode, SScalarCtx *ctx) {
   SFunctionNode *node = (SFunctionNode *)*pNode;
+  SNode* tnode = NULL;
+  if (fmIsUserDefinedFunc(node->funcId)) {
+    return DEAL_RES_CONTINUE;
+  }
+  
+  FOREACH(tnode, node->pParameterList) {
+    if (!SCL_IS_CONST_NODE(tnode)) {
+      return DEAL_RES_CONTINUE;
+    }
+  }
+
   SScalarParam output = {0};
 
   ctx->code = sclExecFunction(node, ctx, &output);
@@ -470,6 +540,10 @@ EDealRes sclRewriteLogic(SNode** pNode, SScalarCtx *ctx) {
     return DEAL_RES_ERROR;
   }
 
+  if (0 == output.numOfRows) {
+    return DEAL_RES_CONTINUE;
+  }
+
   SValueNode *res = (SValueNode *)nodesMakeNode(QUERY_NODE_VALUE);
   if (NULL == res) {
     sclError("make value node failed");
@@ -498,6 +572,14 @@ EDealRes sclRewriteLogic(SNode** pNode, SScalarCtx *ctx) {
 EDealRes sclRewriteOperator(SNode** pNode, SScalarCtx *ctx) {
   SOperatorNode *node = (SOperatorNode *)*pNode;
 
+  if (!SCL_IS_CONST_NODE(node->pLeft)) {
+    return DEAL_RES_CONTINUE;
+  }
+
+  if (!SCL_IS_CONST_NODE(node->pRight)) {
+    return DEAL_RES_CONTINUE;
+  }
+
   SScalarParam output = {.columnData = taosMemoryCalloc(1, sizeof(SColumnInfoData))};
   ctx->code = sclExecOperator(node, ctx, &output);
   if (ctx->code) {
@@ -530,7 +612,7 @@ EDealRes sclRewriteOperator(SNode** pNode, SScalarCtx *ctx) {
 }
 
 EDealRes sclConstantsRewriter(SNode** pNode, void* pContext) {
-  if (QUERY_NODE_VALUE == nodeType(*pNode) || QUERY_NODE_NODE_LIST == nodeType(*pNode)) {
+  if (QUERY_NODE_VALUE == nodeType(*pNode) || QUERY_NODE_COLUMN == nodeType(*pNode) || QUERY_NODE_NODE_LIST == nodeType(*pNode)) {
     return DEAL_RES_CONTINUE;
   }
 
diff --git a/source/libs/scalar/test/scalar/scalarTests.cpp b/source/libs/scalar/test/scalar/scalarTests.cpp
index 04ab26d8a499dee44f8e7537ddca2279753725a9..ed52e48f6d8186666163d7ff2ea714640dc14143 100644
--- a/source/libs/scalar/test/scalar/scalarTests.cpp
+++ b/source/libs/scalar/test/scalar/scalarTests.cpp
@@ -137,6 +137,11 @@ void scltMakeColumnNode(SNode **pNode, SSDataBlock **block, int32_t dataType, in
   rnode->node.resType.bytes = dataBytes;
   rnode->dataBlockId = 0;
 
+  if (NULL == block) {
+    *pNode = (SNode *)rnode;
+    return;
+  }
+
   if (NULL == *block) {
     SSDataBlock *res = (SSDataBlock *)taosMemoryCalloc(1, sizeof(SSDataBlock));
     res->info.numOfCols = 3;
@@ -889,6 +894,8 @@ TEST(constantTest, int_greater_int_is_true2) {
 }
 
 TEST(constantTest, greater_and_lower) {
+  scltInitLogFile();
+
   SNode *pval1 = NULL, *pval2 = NULL, *opNode1 = NULL, *opNode2 = NULL, *logicNode = NULL, *res = NULL;
   bool eRes[5] = {false, false, true, true, true};
   int64_t v1 = 333, v2 = 222, v3 = -10, v4 = 20;
@@ -913,6 +920,115 @@ TEST(constantTest, greater_and_lower) {
   nodesDestroyNode(res);
 }
 
+TEST(constantTest, column_and_value1) {
+  scltInitLogFile();
+
+  SNode *pval1 = NULL, *pval2 = NULL, *opNode1 = NULL, *opNode2 = NULL, *logicNode = NULL, *res = NULL;
+  bool eRes[5] = {false, false, true, true, true};
+  int64_t v1 = 333, v2 = 222, v3 = -10, v4 = 20;
+  SNode *list[2] = {0};
+  scltMakeValueNode(&pval1, TSDB_DATA_TYPE_BIGINT, &v1);
+  scltMakeValueNode(&pval2, TSDB_DATA_TYPE_BIGINT, &v2);
+  scltMakeOpNode(&opNode1, OP_TYPE_GREATER_THAN, TSDB_DATA_TYPE_BOOL, pval1, pval2);
+  scltMakeValueNode(&pval1, TSDB_DATA_TYPE_BIGINT, &v3);
+  scltMakeColumnNode(&pval2, NULL, TSDB_DATA_TYPE_BIGINT, sizeof(int64_t), 0, NULL);
+  scltMakeOpNode(&opNode2, OP_TYPE_LOWER_THAN, TSDB_DATA_TYPE_BOOL, pval1, pval2);
+  list[0] = opNode1;
+  list[1] = opNode2;
+  scltMakeLogicNode(&logicNode, LOGIC_COND_TYPE_AND, list, 2);
+  
+  int32_t code = scalarCalculateConstants(logicNode, &res);
+  ASSERT_EQ(code, 0);
+  ASSERT_TRUE(res);
+  ASSERT_EQ(nodeType(res), QUERY_NODE_LOGIC_CONDITION);
+  SLogicConditionNode *v = (SLogicConditionNode *)res;
+  ASSERT_EQ(v->condType, LOGIC_COND_TYPE_AND);
+  ASSERT_EQ(v->pParameterList->length, 1);
+  nodesDestroyNode(res);
+}
+
+TEST(constantTest, column_and_value2) {
+  scltInitLogFile();
+
+  SNode *pval1 = NULL, *pval2 = NULL, *opNode1 = NULL, *opNode2 = NULL, *logicNode = NULL, *res = NULL;
+  bool eRes[5] = {false, false, true, true, true};
+  int64_t v1 = 333, v2 = 222, v3 = -10, v4 = 20;
+  SNode *list[2] = {0};
+  scltMakeValueNode(&pval1, TSDB_DATA_TYPE_BIGINT, &v1);
+  scltMakeValueNode(&pval2, TSDB_DATA_TYPE_BIGINT, &v2);
+  scltMakeOpNode(&opNode1, OP_TYPE_LOWER_THAN, TSDB_DATA_TYPE_BOOL, pval1, pval2);
+  scltMakeValueNode(&pval1, TSDB_DATA_TYPE_BIGINT, &v3);
+  scltMakeColumnNode(&pval2, NULL, TSDB_DATA_TYPE_BIGINT, sizeof(int64_t), 0, NULL);
+  scltMakeOpNode(&opNode2, OP_TYPE_LOWER_THAN, TSDB_DATA_TYPE_BOOL, pval1, pval2);
+  list[0] = opNode1;
+  list[1] = opNode2;
+  scltMakeLogicNode(&logicNode, LOGIC_COND_TYPE_AND, list, 2);
+  
+  int32_t code = scalarCalculateConstants(logicNode, &res);
+  ASSERT_EQ(code, 0);
+  ASSERT_TRUE(res);
+  ASSERT_EQ(nodeType(res), QUERY_NODE_VALUE);
+  SValueNode *v = (SValueNode *)res;
+  ASSERT_EQ(v->node.resType.type, TSDB_DATA_TYPE_BOOL);
+  ASSERT_EQ(v->datum.b, false);
+  nodesDestroyNode(res);
+}
+
+TEST(constantTest, column_and_value3) {
+  scltInitLogFile();
+
+  SNode *pval1 = NULL, *pval2 = NULL, *opNode1 = NULL, *opNode2 = NULL, *logicNode = NULL, *res = NULL;
+  bool eRes[5] = {false, false, true, true, true};
+  int64_t v1 = 333, v2 = 222, v3 = -10, v4 = 20;
+  SNode *list[2] = {0};
+  scltMakeValueNode(&pval1, TSDB_DATA_TYPE_BIGINT, &v1);
+  scltMakeValueNode(&pval2, TSDB_DATA_TYPE_BIGINT, &v2);
+  scltMakeOpNode(&opNode1, OP_TYPE_GREATER_THAN, TSDB_DATA_TYPE_BOOL, pval1, pval2);
+  scltMakeValueNode(&pval1, TSDB_DATA_TYPE_BIGINT, &v3);
+  scltMakeColumnNode(&pval2, NULL, TSDB_DATA_TYPE_BIGINT, sizeof(int64_t), 0, NULL);
+  scltMakeOpNode(&opNode2, OP_TYPE_LOWER_THAN, TSDB_DATA_TYPE_BOOL, pval1, pval2);
+  list[0] = opNode1;
+  list[1] = opNode2;
+  scltMakeLogicNode(&logicNode, LOGIC_COND_TYPE_OR, list, 2);
+  
+  int32_t code = scalarCalculateConstants(logicNode, &res);
+  ASSERT_EQ(code, 0);
+  ASSERT_TRUE(res);
+  ASSERT_EQ(nodeType(res), QUERY_NODE_VALUE);
+  SValueNode *v = (SValueNode *)res;
+  ASSERT_EQ(v->node.resType.type, TSDB_DATA_TYPE_BOOL);
+  ASSERT_EQ(v->datum.b, true);
+  nodesDestroyNode(res);
+}
+
+TEST(constantTest, column_and_value4) {
+  scltInitLogFile();
+
+  SNode *pval1 = NULL, *pval2 = NULL, *opNode1 = NULL, *opNode2 = NULL, *logicNode = NULL, *res = NULL;
+  bool eRes[5] = {false, false, true, true, true};
+  int64_t v1 = 333, v2 = 222, v3 = -10, v4 = 20;
+  SNode *list[2] = {0};
+  scltMakeValueNode(&pval1, TSDB_DATA_TYPE_BIGINT, &v1);
+  scltMakeValueNode(&pval2, TSDB_DATA_TYPE_BIGINT, &v2);
+  scltMakeOpNode(&opNode1, OP_TYPE_LOWER_THAN, TSDB_DATA_TYPE_BOOL, pval1, pval2);
+  scltMakeValueNode(&pval1, TSDB_DATA_TYPE_BIGINT, &v3);
+  scltMakeColumnNode(&pval2, NULL, TSDB_DATA_TYPE_BIGINT, sizeof(int64_t), 0, NULL);
+  scltMakeOpNode(&opNode2, OP_TYPE_LOWER_THAN, TSDB_DATA_TYPE_BOOL, pval1, pval2);
+  list[0] = opNode1;
+  list[1] = opNode2;
+  scltMakeLogicNode(&logicNode, LOGIC_COND_TYPE_OR, list, 2);
+  
+  int32_t code = scalarCalculateConstants(logicNode, &res);
+  ASSERT_EQ(code, 0);
+  ASSERT_TRUE(res);
+  ASSERT_EQ(nodeType(res), QUERY_NODE_LOGIC_CONDITION);
+  SLogicConditionNode *v = (SLogicConditionNode *)res;
+  ASSERT_EQ(v->condType, LOGIC_COND_TYPE_OR);
+  ASSERT_EQ(v->pParameterList->length, 1);
+  nodesDestroyNode(res);
+}
+
+
 void makeJsonArrow(SSDataBlock **src, SNode **opNode, void *json, char *key){
   char keyVar[32] = {0};
   memcpy(varDataVal(keyVar), key, strlen(key));
diff --git a/tools/shell/src/shellNettest.c b/tools/shell/src/shellNettest.c
index 307049dd385f4ac8fcfcca8d9caedd5d05c8e8f5..c8ec31c48bb29c56215c1bba4090eb8f4cddc7b4 100644
--- a/tools/shell/src/shellNettest.c
+++ b/tools/shell/src/shellNettest.c
@@ -67,7 +67,7 @@ static void shellWorkAsClient() {
 
     printf("request is sent, size:%d\n", rpcMsg.contLen);
     rpcSendRecv(clientRpc, &epSet, &rpcMsg, &rpcRsp);
-    if (rpcRsp.code == 0 &&rpcRsp.contLen == rpcMsg.contLen) {
+    if (rpcRsp.code == 0 && rpcRsp.contLen == rpcMsg.contLen) {
       printf("response is received, size:%d\n", rpcMsg.contLen);
       if (rpcRsp.code == 0) totalSucc++;
     } else {
@@ -97,8 +97,12 @@ static void shellProcessMsg(void *p, SRpcMsg *pRpc, SEpSet *pEpSet) {
   printf("request is received, size:%d\n", pRpc->contLen);
   fflush(stdout);
   SRpcMsg rsp = {.handle = pRpc->handle, .refId = pRpc->refId, .ahandle = pRpc->ahandle, .code = 0};
-  rsp.pCont = rpcMallocCont(shell.args.pktLen);
-  rsp.contLen = shell.args.pktLen;
+  rsp.pCont = rpcMallocCont(pRpc->contLen);
+  if (rsp.pCont == NULL) {
+    rsp.code = TSDB_CODE_OUT_OF_MEMORY;
+  } else {
+    rsp.contLen = pRpc->contLen;
+  }
   rpcSendResponse(&rsp);
 }