diff --git a/source/libs/index/src/indexFilter.c b/source/libs/index/src/indexFilter.c
index 70de7ce66e7b16fbaed334d8a693d4ce6d809696..e1c8ac0204f77f6e4756cd05fba36141b911290f 100644
--- a/source/libs/index/src/indexFilter.c
+++ b/source/libs/index/src/indexFilter.c
@@ -579,14 +579,13 @@ static int32_t sifExecLogic(SLogicConditionNode *node, SIFCtx *ctx, SIFParam *ou
 
   if (ctx->noExec == false) {
     for (int32_t m = 0; m < node->pParameterList->length; m++) {
-      // add impl later
       if (node->condType == LOGIC_COND_TYPE_AND) {
         taosArrayAddAll(output->result, params[m].result);
-        taosArrayDestroy(params[m].result);
-        params[m].result = NULL;
+        // taosArrayDestroy(params[m].result);
+        //  params[m].result = NULL;
       } else if (node->condType == LOGIC_COND_TYPE_OR) {
         taosArrayAddAll(output->result, params[m].result);
-        params[m].result = NULL;
+        // params[m].result = NULL;
       } else if (node->condType == LOGIC_COND_TYPE_NOT) {
         // taosArrayAddAll(output->result, params[m].result);
       }
diff --git a/source/libs/transport/src/transComm.c b/source/libs/transport/src/transComm.c
index c99effb26f4628986e9c3be266219ff371e8ff93..8cf525a506fe856876f2e8577e6f97dedbdb8d26 100644
--- a/source/libs/transport/src/transComm.c
+++ b/source/libs/transport/src/transComm.c
@@ -120,8 +120,9 @@ int transInitBuffer(SConnBuffer* buf) {
   buf->total = 0;
   return 0;
 }
-int transDestroyBuffer(SConnBuffer* buf) {
-  taosMemoryFree(buf->buf);
+int transDestroyBuffer(SConnBuffer* p) {
+  taosMemoryFree(p->buf);
+  p->buf = NULL;
   return 0;
 }
 
diff --git a/source/libs/transport/src/transSvr.c b/source/libs/transport/src/transSvr.c
index 11b54c575eaa2081432f9b416443d05214f0a86e..4b579a1f9527bde98f9ac4d21723ed9d17e965d6 100644
--- a/source/libs/transport/src/transSvr.c
+++ b/source/libs/transport/src/transSvr.c
@@ -240,8 +240,6 @@ static void uvHandleReq(SSvrConn* pConn) {
   transMsg.msgType = pHead->msgType;
   transMsg.code = pHead->code;
 
-  // transClearBuffer(&pConn->readBuf);
-
   pConn->inType = pHead->msgType;
   if (pConn->status == ConnNormal) {
     if (pHead->persist == 1) {