diff --git a/source/dnode/vnode/src/meta/metaTable.c b/source/dnode/vnode/src/meta/metaTable.c
index f62c2f23efdcad5f9e11794ad2dcc292dc18c953..59952a360e50ba5c4492ed70cc38989ec92056d5 100644
--- a/source/dnode/vnode/src/meta/metaTable.c
+++ b/source/dnode/vnode/src/meta/metaTable.c
@@ -781,13 +781,13 @@ static int metaAlterTableColumn(SMeta *pMeta, int64_t version, SVAlterTbReq *pAl
     terrno = TSDB_CODE_VND_INVALID_TABLE_ACTION;
     goto _err;
   }
+  // search the column to add/drop/update
+  pSchema = &entry.ntbEntry.schemaRow;
 
   // save old entry
   SMetaEntry oldEntry = {.type = TSDB_NORMAL_TABLE, .uid = entry.uid};
   oldEntry.ntbEntry.schemaRow.nCols = pSchema->nCols;
 
-  // search the column to add/drop/update
-  pSchema = &entry.ntbEntry.schemaRow;
   int32_t iCol = 0;
   for (;;) {
     pColumn = NULL;
diff --git a/source/libs/transport/src/transSvr.c b/source/libs/transport/src/transSvr.c
index d5058a3b29444c2b54a8c69a09acc5477cceb820..6819068b64812f9057c6d230491096464185e593 100644
--- a/source/libs/transport/src/transSvr.c
+++ b/source/libs/transport/src/transSvr.c
@@ -975,7 +975,7 @@ void* transInitServer(uint32_t ip, uint32_t port, char* label, int numOfThreads,
   srv->port = port;
   uv_loop_init(srv->loop);
 
-  char pipeName[64];
+  char pipeName[PATH_MAX];
 #ifdef WINDOWS
   int ret = uv_pipe_init(srv->loop, &srv->pipeListen, 0);
   if (ret != 0) {
@@ -984,9 +984,9 @@ void* transInitServer(uint32_t ip, uint32_t port, char* label, int numOfThreads,
   }
 
   snprintf(pipeName, sizeof(pipeName), "\\\\?\\pipe\\trans.rpc.%d-%" PRIu64, taosSafeRand(), GetCurrentProcessId());
-  char pipeName[PATH_MAX] = {0};
-  snprintf(pipeName, sizeof(pipeName), "%s%spipe.trans.rpc.%08d-%" PRIu64, tsTempDir, TD_DIRSEP, taosSafeRand(),
-           taosGetSelfPthreadId());
+  // char pipeName[PATH_MAX] = {0};
+  // snprintf(pipeName, sizeof(pipeName), "%s%spipe.trans.rpc.%08d-%" PRIu64, tsTempDir, TD_DIRSEP, taosSafeRand(),
+  //          taosGetSelfPthreadId());
 
   ret = uv_pipe_bind(&srv->pipeListen, pipeName);
   if (ret != 0) {