diff --git a/src/mnode/src/mnodeProfile.c b/src/mnode/src/mnodeProfile.c
index 7552ea5c25c136106ff998201500d299949d5932..31ca47929c74e8df1a659bd33e07a76afe1f6dbd 100644
--- a/src/mnode/src/mnodeProfile.c
+++ b/src/mnode/src/mnodeProfile.c
@@ -235,14 +235,12 @@ static int32_t mnodeRetrieveConns(SShowObj *pShow, char *data, int32_t rows, voi
     cols++;
 
     pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-    size_t size = sizeof(pConnObj->user);
-    STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConnObj->user, size);
+    STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConnObj->user, pShow->bytes[cols]);
     cols++;
 
     pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
     snprintf(ipStr, sizeof(ipStr), "%s:%u", taosIpStr(pConnObj->ip), pConnObj->port);
-    size = sizeof(ipStr);
-    STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, size);
+    STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, pShow->bytes[cols]);
     cols++;
 
     pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
@@ -356,18 +354,16 @@ static int32_t mnodeRetrieveQueries(SShowObj *pShow, char *data, int32_t rows, v
 
       snprintf(ipStr, QUERY_ID_SIZE + 1, "%u:%u", pConnObj->connId, htonl(pDesc->queryId));
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, QUERY_ID_SIZE);
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, pShow->bytes[cols]);
       cols++;
 
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      size_t size = sizeof(pConnObj->user);
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConnObj->user, size);
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConnObj->user, pShow->bytes[cols]);
       cols++;
 
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
       snprintf(ipStr, sizeof(ipStr), "%s:%u", taosIpStr(pConnObj->ip), pConnObj->port);
-      size = sizeof(ipStr);
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, size);
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, pShow->bytes[cols]);
       cols++;
 
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
@@ -379,7 +375,7 @@ static int32_t mnodeRetrieveQueries(SShowObj *pShow, char *data, int32_t rows, v
       cols++;
 
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pDesc->sql, TSDB_SHOW_SQL_LEN);
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pDesc->sql, pShow->bytes[cols]);
       cols++;
 
       numOfRows++;
@@ -479,18 +475,16 @@ static int32_t mnodeRetrieveStreams(SShowObj *pShow, char *data, int32_t rows, v
 
       snprintf(ipStr, QUERY_ID_SIZE + 1, "%u:%u", pConnObj->connId, htonl(pDesc->streamId));
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, QUERY_ID_SIZE);
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, pShow->bytes[cols]);
       cols++;
 
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      size_t size = sizeof(pConnObj->user);
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConnObj->user, size);
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConnObj->user, pShow->bytes[cols]);
       cols++;
 
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
       snprintf(ipStr, sizeof(ipStr), "%s:%u", taosIpStr(pConnObj->ip), pConnObj->port);
-      size = sizeof(ipStr);
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, size);
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, pShow->bytes[cols]);
       cols++;
 
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
@@ -506,7 +500,7 @@ static int32_t mnodeRetrieveStreams(SShowObj *pShow, char *data, int32_t rows, v
       cols++;
 
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pDesc->sql, TSDB_SHOW_SQL_LEN);
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pDesc->sql, pShow->bytes[cols]);
       cols++;
 
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;