diff --git a/src/inc/taosdef.h b/src/inc/taosdef.h
index 570e2e1acd0391f2f59f56b9b68b52e38310da14..d6a9447e3d192120a2712b46d1b2310c2732344f 100644
--- a/src/inc/taosdef.h
+++ b/src/inc/taosdef.h
@@ -176,7 +176,7 @@ void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size);
 #define TSDB_MAX_COLUMNS          256
 #define TSDB_MIN_COLUMNS          2       //PRIMARY COLUMN(timestamp) + other columns
 
-#define TSDB_DNODE_NAME_LEN       63
+#define TSDB_DNODE_NAME_LEN       64
 #define TSDB_TABLE_NAME_LEN       192
 #define TSDB_DB_NAME_LEN          32
 #define TSDB_COL_NAME_LEN         64
diff --git a/src/mnode/inc/mgmtSuperTable.h b/src/mnode/inc/mgmtSuperTable.h
index 922aafed7f9344ad908893cb6c7e6278a541bf35..6d0c565c3022f09460a4ec3eb84bc66c797030b7 100644
--- a/src/mnode/inc/mgmtSuperTable.h
+++ b/src/mnode/inc/mgmtSuperTable.h
@@ -45,7 +45,8 @@ void *  mgmtGetSuperTableVgroup(SSuperTableObj *pStable);
 int32_t mgmtFindSuperTableTagIndex(SSuperTableObj *pTable, const char *tagName);
 int32_t mgmtSetSchemaFromSuperTable(SSchema *pSchema, SSuperTableObj *pTable);
 
-void mgmtDropAllSuperTables(SDbObj *pDropDb);
+void    mgmtDropAllSuperTables(SDbObj *pDropDb);
+int32_t mgmtExtractTableName(const char* tableId, char* name);
 
 #ifdef __cplusplus
 }
diff --git a/src/mnode/src/mgmtSuperTable.c b/src/mnode/src/mgmtSuperTable.c
index f2b54ec000091914f49a5f1b94b97cffc1bed8e6..7c98556e995d4401ad74b8350ab27f0b396a269a 100644
--- a/src/mnode/src/mgmtSuperTable.c
+++ b/src/mnode/src/mgmtSuperTable.c
@@ -624,3 +624,8 @@ int32_t mgmtGetSuperTableMeta(SDbObj *pDb, SSuperTableObj *pTable, STableMetaMsg
   return TSDB_CODE_SUCCESS;
 }
 
+int32_t mgmtExtractTableName(const char* tableId, char* name) {
+  char* r = skipSegments(tableId, TS_PATH_DELIMITER[0], 2);
+  return copy(name, r, TS_PATH_DELIMITER[0]);
+}
+
diff --git a/src/mnode/src/mgmtTable.c b/src/mnode/src/mgmtTable.c
index 675de57924ccb46650085510079459a6c678f454..491e65979a5fc934970a6d899ac09e7dd06ceb07 100644
--- a/src/mnode/src/mgmtTable.c
+++ b/src/mnode/src/mgmtTable.c
@@ -310,7 +310,7 @@ int32_t mgmtRetrieveShowTables(SShowObj *pShow, char *data, int32_t rows, void *
     numOfRead++;
 
     // pattern compare for meter name
-    extractTableName(tableId, tableName);
+    mgmtExtractTableName(tableId, tableName);
 
     if (pShow->payloadLen > 0 &&
         patternMatch(pShow->payload, tableName, TSDB_TABLE_NAME_LEN, &info) != TSDB_PATTERN_MATCH) {
@@ -333,7 +333,7 @@ int32_t mgmtRetrieveShowTables(SShowObj *pShow, char *data, int32_t rows, void *
 
     pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
     if (superTableId != NULL) {
-      extractTableName(superTableId, pWrite);
+      mgmtExtractTableName(superTableId, pWrite);
     }
     cols++;