Merge pull request #1420 from taosdata/refact/slguan

[TD-15] fix error while create child table

src/client/src/tscServer.c

@@ -1746,7 +1746,7 @@ int tscBuildMetricMetaMsg(SSqlObj *pSql, SSqlInfo *pInfo) {
 
   msgLen = pMsg - pStart;
   pCmd->payloadLen = msgLen;
-  pCmd->msgType = TSDB_MSG_TYPE_CM_STABLE_META;
+  pCmd->msgType = TSDB_MSG_TYPE_CM_STABLE_VGROUP;
   assert(msgLen + minMsgSize() <= size);
   
   return TSDB_CODE_SUCCESS;

src/inc/mnode.h

@@ -98,67 +98,45 @@ typedef struct {
 } SVnodeGid;
 
 typedef struct {
-  char     tableId[TSDB_TABLE_ID_LEN];
-  int8_t   type;
-  int8_t   dirty;
-  uint64_t uid;
-  int32_t  sid;
-  int32_t  vgId;
-  int64_t  createdTime;
+  char   tableId[TSDB_TABLE_ID_LEN];
+  int8_t type;
+  int8_t dirty;
 } STableInfo;
 
 struct _vg_obj;
 
 typedef struct SSuperTableObj {
-  char     tableId[TSDB_TABLE_ID_LEN + 1];
-  int8_t   type;
-  int8_t   dirty;
-  uint64_t uid;
-  int32_t  sid;
-  int32_t  vgId;
-  int64_t  createdTime;
-  int32_t  sversion;
-  int32_t  numOfColumns;
-  int32_t  numOfTags;
-  int8_t   reserved[15];
-  int8_t   updateEnd[1];
-  int32_t  numOfTables;
-  int16_t  nextColId;
-  SSchema *schema;
+  STableInfo info;
+  uint64_t   uid;
+  int64_t    createdTime;
+  int32_t    sversion;
+  int32_t    numOfColumns;
+  int32_t    numOfTags;
+  int8_t     reserved[15];
+  int8_t     updateEnd[1];
+  int32_t    numOfTables;
+  int16_t    nextColId;
+  SSchema *  schema;
 } SSuperTableObj;
 
 typedef struct {
-  char     tableId[TSDB_TABLE_ID_LEN + 1];
-  int8_t   type;
-  int8_t   dirty;
-  uint64_t uid;
-  int32_t  sid;
-  int32_t  vgId;
-  int64_t  createdTime;
-  char     superTableId[TSDB_TABLE_ID_LEN + 1];
-  int8_t   reserved[1];
-  int8_t   updateEnd[1];
+  STableInfo info;
+  uint64_t   uid;
+  int64_t    createdTime;
+  int32_t    sversion;     //used by normal table
+  int32_t    numOfColumns; //used by normal table
+  int32_t    sid;
+  int32_t    vgId;
+  char       superTableId[TSDB_TABLE_ID_LEN + 1];
+  int32_t    sqlLen;
+  int8_t     reserved[1]; 
+  int8_t     updateEnd[1];
+  int16_t    nextColId;    //used by normal table
+  char*      sql;          //used by normal table
+  SSchema*   schema;       //used by normal table
   SSuperTableObj *superTable;
 } SChildTableObj;
 
-typedef struct {
-  char     tableId[TSDB_TABLE_ID_LEN];
-  int8_t   type;
-  int8_t   dirty;
-  uint64_t uid;
-  int32_t  sid;
-  int32_t  vgId;
-  int64_t  createdTime;
-  int32_t  sversion;
-  int32_t  numOfColumns;
-  int32_t  sqlLen;
-  int8_t   reserved[7];
-  int8_t   updateEnd[1];
-  char*    sql;  //null-terminated string
-  int16_t  nextColId;
-  SSchema* schema;
-} SNormalTableObj;
-
 struct _db_obj;
 
 typedef struct _vg_obj {
@@ -176,7 +154,7 @@ typedef struct _vg_obj {
   struct _db_obj *pDb;
   int32_t         numOfTables;
   void *          idPool;
-  STableInfo **   tableList;
+  SChildTableObj ** tableList;
 } SVgObj;
 
 typedef struct _db_obj {
@@ -260,9 +238,10 @@ typedef struct {
 
 typedef struct {
   uint8_t  msgType;
-  int8_t   expected;
+  int8_t   usePublicIp;
   int8_t   received;
   int8_t   successed;
+  int8_t   expected;
   int32_t  contLen;
   int32_t  code;
   void     *ahandle;

src/inc/taosmsg.h

@@ -94,8 +94,8 @@ extern "C" {
 #define TSDB_MSG_TYPE_CM_ALTER_TABLE_RSP 62
 #define TSDB_MSG_TYPE_CM_TABLE_META 63
 #define TSDB_MSG_TYPE_CM_TABLE_META_RSP 64
-#define TSDB_MSG_TYPE_CM_STABLE_META 65
-#define TSDB_MSG_TYPE_CM_STABLE_META_RSP 66
+#define TSDB_MSG_TYPE_CM_STABLE_VGROUP 65
+#define TSDB_MSG_TYPE_CM_STABLE_VGROUP_RSP 66
 #define TSDB_MSG_TYPE_CM_TABLES_META 67
 #define TSDB_MSG_TYPE_CM_TABLES_META_RSP 68
 #define TSDB_MSG_TYPE_CM_ALTER_STREAM 69
@@ -738,8 +738,8 @@ typedef struct {
 } SDMConfigTableMsg;
 
 typedef struct {
-  uint32_t dnode;
-  int32_t  vnode;
+  uint32_t dnodeId;
+  int32_t  vgId;
 } SDMConfigVnodeMsg;
 
 typedef struct {

src/mnode/inc/mgmtChildTable.h

@@ -23,23 +23,18 @@ extern "C" {
 #include <stdint.h>
 #include <stdbool.h>
 #include "taosdef.h"
-
 #include "mnode.h"
 
 int32_t mgmtInitChildTables();
 void    mgmtCleanUpChildTables();
 void *  mgmtGetChildTable(char *tableId);
 
-void *mgmtCreateChildTable(SCMCreateTableMsg *pCreate, SVgObj *pVgroup, int32_t sid);
-void *mgmtBuildCreateChildTableMsg(SCMCreateTableMsg *pCreate, SChildTableObj *pTable);
-
-int32_t mgmtDropChildTable(SQueuedMsg *newMsg, SChildTableObj *pTable);
-int32_t mgmtModifyChildTableTagValueByName(SChildTableObj *pTable, char *tagName, char *nContent);
-
-int32_t mgmtGetChildTableMeta(SDbObj *pDb, SChildTableObj *pTable, STableMetaMsg *pMeta, bool usePublicIp);
-
-void mgmtDropAllChildTables(SDbObj *pDropDb);
-void mgmtDropAllChildTablesInStable(SSuperTableObj *pStable);
+void    mgmtCreateChildTable(SQueuedMsg *pMsg);
+void    mgmtDropChildTable(SQueuedMsg *pMsg, SChildTableObj *pTable);
+void    mgmtGetChildTableMeta(SQueuedMsg *pMsg, SChildTableObj *pTable);
+void    mgmtAlterChildTable(SQueuedMsg *pMsg, SChildTableObj *pTable);
+void    mgmtDropAllChildTables(SDbObj *pDropDb);
+void    mgmtDropAllChildTablesInStable(SSuperTableObj *pStable);
 
 #ifdef __cplusplus
 }

src/mnode/inc/mgmtDb.h

@@ -22,22 +22,23 @@ extern "C" {
 
 #include "mnode.h"
 
-void mgmtAddVgroupIntoDb(SVgObj *pVgroup);
-void mgmtAddVgroupIntoDbTail(SVgObj *pVgroup);
-void mgmtRemoveVgroupFromDb(SVgObj *pVgroup);
-void mgmtMoveVgroupToTail(SVgObj *pVgroup);
-void mgmtMoveVgroupToHead(SVgObj *pVgroup);
-
+// api
 int32_t mgmtInitDbs();
 void    mgmtCleanUpDbs();
 SDbObj *mgmtGetDb(char *db);
 SDbObj *mgmtGetDbByTableId(char *db);
 bool    mgmtCheckIsMonitorDB(char *db, char *monitordb);
 
+// util func
 void mgmtAddSuperTableIntoDb(SDbObj *pDb);
 void mgmtRemoveSuperTableFromDb(SDbObj *pDb);
 void mgmtAddTableIntoDb(SDbObj *pDb);
 void mgmtRemoveTableFromDb(SDbObj *pDb);
+void mgmtAddVgroupIntoDb(SVgObj *pVgroup);
+void mgmtAddVgroupIntoDbTail(SVgObj *pVgroup);
+void mgmtRemoveVgroupFromDb(SVgObj *pVgroup);
+void mgmtMoveVgroupToTail(SVgObj *pVgroup);
+void mgmtMoveVgroupToHead(SVgObj *pVgroup);
 
 #ifdef __cplusplus
 }

src/mnode/inc/mgmtMnode.h

@@ -21,14 +21,14 @@ extern "C" {
 #endif
 
 int32_t mgmtInitMnodes();
-void mgmtCleanupMnodes();
+void    mgmtCleanupMnodes();
 
-bool mgmtInServerStatus();   
-bool mgmtIsMaster();
+bool    mgmtInServerStatus();   
+bool    mgmtIsMaster();
 
-bool mgmtCheckRedirect(void *handle);
-void mgmtGetMnodePrivateIpList(SRpcIpSet *ipSet);
-void mgmtGetMnodePublicIpList(SRpcIpSet *ipSet);
+bool    mgmtCheckRedirect(void *handle);
+void    mgmtGetMnodePrivateIpList(SRpcIpSet *ipSet);
+void    mgmtGetMnodePublicIpList(SRpcIpSet *ipSet);
 
 int32_t mgmtAddMnode(uint32_t privateIp, uint32_t publicIp);
 int32_t mgmtRemoveMnode(uint32_t privateIp);

src/mnode/inc/mgmtNormalTable.h

-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef TBASE_MNODE_NORMAL_TABLE_H
-#define TBASE_MNODE_NORMAL_TABLE_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdint.h>
-#include <stdbool.h>
-#include "mnode.h"
-
-int32_t mgmtInitNormalTables();
-void    mgmtCleanUpNormalTables();
-void *  mgmtGetNormalTable(char *tableId);
-
-void *  mgmtCreateNormalTable(SCMCreateTableMsg *pCreate, SVgObj *pVgroup, int32_t sid);
-void *  mgmtBuildCreateNormalTableMsg(SNormalTableObj *pTable);
-
-int32_t mgmtDropNormalTable(SQueuedMsg *newMsg, SNormalTableObj *pTable);
-int32_t mgmtAddNormalTableColumn(SNormalTableObj *pTable, SSchema schema[], int32_t ncols);
-int32_t mgmtDropNormalTableColumnByName(SNormalTableObj *pTable, char *colName);
-
-int32_t mgmtGetNormalTableMeta(SDbObj *pDb, SNormalTableObj *pTable, STableMetaMsg *pMeta, bool usePublicIp);
-
-void mgmtDropAllNormalTables(SDbObj *pDropDb);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

src/mnode/inc/mgmtProfile.h

@@ -24,11 +24,11 @@ extern "C" {
 int32_t mgmtInitProfile();
 void    mgmtCleanUpProfile();
 
-bool mgmtCheckQhandle(uint64_t qhandle);
-void mgmtSaveQhandle(void *qhandle);
-void mgmtFreeQhandle(void *qhandle);
+bool    mgmtCheckQhandle(uint64_t qhandle);
+void    mgmtSaveQhandle(void *qhandle);
+void    mgmtFreeQhandle(void *qhandle);
 
-void mgmtFreeQueuedMsg(SQueuedMsg *pMsg);
+void    mgmtFreeQueuedMsg(SQueuedMsg *pMsg);
 
 #ifdef __cplusplus
 }

src/mnode/inc/mgmtSdb.h

@@ -53,16 +53,16 @@ typedef struct {
   int32_t (*destroyFp)(SSdbOperDesc *pDesc);
 } SSdbTableDesc;
 
-void *sdbOpenTable(SSdbTableDesc *desc);
-void sdbCloseTable(void *handle);
+void *  sdbOpenTable(SSdbTableDesc *desc);
+void    sdbCloseTable(void *handle);
 
 int32_t sdbInsertRow(SSdbOperDesc *pOper);
 int32_t sdbDeleteRow(SSdbOperDesc *pOper);
 int32_t sdbUpdateRow(SSdbOperDesc *pOper);
 
-void *sdbGetRow(void *handle, void *key);
-void *sdbFetchRow(void *handle, void *pNode, void **ppRow);
-int64_t sdbGetNumOfRows(void *handle);
+void    *sdbGetRow(void *handle, void *key);
+void    *sdbFetchRow(void *handle, void *pNode, void **ppRow);
+int64_t  sdbGetNumOfRows(void *handle);
 uint64_t sdbGetVersion();
 
 #ifdef __cplusplus

src/mnode/inc/mgmtShell.h

@@ -22,8 +22,8 @@ extern "C" {
 #include "mnode.h"
 
 int32_t mgmtInitShell();
-void mgmtCleanUpShell();
-void mgmtAddShellMsgHandle(uint8_t msgType, void (*fp)(SQueuedMsg *queuedMsg));
+void    mgmtCleanUpShell();
+void    mgmtAddShellMsgHandle(uint8_t msgType, void (*fp)(SQueuedMsg *queuedMsg));
 
 typedef int32_t (*SShowMetaFp)(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn);
 typedef int32_t (*SShowRetrieveFp)(SShowObj *pShow, char *data, int32_t rows, void *pConn);

src/mnode/inc/mgmtSuperTable.h

@@ -22,31 +22,19 @@ extern "C" {
 
 #include <stdint.h>
 #include <stdbool.h>
-
 #include "taosdef.h"
 #include "mnode.h"
 
 int32_t mgmtInitSuperTables();
 void    mgmtCleanUpSuperTables();
-
 void *  mgmtGetSuperTable(char *tableId);
 
-int32_t mgmtCreateSuperTable(SCMCreateTableMsg *pCreate);
-int32_t mgmtDropSuperTable(SQueuedMsg *newMsg, SDbObj *pDb, SSuperTableObj *pTable);
-int32_t mgmtAddSuperTableTag(SSuperTableObj *pTable, SSchema schema[], int32_t ntags);
-int32_t mgmtDropSuperTableTag(SSuperTableObj *pTable, char *tagName);
-int32_t mgmtModifySuperTableTagNameByName(SSuperTableObj *pTable, char *oldTagName, char *newTagName);
-int32_t mgmtAddSuperTableColumn(SSuperTableObj *pTable, SSchema schema[], int32_t ncols);
-int32_t mgmtDropSuperTableColumnByName(SSuperTableObj *pTable, char *colName);
-
-int32_t mgmtGetSuperTableMeta(SDbObj *pDb, SSuperTableObj *pTable, STableMetaMsg *pMeta, bool usePublicIp);
-void *  mgmtGetSuperTableVgroup(SSuperTableObj *pStable);
-
-int32_t mgmtFindSuperTableTagIndex(SSuperTableObj *pTable, const char *tagName);
-int32_t mgmtSetSchemaFromSuperTable(SSchema *pSchema, SSuperTableObj *pTable);
-
+void    mgmtCreateSuperTable(SQueuedMsg *pMsg);
+void    mgmtDropSuperTable(SQueuedMsg *pMsg, SSuperTableObj *pTable);
+void    mgmtGetSuperTableMeta(SQueuedMsg *pMsg, SSuperTableObj *pTable);
+void    mgmtAlterSuperTable(SQueuedMsg *pMsg, SSuperTableObj *pTable);
 void    mgmtDropAllSuperTables(SDbObj *pDropDb);
-int32_t mgmtExtractTableName(const char* tableId, char* name);
+int32_t mgmtSetSchemaFromSuperTable(SSchema *pSchema, SSuperTableObj *pTable);
 
 #ifdef __cplusplus
 }

src/mnode/inc/mgmtTable.h

@@ -27,13 +27,8 @@ extern "C" {
 
 int32_t     mgmtInitTables();
 void        mgmtCleanUpTables();
-STableInfo* mgmtGetTable(char *tableId);
-
-STableInfo* mgmtGetTableByPos(uint32_t dnodeIp, int32_t vnode, int32_t sid);
-int32_t     mgmtGetTableMeta(SDbObj *pDb, STableInfo *pTable, STableMetaMsg *pMeta, bool usePublicIp);
-
-void    mgmtAddTableIntoSuperTable(SSuperTableObj *pStable);
-void    mgmtRemoveTableFromSuperTable(SSuperTableObj *pStable);
+STableInfo* mgmtGetTable(char* tableId);
+void        mgmtExtractTableName(char* tableId, char* tableName);
 
 #ifdef __cplusplus
 }

src/mnode/inc/mgmtUser.h

@@ -24,7 +24,7 @@ extern "C" {
 int32_t   mgmtInitUsers();
 void      mgmtCleanUpUsers();
 SUserObj *mgmtGetUser(char *name);
-SUserObj *mgmtGetUserFromConn(void *pConn);
+SUserObj *mgmtGetUserFromConn(void *pConn, bool *usePublicIp);
 
 #ifdef __cplusplus
 }

src/mnode/inc/mgmtVgroup.h

@@ -27,17 +27,15 @@ extern "C" {
 int32_t mgmtInitVgroups();
 void    mgmtCleanUpVgroups();
 SVgObj *mgmtGetVgroup(int32_t vgId);
-SVgObj *mgmtGetVgroupByVnode(uint32_t dnode, int32_t vnode);
 void    mgmtDropAllVgroups(SDbObj *pDropDb);
 
 void    mgmtCreateVgroup(SQueuedMsg *pMsg);
 void    mgmtDropVgroup(SVgObj *pVgroup, void *ahandle);
-void    mgmtUpdateVgroup(SVgObj *pVgroup);
 void    mgmtAlterVgroup(SVgObj *pVgroup, void *ahandle);
 SVgObj *mgmtGetAvailableVgroup(SDbObj *pDb);
 
-void    mgmtAddTableIntoVgroup(SVgObj *pVgroup, STableInfo *pTable);
-void    mgmtRemoveTableFromVgroup(SVgObj *pVgroup, STableInfo *pTable);
+void    mgmtAddTableIntoVgroup(SVgObj *pVgroup, SChildTableObj *pTable);
+void    mgmtRemoveTableFromVgroup(SVgObj *pVgroup, SChildTableObj *pTable);
 void    mgmtSendCreateVnodeMsg(SVgObj *pVgroup, SRpcIpSet *ipSet, void *ahandle);
 void    mgmtSendDropVnodeMsg(int32_t vgId, SRpcIpSet *ipSet, void *ahandle);
 

src/mnode/src/mgmtChildTable.c

@@ -21,11 +21,23 @@
 #include "ttime.h"
 #include "tstatus.h"
 #include "tutil.h"
+#include "qast.h"
+#include "qextbuffer.h"
+#include "taoserror.h"
+#include "taosmsg.h"
+#include "tscompression.h"
+#include "tskiplist.h"
+#include "tsqlfunction.h"
+#include "tstatus.h"
+#include "ttime.h"
+#include "name.h"
 #include "mnode.h"
 #include "mgmtAcct.h"
 #include "mgmtChildTable.h"
 #include "mgmtDb.h"
 #include "mgmtDClient.h"
+#include "mgmtDnode.h"
+#include "mgmtDServer.h"
 #include "mgmtGrant.h"
 #include "mgmtMnode.h"
 #include "mgmtProfile.h"
@@ -34,11 +46,21 @@
 #include "mgmtSuperTable.h"
 #include "mgmtTable.h"
 #include "mgmtVgroup.h"
-
-void   *tsChildTableSdb;
-int32_t tsChildTableUpdateSize;
+#include "mgmtUser.h"
+
+static void   *tsChildTableSdb;
+static int32_t tsChildTableUpdateSize;
+static void    mgmtProcessMultiTableMetaMsg(SQueuedMsg *queueMsg);
+static void    mgmtProcessCreateTableRsp(SRpcMsg *rpcMsg);
+static void    mgmtProcessAlterTableRsp(SRpcMsg *rpcMsg);
+static void    mgmtProcessDropTableRsp(SRpcMsg *rpcMsg);
+static void    mgmtProcessTableCfgMsg(SRpcMsg *rpcMsg);
+static int32_t mgmtGetShowTableMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn);
+static int32_t mgmtRetrieveShowTables(SShowObj *pShow, char *data, int32_t rows, void *pConn);
 
 static void mgmtDestroyChildTable(SChildTableObj *pTable) {
+  tfree(pTable->schema);
+  tfree(pTable->sql);
   tfree(pTable);
 }
 
@@ -52,28 +74,31 @@ static int32_t mgmtChildTableActionInsert(SSdbOperDesc *pOper) {
 
   SVgObj *pVgroup = mgmtGetVgroup(pTable->vgId);
   if (pVgroup == NULL) {
-    mError("ctable:%s, not in vgroup:%d", pTable->tableId, pTable->vgId);
+    mError("ctable:%s, not in vgroup:%d", pTable->info.tableId, pTable->vgId);
     return TSDB_CODE_INVALID_VGROUP_ID;
   }
 
   SDbObj *pDb = mgmtGetDb(pVgroup->dbName);
   if (pDb == NULL) {
-    mError("ctable:%s, vgroup:%d not in db:%s", pTable->tableId, pVgroup->vgId, pVgroup->dbName);
+    mError("ctable:%s, vgroup:%d not in db:%s", pTable->info.tableId, pVgroup->vgId, pVgroup->dbName);
     return TSDB_CODE_INVALID_DB;
   }
 
   SAcctObj *pAcct = mgmtGetAcct(pDb->cfg.acct);
   if (pAcct == NULL) {
-    mError("ctable:%s, account:%s not exists", pTable->tableId, pDb->cfg.acct);
+    mError("ctable:%s, account:%s not exists", pTable->info.tableId, pDb->cfg.acct);
     return TSDB_CODE_INVALID_ACCT;
   }
 
-  pTable->superTable = mgmtGetSuperTable(pTable->superTableId);
-  mgmtAddTableIntoSuperTable(pTable->superTable);
-
-  mgmtAddTimeSeries(pAcct, pTable->superTable->numOfColumns - 1);
+  if (pTable->info.type == TSDB_CHILD_TABLE) {
+    pTable->superTable = mgmtGetSuperTable(pTable->superTableId);
+    pTable->superTable->numOfTables++;
+    mgmtAddTimeSeries(pAcct, pTable->superTable->numOfColumns - 1);
+  } else {
+    mgmtAddTimeSeries(pAcct, pTable->numOfColumns - 1);
+  }
   mgmtAddTableIntoDb(pDb);
-  mgmtAddTableIntoVgroup(pVgroup, (STableInfo *) pTable);
+  mgmtAddTableIntoVgroup(pVgroup, pTable);
 
   return TSDB_CODE_SUCCESS;
 }
@@ -91,21 +116,25 @@ static int32_t mgmtChildTableActionDelete(SSdbOperDesc *pOper) {
 
   SDbObj *pDb = mgmtGetDb(pVgroup->dbName);
   if (pDb == NULL) {
-    mError("ctable:%s, vgroup:%d not in DB:%s", pTable->tableId, pVgroup->vgId, pVgroup->dbName);
+    mError("ctable:%s, vgroup:%d not in DB:%s", pTable->info.tableId, pVgroup->vgId, pVgroup->dbName);
     return TSDB_CODE_INVALID_DB;
   }
 
   SAcctObj *pAcct = mgmtGetAcct(pDb->cfg.acct);
   if (pAcct == NULL) {
-    mError("ctable:%s, account:%s not exists", pTable->tableId, pDb->cfg.acct);
+    mError("ctable:%s, account:%s not exists", pTable->info.tableId, pDb->cfg.acct);
     return TSDB_CODE_INVALID_ACCT;
   }
 
-  mgmtRestoreTimeSeries(pAcct, pTable->superTable->numOfColumns - 1);
+  if (pTable->info.type == TSDB_CHILD_TABLE) {
+    mgmtRestoreTimeSeries(pAcct, pTable->superTable->numOfColumns - 1);
+    pTable->superTable->numOfTables--;
+  } else {
+    mgmtRestoreTimeSeries(pAcct, pTable->numOfColumns - 1);
+  }
   mgmtRemoveTableFromDb(pDb);
-  mgmtRemoveTableFromVgroup(pVgroup, (STableInfo *) pTable);
-  mgmtRemoveTableFromSuperTable(pTable->superTable);
-
+  mgmtRemoveTableFromVgroup(pVgroup, pTable);
+ 
   return TSDB_CODE_SUCCESS;
 }
 
@@ -117,22 +146,50 @@ static int32_t mgmtChildTableActionEncode(SSdbOperDesc *pOper) {
   SChildTableObj *pTable = pOper->pObj;
   assert(pTable != NULL && pOper->rowData != NULL);
 
-  memcpy(pOper->rowData, pTable, tsChildTableUpdateSize);
-  pOper->rowSize = tsChildTableUpdateSize;
+  if (pTable->info.type == TSDB_CHILD_TABLE) {
+    memcpy(pOper->rowData, pTable, tsChildTableUpdateSize);
+    pOper->rowSize = tsChildTableUpdateSize;
+  } else {
+    int32_t schemaSize = pTable->numOfColumns * sizeof(SSchema);
+    if (pOper->maxRowSize < tsChildTableUpdateSize + schemaSize) {
+      return TSDB_CODE_INVALID_MSG_LEN;
+    }
+    memcpy(pOper->rowData, pTable, tsChildTableUpdateSize);
+    memcpy(pOper->rowData + tsChildTableUpdateSize, pTable->schema, schemaSize);
+    memcpy(pOper->rowData + tsChildTableUpdateSize + schemaSize, pTable->sql, pTable->sqlLen);
+    pOper->rowSize = tsChildTableUpdateSize + schemaSize + pTable->sqlLen;
+  }
 
   return TSDB_CODE_SUCCESS;
 }
 
 static int32_t mgmtChildTableActionDecode(SSdbOperDesc *pOper) {
   assert(pOper->rowData != NULL);
-
-  pOper->pObj = calloc(1, sizeof(SChildTableObj));
-  if (pOper->pObj == NULL) {
+  SChildTableObj *pTable = calloc(1, sizeof(SChildTableObj));
+  if (pTable == NULL) {
     return TSDB_CODE_SERV_OUT_OF_MEMORY;
   }
 
-  memcpy(pOper->pObj, pOper->rowData, tsChildTableUpdateSize);
+  memcpy(pTable, pOper->rowData, tsChildTableUpdateSize);
+
+  if (pTable->info.type != TSDB_CHILD_TABLE) {
+    int32_t schemaSize = pTable->numOfColumns * sizeof(SSchema);
+    pTable->schema = (SSchema *)malloc(schemaSize);
+    if (pTable->schema == NULL) {
+      mgmtDestroyChildTable(pTable);
+      return TSDB_CODE_SERV_OUT_OF_MEMORY;
+    }
+    memcpy(pTable->schema, pOper->rowData + tsChildTableUpdateSize, schemaSize);
+
+    pTable->sql = (char *)malloc(pTable->sqlLen);
+    if (pTable->sql == NULL) {
+      mgmtDestroyChildTable(pTable);
+      return TSDB_CODE_SERV_OUT_OF_MEMORY;
+    }
+    memcpy(pTable->sql, pOper->rowData + tsChildTableUpdateSize + schemaSize, pTable->sqlLen);
+  }
 
+  pOper->pObj = pTable;
   return TSDB_CODE_SUCCESS;
 }
 
@@ -147,7 +204,7 @@ int32_t mgmtInitChildTables() {
   SSdbTableDesc tableDesc = {
     .tableName    = "ctables",
     .hashSessions = tsMaxTables,
-    .maxRowSize   = tsChildTableUpdateSize,
+    .maxRowSize   = sizeof(SChildTableObj) + sizeof(SSchema) * TSDB_MAX_COLUMNS,
     .keyType      = SDB_KEY_TYPE_STRING,
     .insertFp     = mgmtChildTableActionInsert,
     .deleteFp     = mgmtChildTableActionDelete,
@@ -165,14 +222,15 @@ int32_t mgmtInitChildTables() {
 
   pNode = NULL;
   while (1) {
+    pLastNode = pNode;
     pNode = sdbFetchRow(tsChildTableSdb, pNode, (void **)&pTable);
     if (pTable == NULL) {
       break;
     }
 
-    SDbObj *pDb = mgmtGetDbByTableId(pTable->tableId);
+    SDbObj *pDb = mgmtGetDbByTableId(pTable->info.tableId);
     if (pDb == NULL) {
-      mError("ctable:%s, failed to get db, discard it", pTable->tableId);
+      mError("ctable:%s, failed to get db, discard it", pTable->info.tableId);
       SSdbOperDesc desc = {0};
       desc.type = SDB_OPER_TYPE_LOCAL;
       desc.pObj = pTable;
@@ -184,7 +242,7 @@ int32_t mgmtInitChildTables() {
 
     SVgObj *pVgroup = mgmtGetVgroup(pTable->vgId);
     if (pVgroup == NULL) {
-      mError("ctable:%s, failed to get vgroup:%d sid:%d, discard it", pTable->tableId, pTable->vgId, pTable->sid);
+      mError("ctable:%s, failed to get vgroup:%d sid:%d, discard it", pTable->info.tableId, pTable->vgId, pTable->sid);
       pTable->vgId = 0;
       SSdbOperDesc desc = {0};
       desc.type = SDB_OPER_TYPE_LOCAL;
@@ -197,7 +255,7 @@ int32_t mgmtInitChildTables() {
 
     if (strcmp(pVgroup->dbName, pDb->name) != 0) {
       mError("ctable:%s, db:%s not match with vgroup:%d db:%s sid:%d, discard it",
-             pTable->tableId, pDb->name, pTable->vgId, pVgroup->dbName, pTable->sid);
+             pTable->info.tableId, pDb->name, pTable->vgId, pVgroup->dbName, pTable->sid);
       pTable->vgId = 0;
       SSdbOperDesc desc = {0};
       desc.type = SDB_OPER_TYPE_LOCAL;
@@ -209,7 +267,7 @@ int32_t mgmtInitChildTables() {
     }
 
     if (pVgroup->tableList == NULL) {
-      mError("ctable:%s, vgroup:%d tableList is null", pTable->tableId, pTable->vgId);
+      mError("ctable:%s, vgroup:%d tableList is null", pTable->info.tableId, pTable->vgId);
       pTable->vgId = 0;
       SSdbOperDesc desc = {0};
       desc.type = SDB_OPER_TYPE_LOCAL;
@@ -220,20 +278,30 @@ int32_t mgmtInitChildTables() {
       continue;
     }
 
-    SSuperTableObj *pSuperTable = mgmtGetSuperTable(pTable->superTableId);
-    if (pSuperTable == NULL) {
-      mError("ctable:%s, stable:%s not exist", pTable->tableId, pTable->superTableId);
-      pTable->vgId = 0;
-      SSdbOperDesc desc = {0};
-      desc.type = SDB_OPER_TYPE_LOCAL;
-      desc.pObj = pTable;
-      desc.table = tsChildTableSdb;
-      sdbDeleteRow(&desc);
-      pNode = pLastNode;
-      continue;
+    if (pTable->info.type == TSDB_CHILD_TABLE) {
+      SSuperTableObj *pSuperTable = mgmtGetSuperTable(pTable->superTableId);
+      if (pSuperTable == NULL) {
+        mError("ctable:%s, stable:%s not exist", pTable->info.tableId, pTable->superTableId);
+        pTable->vgId = 0;
+        SSdbOperDesc desc = {0};
+        desc.type = SDB_OPER_TYPE_LOCAL;
+        desc.pObj = pTable;
+        desc.table = tsChildTableSdb;
+        sdbDeleteRow(&desc);
+        pNode = pLastNode;
+        continue;
+      }
     }
   }
 
+  mgmtAddShellMsgHandle(TSDB_MSG_TYPE_CM_TABLES_META, mgmtProcessMultiTableMetaMsg);
+  mgmtAddShellShowMetaHandle(TSDB_MGMT_TABLE_TABLE, mgmtGetShowTableMeta);
+  mgmtAddShellShowRetrieveHandle(TSDB_MGMT_TABLE_TABLE, mgmtRetrieveShowTables);
+  mgmtAddDClientRspHandle(TSDB_MSG_TYPE_MD_CREATE_TABLE_RSP, mgmtProcessCreateTableRsp);
+  mgmtAddDClientRspHandle(TSDB_MSG_TYPE_MD_DROP_TABLE_RSP, mgmtProcessDropTableRsp);
+  mgmtAddDClientRspHandle(TSDB_MSG_TYPE_MD_ALTER_TABLE_RSP, mgmtProcessAlterTableRsp);
+  mgmtAddDServerMsgHandle(TSDB_MSG_TYPE_DM_CONFIG_TABLE, mgmtProcessTableCfgMsg);
+
   mTrace("child table is initialized");
   return 0;
 }
@@ -242,110 +310,228 @@ void mgmtCleanUpChildTables() {
   sdbCloseTable(tsChildTableSdb);
 }
 
-void *mgmtBuildCreateChildTableMsg(SCMCreateTableMsg *pMsg, SChildTableObj *pTable) {
+static void *mgmtBuildCreateChildTableMsg(SCMCreateTableMsg *pMsg, SChildTableObj *pTable) {
   char *  pTagData = NULL;
   int32_t tagDataLen = 0;
-  if (pMsg != NULL) {
+  int32_t totalCols = 0;
+  int32_t contLen = 0;
+  if (pTable->info.type == TSDB_CHILD_TABLE && pMsg != NULL) {
     pTagData = pMsg->schema + TSDB_TABLE_ID_LEN + 1;
     tagDataLen = htonl(pMsg->contLen) - sizeof(SCMCreateTableMsg) - TSDB_TABLE_ID_LEN - 1;
+    totalCols = pTable->superTable->numOfColumns + pTable->superTable->numOfTags;
+    contLen = sizeof(SMDCreateTableMsg) + totalCols * sizeof(SSchema) + tagDataLen + pTable->sqlLen;
+  } else {
+    totalCols = pTable->numOfColumns;
+    contLen = sizeof(SMDCreateTableMsg) + totalCols * sizeof(SSchema) + pTable->sqlLen;
   }
 
-  int32_t totalCols  = pTable->superTable->numOfColumns + pTable->superTable->numOfTags;
-  int32_t contLen    = sizeof(SMDCreateTableMsg) + totalCols * sizeof(SSchema) + tagDataLen;
-
   SMDCreateTableMsg *pCreate = rpcMallocCont(contLen);
   if (pCreate == NULL) {
     terrno = TSDB_CODE_SERV_OUT_OF_MEMORY;
     return NULL;
   }
 
-  memcpy(pCreate->tableId, pTable->tableId, TSDB_TABLE_ID_LEN + 1);
-  memcpy(pCreate->superTableId, pTable->superTable->tableId, TSDB_TABLE_ID_LEN + 1);
+  memcpy(pCreate->tableId, pTable->info.tableId, TSDB_TABLE_ID_LEN + 1);
   pCreate->contLen       = htonl(contLen);
   pCreate->vgId          = htonl(pTable->vgId);
-  pCreate->tableType     = pTable->type;
-  pCreate->numOfColumns  = htons(pTable->superTable->numOfColumns);
-  pCreate->numOfTags     = htons(pTable->superTable->numOfTags);
+  pCreate->tableType     = pTable->info.type;
+  pCreate->createdTime   = htobe64(pTable->createdTime);
   pCreate->sid           = htonl(pTable->sid);
-  pCreate->sversion      = htonl(pTable->superTable->sversion);
-  pCreate->tagDataLen    = htonl(tagDataLen);
-  pCreate->sqlDataLen    = 0;
+  pCreate->sqlDataLen    = htonl(pTable->sqlLen);
   pCreate->uid           = htobe64(pTable->uid);
-  pCreate->superTableUid = htobe64(pTable->superTable->uid);
-  pCreate->createdTime   = htobe64(pTable->createdTime);
-
+  
+  if (pTable->info.type == TSDB_CHILD_TABLE) {
+    memcpy(pCreate->superTableId, pTable->superTable->info.tableId, TSDB_TABLE_ID_LEN + 1);
+    pCreate->numOfColumns  = htons(pTable->superTable->numOfColumns);
+    pCreate->numOfTags     = htons(pTable->superTable->numOfTags);
+    pCreate->sversion      = htonl(pTable->superTable->sversion);
+    pCreate->tagDataLen    = htonl(tagDataLen);
+    pCreate->superTableUid = htobe64(pTable->superTable->uid);
+  } else {
+    pCreate->numOfColumns  = htons(pTable->numOfColumns);
+    pCreate->numOfTags     = 0;
+    pCreate->sversion      = htonl(pTable->sversion);
+    pCreate->tagDataLen    = 0;
+    pCreate->superTableUid = 0;
+  }
+ 
   SSchema *pSchema = (SSchema *) pCreate->data;
-  memcpy(pSchema, pTable->superTable->schema, totalCols * sizeof(SSchema));
+  if (pTable->info.type == TSDB_CHILD_TABLE) {
+    memcpy(pSchema, pTable->superTable->schema, totalCols * sizeof(SSchema));
+  } else {
+    memcpy(pSchema, pTable->schema, totalCols * sizeof(SSchema));
+  }
   for (int32_t col = 0; col < totalCols; ++col) {
     pSchema->bytes = htons(pSchema->bytes);
     pSchema->colId = htons(pSchema->colId);
     pSchema++;
   }
 
-  if (pMsg != NULL) {
+  if (pTable->info.type == TSDB_CHILD_TABLE && pMsg != NULL) {
     memcpy(pCreate->data + totalCols * sizeof(SSchema), pTagData, tagDataLen);
+    memcpy(pCreate->data + totalCols * sizeof(SSchema) + tagDataLen, pTable->sql, pTable->sqlLen);
   }
 
   return pCreate;
 }
 
-void* mgmtCreateChildTable(SCMCreateTableMsg *pCreate, SVgObj *pVgroup, int32_t tid) {
-  char *pTagData = (char *) pCreate->schema;  // it is a tag key
-  SSuperTableObj *pSuperTable = mgmtGetSuperTable(pTagData);
-  if (pSuperTable == NULL) {
-    mError("ctable:%s, corresponding super table does not exist", pCreate->tableId);
-    terrno = TSDB_CODE_INVALID_TABLE;
-    return NULL;
-  }
-
-  SChildTableObj *pTable = (SChildTableObj *) calloc(sizeof(SChildTableObj), 1);
+static SChildTableObj* mgmtDoCreateChildTable(SCMCreateTableMsg *pCreate, SVgObj *pVgroup, int32_t tid) {
+  SChildTableObj *pTable = (SChildTableObj *) calloc(1, sizeof(SChildTableObj));
   if (pTable == NULL) {
     mError("ctable:%s, failed to alloc memory", pCreate->tableId);
     terrno = TSDB_CODE_SERV_OUT_OF_MEMORY;
     return NULL;
   }
 
-  strcpy(pTable->tableId, pCreate->tableId);
-  strcpy(pTable->superTableId, pSuperTable->tableId);
-  pTable->type        = TSDB_CHILD_TABLE;
+  if (pCreate->numOfColumns == 0) {
+    pTable->info.type = TSDB_CHILD_TABLE;
+  } else {
+    pTable->info.type = TSDB_NORMAL_TABLE;
+  }
+
+  strcpy(pTable->info.tableId, pCreate->tableId);  
   pTable->createdTime = taosGetTimestampMs();
-  pTable->uid         = (((uint64_t) pTable->vgId) << 40) + ((((uint64_t) pTable->sid) & ((1ul << 24) - 1ul)) << 16) +
-                        (sdbGetVersion() & ((1ul << 16) - 1ul));
   pTable->sid         = tid;
   pTable->vgId        = pVgroup->vgId;
-  pTable->superTable  = pSuperTable;
+    
+  if (pTable->info.type == TSDB_CHILD_TABLE) {
+    char *pTagData = (char *) pCreate->schema;  // it is a tag key
+    SSuperTableObj *pSuperTable = mgmtGetSuperTable(pTagData);
+    if (pSuperTable == NULL) {
+      mError("ctable:%s, corresponding super table does not exist", pCreate->tableId);
+      free(pTable);
+      terrno = TSDB_CODE_INVALID_TABLE;
+      return NULL;
+    }
+
+    strcpy(pTable->superTableId, pSuperTable->info.tableId);
+    pTable->uid         = (((uint64_t) pTable->vgId) << 40) + ((((uint64_t) pTable->sid) & ((1ul << 24) - 1ul)) << 16) +
+                          (sdbGetVersion() & ((1ul << 16) - 1ul));
+    pTable->superTable  = pSuperTable;
+  } else {
+    pTable->uid          = (((uint64_t) pTable->createdTime) << 16) + (sdbGetVersion() & ((1ul << 16) - 1ul));
+    pTable->sversion     = 0;
+    pTable->numOfColumns = htons(pCreate->numOfColumns);
+    pTable->sqlLen       = htons(pCreate->sqlLen);
+
+    int32_t numOfCols  = pTable->numOfColumns;
+    int32_t schemaSize = numOfCols * sizeof(SSchema);
+    pTable->schema     = (SSchema *) calloc(1, schemaSize);
+    if (pTable->schema == NULL) {
+      free(pTable);
+      terrno = TSDB_CODE_SERV_OUT_OF_MEMORY;
+      return NULL;
+    }
+    memcpy(pTable->schema, pCreate->schema, numOfCols * sizeof(SSchema));
 
+    pTable->nextColId = 0;
+    for (int32_t col = 0; col < numOfCols; col++) {
+      SSchema *tschema   = pTable->schema;
+      tschema[col].colId = pTable->nextColId++;
+      tschema[col].bytes = htons(tschema[col].bytes);
+    }
+
+    if (pTable->sqlLen != 0) {
+      pTable->info.type = TSDB_STREAM_TABLE;
+      pTable->sql = calloc(1, pTable->sqlLen);
+      if (pTable->sql == NULL) {
+        free(pTable);
+        terrno = TSDB_CODE_SERV_OUT_OF_MEMORY;
+        return NULL;
+      }
+      memcpy(pTable->sql, (char *) (pCreate->schema) + numOfCols * sizeof(SSchema), pTable->sqlLen);
+      pTable->sql[pTable->sqlLen - 1] = 0;
+      mTrace("table:%s, stream sql len:%d sql:%s", pTable->info.tableId, pTable->sqlLen, pTable->sql);
+    }
+  }
+  
   SSdbOperDesc desc = {0};
   desc.type = SDB_OPER_TYPE_GLOBAL;
   desc.pObj = pTable;
   desc.table = tsChildTableSdb;
-  sdbInsertRow(&desc);
-
-  if (sdbInsertRow(&desc) < 0) {
+  
+  if (sdbInsertRow(&desc) != TSDB_CODE_SUCCESS) {
     free(pTable);
     mError("ctable:%s, update sdb error", pCreate->tableId);
     terrno = TSDB_CODE_SDB_ERROR;
     return NULL;
   }
 
-  mTrace("ctable:%s, create ctable in vgroup, uid:%" PRIu64 , pTable->tableId, pTable->uid);
+  mTrace("ctable:%s, create ctable in vgroup, uid:%" PRIu64 , pTable->info.tableId, pTable->uid);
   return pTable;
 }
 
-int32_t mgmtDropChildTable(SQueuedMsg *newMsg, SChildTableObj *pTable) {
+void mgmtCreateChildTable(SQueuedMsg *pMsg) {
+  SCMCreateTableMsg *pCreate = pMsg->pCont;
+
+  int32_t code = mgmtCheckTimeSeries(htons(pCreate->numOfColumns));
+  if (code != TSDB_CODE_SUCCESS) {
+    mError("table:%s, failed to create, timeseries exceed the limit", pCreate->tableId);
+    mgmtSendSimpleResp(pMsg->thandle, code);
+    return;
+  }
+
+  SQueuedMsg *newMsg = malloc(sizeof(SQueuedMsg));
+  memcpy(newMsg, pMsg, sizeof(SQueuedMsg));
+  pMsg->pCont = NULL;
+
+  SVgObj *pVgroup = mgmtGetAvailableVgroup(pMsg->pDb);
+  if (pVgroup == NULL) {
+    mTrace("table:%s, start to create a new vgroup", pCreate->tableId);
+    mgmtCreateVgroup(newMsg);
+    return;
+  }
+
+  int32_t sid = taosAllocateId(pVgroup->idPool);
+  if (sid < 0) {
+    mTrace("tables:%s, no enough sid in vgroup:%d", pVgroup->vgId);
+    mgmtCreateVgroup(newMsg);
+    return;
+  }
+
+  SChildTableObj *pTable = mgmtDoCreateChildTable(pCreate, pVgroup, sid);
+  if (pTable == NULL) {
+    mgmtSendSimpleResp(pMsg->thandle, terrno);
+    mgmtFreeQueuedMsg(newMsg);
+    return;
+  }
+
+  SMDCreateTableMsg *pMDCreate = mgmtBuildCreateChildTableMsg(pCreate, (SChildTableObj *) pTable);
+  if (pMDCreate == NULL) {
+    mgmtSendSimpleResp(pMsg->thandle, terrno);
+    mgmtFreeQueuedMsg(newMsg);
+    return;
+  }
+
+  SRpcIpSet ipSet = mgmtGetIpSetFromVgroup(pVgroup);
+  SRpcMsg rpcMsg = {
+      .handle  = newMsg,
+      .pCont   = pMDCreate,
+      .contLen = htonl(pMDCreate->contLen),
+      .code    = 0,
+      .msgType = TSDB_MSG_TYPE_MD_CREATE_TABLE
+  };
+
+  newMsg->ahandle = pTable;
+  mgmtSendMsgToDnode(&ipSet, &rpcMsg);
+}
+
+void mgmtDropChildTable(SQueuedMsg *pMsg, SChildTableObj *pTable) {
   SVgObj *pVgroup = mgmtGetVgroup(pTable->vgId);
   if (pVgroup == NULL) {
-    mError("ctable:%s, failed to drop child table, vgroup not exist", pTable->tableId);
-    return TSDB_CODE_OTHERS;
+    mError("ctable:%s, failed to drop child table, vgroup not exist", pTable->info.tableId);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_OTHERS);
+    return;
   }
 
   SMDDropTableMsg *pDrop = rpcMallocCont(sizeof(SMDDropTableMsg));
   if (pDrop == NULL) {
-    mError("ctable:%s, failed to drop child table, no enough memory", pTable->tableId);
-    return TSDB_CODE_SERV_OUT_OF_MEMORY;
+    mError("ctable:%s, failed to drop child table, no enough memory", pTable->info.tableId);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_SERV_OUT_OF_MEMORY);
+    return;
   }
 
-  strcpy(pDrop->tableId, pTable->tableId);
+  strcpy(pDrop->tableId, pTable->info.tableId);
   pDrop->vgId    = htonl(pTable->vgId);
   pDrop->contLen = htonl(sizeof(SMDDropTableMsg));
   pDrop->sid     = htonl(pTable->sid);
@@ -355,17 +541,15 @@ int32_t mgmtDropChildTable(SQueuedMsg *newMsg, SChildTableObj *pTable) {
 
   mTrace("ctable:%s, send drop table msg", pDrop->tableId);
   SRpcMsg rpcMsg = {
-    .handle  = newMsg,
+    .handle  = pMsg,
     .pCont   = pDrop,
     .contLen = sizeof(SMDDropTableMsg),
     .code    = 0,
     .msgType = TSDB_MSG_TYPE_MD_DROP_TABLE
   };
 
-  newMsg->ahandle = pTable;
+  pMsg->ahandle = pTable;
   mgmtSendMsgToDnode(&ipSet, &rpcMsg);
-
-  return TSDB_CODE_SUCCESS;
 }
 
 void* mgmtGetChildTable(char *tableId) {
@@ -380,7 +564,7 @@ int32_t mgmtModifyChildTableTagValueByName(SChildTableObj *pTable, char *tagName
 //  }
 //
 //  //TODO send msg to dnode
-//  mTrace("Succeed to modify tag column %d of table %s", col, pTable->tableId);
+//  mTrace("Succeed to modify tag column %d of table %s", col, pTable->info.tableId);
 //  return TSDB_CODE_SUCCESS;
 
 //  int32_t rowSize = 0;
@@ -412,44 +596,222 @@ int32_t mgmtModifyChildTableTagValueByName(SChildTableObj *pTable, char *tagName
 //  if (pTable->isDirty) pTable->isDirty = 0;
 //
 //  if (ret < 0) {
-//    mError("Failed to modify tag column %d of table %s", col, pTable->tableId);
+//    mError("Failed to modify tag column %d of table %s", col, pTable->info.tableId);
 //    return TSDB_CODE_APP_ERROR;
 //  }
 //
-//  mTrace("Succeed to modify tag column %d of table %s", col, pTable->tableId);
+//  mTrace("Succeed to modify tag column %d of table %s", col, pTable->info.tableId);
 //  return TSDB_CODE_SUCCESS;
   return 0;
 }
 
-int32_t mgmtGetChildTableMeta(SDbObj *pDb, SChildTableObj *pTable, STableMetaMsg *pMeta, bool usePublicIp) {
-  pMeta->uid          = htobe64(pTable->uid);
-  pMeta->sid          = htonl(pTable->sid);
-  pMeta->vgId         = htonl(pTable->vgId);
-  pMeta->sversion     = htons(pTable->superTable->sversion);
-  pMeta->precision    = pDb->cfg.precision;
-  pMeta->numOfTags    = pTable->superTable->numOfTags;
-  pMeta->numOfColumns = htons(pTable->superTable->numOfColumns);
-  pMeta->tableType    = pTable->type;
-  pMeta->contLen      = sizeof(STableMetaMsg) + mgmtSetSchemaFromSuperTable(pMeta->schema, pTable->superTable);
-  strncpy(pMeta->tableId, pTable->tableId, tListLen(pTable->tableId));
 
+static int32_t mgmtFindNormalTableColumnIndex(SChildTableObj *pTable, char *colName) {
+  SSchema *schema = (SSchema *) pTable->schema;
+  for (int32_t i = 0; i < pTable->numOfColumns; i++) {
+    if (strcasecmp(schema[i].name, colName) == 0) {
+      return i;
+    }
+  }
+
+  return -1;
+}
+
+static int32_t mgmtAddNormalTableColumn(SChildTableObj *pTable, SSchema schema[], int32_t ncols) {
+  if (ncols <= 0) {
+    return TSDB_CODE_APP_ERROR;
+  }
+
+  for (int32_t i = 0; i < ncols; i++) {
+    if (mgmtFindNormalTableColumnIndex(pTable, schema[i].name) > 0) {
+      return TSDB_CODE_APP_ERROR;
+    }
+  }
+
+  SDbObj *pDb = mgmtGetDbByTableId(pTable->info.tableId);
+  if (pDb == NULL) {
+    mError("table: %s not belongs to any database", pTable->info.tableId);
+    return TSDB_CODE_APP_ERROR;
+  }
+
+  SAcctObj *pAcct = mgmtGetAcct(pDb->cfg.acct);
+  if (pAcct == NULL) {
+    mError("DB: %s not belongs to andy account", pDb->name);
+    return TSDB_CODE_APP_ERROR;
+  }
+
+  int32_t schemaSize = pTable->numOfColumns * sizeof(SSchema);
+  pTable->schema = realloc(pTable->schema, schemaSize + sizeof(SSchema) * ncols);
+
+  memcpy(pTable->schema + schemaSize, schema, sizeof(SSchema) * ncols);
+
+  SSchema *tschema = (SSchema *) (pTable->schema + sizeof(SSchema) * pTable->numOfColumns);
+  for (int32_t i = 0; i < ncols; i++) {
+    tschema[i].colId = pTable->nextColId++;
+  }
+
+  pTable->numOfColumns += ncols;
+  pTable->sversion++;
+  pAcct->acctInfo.numOfTimeSeries += ncols;
+
+  SSdbOperDesc desc = {0};
+  desc.type = SDB_OPER_TYPE_GLOBAL;
+  desc.pObj = pTable;
+  desc.table = tsChildTableSdb;
+  desc.rowData = pTable;
+  desc.rowSize = tsChildTableUpdateSize;
+  sdbUpdateRow(&desc);
+
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t mgmtDropNormalTableColumnByName(SChildTableObj *pTable, char *colName) {
+  int32_t col = mgmtFindNormalTableColumnIndex(pTable, colName);
+  if (col < 0) {
+    return TSDB_CODE_APP_ERROR;
+  }
+
+  SDbObj *pDb = mgmtGetDbByTableId(pTable->info.tableId);
+  if (pDb == NULL) {
+    mError("table: %s not belongs to any database", pTable->info.tableId);
+    return TSDB_CODE_APP_ERROR;
+  }
+
+  SAcctObj *pAcct = mgmtGetAcct(pDb->cfg.acct);
+  if (pAcct == NULL) {
+    mError("DB: %s not belongs to any account", pDb->name);
+    return TSDB_CODE_APP_ERROR;
+  }
+
+  memmove(pTable->schema + sizeof(SSchema) * col, pTable->schema + sizeof(SSchema) * (col + 1),
+          sizeof(SSchema) * (pTable->numOfColumns - col - 1));
+
+  pTable->numOfColumns--;
+  pTable->sversion++;
+
+  pAcct->acctInfo.numOfTimeSeries--;
+
+  SSdbOperDesc desc = {0};
+  desc.type = SDB_OPER_TYPE_GLOBAL;
+  desc.pObj = pTable;
+  desc.table = tsChildTableSdb;
+  desc.rowData = pTable;
+  desc.rowSize = tsChildTableUpdateSize;
+  sdbUpdateRow(&desc);
+
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t mgmtSetSchemaFromNormalTable(SSchema *pSchema, SChildTableObj *pTable) {
+  int32_t numOfCols = pTable->numOfColumns;
+  for (int32_t i = 0; i < numOfCols; ++i) {
+    strcpy(pSchema->name, pTable->schema[i].name);
+    pSchema->type  = pTable->schema[i].type;
+    pSchema->bytes = htons(pTable->schema[i].bytes);
+    pSchema->colId = htons(pTable->schema[i].colId);
+    pSchema++;
+  }
+
+  return numOfCols * sizeof(SSchema);
+}
+
+static int32_t mgmtDoGetChildTableMeta(SDbObj *pDb, SChildTableObj *pTable, STableMetaMsg *pMeta, bool usePublicIp) {
+  pMeta->uid       = htobe64(pTable->uid);
+  pMeta->sid       = htonl(pTable->sid);
+  pMeta->vgId      = htonl(pTable->vgId);
+  pMeta->precision = pDb->cfg.precision;
+  pMeta->tableType = pTable->info.type;
+  strncpy(pMeta->tableId, pTable->info.tableId, tListLen(pTable->info.tableId));
+
+  if (pTable->info.type == TSDB_CHILD_TABLE) {
+    pMeta->sversion     = htons(pTable->superTable->sversion);
+    pMeta->numOfTags    = 0;
+    pMeta->numOfColumns = htons((int16_t)pTable->superTable->numOfColumns);
+    pMeta->contLen      = sizeof(STableMetaMsg) + mgmtSetSchemaFromSuperTable(pMeta->schema, pTable->superTable);
+  } else {
+    pMeta->sversion     = htons(pTable->sversion);
+    pMeta->numOfTags    = 0;
+    pMeta->numOfColumns = htons((int16_t)pTable->numOfColumns);
+    pMeta->contLen      = sizeof(STableMetaMsg) + mgmtSetSchemaFromNormalTable(pMeta->schema, pTable); 
+  }
+  
   SVgObj *pVgroup = mgmtGetVgroup(pTable->vgId);
   if (pVgroup == NULL) {
-    return TSDB_CODE_INVALID_TABLE;
+    mError("table:%s, failed to get table meta, db not selected", pTable->info.tableId);
+    return TSDB_CODE_INVALID_VGROUP_ID;
   }
+
   for (int32_t i = 0; i < TSDB_VNODES_SUPPORT; ++i) {
     if (usePublicIp) {
-      pMeta->vpeerDesc[i].ip    = pVgroup->vnodeGid[i].publicIp;
+      pMeta->vpeerDesc[i].ip = pVgroup->vnodeGid[i].publicIp;
     } else {
-      pMeta->vpeerDesc[i].ip    = pVgroup->vnodeGid[i].privateIp;
+      pMeta->vpeerDesc[i].ip = pVgroup->vnodeGid[i].privateIp;
     }
     pMeta->vpeerDesc[i].vnode = htonl(pVgroup->vnodeGid[i].vnode);
   }
   pMeta->numOfVpeers = pVgroup->numOfVnodes;
 
+  mTrace("table:%s, uid:%" PRIu64 " table meta is retrieved", pTable->info.tableId, pTable->uid);
+
   return TSDB_CODE_SUCCESS;
 }
 
+void mgmtGetChildTableMeta(SQueuedMsg *pMsg, SChildTableObj *pTable) {
+  SCMTableInfoMsg *pInfo = pMsg->pCont;
+  SDbObj *pDb = mgmtGetDbByTableId(pInfo->tableId);
+  if (pDb == NULL || pDb->dirty) {
+    mError("table:%s, failed to get table meta, db not selected", pInfo->tableId);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_DB_NOT_SELECTED);
+    return;
+  }
+
+  if (pTable == NULL) {
+    if (htons(pInfo->createFlag) != 1) {
+      mError("table:%s, failed to get table meta, table not exist", pInfo->tableId);
+      mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_INVALID_TABLE);
+      return;
+    } else {
+      //TODO: on demand create table from super table if table does not exists
+      int32_t contLen = sizeof(SCMCreateTableMsg) + sizeof(STagData);
+      SCMCreateTableMsg *pCreateMsg = rpcMallocCont(contLen);
+      if (pCreateMsg == NULL) {
+        mError("table:%s, failed to create table while get meta info, no enough memory", pInfo->tableId);
+        mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_SERV_OUT_OF_MEMORY);
+        return;
+      }
+      memcpy(pCreateMsg->schema, pInfo->tags, sizeof(STagData));
+      strcpy(pCreateMsg->tableId, pInfo->tableId);
+
+      SQueuedMsg *newMsg = malloc(sizeof(SQueuedMsg));
+      memcpy(newMsg, pMsg, sizeof(SQueuedMsg));
+      pMsg->pCont = NULL;
+
+      newMsg->ahandle = newMsg->pCont;
+      newMsg->pCont = pCreateMsg;
+      mTrace("table:%s, start to create in demand", pInfo->tableId);
+      mgmtAddToShellQueue(newMsg);
+      return;
+    }
+  }
+
+  STableMetaMsg *pMeta = rpcMallocCont(sizeof(STableMetaMsg) + sizeof(SSchema) * TSDB_MAX_COLUMNS);
+  if (pMeta == NULL) {
+    mError("table:%s, failed to get table meta, no enough memory", pTable->info.tableId);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_SERV_OUT_OF_MEMORY);
+    return;
+  }
+
+  mgmtDoGetChildTableMeta(pDb, pTable, pMeta, pMsg->usePublicIp);
+
+  SRpcMsg rpcRsp = {
+    .handle = pMsg->thandle, 
+    .pCont = pMeta, 
+    .contLen = pMeta->contLen,
+  };
+  pMeta->contLen = htons(pMeta->contLen);
+  rpcSendResponse(&rpcRsp);
+}
+
 void mgmtDropAllChildTables(SDbObj *pDropDb) {
   void *pNode = NULL;
   void *pLastNode = NULL;
@@ -463,7 +825,7 @@ void mgmtDropAllChildTables(SDbObj *pDropDb) {
       break;
     }
 
-    if (strncmp(pDropDb->name, pTable->tableId, dbNameLen) == 0) {
+    if (strncmp(pDropDb->name, pTable->info.tableId, dbNameLen) == 0) {
       SSdbOperDesc oper = {
         .type = SDB_OPER_TYPE_LOCAL,
         .table = tsChildTableSdb,
@@ -504,5 +866,356 @@ void mgmtDropAllChildTablesInStable(SSuperTableObj *pStable) {
     }
   }
 
-  mTrace("stable:%s, all child tables:%d is dropped from sdb", pStable->tableId, numOfTables);
+  mTrace("stable:%s, all child tables:%d is dropped from sdb", pStable->info.tableId, numOfTables);
+}
+
+static STableInfo* mgmtGetTableByPos(uint32_t dnodeId, int32_t vnode, int32_t sid) {
+  SDnodeObj *pObj = mgmtGetDnode(dnodeId);
+  SVgObj *pVgroup = mgmtGetVgroup(vnode);
+
+  if (pObj == NULL || pVgroup == NULL) {
+    return NULL;
+  }
+
+  return (STableInfo *)pVgroup->tableList[sid];
+}
+
+static void mgmtProcessTableCfgMsg(SRpcMsg *rpcMsg) {
+  if (mgmtCheckRedirect(rpcMsg->handle)) return;
+
+  SDMConfigTableMsg *pCfg = (SDMConfigTableMsg *) rpcMsg->pCont;
+  pCfg->dnode = htonl(pCfg->dnode);
+  pCfg->vnode = htonl(pCfg->vnode);
+  pCfg->sid   = htonl(pCfg->sid);
+  mTrace("dnode:%s, vnode:%d, sid:%d, receive table config msg", taosIpStr(pCfg->dnode), pCfg->vnode, pCfg->sid);
+
+  STableInfo *pTable = mgmtGetTableByPos(pCfg->dnode, pCfg->vnode, pCfg->sid);
+  if (pTable == NULL) {
+    mError("dnode:%s, vnode:%d, sid:%d, table not found", taosIpStr(pCfg->dnode), pCfg->vnode, pCfg->sid);
+    mgmtSendSimpleResp(rpcMsg->handle, TSDB_CODE_NOT_ACTIVE_TABLE);
+    return;
+  }
+
+  mgmtSendSimpleResp(rpcMsg->handle, TSDB_CODE_SUCCESS);
+
+  SMDCreateTableMsg *pMDCreate = NULL;
+  pMDCreate = mgmtBuildCreateChildTableMsg(NULL, (SChildTableObj *) pTable);
+  if (pMDCreate == NULL) {
+    return;
+  }
+
+  SRpcIpSet ipSet = mgmtGetIpSetFromIp(pCfg->dnode);
+  SRpcMsg rpcRsp = {
+      .handle  = NULL,
+      .pCont   = pMDCreate,
+      .contLen = htonl(pMDCreate->contLen),
+      .code    = 0,
+      .msgType = TSDB_MSG_TYPE_MD_CREATE_TABLE
+  };
+  mgmtSendMsgToDnode(&ipSet, &rpcRsp);
+}
+
+static void mgmtProcessDropTableRsp(SRpcMsg *rpcMsg) {
+  if (rpcMsg->handle == NULL) return;
+
+  SQueuedMsg *queueMsg = rpcMsg->handle;
+  queueMsg->received++;
+
+  SChildTableObj *pTable = queueMsg->ahandle;
+  mTrace("table:%s, drop table rsp received, thandle:%p result:%s", pTable->info.tableId, queueMsg->thandle, tstrerror(rpcMsg->code));
+
+  if (rpcMsg->code != TSDB_CODE_SUCCESS) {
+    mError("table:%s, failed to drop in dnode, reason:%s", pTable->info.tableId, tstrerror(rpcMsg->code));
+    mgmtSendSimpleResp(queueMsg->thandle, rpcMsg->code);
+    free(queueMsg);
+    return;
+  }
+
+  SVgObj *pVgroup = mgmtGetVgroup(pTable->vgId);
+  if (pVgroup == NULL) {
+    mError("table:%s, failed to get vgroup", pTable->info.tableId);
+    mgmtSendSimpleResp(queueMsg->thandle, TSDB_CODE_INVALID_VGROUP_ID);
+    free(queueMsg);
+    return;
+  }
+  
+  SSdbOperDesc oper = {
+    .type = SDB_OPER_TYPE_GLOBAL,
+    .table = tsChildTableSdb,
+    .pObj = pTable
+  };
+  int32_t code = sdbDeleteRow(&oper);
+  if (code != TSDB_CODE_SUCCESS) {
+    mError("table:%s, update ctables sdb error", pTable->info.tableId);
+    mgmtSendSimpleResp(queueMsg->thandle, TSDB_CODE_SDB_ERROR);
+    free(queueMsg);
+    return;
+  }
+
+  if (pVgroup->numOfTables <= 0) {
+    mPrint("vgroup:%d, all tables is dropped, drop vgroup", pVgroup->vgId);
+    mgmtDropVgroup(pVgroup, NULL);
+  }
+
+  mgmtSendSimpleResp(queueMsg->thandle, TSDB_CODE_SUCCESS);
+  free(queueMsg);
+}
+
+static void mgmtProcessCreateTableRsp(SRpcMsg *rpcMsg) {
+  if (rpcMsg->handle == NULL) return;
+
+  SQueuedMsg *queueMsg = rpcMsg->handle;
+  queueMsg->received++;
+
+  SChildTableObj *pTable = queueMsg->ahandle;
+  mTrace("table:%s, create table rsp received, thandle:%p ahandle:%p result:%s", pTable->info.tableId, queueMsg->thandle,
+         rpcMsg->handle, tstrerror(rpcMsg->code));
+
+  if (rpcMsg->code != TSDB_CODE_SUCCESS) {
+    SSdbOperDesc oper = {
+      .type = SDB_OPER_TYPE_GLOBAL,
+      .table = tsChildTableSdb,
+      .pObj = pTable
+    };
+    sdbDeleteRow(&oper);
+    
+    mError("table:%s, failed to create in dnode, reason:%s", pTable->info.tableId, tstrerror(rpcMsg->code));
+    mgmtSendSimpleResp(queueMsg->thandle, rpcMsg->code);
+  } else {
+    mTrace("table:%s, created in dnode", pTable->info.tableId);
+    if (queueMsg->msgType != TSDB_MSG_TYPE_CM_CREATE_TABLE) {
+      SQueuedMsg *newMsg = calloc(1, sizeof(SQueuedMsg));
+      newMsg->msgType = queueMsg->msgType;
+      newMsg->thandle = queueMsg->thandle;
+      newMsg->pDb     = queueMsg->pDb;
+      newMsg->pUser   = queueMsg->pUser;
+      newMsg->contLen = queueMsg->contLen;
+      newMsg->pCont   = rpcMallocCont(newMsg->contLen);
+      memcpy(newMsg->pCont, queueMsg->pCont, newMsg->contLen);
+      mTrace("table:%s, start to get meta", pTable->info.tableId);
+      mgmtAddToShellQueue(newMsg);
+    } else {
+      mgmtSendSimpleResp(queueMsg->thandle, rpcMsg->code);
+    }
+  }
+
+  free(queueMsg);
+}
+
+static void mgmtProcessAlterTableRsp(SRpcMsg *rpcMsg) {
+  mTrace("alter table rsp received, handle:%p code:%d", rpcMsg->handle, rpcMsg->code);
+}
+
+static void mgmtProcessMultiTableMetaMsg(SQueuedMsg *pMsg) {
+  SRpcConnInfo connInfo;
+  if (rpcGetConnInfo(pMsg->thandle, &connInfo) != 0) {
+    mError("conn:%p is already released while get mulit table meta", pMsg->thandle);
+    return;
+  }
+
+  bool usePublicIp = (connInfo.serverIp == tsPublicIpInt);
+  SUserObj *pUser = mgmtGetUser(connInfo.user);
+  if (pUser == NULL) {
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_INVALID_USER);
+    return;
+  }
+
+  SCMMultiTableInfoMsg *pInfo = pMsg->pCont;
+  pInfo->numOfTables = htonl(pInfo->numOfTables);
+
+  int32_t totalMallocLen = 4*1024*1024; // first malloc 4 MB, subsequent reallocation as twice
+  SMultiTableMeta *pMultiMeta = rpcMallocCont(totalMallocLen);
+  if (pMultiMeta == NULL) {
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_SERV_OUT_OF_MEMORY);
+    return;
+  }
+
+  pMultiMeta->contLen = sizeof(SMultiTableMeta);
+  pMultiMeta->numOfTables = 0;
+
+  for (int t = 0; t < pInfo->numOfTables; ++t) {
+    char *tableId = (char*)(pInfo->tableIds + t * TSDB_TABLE_ID_LEN);
+    SChildTableObj *pTable = mgmtGetChildTable(tableId);
+    if (pTable == NULL) continue;
+
+    SDbObj *pDb = mgmtGetDbByTableId(tableId);
+    if (pDb == NULL) continue;
+
+    int availLen = totalMallocLen - pMultiMeta->contLen;
+    if (availLen <= sizeof(STableMetaMsg) + sizeof(SSchema) * TSDB_MAX_COLUMNS) {
+      //TODO realloc
+      //totalMallocLen *= 2;
+      //pMultiMeta = rpcReMalloc(pMultiMeta, totalMallocLen);
+      //if (pMultiMeta == NULL) {
+      ///  rpcSendResponse(ahandle, TSDB_CODE_SERV_OUT_OF_MEMORY, NULL, 0);
+      //  return TSDB_CODE_SERV_OUT_OF_MEMORY;
+      //} else {
+      //  t--;
+      //  continue;
+      //}
+    }
+
+    STableMetaMsg *pMeta = (STableMetaMsg *)(pMultiMeta->metas + pMultiMeta->contLen);
+    int32_t code = mgmtDoGetChildTableMeta(pDb, pTable, pMeta, usePublicIp);
+    if (code == TSDB_CODE_SUCCESS) {
+      pMultiMeta->numOfTables ++;
+      pMultiMeta->contLen += pMeta->contLen;
+    }
+  }
+
+  SRpcMsg rpcRsp = {0};
+  rpcRsp.handle = pMsg->thandle;
+  rpcRsp.pCont = pMultiMeta;
+  rpcRsp.contLen = pMultiMeta->contLen;
+  rpcSendResponse(&rpcRsp);
+}
+
+static int32_t mgmtGetShowTableMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn) {
+  SDbObj *pDb = mgmtGetDb(pShow->db);
+  if (pDb == NULL) {
+    return TSDB_CODE_DB_NOT_SELECTED;
+  }
+
+  int32_t cols = 0;
+  SSchema *pSchema = pMeta->schema;
+
+  pShow->bytes[cols] = TSDB_TABLE_NAME_LEN;
+  pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
+  strcpy(pSchema[cols].name, "table name");
+  pSchema[cols].bytes = htons(pShow->bytes[cols]);
+  cols++;
+
+  pShow->bytes[cols] = 8;
+  pSchema[cols].type = TSDB_DATA_TYPE_TIMESTAMP;
+  strcpy(pSchema[cols].name, "create time");
+  pSchema[cols].bytes = htons(pShow->bytes[cols]);
+  cols++;
+
+  pShow->bytes[cols] = 2;
+  pSchema[cols].type = TSDB_DATA_TYPE_SMALLINT;
+  strcpy(pSchema[cols].name, "columns");
+  pSchema[cols].bytes = htons(pShow->bytes[cols]);
+  cols++;
+
+  pShow->bytes[cols] = TSDB_TABLE_NAME_LEN;
+  pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
+  strcpy(pSchema[cols].name, "stable name");
+  pSchema[cols].bytes = htons(pShow->bytes[cols]);
+  cols++;
+
+  pMeta->numOfColumns = htons(cols);
+  pShow->numOfColumns = cols;
+
+  pShow->offset[0] = 0;
+  for (int32_t i = 1; i < cols; ++i) {
+    pShow->offset[i] = pShow->offset[i - 1] + pShow->bytes[i - 1];
+  }
+
+  pShow->numOfRows = pDb->numOfTables;
+  pShow->rowSize   = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
+
+  return 0;
+}
+
+static void mgmtVacuumResult(char *data, int32_t numOfCols, int32_t rows, int32_t capacity, SShowObj *pShow) {
+  if (rows < capacity) {
+    for (int32_t i = 0; i < numOfCols; ++i) {
+      memmove(data + pShow->offset[i] * rows, data + pShow->offset[i] * capacity, pShow->bytes[i] * rows);
+    }
+  }
+}
+
+static int32_t mgmtRetrieveShowTables(SShowObj *pShow, char *data, int32_t rows, void *pConn) {
+  SDbObj *pDb = mgmtGetDb(pShow->db);
+  if (pDb == NULL) return 0;
+
+  SUserObj *pUser = mgmtGetUserFromConn(pConn, NULL);
+  if (pUser == NULL) return 0;
+
+  if (mgmtCheckIsMonitorDB(pDb->name, tsMonitorDbName)) {
+    if (strcmp(pUser->user, "root") != 0 && strcmp(pUser->user, "_root") != 0 &&
+        strcmp(pUser->user, "monitor") != 0) {
+      return 0;
+    }
+  }
+
+  int32_t numOfRows  = 0;
+  SChildTableObj *pTable = NULL;
+  SPatternCompareInfo info = PATTERN_COMPARE_INFO_INITIALIZER;
+
+  char prefix[64] = {0};
+  strcpy(prefix, pDb->name);
+  strcat(prefix, TS_PATH_DELIMITER);
+  int32_t prefixLen = strlen(prefix);
+
+  while (numOfRows < rows) {
+    pShow->pNode = sdbFetchRow(tsChildTableSdb, pShow->pNode, (void **) &pTable);
+    if (pTable == NULL) break;
+
+    // not belong to current db
+    if (strncmp(pTable->info.tableId, prefix, prefixLen)) {
+      continue;
+    }
+
+    char tableName[TSDB_TABLE_NAME_LEN] = {0};
+    memset(tableName, 0, tListLen(tableName));
+    
+    // pattern compare for meter name
+    mgmtExtractTableName(pTable->info.tableId, tableName);
+
+    if (pShow->payloadLen > 0 &&
+        patternMatch(pShow->payload, tableName, TSDB_TABLE_NAME_LEN, &info) != TSDB_PATTERN_MATCH) {
+      continue;
+    }
+
+    int32_t cols = 0;
+
+    char *pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    strncpy(pWrite, tableName, TSDB_TABLE_NAME_LEN);
+    cols++;
+
+    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    *(int64_t *) pWrite = pTable->createdTime;
+    cols++;
+
+    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    if (pTable->info.type == TSDB_CHILD_TABLE) {
+      *(int16_t *)pWrite = pTable->superTable->numOfColumns;
+    } else {
+      *(int16_t *)pWrite = pTable->numOfColumns;
+    }
+
+    cols++;
+
+    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    if (pTable->info.type == TSDB_CHILD_TABLE) {
+      mgmtExtractTableName(pTable->superTableId, pWrite);
+    }
+    cols++;
+
+    numOfRows++;
+  }
+
+  pShow->numOfReads += numOfRows;
+  const int32_t NUM_OF_COLUMNS = 4;
+
+  mgmtVacuumResult(data, NUM_OF_COLUMNS, numOfRows, rows, pShow);
+
+  return numOfRows;
+}
+
+void mgmtAlterChildTable(SQueuedMsg *pMsg, SChildTableObj *pTable) {
+  int32_t code = TSDB_CODE_OPS_NOT_SUPPORT;
+  SCMAlterTableMsg *pAlter = pMsg->pCont;;
+
+  if (pAlter->type == TSDB_ALTER_TABLE_UPDATE_TAG_VAL) {
+    code = mgmtModifyChildTableTagValueByName(pTable, pAlter->schema[0].name, pAlter->tagVal);
+  } else if (pAlter->type == TSDB_ALTER_TABLE_ADD_COLUMN) {
+    code = mgmtAddNormalTableColumn(pTable, pAlter->schema, 1);
+  } else if (pAlter->type == TSDB_ALTER_TABLE_DROP_COLUMN) {
+    code = mgmtDropNormalTableColumnByName(pTable, pAlter->schema[0].name);
+  } else {
+  }
+
+  mgmtSendSimpleResp(pMsg->thandle, code);
 }
\ No newline at end of file

src/mnode/src/mgmtDb.c

@@ -28,7 +28,6 @@
 #include "mgmtGrant.h"
 #include "mgmtShell.h"
 #include "mgmtMnode.h"
-#include "mgmtNormalTable.h"
 #include "mgmtChildTable.h"
 #include "mgmtSdb.h"
 #include "mgmtSuperTable.h"
@@ -42,7 +41,6 @@ static int32_t tsDbUpdateSize;
 static int32_t mgmtCreateDb(SAcctObj *pAcct, SCMCreateDbMsg *pCreate);
 static void    mgmtDropDb(void *handle, void *tmrId);
 static int32_t mgmtSetDbDirty(SDbObj *pDb);
-
 static int32_t mgmtGetDbMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn);
 static int32_t mgmtRetrieveDbs(SShowObj *pShow, char *data, int32_t rows, void *pConn);
 static void    mgmtProcessCreateDbMsg(SQueuedMsg *pMsg);
@@ -82,7 +80,6 @@ static int32_t mgmtDbActionDelete(SSdbOperDesc *pOper) {
   SAcctObj *pAcct = mgmtGetAcct(pDb->cfg.acct);
 
   mgmtRemoveDbFromAcct(pAcct, pDb);
-  mgmtDropAllNormalTables(pDb);
   mgmtDropAllChildTables(pDb);
   mgmtDropAllSuperTables(pDb);
   mgmtDropAllVgroups(pDb);
@@ -382,7 +379,7 @@ static int32_t mgmtGetDbMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn)
   int32_t cols = 0;
 
   SSchema *pSchema = pMeta->schema;
-  SUserObj *pUser = mgmtGetUserFromConn(pConn);
+  SUserObj *pUser = mgmtGetUserFromConn(pConn, NULL);
   if (pUser == NULL) return 0;
 
   pShow->bytes[cols] = TSDB_DB_NAME_LEN;
@@ -532,7 +529,7 @@ static int32_t mgmtRetrieveDbs(SShowObj *pShow, char *data, int32_t rows, void *
   SDbObj *pDb = NULL;
   char *  pWrite;
   int32_t cols = 0;
-  SUserObj *pUser = mgmtGetUserFromConn(pConn);
+  SUserObj *pUser = mgmtGetUserFromConn(pConn, NULL);
   if (pUser == NULL) return 0;
 
   while (numOfRows < rows) {

src/mnode/src/mgmtDnode.c

@@ -76,7 +76,7 @@ bool mgmtCheckModuleInDnode(SDnodeObj *pDnode, int32_t moduleType) {
 int32_t mgmtGetModuleMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn) {
   int32_t cols = 0;
 
-  SUserObj *pUser = mgmtGetUserFromConn(pConn);
+  SUserObj *pUser = mgmtGetUserFromConn(pConn, NULL);
   if (pUser == NULL) return 0;
 
   if (strcmp(pUser->user, "root") != 0) return TSDB_CODE_NO_RIGHTS;
@@ -169,7 +169,7 @@ int32_t mgmtRetrieveModules(SShowObj *pShow, char *data, int32_t rows, void *pCo
 static int32_t mgmtGetConfigMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn) {
   int32_t cols = 0;
 
-  SUserObj *pUser = mgmtGetUserFromConn(pConn);
+  SUserObj *pUser = mgmtGetUserFromConn(pConn, NULL);
   if (pUser == NULL) return 0;
 
   if (strcmp(pUser->user, "root") != 0) return TSDB_CODE_NO_RIGHTS;
@@ -256,7 +256,7 @@ static int32_t mgmtRetrieveConfigs(SShowObj *pShow, char *data, int32_t rows, vo
 
 static int32_t mgmtGetVnodeMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn) {
   int32_t cols = 0;
-  SUserObj *pUser = mgmtGetUserFromConn(pConn);
+  SUserObj *pUser = mgmtGetUserFromConn(pConn, NULL);
   if (pUser == NULL) return 0;
   if (strcmp(pUser->user, "root") != 0) return TSDB_CODE_NO_RIGHTS;
 

src/mnode/src/mgmtMnode.c

@@ -118,7 +118,7 @@ static void *mgmtGetNextMnode(SShowObj *pShow, SMnodeObj **pMnode) {
 static int32_t mgmtGetMnodeMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn) {
   int32_t cols = 0;
 
-  SUserObj *pUser = mgmtGetUserFromConn(pConn);
+  SUserObj *pUser = mgmtGetUserFromConn(pConn, NULL);
   if (pUser == NULL) return 0;
 
   if (strcmp(pUser->user, "root") != 0) return TSDB_CODE_NO_RIGHTS;

src/mnode/src/mgmtNormalTable.c

-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#define _DEFAULT_SOURCE
-#include "os.h"
-#include "taosmsg.h"
-#include "tscompression.h"
-#include "tskiplist.h"
-#include "ttime.h"
-#include "tstatus.h"
-#include "tutil.h"
-#include "mnode.h"
-#include "mgmtAcct.h"
-#include "mgmtDb.h"
-#include "mgmtDClient.h"
-#include "mgmtGrant.h"
-#include "mgmtMnode.h"
-#include "mgmtNormalTable.h"
-#include "mgmtSdb.h"
-#include "mgmtSuperTable.h"
-#include "mgmtTable.h"
-#include "mgmtVgroup.h"
-
-void   *tsNormalTableSdb;
-int32_t tsNormalTableUpdateSize;
-
-static void mgmtDestroyNormalTable(SNormalTableObj *pTable) {
-  tfree(pTable->schema);
-  tfree(pTable->sql);
-  tfree(pTable);
-}
-
-static int32_t mgmtNormalTableActionDestroy(SSdbOperDesc *pOper) {
-  mgmtDestroyNormalTable(pOper->pObj);
-  return TSDB_CODE_SUCCESS;
-}
-
-static int32_t mgmtNormalTableActionInsert(SSdbOperDesc *pOper) {
-  SNormalTableObj *pTable = pOper->pObj;
-
-  SVgObj *pVgroup = mgmtGetVgroup(pTable->vgId);
-  if (pVgroup == NULL) {
-    mError("ntable:%s not in vgroup:%d", pTable->tableId, pTable->vgId);
-    return TSDB_CODE_INVALID_VGROUP_ID;
-  }
-
-  SDbObj *pDb = mgmtGetDb(pVgroup->dbName);
-  if (pDb == NULL) {
-    mError("ntable:%s, vgroup:%d not in DB:%s", pTable->tableId, pVgroup->vgId, pVgroup->dbName);
-    return TSDB_CODE_INVALID_DB;
-  }
-
-  SAcctObj *pAcct = mgmtGetAcct(pDb->cfg.acct);
-  if (pAcct == NULL) {
-    mError("ntable:%s, account:%s not exists", pTable->tableId, pDb->cfg.acct);
-    return TSDB_CODE_INVALID_ACCT;
-  }
-
-  mgmtAddTimeSeries(pAcct, pTable->numOfColumns - 1);
-  mgmtAddTableIntoDb(pDb);
-  mgmtAddTableIntoVgroup(pVgroup, (STableInfo *) pTable);
-
-  return TSDB_CODE_SUCCESS;
-}
-
-static int32_t mgmtNormalTableActionDelete(SSdbOperDesc *pOper) {
-  SNormalTableObj *pTable = pOper->pObj;
-  if (pTable->vgId == 0) {
-    return TSDB_CODE_INVALID_VGROUP_ID;
-  }
-
-  SVgObj *pVgroup = mgmtGetVgroup(pTable->vgId);
-  if (pVgroup == NULL) {
-    return TSDB_CODE_INVALID_VGROUP_ID;
-  }
-
-  SDbObj *pDb = mgmtGetDb(pVgroup->dbName);
-  if (pDb == NULL) {
-    mError("ntable:%s, vgroup:%d not in DB:%s", pTable->tableId, pVgroup->vgId, pVgroup->dbName);
-    return TSDB_CODE_INVALID_DB;
-  }
-
-  SAcctObj *pAcct = mgmtGetAcct(pDb->cfg.acct);
-  if (pAcct == NULL) {
-    mError("account not exists");
-    return TSDB_CODE_INVALID_ACCT;
-  }
-
-  mgmtRestoreTimeSeries(pAcct, pTable->numOfColumns - 1);
-  mgmtRemoveTableFromDb(pDb);
-  mgmtRemoveTableFromVgroup(pVgroup, (STableInfo *) pTable);
-
-  return TSDB_CODE_SUCCESS;
-}
-
-static int32_t mgmtNormalTableActionUpdate(SSdbOperDesc *pOper) {
-  return TSDB_CODE_SUCCESS;
-}
-
-static int32_t mgmtNormalTableActionEncode(SSdbOperDesc *pOper) {
-  SNormalTableObj *pTable = pOper->pObj;
-  assert(pOper->pObj != NULL && pOper->rowData != NULL);
-
-  int32_t schemaSize = pTable->numOfColumns * sizeof(SSchema);
-  if (pOper->maxRowSize < tsNormalTableUpdateSize + schemaSize) {
-    return TSDB_CODE_INVALID_MSG_LEN;
-  }
-
-  memcpy(pOper->rowData, pTable, tsNormalTableUpdateSize);
-  memcpy(pOper->rowData + tsNormalTableUpdateSize, pTable->schema, schemaSize);
-  memcpy(pOper->rowData + tsNormalTableUpdateSize + schemaSize, pTable->sql, pTable->sqlLen);
-
-  pOper->rowSize = tsNormalTableUpdateSize + schemaSize + pTable->sqlLen;
-  return TSDB_CODE_SUCCESS;
-}
-
-static int32_t mgmtNormalTableActionDecode(SSdbOperDesc *pOper) {
-  assert(pOper->rowData != NULL);
-
-  SNormalTableObj *pTable = (SNormalTableObj *)calloc(1, sizeof(SNormalTableObj));
-  if (pTable == NULL) TSDB_CODE_SERV_OUT_OF_MEMORY;
-
-  memcpy(pTable, pOper->rowData, tsNormalTableUpdateSize);
-
-  int32_t schemaSize = pTable->numOfColumns * sizeof(SSchema);
-  pTable->schema = (SSchema *)malloc(schemaSize);
-  if (pTable->schema == NULL) {
-    mgmtDestroyNormalTable(pTable);
-    return -1;
-  }
-
-  memcpy(pTable->schema, pOper->rowData + tsNormalTableUpdateSize, schemaSize);
-
-  pTable->sql = (char *)malloc(pTable->sqlLen);
-  if (pTable->sql == NULL) {
-    mgmtDestroyNormalTable(pTable);
-    return -1;
-  }
-  memcpy(pTable->sql, pOper->rowData + tsNormalTableUpdateSize + schemaSize, pTable->sqlLen);
-  
-  pOper->pObj = pTable;
-  return TSDB_CODE_SUCCESS;
-}
-
-int32_t mgmtInitNormalTables() {
-  void *pNode = NULL;
-  void *pLastNode = NULL;
-  SNormalTableObj *pTable = NULL;
-
-  SNormalTableObj tObj;
-  tsNormalTableUpdateSize = (int8_t *)tObj.updateEnd - (int8_t *)&tObj;
-
-  SSdbTableDesc tableDesc = {
-    .tableName    = "ntables",
-    .hashSessions = TSDB_MAX_NORMAL_TABLES,
-    .maxRowSize   = sizeof(SNormalTableObj) + sizeof(SSchema) * TSDB_MAX_COLUMNS,
-    .keyType      = SDB_KEY_TYPE_STRING,
-    .insertFp     = mgmtNormalTableActionInsert,
-    .deleteFp     = mgmtNormalTableActionDelete,
-    .updateFp     = mgmtNormalTableActionUpdate,
-    .encodeFp     = mgmtNormalTableActionEncode,
-    .decodeFp     = mgmtNormalTableActionDecode,
-    .destroyFp    = mgmtNormalTableActionDestroy,
-  };
-
-  tsNormalTableSdb = sdbOpenTable(&tableDesc);
-  if (tsNormalTableSdb == NULL) {
-    mError("failed to init ntables data");
-    return -1;
-  }
-
-  while (1) {
-    pLastNode = pNode;
-    pNode = sdbFetchRow(tsNormalTableSdb, pNode, (void **)&pTable);
-    if (pTable == NULL) break;
-
-    SDbObj *pDb = mgmtGetDbByTableId(pTable->tableId);
-    if (pDb == NULL) {
-      mError("ntable:%s, failed to get db, discard it", pTable->tableId);
-       SSdbOperDesc desc = {0};
-      desc.type = SDB_OPER_TYPE_LOCAL;
-      desc.pObj = pTable;
-      desc.table = tsNormalTableSdb;
-      sdbDeleteRow(&desc);
-      pNode = pLastNode;
-      continue;
-    }
-
-    SVgObj *pVgroup = mgmtGetVgroup(pTable->vgId);
-    if (pVgroup == NULL) {
-      mError("ntable:%s, failed to get vgroup:%d sid:%d, discard it", pTable->tableId, pTable->vgId, pTable->sid);
-      pTable->vgId = 0;
-      SSdbOperDesc desc = {0};
-      desc.type = SDB_OPER_TYPE_LOCAL;
-      desc.pObj = pTable;
-      desc.table = tsNormalTableSdb;
-      sdbDeleteRow(&desc);
-      pNode = pLastNode;
-      continue;
-    }
-
-    if (strcmp(pVgroup->dbName, pDb->name) != 0) {
-      mError("ntable:%s, db:%s not match with vgroup:%d db:%s sid:%d, discard it",
-               pTable->tableId, pDb->name, pTable->vgId, pVgroup->dbName, pTable->sid);
-      pTable->vgId = 0;
-      
-      SSdbOperDesc desc = {0};
-      desc.type = SDB_OPER_TYPE_LOCAL;
-      desc.pObj = pTable;
-      desc.table = tsNormalTableSdb;
-      sdbDeleteRow(&desc);
-      pNode = pLastNode;
-      continue;
-    }
-
-    if (pVgroup->tableList == NULL) {
-      mError("ntable:%s, vgroup:%d tableList is null", pTable->tableId, pTable->vgId);
-      pTable->vgId = 0;
-       SSdbOperDesc desc = {0};
-      desc.type = SDB_OPER_TYPE_LOCAL;
-      desc.pObj = pTable;
-      desc.table = tsNormalTableSdb;
-      sdbDeleteRow(&desc);
-      pNode = pLastNode;
-      continue;
-    }
-  }
-
-  mTrace("ntables is initialized");
-  return 0;
-}
-
-void mgmtCleanUpNormalTables() {
-  sdbCloseTable(tsNormalTableSdb);
-}
-
-void *mgmtBuildCreateNormalTableMsg(SNormalTableObj *pTable) {
-  int32_t totalCols = pTable->numOfColumns;
-  int32_t contLen   = sizeof(SMDCreateTableMsg) + totalCols * sizeof(SSchema) + pTable->sqlLen;
-
-  SMDCreateTableMsg *pCreate = rpcMallocCont(contLen);
-  if (pCreate == NULL) {
-    terrno = TSDB_CODE_SERV_OUT_OF_MEMORY;
-    return NULL;
-  }
-
-  memcpy(pCreate->tableId, pTable->tableId, TSDB_TABLE_ID_LEN + 1);
-  pCreate->contLen       = htonl(contLen);
-  pCreate->vgId          = htonl(pTable->vgId);
-  pCreate->tableType     = pTable->type;
-  pCreate->numOfColumns  = htons(pTable->numOfColumns);
-  pCreate->numOfTags     = 0;
-  pCreate->sid           = htonl(pTable->sid);
-  pCreate->sversion      = htonl(pTable->sversion);
-  pCreate->tagDataLen    = 0;
-  pCreate->sqlDataLen    = htonl(pTable->sqlLen);
-  pCreate->uid           = htobe64(pTable->uid);
-  pCreate->superTableUid = 0;
-  pCreate->createdTime   = htobe64(pTable->createdTime);
-
-  SSchema *pSchema = (SSchema *) pCreate->data;
-  memcpy(pSchema, pTable->schema, totalCols * sizeof(SSchema));
-  for (int32_t col = 0; col < totalCols; ++col) {
-    pSchema->bytes = htons(pSchema->bytes);
-    pSchema->colId = htons(pSchema->colId);
-    pSchema++;
-  }
-
-  memcpy(pCreate + sizeof(SMDCreateTableMsg) + totalCols * sizeof(SSchema), pTable->sql, pTable->sqlLen);
-  return pCreate;
-}
-
-void *mgmtCreateNormalTable(SCMCreateTableMsg *pCreate, SVgObj *pVgroup, int32_t sid) {
-  SNormalTableObj *pTable = (SNormalTableObj *) calloc(sizeof(SNormalTableObj), 1);
-  if (pTable == NULL) {
-    mError("table:%s, failed to alloc memory", pCreate->tableId);
-    terrno = TSDB_CODE_SERV_OUT_OF_MEMORY;
-    return NULL;
-  }
-
-  strcpy(pTable->tableId, pCreate->tableId);
-  pTable->type         = TSDB_NORMAL_TABLE;
-  pTable->vgId         = pVgroup->vgId;
-  pTable->createdTime  = taosGetTimestampMs();
-  pTable->uid          = (((uint64_t) pTable->createdTime) << 16) + (sdbGetVersion() & ((1ul << 16) - 1ul));
-  pTable->sid          = sid;
-  pTable->sversion     = 0;
-  pTable->numOfColumns = htons(pCreate->numOfColumns);
-  pTable->sqlLen       = htons(pCreate->sqlLen);
-
-  int32_t numOfCols  = pTable->numOfColumns;
-  int32_t schemaSize = numOfCols * sizeof(SSchema);
-  pTable->schema     = (SSchema *) calloc(1, schemaSize);
-  if (pTable->schema == NULL) {
-    free(pTable);
-    terrno = TSDB_CODE_SERV_OUT_OF_MEMORY;
-    return NULL;
-  }
-  memcpy(pTable->schema, pCreate->schema, numOfCols * sizeof(SSchema));
-
-  pTable->nextColId = 0;
-  for (int32_t col = 0; col < numOfCols; col++) {
-    SSchema *tschema   = pTable->schema;
-    tschema[col].colId = pTable->nextColId++;
-    tschema[col].bytes = htons(tschema[col].bytes);
-  }
-
-  if (pTable->sqlLen != 0) {
-    pTable->type = TSDB_STREAM_TABLE;
-    pTable->sql = calloc(1, pTable->sqlLen);
-    if (pTable->sql == NULL) {
-      free(pTable);
-      terrno = TSDB_CODE_SERV_OUT_OF_MEMORY;
-      return NULL;
-    }
-    memcpy(pTable->sql, (char *) (pCreate->schema) + numOfCols * sizeof(SSchema), pTable->sqlLen);
-    pTable->sql[pTable->sqlLen - 1] = 0;
-    mTrace("table:%s, stream sql len:%d sql:%s", pTable->tableId, pTable->sqlLen, pTable->sql);
-  }
-
-  SSdbOperDesc desc = {0};
-  desc.type = SDB_OPER_TYPE_GLOBAL;
-  desc.pObj = pTable;
-  desc.table = tsNormalTableSdb;
-  if (sdbInsertRow(&desc) < 0) {
-    mError("table:%s, update sdb error", pTable->tableId);
-    free(pTable);
-    terrno = TSDB_CODE_SDB_ERROR;
-    return NULL;
-  }
-
-  mTrace("table:%s, create ntable in vgroup, uid:%" PRIu64 , pTable->tableId, pTable->uid);
-  return pTable;
-}
-
-int32_t mgmtDropNormalTable(SQueuedMsg *newMsg, SNormalTableObj *pTable) {
-  SVgObj *pVgroup = mgmtGetVgroup(pTable->vgId);
-  if (pVgroup == NULL) {
-    mError("table:%s, failed to drop normal table, vgroup not exist", pTable->tableId);
-    return TSDB_CODE_OTHERS;
-  }
-
-  SMDDropTableMsg *pDrop = rpcMallocCont(sizeof(SMDDropTableMsg));
-  if (pDrop == NULL) {
-    mError("table:%s, failed to drop normal table, no enough memory", pTable->tableId);
-    return TSDB_CODE_SERV_OUT_OF_MEMORY;
-  }
-
-  strcpy(pDrop->tableId, pTable->tableId);
-  pDrop->contLen = htonl(sizeof(SMDDropTableMsg));
-  pDrop->vgId    = htonl(pVgroup->vgId);
-  pDrop->sid     = htonl(pTable->sid);
-  pDrop->uid     = htobe64(pTable->uid);
-
-  SRpcIpSet ipSet = mgmtGetIpSetFromVgroup(pVgroup);
-  mTrace("table:%s, send drop table msg", pDrop->tableId);
-  SRpcMsg rpcMsg = {
-      .handle  = newMsg,
-      .pCont   = pDrop,
-      .contLen = sizeof(SMDDropTableMsg),
-      .code    = 0,
-      .msgType = TSDB_MSG_TYPE_MD_DROP_TABLE
-  };
-
-  newMsg->ahandle = pTable;
-  mgmtSendMsgToDnode(&ipSet, &rpcMsg);
-  return TSDB_CODE_SUCCESS;
-}
-
-void* mgmtGetNormalTable(char *tableId) {
-  return sdbGetRow(tsNormalTableSdb, tableId);
-}
-
-static int32_t mgmtFindNormalTableColumnIndex(SNormalTableObj *pTable, char *colName) {
-  SSchema *schema = (SSchema *) pTable->schema;
-  for (int32_t i = 0; i < pTable->numOfColumns; i++) {
-    if (strcasecmp(schema[i].name, colName) == 0) {
-      return i;
-    }
-  }
-
-  return -1;
-}
-
-int32_t mgmtAddNormalTableColumn(SNormalTableObj *pTable, SSchema schema[], int32_t ncols) {
-  if (ncols <= 0) {
-    return TSDB_CODE_APP_ERROR;
-  }
-
-  for (int32_t i = 0; i < ncols; i++) {
-    if (mgmtFindNormalTableColumnIndex(pTable, schema[i].name) > 0) {
-      return TSDB_CODE_APP_ERROR;
-    }
-  }
-
-  SDbObj *pDb = mgmtGetDbByTableId(pTable->tableId);
-  if (pDb == NULL) {
-    mError("table: %s not belongs to any database", pTable->tableId);
-    return TSDB_CODE_APP_ERROR;
-  }
-
-  SAcctObj *pAcct = mgmtGetAcct(pDb->cfg.acct);
-  if (pAcct == NULL) {
-    mError("DB: %s not belongs to andy account", pDb->name);
-    return TSDB_CODE_APP_ERROR;
-  }
-
-  int32_t schemaSize = pTable->numOfColumns * sizeof(SSchema);
-  pTable->schema = realloc(pTable->schema, schemaSize + sizeof(SSchema) * ncols);
-
-  memcpy(pTable->schema + schemaSize, schema, sizeof(SSchema) * ncols);
-
-  SSchema *tschema = (SSchema *) (pTable->schema + sizeof(SSchema) * pTable->numOfColumns);
-  for (int32_t i = 0; i < ncols; i++) {
-    tschema[i].colId = pTable->nextColId++;
-  }
-
-  pTable->numOfColumns += ncols;
-  pTable->sversion++;
-  pAcct->acctInfo.numOfTimeSeries += ncols;
-
-  SSdbOperDesc desc = {0};
-  desc.type = SDB_OPER_TYPE_GLOBAL;
-  desc.pObj = pTable;
-  desc.table = tsNormalTableSdb;
-  desc.rowData = pTable;
-  desc.rowSize = tsNormalTableUpdateSize;
-  sdbUpdateRow(&desc);
-
-  return TSDB_CODE_SUCCESS;
-}
-
-int32_t mgmtDropNormalTableColumnByName(SNormalTableObj *pTable, char *colName) {
-  int32_t col = mgmtFindNormalTableColumnIndex(pTable, colName);
-  if (col < 0) {
-    return TSDB_CODE_APP_ERROR;
-  }
-
-  SDbObj *pDb = mgmtGetDbByTableId(pTable->tableId);
-  if (pDb == NULL) {
-    mError("table: %s not belongs to any database", pTable->tableId);
-    return TSDB_CODE_APP_ERROR;
-  }
-
-  SAcctObj *pAcct = mgmtGetAcct(pDb->cfg.acct);
-  if (pAcct == NULL) {
-    mError("DB: %s not belongs to any account", pDb->name);
-    return TSDB_CODE_APP_ERROR;
-  }
-
-  memmove(pTable->schema + sizeof(SSchema) * col, pTable->schema + sizeof(SSchema) * (col + 1),
-          sizeof(SSchema) * (pTable->numOfColumns - col - 1));
-
-  pTable->numOfColumns--;
-  pTable->sversion++;
-
-  pAcct->acctInfo.numOfTimeSeries--;
-
-  SSdbOperDesc desc = {0};
-  desc.type = SDB_OPER_TYPE_GLOBAL;
-  desc.pObj = pTable;
-  desc.table = tsNormalTableSdb;
-  desc.rowData = pTable;
-  desc.rowSize = tsNormalTableUpdateSize;
-  sdbUpdateRow(&desc);
-
-  return TSDB_CODE_SUCCESS;
-}
-
-static int32_t mgmtSetSchemaFromNormalTable(SSchema *pSchema, SNormalTableObj *pTable) {
-  int32_t numOfCols = pTable->numOfColumns;
-  for (int32_t i = 0; i < numOfCols; ++i) {
-    strcpy(pSchema->name, pTable->schema[i].name);
-    pSchema->type  = pTable->schema[i].type;
-    pSchema->bytes = htons(pTable->schema[i].bytes);
-    pSchema->colId = htons(pTable->schema[i].colId);
-    pSchema++;
-  }
-
-  return numOfCols * sizeof(SSchema);
-}
-
-int32_t mgmtGetNormalTableMeta(SDbObj *pDb, SNormalTableObj *pTable, STableMetaMsg *pMeta, bool usePublicIp) {
-  pMeta->uid          = htobe64(pTable->uid);
-  pMeta->sid          = htonl(pTable->sid);
-  pMeta->vgId         = htonl(pTable->vgId);
-  pMeta->sversion     = htons(pTable->sversion);
-  pMeta->precision    = pDb->cfg.precision;
-  pMeta->numOfTags    = 0;
-  pMeta->numOfColumns = htons(pTable->numOfColumns);
-  pMeta->tableType    = pTable->type;
-  pMeta->contLen      = sizeof(STableMetaMsg) + mgmtSetSchemaFromNormalTable(pMeta->schema, pTable);
-  
-  strncpy(pMeta->tableId, pTable->tableId, tListLen(pTable->tableId));
-
-  SVgObj *pVgroup = mgmtGetVgroup(pTable->vgId);
-  if (pVgroup == NULL) {
-    return TSDB_CODE_INVALID_TABLE;
-  }
-  for (int32_t i = 0; i < TSDB_VNODES_SUPPORT; ++i) {
-    if (usePublicIp) {
-      pMeta->vpeerDesc[i].ip    = pVgroup->vnodeGid[i].publicIp;
-    } else {
-      pMeta->vpeerDesc[i].ip    = pVgroup->vnodeGid[i].privateIp;
-    }
-    
-    pMeta->vpeerDesc[i].vnode = htonl(pVgroup->vnodeGid[i].vnode);
-  }
-  pMeta->numOfVpeers = pVgroup->numOfVnodes;
-
-  return TSDB_CODE_SUCCESS;
-}
-
-void mgmtDropAllNormalTables(SDbObj *pDropDb) {
-  void *pNode = NULL;
-  void *pLastNode = NULL;
-  int32_t numOfTables = 0;
-  int32_t dbNameLen = strlen(pDropDb->name);
-  SNormalTableObj *pTable = NULL;
-
-  while (1) {
-    pNode = sdbFetchRow(tsNormalTableSdb, pNode, (void **)&pTable);
-    if (pTable == NULL) break;
-
-    if (strncmp(pDropDb->name, pTable->tableId, dbNameLen) == 0) {
-      SSdbOperDesc oper = {
-        .type = SDB_OPER_TYPE_LOCAL,
-        .table = tsNormalTableSdb,
-        .pObj = pTable,
-      };
-      sdbDeleteRow(&oper);
-      pNode = pLastNode;
-      numOfTables++;
-      continue;
-    }
-  }
-
-  mTrace("db:%s, all normal tables:%d is dropped from sdb", pDropDb->name, numOfTables);
-}

src/mnode/src/mgmtProfile.c

@@ -678,7 +678,7 @@ void mgmtProcessKillQueryMsg(SQueuedMsg *pMsg) {
   SRpcMsg rpcRsp = {.handle = pMsg->thandle, .pCont = NULL, .contLen = 0, .code = 0, .msgType = 0};
   if (mgmtCheckRedirect(pMsg->thandle)) return;
 
-  SUserObj *pUser = mgmtGetUserFromConn(pMsg->thandle);
+  SUserObj *pUser = mgmtGetUserFromConn(pMsg->thandle, NULL);
   if (pUser == NULL) {
     rpcRsp.code = TSDB_CODE_INVALID_USER;
     rpcSendResponse(&rpcRsp);
@@ -702,7 +702,7 @@ void mgmtProcessKillStreamMsg(SQueuedMsg *pMsg) {
   SRpcMsg rpcRsp = {.handle = pMsg->thandle, .pCont = NULL, .contLen = 0, .code = 0, .msgType = 0};
   if (mgmtCheckRedirect(pMsg->thandle)) return;
 
-  SUserObj *pUser = mgmtGetUserFromConn(pMsg->thandle);
+  SUserObj *pUser = mgmtGetUserFromConn(pMsg->thandle, NULL);
   if (pUser == NULL) {
     rpcRsp.code = TSDB_CODE_INVALID_USER;
     rpcSendResponse(&rpcRsp);
@@ -726,7 +726,7 @@ void mgmtProcessKillConnectionMsg(SQueuedMsg *pMsg) {
   SRpcMsg rpcRsp = {.handle = pMsg->thandle, .pCont = NULL, .contLen = 0, .code = 0, .msgType = 0};
   if (mgmtCheckRedirect(pMsg->thandle)) return;
 
-  SUserObj *pUser = mgmtGetUserFromConn(pMsg->thandle);
+  SUserObj *pUser = mgmtGetUserFromConn(pMsg->thandle, NULL);
   if (pUser == NULL) {
     rpcRsp.code = TSDB_CODE_INVALID_USER;
     rpcSendResponse(&rpcRsp);

src/mnode/src/mgmtShell.c

@@ -30,7 +30,6 @@
 #include "mgmtDnode.h"
 #include "mgmtGrant.h"
 #include "mgmtMnode.h"
-#include "mgmtNormalTable.h"
 #include "mgmtProfile.h"
 #include "mgmtSdb.h"
 #include "mgmtShell.h"
@@ -138,13 +137,19 @@ static void mgmtProcessMsgFromShell(SRpcMsg *rpcMsg) {
     return;
   }
 
+  if (mgmtCheckExpired()) {
+    mgmtSendSimpleResp(rpcMsg->handle, TSDB_CODE_GRANT_EXPIRED);
+    return;
+  }
+
   if (tsMgmtProcessShellMsgFp[rpcMsg->msgType] == NULL) {
     mgmtProcessUnSupportMsg(rpcMsg);
     rpcFreeCont(rpcMsg->pCont);
     return;
   }
 
-  SUserObj *pUser = mgmtGetUserFromConn(rpcMsg->handle);
+  bool usePublicIp = false;
+  SUserObj *pUser = mgmtGetUserFromConn(rpcMsg->handle, &usePublicIp);
   if (pUser == NULL) {
     mgmtSendSimpleResp(rpcMsg->handle, TSDB_CODE_INVALID_USER);
     rpcFreeCont(rpcMsg->pCont);
@@ -158,6 +163,7 @@ static void mgmtProcessMsgFromShell(SRpcMsg *rpcMsg) {
     queuedMsg.contLen = rpcMsg->contLen;
     queuedMsg.pCont   = rpcMsg->pCont;
     queuedMsg.pUser   = pUser;
+    queuedMsg.usePublicIp = usePublicIp;
     (*tsMgmtProcessShellMsgFp[rpcMsg->msgType])(&queuedMsg);
     rpcFreeCont(rpcMsg->pCont);
   } else {
@@ -167,6 +173,7 @@ static void mgmtProcessMsgFromShell(SRpcMsg *rpcMsg) {
     queuedMsg->contLen = rpcMsg->contLen;
     queuedMsg->pCont   = rpcMsg->pCont;
     queuedMsg->pUser   = pUser;
+    queuedMsg->usePublicIp = usePublicIp;
     mgmtAddToShellQueue(queuedMsg);
   }
 }
@@ -440,7 +447,7 @@ static bool mgmtCheckMeterMetaMsgType(void *pMsg) {
 
 static bool mgmtCheckMsgReadOnly(int8_t type, void *pCont) {
   if ((type == TSDB_MSG_TYPE_CM_TABLE_META && (!mgmtCheckMeterMetaMsgType(pCont)))  ||
-       type == TSDB_MSG_TYPE_CM_STABLE_META || type == TSDB_MSG_TYPE_RETRIEVE ||
+       type == TSDB_MSG_TYPE_CM_STABLE_VGROUP || type == TSDB_MSG_TYPE_RETRIEVE ||
        type == TSDB_MSG_TYPE_CM_SHOW || type == TSDB_MSG_TYPE_CM_TABLES_META      ||
        type == TSDB_MSG_TYPE_CM_CONNECT) {
     return true;

src/mnode/src/mgmtSuperTable.c

@@ -15,10 +15,12 @@
 
 #define _DEFAULT_SOURCE
 #include "os.h"
-
+#include "name.h"
+#include "tsqlfunction.h"
 #include "mgmtAcct.h"
 #include "mgmtChildTable.h"
 #include "mgmtDb.h"
+#include "mgmtDClient.h"
 #include "mgmtDnode.h"
 #include "mgmtGrant.h"
 #include "mgmtShell.h"
@@ -27,14 +29,11 @@
 #include "mgmtTable.h"
 #include "mgmtUser.h"
 #include "mgmtVgroup.h"
-#include "mnode.h"
-
-#include "name.h"
-#include "tsqlfunction.h"
 
 static void   *tsSuperTableSdb;
 static int32_t tsSuperTableUpdateSize;
-
+static void    mgmtProcessSuperTableVgroupMsg(SQueuedMsg *queueMsg);
+static void    mgmtProcessDropStableRsp(SRpcMsg *rpcMsg);
 static int32_t mgmtRetrieveShowSuperTables(SShowObj *pShow, char *data, int32_t rows, void *pConn);
 static int32_t mgmtGetShowSuperTableMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn);
 
@@ -49,8 +48,8 @@ static int32_t mgmtSuperTableActionDestroy(SSdbOperDesc *pOper) {
 }
 
 static int32_t mgmtSuperTableActionInsert(SSdbOperDesc *pOper) {
-  STableInfo *pStable = pOper->pObj;
-  SDbObj *pDb = mgmtGetDbByTableId(pStable->tableId);
+  SSuperTableObj *pStable = pOper->pObj;
+  SDbObj *pDb = mgmtGetDbByTableId(pStable->info.tableId);
   if (pDb != NULL) {
     mgmtAddSuperTableIntoDb(pDb);
   }
@@ -58,8 +57,8 @@ static int32_t mgmtSuperTableActionInsert(SSdbOperDesc *pOper) {
 }
 
 static int32_t mgmtSuperTableActionDelete(SSdbOperDesc *pOper) {
-  STableInfo *pStable = pOper->pObj;
-  SDbObj *pDb = mgmtGetDbByTableId(pStable->tableId);
+  SSuperTableObj *pStable = pOper->pObj;
+  SDbObj *pDb = mgmtGetDbByTableId(pStable->info.tableId);
   if (pDb != NULL) {
     mgmtRemoveSuperTableFromDb(pDb);
     mgmtDropAllChildTablesInStable((SSuperTableObj *)pStable);
@@ -132,8 +131,10 @@ int32_t mgmtInitSuperTables() {
     return -1;
   }
 
+  mgmtAddShellMsgHandle(TSDB_MSG_TYPE_CM_STABLE_VGROUP, mgmtProcessSuperTableVgroupMsg);
   mgmtAddShellShowMetaHandle(TSDB_MGMT_TABLE_METRIC, mgmtGetShowSuperTableMeta);
   mgmtAddShellShowRetrieveHandle(TSDB_MGMT_TABLE_METRIC, mgmtRetrieveShowSuperTables);
+  mgmtAddDClientRspHandle(TSDB_MSG_TYPE_MD_DROP_STABLE_RSP, mgmtProcessDropStableRsp);
 
   mTrace("stables is initialized");
   return 0;
@@ -143,17 +144,17 @@ void mgmtCleanUpSuperTables() {
   sdbCloseTable(tsSuperTableSdb);
 }
 
-int32_t mgmtCreateSuperTable(SCMCreateTableMsg *pCreate) {
+void mgmtCreateSuperTable(SQueuedMsg *pMsg) {
+  SCMCreateTableMsg *pCreate = pMsg->pCont;
   SSuperTableObj *pStable = (SSuperTableObj *)calloc(1, sizeof(SSuperTableObj));
   if (pStable == NULL) {
-    return TSDB_CODE_SERV_OUT_OF_MEMORY;
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_SERV_OUT_OF_MEMORY);
+    return;
   }
 
-  strcpy(pStable->tableId, pCreate->tableId);
-  pStable->type         = TSDB_SUPER_TABLE;
+  strcpy(pStable->info.tableId, pCreate->tableId);
+  pStable->info.type    = TSDB_SUPER_TABLE;
   pStable->createdTime  = taosGetTimestampMs();
-  pStable->vgId         = 0;
-  pStable->sid          = 0;
   pStable->uid          = (((uint64_t) pStable->createdTime) << 16) + (sdbGetVersion() & ((1ul << 16) - 1ul));
   pStable->sversion     = 0;
   pStable->numOfColumns = htons(pCreate->numOfColumns);
@@ -165,7 +166,8 @@ int32_t mgmtCreateSuperTable(SCMCreateTableMsg *pCreate) {
   if (pStable->schema == NULL) {
     free(pStable);
     mError("stable:%s, no schema input", pCreate->tableId);
-    return TSDB_CODE_INVALID_TABLE;
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_INVALID_TABLE);
+    return;
   }
   memcpy(pStable->schema, pCreate->schema, numOfCols * sizeof(SSchema));
 
@@ -186,17 +188,17 @@ int32_t mgmtCreateSuperTable(SCMCreateTableMsg *pCreate) {
   int32_t code = sdbInsertRow(&oper);
   if (code != TSDB_CODE_SUCCESS) {
     mgmtDestroySuperTable(pStable);
-    return TSDB_CODE_SDB_ERROR;
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_SDB_ERROR);
   } else {
-    mLPrint("stable:%s, is created, tags:%d cols:%d", pStable->tableId, pStable->numOfTags, pStable->numOfColumns);
-    return TSDB_CODE_SUCCESS;
+    mLPrint("stable:%s, is created, tags:%d cols:%d", pStable->info.tableId, pStable->numOfTags, pStable->numOfColumns);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_SUCCESS);
   }
 }
 
-int32_t mgmtDropSuperTable(SQueuedMsg *newMsg, SDbObj *pDb, SSuperTableObj *pStable) {
+void mgmtDropSuperTable(SQueuedMsg *pMsg, SSuperTableObj *pStable) {
   if (pStable->numOfTables != 0) {
-    mError("stable:%s, numOfTables:%d not 0", pStable->tableId, pStable->numOfTables);
-    return TSDB_CODE_OTHERS;
+    mError("stable:%s, numOfTables:%d not 0", pStable->info.tableId, pStable->numOfTables);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_OTHERS);
   } else {
     SSdbOperDesc oper = {
       .type = SDB_OPER_TYPE_GLOBAL,
@@ -204,8 +206,8 @@ int32_t mgmtDropSuperTable(SQueuedMsg *newMsg, SDbObj *pDb, SSuperTableObj *pSta
       .pObj = pStable
     };
     int32_t code = sdbDeleteRow(&oper);
-    mLPrint("stable:%s, is dropped from sdb, result:%s", pStable->tableId, tstrerror(code));
-    return code;
+    mLPrint("stable:%s, is dropped from sdb, result:%s", pStable->info.tableId, tstrerror(code));
+    mgmtSendSimpleResp(pMsg->thandle, code);
   }
 }
 
@@ -213,14 +215,14 @@ void* mgmtGetSuperTable(char *tableId) {
   return sdbGetRow(tsSuperTableSdb, tableId);
 }
 
-void *mgmtGetSuperTableVgroup(SSuperTableObj *pStable) {
+static void *mgmtGetSuperTableVgroup(SSuperTableObj *pStable) {
   SCMSuperTableInfoRsp *rsp = rpcMallocCont(sizeof(SCMSuperTableInfoRsp) + sizeof(uint32_t) * mgmtGetDnodesNum());
   rsp->numOfDnodes = htonl(1);
   rsp->dnodeIps[0] = htonl(inet_addr(tsPrivateIp));
   return rsp;
 }
 
-int32_t mgmtFindSuperTableTagIndex(SSuperTableObj *pStable, const char *tagName) {
+static int32_t mgmtFindSuperTableTagIndex(SSuperTableObj *pStable, const char *tagName) {
   for (int32_t i = 0; i < pStable->numOfTags; i++) {
     SSchema *schema = (SSchema *)(pStable->schema + (pStable->numOfColumns + i) * sizeof(SSchema));
     if (strcasecmp(tagName, schema->name) == 0) {
@@ -231,7 +233,7 @@ int32_t mgmtFindSuperTableTagIndex(SSuperTableObj *pStable, const char *tagName)
   return -1;
 }
 
-int32_t mgmtAddSuperTableTag(SSuperTableObj *pStable, SSchema schema[], int32_t ntags) {
+static int32_t mgmtAddSuperTableTag(SSuperTableObj *pStable, SSchema schema[], int32_t ntags) {
   if (pStable->numOfTags + ntags > TSDB_MAX_TAGS) {
     return TSDB_CODE_APP_ERROR;
   }
@@ -245,9 +247,9 @@ int32_t mgmtAddSuperTableTag(SSuperTableObj *pStable, SSchema schema[], int32_t
     }
   }
 
-  SDbObj *pDb = mgmtGetDbByTableId(pStable->tableId);
+  SDbObj *pDb = mgmtGetDbByTableId(pStable->info.tableId);
   if (pDb == NULL) {
-    mError("meter: %s not belongs to any database", pStable->tableId);
+    mError("meter: %s not belongs to any database", pStable->info.tableId);
     return TSDB_CODE_APP_ERROR;
   }
 
@@ -275,19 +277,19 @@ int32_t mgmtAddSuperTableTag(SSuperTableObj *pStable, SSchema schema[], int32_t
   pAcct->acctInfo.numOfTimeSeries += (ntags * pStable->numOfTables);
   // sdbUpdateRow(tsSuperTableSdb, pStable, tsSuperTableUpdateSize, SDB_OPER_GLOBAL);
 
-  mTrace("Succeed to add tag column %s to table %s", schema[0].name, pStable->tableId);
+  mTrace("Succeed to add tag column %s to table %s", schema[0].name, pStable->info.tableId);
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t mgmtDropSuperTableTag(SSuperTableObj *pStable, char *tagName) {
+static int32_t mgmtDropSuperTableTag(SSuperTableObj *pStable, char *tagName) {
   int32_t col = mgmtFindSuperTableTagIndex(pStable, tagName);
   if (col <= 0 || col >= pStable->numOfTags) {
     return TSDB_CODE_APP_ERROR;
   }
 
-  SDbObj *pDb = mgmtGetDbByTableId(pStable->tableId);
+  SDbObj *pDb = mgmtGetDbByTableId(pStable->info.tableId);
   if (pDb == NULL) {
-    mError("table: %s not belongs to any database", pStable->tableId);
+    mError("table: %s not belongs to any database", pStable->info.tableId);
     return TSDB_CODE_APP_ERROR;
   }
 
@@ -311,15 +313,15 @@ int32_t mgmtDropSuperTableTag(SSuperTableObj *pStable, char *tagName) {
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t mgmtModifySuperTableTagNameByName(SSuperTableObj *pStable, char *oldTagName, char *newTagName) {
+static int32_t mgmtModifySuperTableTagNameByName(SSuperTableObj *pStable, char *oldTagName, char *newTagName) {
   int32_t col = mgmtFindSuperTableTagIndex(pStable, oldTagName);
   if (col < 0) {
     // Tag name does not exist
-    mError("Failed to modify table %s tag column, oname: %s, nname: %s", pStable->tableId, oldTagName, newTagName);
+    mError("Failed to modify table %s tag column, oname: %s, nname: %s", pStable->info.tableId, oldTagName, newTagName);
     return TSDB_CODE_INVALID_MSG_TYPE;
   }
 
-  int32_t  rowSize = 0;
+  // int32_t  rowSize = 0;
   uint32_t len = strlen(newTagName);
 
   if (col >= pStable->numOfTags || len >= TSDB_COL_NAME_LEN || mgmtFindSuperTableTagIndex(pStable, newTagName) >= 0) {
@@ -343,11 +345,11 @@ int32_t mgmtModifySuperTableTagNameByName(SSuperTableObj *pStable, char *oldTagN
   tfree(msg);
 
   if (ret < 0) {
-    mError("Failed to modify table %s tag column", pStable->tableId);
+    mError("Failed to modify table %s tag column", pStable->info.tableId);
     return TSDB_CODE_APP_ERROR;
   }
 
-  mTrace("Succeed to modify table %s tag column", pStable->tableId);
+  mTrace("Succeed to modify table %s tag column", pStable->info.tableId);
   return TSDB_CODE_SUCCESS;
 }
 
@@ -362,7 +364,7 @@ static int32_t mgmtFindSuperTableColumnIndex(SSuperTableObj *pStable, char *colN
   return -1;
 }
 
-int32_t mgmtAddSuperTableColumn(SSuperTableObj *pStable, SSchema schema[], int32_t ncols) {
+static int32_t mgmtAddSuperTableColumn(SSuperTableObj *pStable, SSchema schema[], int32_t ncols) {
   if (ncols <= 0) {
     return TSDB_CODE_APP_ERROR;
   }
@@ -373,9 +375,9 @@ int32_t mgmtAddSuperTableColumn(SSuperTableObj *pStable, SSchema schema[], int32
     }
   }
 
-  SDbObj *pDb = mgmtGetDbByTableId(pStable->tableId);
+  SDbObj *pDb = mgmtGetDbByTableId(pStable->info.tableId);
   if (pDb == NULL) {
-    mError("meter: %s not belongs to any database", pStable->tableId);
+    mError("meter: %s not belongs to any database", pStable->info.tableId);
     return TSDB_CODE_APP_ERROR;
   }
 
@@ -406,15 +408,15 @@ int32_t mgmtAddSuperTableColumn(SSuperTableObj *pStable, SSchema schema[], int32
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t mgmtDropSuperTableColumnByName(SSuperTableObj *pStable, char *colName) {
+static int32_t mgmtDropSuperTableColumnByName(SSuperTableObj *pStable, char *colName) {
   int32_t col = mgmtFindSuperTableColumnIndex(pStable, colName);
   if (col < 0) {
     return TSDB_CODE_APP_ERROR;
   }
 
-  SDbObj *pDb = mgmtGetDbByTableId(pStable->tableId);
+  SDbObj *pDb = mgmtGetDbByTableId(pStable->info.tableId);
   if (pDb == NULL) {
-    mError("table: %s not belongs to any database", pStable->tableId);
+    mError("table: %s not belongs to any database", pStable->info.tableId);
     return TSDB_CODE_APP_ERROR;
   }
 
@@ -501,7 +503,7 @@ int32_t mgmtRetrieveShowSuperTables(SShowObj *pShow, char *data, int32_t rows, v
   SDbObj *pDb = mgmtGetDb(pShow->db);
   if (pDb == NULL) return 0;
 
-  SUserObj *pUser = mgmtGetUserFromConn(pConn);
+  SUserObj *pUser = mgmtGetUserFromConn(pConn, NULL);
 
   if (mgmtCheckIsMonitorDB(pDb->name, tsMonitorDbName)) {
     if (strcmp(pUser->user, "root") != 0 && strcmp(pUser->user, "_root") != 0 && strcmp(pUser->user, "monitor") != 0 ) {
@@ -519,12 +521,12 @@ int32_t mgmtRetrieveShowSuperTables(SShowObj *pShow, char *data, int32_t rows, v
   while (numOfRows < rows) {
     pShow->pNode = sdbFetchRow(tsSuperTableSdb, pShow->pNode, (void **) &pTable);
     if (pTable == NULL) break;
-    if (strncmp(pTable->tableId, prefix, prefixLen)) {
+    if (strncmp(pTable->info.tableId, prefix, prefixLen)) {
       continue;
     }
 
     memset(stableName, 0, tListLen(stableName));
-    mgmtExtractTableName(pTable->tableId, stableName);
+    mgmtExtractTableName(pTable->info.tableId, stableName);
 
     if (pShow->payloadLen > 0 &&
         patternMatch(pShow->payload, stableName, TSDB_TABLE_NAME_LEN, &info) != TSDB_PATTERN_MATCH)
@@ -572,7 +574,7 @@ void mgmtDropAllSuperTables(SDbObj *pDropDb) {
       break;
     }
 
-    if (strncmp(pDropDb->name, pTable->tableId, dbNameLen) == 0) {
+    if (strncmp(pDropDb->name, pTable->info.tableId, dbNameLen) == 0) {
       SSdbOperDesc oper = {
         .type = SDB_OPER_TYPE_LOCAL,
         .table = tsSuperTableSdb,
@@ -588,14 +590,6 @@ void mgmtDropAllSuperTables(SDbObj *pDropDb) {
   mTrace("db:%s, all super tables:%d is dropped from sdb", pDropDb->name, numOfTables);
 }
 
-void mgmtAddTableIntoSuperTable(SSuperTableObj *pStable) {
-  pStable->numOfTables++;
-}
-
-void mgmtRemoveTableFromSuperTable(SSuperTableObj *pStable) {
-  pStable->numOfTables--;
-}
-
 int32_t mgmtSetSchemaFromSuperTable(SSchema *pSchema, SSuperTableObj *pTable) {
   int32_t numOfCols = pTable->numOfColumns + pTable->numOfTags;
   for (int32_t i = 0; i < numOfCols; ++i) {
@@ -609,32 +603,70 @@ int32_t mgmtSetSchemaFromSuperTable(SSchema *pSchema, SSuperTableObj *pTable) {
   return (pTable->numOfColumns + pTable->numOfTags) * sizeof(SSchema);
 }
 
-int32_t mgmtGetSuperTableMeta(SDbObj *pDb, SSuperTableObj *pTable, STableMetaMsg *pMeta, bool usePublicIp) {
+void mgmtGetSuperTableMeta(SQueuedMsg *pMsg, SSuperTableObj *pTable) {
+  SDbObj *pDb = pMsg->pDb;
+  
+  STableMetaMsg *pMeta = rpcMallocCont(sizeof(STableMetaMsg) + sizeof(SSchema) * TSDB_MAX_COLUMNS);
   pMeta->uid          = htobe64(pTable->uid);
-  pMeta->sid          = htonl(pTable->sid);
-  pMeta->vgId         = htonl(pTable->vgId);
   pMeta->sversion     = htons(pTable->sversion);
   pMeta->precision    = pDb->cfg.precision;
-  pMeta->numOfTags    = pTable->numOfTags;
-  pMeta->numOfColumns = htons(pTable->numOfColumns);
-  pMeta->tableType    = pTable->type;
+  pMeta->numOfTags    = (uint8_t)pTable->numOfTags;
+  pMeta->numOfColumns = htons((int16_t)pTable->numOfColumns);
+  pMeta->tableType    = pTable->info.type;
   pMeta->contLen      = sizeof(STableMetaMsg) + mgmtSetSchemaFromSuperTable(pMeta->schema, pTable);
-  strcpy(pMeta->tableId, pTable->tableId);
+  strcpy(pMeta->tableId, pTable->info.tableId);
 
-  return TSDB_CODE_SUCCESS;
+  SRpcMsg rpcRsp = {
+    .handle = pMsg->thandle, 
+    .pCont = pMeta, 
+    .contLen = pMeta->contLen,
+  };
+  pMeta->contLen = htons(pMeta->contLen);
+  rpcSendResponse(&rpcRsp);
+
+  mTrace("stable:%%s, uid:%" PRIu64 " table meta is retrieved", pTable->info.tableId, pTable->uid);
 }
 
-int32_t mgmtExtractTableName(const char* tableId, char* name) {
-  int pos = -1;
-  int num = 0;
-  for (pos = 0; tableId[pos] != 0; ++pos) {
-    if (tableId[pos] == '.') num++;
-    if (num == 2) break;
+static void mgmtProcessSuperTableVgroupMsg(SQueuedMsg *pMsg) {
+  SCMSuperTableInfoMsg *pInfo = pMsg->pCont;
+  STableInfo *pTable = mgmtGetSuperTable(pInfo->tableId);
+  if (pTable == NULL) {
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_INVALID_TABLE);
+    return;
+  }
+
+  SCMSuperTableInfoRsp *pRsp = mgmtGetSuperTableVgroup((SSuperTableObj *) pTable);
+  if (pRsp != NULL) {
+    int32_t msgLen = sizeof(SSuperTableObj) + htonl(pRsp->numOfDnodes) * sizeof(int32_t);
+    SRpcMsg rpcRsp = {0};
+    rpcRsp.handle = pMsg->thandle;
+    rpcRsp.pCont = pRsp;
+    rpcRsp.contLen = msgLen;
+    rpcSendResponse(&rpcRsp);
+  } else {
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_INVALID_TABLE);
   }
+}
 
-  if (num == 2) {
-    strcpy(name, tableId + pos + 1);
-  }
-  return 0;
+void mgmtAlterSuperTable(SQueuedMsg *pMsg, SSuperTableObj *pTable) {
+  int32_t code = TSDB_CODE_OPS_NOT_SUPPORT;
+  SCMAlterTableMsg *pAlter = pMsg->pCont;
+   
+  if (pAlter->type == TSDB_ALTER_TABLE_ADD_TAG_COLUMN) {
+    code = mgmtAddSuperTableTag((SSuperTableObj *) pTable, pAlter->schema, 1);
+  } else if (pAlter->type == TSDB_ALTER_TABLE_DROP_TAG_COLUMN) {
+    code = mgmtDropSuperTableTag((SSuperTableObj *) pTable, pAlter->schema[0].name);
+  } else if (pAlter->type == TSDB_ALTER_TABLE_CHANGE_TAG_COLUMN) {
+    code = mgmtModifySuperTableTagNameByName((SSuperTableObj *) pTable, pAlter->schema[0].name, pAlter->schema[1].name);
+  } else if (pAlter->type == TSDB_ALTER_TABLE_ADD_COLUMN) {
+    code = mgmtAddSuperTableColumn((SSuperTableObj *) pTable, pAlter->schema, 1);
+  } else if (pAlter->type == TSDB_ALTER_TABLE_DROP_COLUMN) {
+    code = mgmtDropSuperTableColumnByName((SSuperTableObj *) pTable, pAlter->schema[0].name);
+  } else {}
+
+  mgmtSendSimpleResp(pMsg->thandle, code);
 }
 
+static void mgmtProcessDropStableRsp(SRpcMsg *rpcMsg) {
+ mTrace("drop stable rsp received, handle:%p code:%d", rpcMsg->handle, rpcMsg->code);
+}
\ No newline at end of file

src/mnode/src/mgmtTable.c

@@ -15,8 +15,6 @@
 
 #define _DEFAULT_SOURCE
 #include "os.h"
-
-#include "mgmtTable.h"
 #include "mgmtAcct.h"
 #include "mgmtChildTable.h"
 #include "mgmtDClient.h"
@@ -25,44 +23,17 @@
 #include "mgmtDServer.h"
 #include "mgmtGrant.h"
 #include "mgmtMnode.h"
-#include "mgmtNormalTable.h"
 #include "mgmtProfile.h"
 #include "mgmtSdb.h"
 #include "mgmtShell.h"
 #include "mgmtSuperTable.h"
+#include "mgmtTable.h"
 #include "mgmtUser.h"
-#include "mgmtVgroup.h"
-#include "mnode.h"
-
-#include "qast.h"
-#include "qextbuffer.h"
-#include "taoserror.h"
-#include "taosmsg.h"
-#include "tscompression.h"
-#include "tskiplist.h"
-#include "tsqlfunction.h"
-#include "tstatus.h"
-#include "ttime.h"
-#include "name.h"
-
-extern void *tsNormalTableSdb;
-extern void *tsChildTableSdb;
 
 static void mgmtProcessCreateTableMsg(SQueuedMsg *queueMsg);
 static void mgmtProcessDropTableMsg(SQueuedMsg *queueMsg);
 static void mgmtProcessAlterTableMsg(SQueuedMsg *queueMsg);
 static void mgmtProcessTableMetaMsg(SQueuedMsg *queueMsg);
-static void mgmtProcessMultiTableMetaMsg(SQueuedMsg *queueMsg);
-static void mgmtProcessSuperTableMetaMsg(SQueuedMsg *queueMsg);
-static void mgmtProcessCreateTableRsp(SRpcMsg *rpcMsg);
-static void mgmtProcessDropTableRsp(SRpcMsg *rpcMsg);
-static int32_t mgmtGetShowTableMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn);
-static void mgmtProcessAlterTableRsp(SRpcMsg *rpcMsg);
-static void mgmtProcessDropStableRsp(SRpcMsg *rpcMsg);
-static int32_t mgmtGetShowTableMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn);
-static int32_t mgmtRetrieveShowTables(SShowObj *pShow, char *data, int32_t rows, void *pConn);
-static void mgmtProcessGetTableMeta(STableInfo *pTable, void *thandle);
-static void mgmtProcessTableCfgMsg(SRpcMsg *rpcMsg);
 
 int32_t mgmtInitTables() {
   int32_t code = mgmtInitSuperTables();
@@ -70,11 +41,6 @@ int32_t mgmtInitTables() {
     return code;
   }
 
-  code = mgmtInitNormalTables();
-  if (code != TSDB_CODE_SUCCESS) {
-    return code;
-  }
-
   code = mgmtInitChildTables();
   if (code != TSDB_CODE_SUCCESS) {
     return code;
@@ -84,31 +50,17 @@ int32_t mgmtInitTables() {
   mgmtAddShellMsgHandle(TSDB_MSG_TYPE_CM_DROP_TABLE, mgmtProcessDropTableMsg);
   mgmtAddShellMsgHandle(TSDB_MSG_TYPE_CM_ALTER_TABLE, mgmtProcessAlterTableMsg);
   mgmtAddShellMsgHandle(TSDB_MSG_TYPE_CM_TABLE_META, mgmtProcessTableMetaMsg);
-  mgmtAddShellMsgHandle(TSDB_MSG_TYPE_CM_TABLES_META, mgmtProcessMultiTableMetaMsg);
-  mgmtAddShellMsgHandle(TSDB_MSG_TYPE_CM_STABLE_META, mgmtProcessSuperTableMetaMsg);
-  mgmtAddShellShowMetaHandle(TSDB_MGMT_TABLE_TABLE, mgmtGetShowTableMeta);
-  mgmtAddShellShowRetrieveHandle(TSDB_MGMT_TABLE_TABLE, mgmtRetrieveShowTables);
-  mgmtAddDClientRspHandle(TSDB_MSG_TYPE_MD_CREATE_TABLE_RSP, mgmtProcessCreateTableRsp);
-  mgmtAddDClientRspHandle(TSDB_MSG_TYPE_MD_DROP_TABLE_RSP, mgmtProcessDropTableRsp);
-  mgmtAddDClientRspHandle(TSDB_MSG_TYPE_MD_ALTER_TABLE_RSP, mgmtProcessAlterTableRsp);
-  mgmtAddDClientRspHandle(TSDB_MSG_TYPE_MD_DROP_STABLE_RSP, mgmtProcessDropStableRsp);
-  mgmtAddDServerMsgHandle(TSDB_MSG_TYPE_DM_CONFIG_TABLE, mgmtProcessTableCfgMsg);
 
   return TSDB_CODE_SUCCESS;
 }
 
-STableInfo* mgmtGetTable(char *tableId) {
-  STableInfo *tableInfo = (STableInfo *) mgmtGetSuperTable(tableId);
+STableInfo *mgmtGetTable(char *tableId) {
+  STableInfo *tableInfo = mgmtGetSuperTable(tableId);
   if (tableInfo != NULL) {
     return tableInfo;
   }
 
-  tableInfo = (STableInfo *) mgmtGetNormalTable(tableId);
-  if (tableInfo != NULL) {
-    return tableInfo;
-  }
-
-  tableInfo = (STableInfo *) mgmtGetChildTable(tableId);
+  tableInfo = mgmtGetChildTable(tableId);
   if (tableInfo != NULL) {
     return tableInfo;
   }
@@ -116,249 +68,29 @@ STableInfo* mgmtGetTable(char *tableId) {
   return NULL;
 }
 
-STableInfo* mgmtGetTableByPos(uint32_t dnodeId, int32_t vnode, int32_t sid) {
-  SDnodeObj *pObj = mgmtGetDnode(dnodeId);
-  SVgObj *pVgroup = mgmtGetVgroup(vnode);
-
-  if (pObj == NULL || pVgroup == NULL) {
-    return NULL;
-  }
-
-  return pVgroup->tableList[sid];
-}
-
-int32_t mgmtGetTableMeta(SDbObj *pDb, STableInfo *pTable, STableMetaMsg *pMeta, bool usePublicIp) {
-  if (pTable->type == TSDB_CHILD_TABLE) {
-    mgmtGetChildTableMeta(pDb, (SChildTableObj *) pTable, pMeta, usePublicIp);
-  } else if (pTable->type == TSDB_NORMAL_TABLE) {
-    mgmtGetNormalTableMeta(pDb, (SNormalTableObj *) pTable, pMeta, usePublicIp);
-  } else if (pTable->type == TSDB_SUPER_TABLE) {
-    mgmtGetSuperTableMeta(pDb, (SSuperTableObj *) pTable, pMeta, usePublicIp);
-  } else {
-    mTrace("%s, uid:%" PRIu64 " table meta retrieve failed, invalid type", pTable->tableId, pTable->uid);
-    return TSDB_CODE_INVALID_TABLE;
-  }
-
-  mTrace("%s, uid:%" PRIu64 " table meta is retrieved", pTable->tableId, pTable->uid);
-  return TSDB_CODE_SUCCESS;
-}
-
-int32_t mgmtAlterTable(SDbObj *pDb, SCMAlterTableMsg *pAlter) {
-  STableInfo *pTable = mgmtGetTable(pAlter->tableId);
-  if (pTable == NULL) {
-    return TSDB_CODE_INVALID_TABLE;
-  }
-
-  if (mgmtCheckIsMonitorDB(pDb->name, tsMonitorDbName)) {
-    return TSDB_CODE_MONITOR_DB_FORBIDDEN;
-  }
-
-  if (pAlter->type == TSDB_ALTER_TABLE_ADD_TAG_COLUMN) {
-    if (pTable->type == TSDB_SUPER_TABLE) {
-      return mgmtAddSuperTableTag((SSuperTableObj *) pTable, pAlter->schema, 1);
-    }
-  } else if (pAlter->type == TSDB_ALTER_TABLE_DROP_TAG_COLUMN) {
-    if (pTable->type == TSDB_SUPER_TABLE) {
-      return mgmtDropSuperTableTag((SSuperTableObj *) pTable, pAlter->schema[0].name);
-    }
-  } else if (pAlter->type == TSDB_ALTER_TABLE_CHANGE_TAG_COLUMN) {
-    if (pTable->type == TSDB_SUPER_TABLE) {
-      return mgmtModifySuperTableTagNameByName((SSuperTableObj *) pTable, pAlter->schema[0].name, pAlter->schema[1].name);
-    }
-  } else if (pAlter->type == TSDB_ALTER_TABLE_UPDATE_TAG_VAL) {
-    if (pTable->type == TSDB_CHILD_TABLE) {
-      return mgmtModifyChildTableTagValueByName((SChildTableObj *) pTable, pAlter->schema[0].name, pAlter->tagVal);
-    }
-  } else if (pAlter->type == TSDB_ALTER_TABLE_ADD_COLUMN) {
-    if (pTable->type == TSDB_NORMAL_TABLE) {
-      return mgmtAddNormalTableColumn((SNormalTableObj *) pTable, pAlter->schema, 1);
-    } else if (pTable->type == TSDB_SUPER_TABLE) {
-      return mgmtAddSuperTableColumn((SSuperTableObj *) pTable, pAlter->schema, 1);
-    } else {}
-  } else if (pAlter->type == TSDB_ALTER_TABLE_DROP_COLUMN) {
-    if (pTable->type == TSDB_NORMAL_TABLE) {
-      return mgmtDropNormalTableColumnByName((SNormalTableObj *) pTable, pAlter->schema[0].name);
-    } else if (pTable->type == TSDB_SUPER_TABLE) {
-      return mgmtDropSuperTableColumnByName((SSuperTableObj *) pTable, pAlter->schema[0].name);
-    } else {}
-  } else {}
-
-  return TSDB_CODE_OPS_NOT_SUPPORT;
-}
-
 void mgmtCleanUpTables() {
-  mgmtCleanUpNormalTables();
   mgmtCleanUpChildTables();
   mgmtCleanUpSuperTables();
 }
 
-int32_t mgmtGetShowTableMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn) {
-  SDbObj *pDb = mgmtGetDb(pShow->db);
-  if (pDb == NULL) {
-    return TSDB_CODE_DB_NOT_SELECTED;
-  }
-
-  int32_t cols = 0;
-  SSchema *pSchema = pMeta->schema;
-
-  pShow->bytes[cols] = TSDB_TABLE_NAME_LEN;
-  pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
-  strcpy(pSchema[cols].name, "table name");
-  pSchema[cols].bytes = htons(pShow->bytes[cols]);
-  cols++;
-
-  pShow->bytes[cols] = 8;
-  pSchema[cols].type = TSDB_DATA_TYPE_TIMESTAMP;
-  strcpy(pSchema[cols].name, "create time");
-  pSchema[cols].bytes = htons(pShow->bytes[cols]);
-  cols++;
-
-  pShow->bytes[cols] = 2;
-  pSchema[cols].type = TSDB_DATA_TYPE_SMALLINT;
-  strcpy(pSchema[cols].name, "columns");
-  pSchema[cols].bytes = htons(pShow->bytes[cols]);
-  cols++;
-
-  pShow->bytes[cols] = TSDB_TABLE_NAME_LEN;
-  pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
-  strcpy(pSchema[cols].name, "stable name");
-  pSchema[cols].bytes = htons(pShow->bytes[cols]);
-  cols++;
-
-  pMeta->numOfColumns = htons(cols);
-  pShow->numOfColumns = cols;
-
-  pShow->offset[0] = 0;
-  for (int32_t i = 1; i < cols; ++i) {
-    pShow->offset[i] = pShow->offset[i - 1] + pShow->bytes[i - 1];
-  }
-
-  pShow->numOfRows = pDb->numOfTables;
-  pShow->rowSize   = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-
-  return 0;
-}
-
-static void mgmtVacuumResult(char *data, int32_t numOfCols, int32_t rows, int32_t capacity, SShowObj *pShow) {
-  if (rows < capacity) {
-    for (int32_t i = 0; i < numOfCols; ++i) {
-      memmove(data + pShow->offset[i] * rows, data + pShow->offset[i] * capacity, pShow->bytes[i] * rows);
-    }
+void mgmtExtractTableName(char* tableId, char* name) {
+  int pos = -1;
+  int num = 0;
+  for (pos = 0; tableId[pos] != 0; ++pos) {
+    if (tableId[pos] == '.') num++;
+    if (num == 2) break;
   }
-}
-
-int32_t mgmtRetrieveShowTables(SShowObj *pShow, char *data, int32_t rows, void *pConn) {
-  SDbObj *pDb = mgmtGetDb(pShow->db);
-  if (pDb == NULL) return 0;
-
-  SUserObj *pUser = mgmtGetUserFromConn(pConn);
-  if (pUser == NULL) return 0;
-
-  if (mgmtCheckIsMonitorDB(pDb->name, tsMonitorDbName)) {
-    if (strcmp(pUser->user, "root") != 0 && strcmp(pUser->user, "_root") != 0 &&
-        strcmp(pUser->user, "monitor") != 0) {
-      return 0;
-    }
-  }
-
-  int32_t numOfRows  = 0;
-  int32_t numOfRead  = 0;
-  int32_t cols       = 0;
-  void    *pTable    = NULL;
-  char    *pWrite    = NULL;
-  char    prefix[20] = {0};
-  SPatternCompareInfo info = PATTERN_COMPARE_INFO_INITIALIZER;
-
-  strcpy(prefix, pDb->name);
-  strcat(prefix, TS_PATH_DELIMITER);
-  int32_t prefixLen = strlen(prefix);
-
-  while (numOfRows < rows) {
-    int16_t numOfColumns      = 0;
-    int64_t createdTime       = 0;
-    char    *tableId          = NULL;
-    char    *superTableId     = NULL;
-    void    *pNormalTableNode = sdbFetchRow(tsNormalTableSdb, pShow->pNode, (void **) &pTable);
-    if (pTable != NULL) {
-      SNormalTableObj *pNormalTable = (SNormalTableObj *) pTable;
-      pShow->pNode = pNormalTableNode;
-      tableId      = pNormalTable->tableId;
-      superTableId = NULL;
-      createdTime  = pNormalTable->createdTime;
-      numOfColumns = pNormalTable->numOfColumns;
-    } else {
-      void *pChildTableNode = sdbFetchRow(tsChildTableSdb, pShow->pNode, (void **) &pTable);
-      if (pTable != NULL) {
-        SChildTableObj *pChildTable = (SChildTableObj *) pTable;
-        pShow->pNode = pChildTableNode;
-        tableId      = pChildTable->tableId;
-        superTableId = pChildTable->superTableId;
-        createdTime  = pChildTable->createdTime;
-        numOfColumns = pChildTable->superTable->numOfColumns;
-      } else {
-        break;
-      }
-    }
-
-    // not belong to current db
-    if (strncmp(tableId, prefix, prefixLen)) {
-      continue;
-    }
 
-    char tableName[TSDB_TABLE_NAME_LEN] = {0};
-    memset(tableName, 0, tListLen(tableName));
-    numOfRead++;
-
-    // pattern compare for meter name
-    mgmtExtractTableName(tableId, tableName);
-
-    if (pShow->payloadLen > 0 &&
-        patternMatch(pShow->payload, tableName, TSDB_TABLE_NAME_LEN, &info) != TSDB_PATTERN_MATCH) {
-      continue;
-    }
-
-    cols = 0;
-
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-    strncpy(pWrite, tableName, TSDB_TABLE_NAME_LEN);
-    cols++;
-
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-    *(int64_t *) pWrite = createdTime;
-    cols++;
-
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-    *(int16_t *) pWrite = numOfColumns;
-    cols++;
-
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-    if (superTableId != NULL) {
-      mgmtExtractTableName(superTableId, pWrite);
-    }
-    cols++;
-
-    numOfRows++;
+  if (num == 2) {
+    strcpy(name, tableId + pos + 1);
   }
-
-  pShow->numOfReads += numOfRead;
-  const int32_t NUM_OF_COLUMNS = 4;
-
-  mgmtVacuumResult(data, NUM_OF_COLUMNS, numOfRows, rows, pShow);
-
-  return numOfRows;
 }
 
-void mgmtProcessCreateTableMsg(SQueuedMsg *pMsg) {
-  if (mgmtCheckRedirect(pMsg->thandle)) return;
-
+static void mgmtProcessCreateTableMsg(SQueuedMsg *pMsg) {
   SCMCreateTableMsg *pCreate = pMsg->pCont;
   mTrace("table:%s, create msg is received from thandle:%p", pCreate->tableId, pMsg->thandle);
 
-  if (mgmtCheckExpired()) {
-    mError("table:%s, failed to create, grant expired", pCreate->tableId);
-    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_GRANT_EXPIRED);
-    return;
-  }
+  if (mgmtCheckRedirect(pMsg->thandle)) return;
 
   if (!pMsg->pUser->writeAuth) {
     mError("table:%s, failed to create, no rights", pCreate->tableId);
@@ -366,16 +98,8 @@ void mgmtProcessCreateTableMsg(SQueuedMsg *pMsg) {
     return;
   }
 
-  SAcctObj *pAcct = pMsg->pUser->pAcct;
-  int32_t code = mgmtCheckTableLimit(pAcct, htons(pCreate->numOfColumns));
-  if (code != TSDB_CODE_SUCCESS) {
-    mError("table:%s, failed to create, exceed the limit", pCreate->tableId);
-    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_NO_RIGHTS);
-    return;
-  }
-
   pMsg->pDb = mgmtGetDb(pCreate->db);
-  if (pMsg->pDb == NULL) {
+  if (pMsg->pDb == NULL || pMsg->pDb->dirty) {
     mError("table:%s, failed to create, db not selected", pCreate->tableId);
     mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_DB_NOT_SELECTED);
     return;
@@ -395,92 +119,19 @@ void mgmtProcessCreateTableMsg(SQueuedMsg *pMsg) {
   }
 
   if (pCreate->numOfTags != 0) {
-    mTrace("table:%s, is a super table", pCreate->tableId);
-    code = mgmtCreateSuperTable(pCreate);
-    mgmtSendSimpleResp(pMsg->thandle, code);
-    return;
-  }
-
-  code = mgmtCheckTimeSeries(pCreate->numOfColumns);
-  if (code != TSDB_CODE_SUCCESS) {
-    mError("table:%s, failed to create, timeseries exceed the limit", pCreate->tableId);
-    mgmtSendSimpleResp(pMsg->thandle, code);
-    return;
-  }
-
-  SQueuedMsg *newMsg = malloc(sizeof(SQueuedMsg));
-  memcpy(newMsg, pMsg, sizeof(SQueuedMsg));
-  pMsg->pCont = NULL;
-
-  SVgObj *pVgroup = mgmtGetAvailableVgroup(pMsg->pDb);
-  if (pVgroup == NULL) {
-    mTrace("table:%s, start to create a new vgroup", pCreate->tableId);
-    mgmtCreateVgroup(newMsg);
-    return;
-  }
-
-  int32_t sid = taosAllocateId(pVgroup->idPool);
-  if (sid < 0) {
-    mTrace("tables:%s, no enough sid in vgroup:%d", pVgroup->vgId);
-    mgmtCreateVgroup(newMsg);
-    return;
-  }
-
-  SMDCreateTableMsg *pMDCreate = NULL;
-  if (pCreate->numOfColumns == 0) {
-    mTrace("table:%s, is a child table, vgroup:%d sid:%d ahandle:%p", pCreate->tableId, pVgroup->vgId, sid, pMsg);
-    pTable = mgmtCreateChildTable(pCreate, pVgroup, sid);
-    if (pTable == NULL) {
-      mgmtSendSimpleResp(pMsg->thandle, terrno);
-      mgmtFreeQueuedMsg(newMsg);
-      return;
-    }
-    pMDCreate = mgmtBuildCreateChildTableMsg(pCreate, (SChildTableObj *) pTable);
-    if (pMDCreate == NULL) {
-      mgmtSendSimpleResp(pMsg->thandle, terrno);
-      mgmtFreeQueuedMsg(newMsg);
-      return;
-    }
+    mTrace("table:%s, is a stable", pCreate->tableId);
+    mgmtCreateSuperTable(pMsg);
   } else {
-    mTrace("table:%s, is a normal table, vgroup:%d sid:%d ahandle:%p", pCreate->tableId, pVgroup->vgId, sid, pMsg);
-    pTable = mgmtCreateNormalTable(pCreate, pVgroup, sid);
-    if (pTable == NULL) {
-      mgmtSendSimpleResp(pMsg->thandle, terrno);
-      mgmtFreeQueuedMsg(newMsg);
-      return;
-    }
-    pMDCreate = mgmtBuildCreateNormalTableMsg((SNormalTableObj *) pTable);
-    if (pMDCreate == NULL) {
-      mgmtSendSimpleResp(pMsg->thandle, terrno);
-      mgmtFreeQueuedMsg(newMsg);
-      return;
-    }
+    mTrace("table:%s, is a ctable", pCreate->tableId);
+    mgmtCreateChildTable(pMsg);
   }
-
-  SRpcIpSet ipSet = mgmtGetIpSetFromVgroup(pVgroup);
-  SRpcMsg rpcMsg = {
-      .handle  = newMsg,
-      .pCont   = pMDCreate,
-      .contLen = htonl(pMDCreate->contLen),
-      .code    = 0,
-      .msgType = TSDB_MSG_TYPE_MD_CREATE_TABLE
-  };
-
-  newMsg->ahandle = pTable;
-  mgmtSendMsgToDnode(&ipSet, &rpcMsg);
 }
 
-void mgmtProcessDropTableMsg(SQueuedMsg *pMsg) {
-  if (mgmtCheckRedirect(pMsg->thandle)) return;
-
+static void mgmtProcessDropTableMsg(SQueuedMsg *pMsg) {
   SCMDropTableMsg *pDrop = pMsg->pCont;
   mTrace("table:%s, drop table msg is received from thandle:%p", pDrop->tableId, pMsg->thandle);
 
-  if (mgmtCheckExpired()) {
-    mError("table:%s, failed to drop, grant expired", pDrop->tableId);
-    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_GRANT_EXPIRED);
-    return;
-  }
+  if (mgmtCheckRedirect(pMsg->thandle)) return;
 
   if (!pMsg->pUser->writeAuth) {
     mError("table:%s, failed to drop, no rights", pDrop->tableId);
@@ -488,13 +139,19 @@ void mgmtProcessDropTableMsg(SQueuedMsg *pMsg) {
     return;
   }
 
-  SDbObj *pDb = mgmtGetDbByTableId(pDrop->tableId);
-  if (pDb == NULL) {
+  pMsg->pDb = mgmtGetDbByTableId(pDrop->tableId);
+  if (pMsg->pDb == NULL || pMsg->pDb->dirty) {
     mError("table:%s, failed to drop table, db not selected", pDrop->tableId);
     mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_DB_NOT_SELECTED);
     return;
   }
 
+  if (mgmtCheckIsMonitorDB(pMsg->pDb->name, tsMonitorDbName)) {
+    mError("table:%s, failed to drop table, in monitor database", pDrop->tableId);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_MONITOR_DB_FORBIDDEN);
+    return;
+  }
+
   STableInfo *pTable = mgmtGetTable(pDrop->tableId);
   if (pTable == NULL) {
     if (pDrop->igNotExists) {
@@ -508,409 +165,82 @@ void mgmtProcessDropTableMsg(SQueuedMsg *pMsg) {
     }
   }
 
-  if (mgmtCheckIsMonitorDB(pDb->name, tsMonitorDbName)) {
-    mError("table:%s, failed to drop table, in monitor database", pDrop->tableId);
-    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_MONITOR_DB_FORBIDDEN);
-    return;
-  }
-
-  SQueuedMsg *newMsg = malloc(sizeof(SQueuedMsg));
-  memcpy(newMsg, pMsg, sizeof(SQueuedMsg));
-  pMsg->pCont = NULL;
-  int32_t code;
-
-  switch (pTable->type) {
-    case TSDB_SUPER_TABLE:
-      mTrace("table:%s, start to drop super table", pDrop->tableId);
-      code = mgmtDropSuperTable(newMsg, pDb, (SSuperTableObj *) pTable);
-      break;
-    case TSDB_CHILD_TABLE:
-      mTrace("table:%s, start to drop child table", pDrop->tableId);
-      code = mgmtDropChildTable(newMsg, (SChildTableObj *) pTable);
-      break;
-    case TSDB_NORMAL_TABLE:
-      mTrace("table:%s, start to drop normal table", pDrop->tableId);
-      code = mgmtDropNormalTable(newMsg, (SNormalTableObj *) pTable);
-      break;
-    case TSDB_STREAM_TABLE:
-      mTrace("table:%s, start to drop stream table", pDrop->tableId);
-      code = mgmtDropNormalTable(newMsg, (SNormalTableObj *) pTable);
-      break;
-    default:
-      code = TSDB_CODE_INVALID_TABLE_TYPE;
-      mError("table:%s, invalid table type:%d", pDrop->tableId, pTable->type);
-  }
-
-  if (code != TSDB_CODE_SUCCESS) {
-    free(newMsg);
-    mgmtSendSimpleResp(pMsg->thandle, code);
-  }
-}
-
-void mgmtProcessAlterTableMsg(SQueuedMsg *pMsg) {
-  if (mgmtCheckRedirect(pMsg->thandle)) {
-    return;
-  }
-
-  SUserObj *pUser = mgmtGetUserFromConn(pMsg->thandle);
-  if (pUser == NULL) {
-    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_INVALID_USER);
-    return;
-  }
-
-  SCMAlterTableMsg *pAlter = pMsg->pCont;
-
-  int32_t code;
-  if (!pUser->writeAuth) {
-    code = TSDB_CODE_NO_RIGHTS;
+  if (pTable->type == TSDB_SUPER_TABLE) {
+    mTrace("table:%s, start to drop stable", pDrop->tableId);
+    mgmtDropSuperTable(pMsg, (SSuperTableObj *)pTable);
   } else {
-    pAlter->type      = htons(pAlter->type);
-    pAlter->numOfCols = htons(pAlter->numOfCols);
-
-    if (pAlter->numOfCols > 2) {
-      mError("table:%s error numOfCols:%d in alter table", pAlter->tableId, pAlter->numOfCols);
-      code = TSDB_CODE_APP_ERROR;
-    } else {
-      SDbObj *pDb = mgmtGetDb(pAlter->db);
-      if (pDb) {
-        for (int32_t i = 0; i < pAlter->numOfCols; ++i) {
-          pAlter->schema[i].bytes = htons(pAlter->schema[i].bytes);
-        }
-
-        code = mgmtAlterTable(pDb, pAlter);
-        if (code == 0) {
-          mLPrint("table:%s is altered by %s", pAlter->tableId, pUser->user);
-        }
-      } else {
-        code = TSDB_CODE_DB_NOT_SELECTED;
-      }
-    }
+    mTrace("table:%s, start to drop ctable", pDrop->tableId);
+    mgmtDropChildTable(pMsg, (SChildTableObj *)pTable);
   }
-
-  mgmtSendSimpleResp(pMsg->thandle, code);
 }
 
-void mgmtProcessGetTableMeta(STableInfo *pTable, void *thandle) {
-  SRpcMsg rpcRsp = {.handle = thandle, .pCont = NULL, .contLen = 0, .code = 0, .msgType = 0};
-  SDbObj* pDb = mgmtGetDbByTableId(pTable->tableId);
-  if (pDb == NULL || pDb->dirty) {
-    mError("table:%s, failed to get table meta, db not selected", pTable->tableId);
-    rpcRsp.code = TSDB_CODE_DB_NOT_SELECTED;
-    rpcSendResponse(&rpcRsp);
-    return;
-  }
-
-  SRpcConnInfo connInfo;
-  if (rpcGetConnInfo(thandle, &connInfo) != 0) {
-    mError("conn:%p is already released while get table meta", thandle);
-    return;
-  }
-
-  bool usePublicIp = (connInfo.serverIp == tsPublicIpInt);
-  
-  STableMetaMsg *pMeta = rpcMallocCont(sizeof(STableMetaMsg) + sizeof(SSchema) * TSDB_MAX_COLUMNS);
-  rpcRsp.code = mgmtGetTableMeta(pDb, pTable, pMeta, usePublicIp);
-
-  if (rpcRsp.code != TSDB_CODE_SUCCESS) {
-    rpcFreeCont(pMeta);
-  } else {
-    rpcRsp.pCont   = pMeta;
-    rpcRsp.contLen = pMeta->contLen;
-    
-    pMeta->contLen = htons(pMeta->contLen);
-  }
-
-  rpcSendResponse(&rpcRsp);
-}
-
-void mgmtProcessTableMetaMsg(SQueuedMsg *pMsg) {
-  SCMTableInfoMsg *pInfo = pMsg->pCont;
-  pInfo->createFlag = htons(pInfo->createFlag);
-
-  SUserObj *pUser = mgmtGetUserFromConn(pMsg->thandle);
-  if (pUser == NULL) {
-    mError("table:%s, failed to get table meta, invalid user", pInfo->tableId);
-    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_INVALID_USER);
-    return;
-  }
+static void mgmtProcessAlterTableMsg(SQueuedMsg *pMsg) {
+  SCMAlterTableMsg *pAlter = pMsg->pCont;
+  mTrace("table:%s, alter table msg is received from thandle:%p", pAlter->tableId, pMsg->thandle);
 
-  STableInfo *pTable = mgmtGetTable(pInfo->tableId);
-  if (pTable == NULL) {
-    if (pInfo->createFlag != 1) {
-      mError("table:%s, failed to get table meta, table not exist", pInfo->tableId);
-      mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_INVALID_TABLE);
-      return;
-    } else {
-      // on demand create table from super table if table does not exists
-      if (mgmtCheckRedirect(pMsg->thandle)) {
-        mError("table:%s, failed to create table while get meta info, need redirect message", pInfo->tableId);
-        return;
-      }
-
-      int32_t contLen = sizeof(SCMCreateTableMsg) + sizeof(STagData);
-      SCMCreateTableMsg *pCreateMsg = rpcMallocCont(contLen);
-      if (pCreateMsg == NULL) {
-        mError("table:%s, failed to create table while get meta info, no enough memory", pInfo->tableId);
-        mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_SERV_OUT_OF_MEMORY);
-        return;
-      }
-
-      memcpy(pCreateMsg->schema, pInfo->tags, sizeof(STagData));
-      strcpy(pCreateMsg->tableId, pInfo->tableId);
-
-      mError("table:%s, start to create table while get meta info", pInfo->tableId);
-//      mgmtCreateTable(pCreateMsg, contLen, pMsg->thandle, true);
-    }
-  } else {
-    mgmtProcessGetTableMeta(pTable, pMsg->thandle);
-  }
-}
+  if (mgmtCheckRedirect(pMsg->thandle)) return;
 
-void mgmtProcessMultiTableMetaMsg(SQueuedMsg *pMsg) {
-  SRpcConnInfo connInfo;
-  if (rpcGetConnInfo(pMsg->thandle, &connInfo) != 0) {
-    mError("conn:%p is already released while get mulit table meta", pMsg->thandle);
+  if (!pMsg->pUser->writeAuth) {
+    mTrace("table:%s, failed to alter table, no rights", pAlter->tableId);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_NO_RIGHTS);
     return;
   }
 
-  bool usePublicIp = (connInfo.serverIp == tsPublicIpInt);
-  SUserObj *pUser = mgmtGetUser(connInfo.user);
-  if (pUser == NULL) {
-    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_INVALID_USER);
+  pMsg->pDb = mgmtGetDbByTableId(pAlter->tableId);
+  if (pMsg->pDb == NULL || pMsg->pDb->dirty) {
+    mError("table:%s, failed to alter table, db not selected", pAlter->tableId);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_DB_NOT_SELECTED);
     return;
   }
 
-  SCMMultiTableInfoMsg *pInfo = pMsg->pCont;
-  pInfo->numOfTables = htonl(pInfo->numOfTables);
-
-  int32_t totalMallocLen = 4*1024*1024; // first malloc 4 MB, subsequent reallocation as twice
-  SMultiTableMeta *pMultiMeta = rpcMallocCont(totalMallocLen);
-  if (pMultiMeta == NULL) {
-    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_SERV_OUT_OF_MEMORY);
+  if (mgmtCheckIsMonitorDB(pMsg->pDb->name, tsMonitorDbName)) {
+    mError("table:%s, failed to alter table, its log db", pAlter->tableId);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_MONITOR_DB_FORBIDDEN);
     return;
   }
 
-  pMultiMeta->contLen = sizeof(SMultiTableMeta);
-  pMultiMeta->numOfTables = 0;
-
-  for (int t = 0; t < pInfo->numOfTables; ++t) {
-    char *tableId = (char*)(pInfo->tableIds + t * TSDB_TABLE_ID_LEN);
-    STableInfo *pTable = mgmtGetTable(tableId);
-    if (pTable == NULL) continue;
-
-    SDbObj *pDb = mgmtGetDbByTableId(tableId);
-    if (pDb == NULL) continue;
-
-    int availLen = totalMallocLen - pMultiMeta->contLen;
-    if (availLen <= sizeof(STableMetaMsg) + sizeof(SSchema) * TSDB_MAX_COLUMNS) {
-      //TODO realloc
-      //totalMallocLen *= 2;
-      //pMultiMeta = rpcReMalloc(pMultiMeta, totalMallocLen);
-      //if (pMultiMeta == NULL) {
-      ///  rpcSendResponse(ahandle, TSDB_CODE_SERV_OUT_OF_MEMORY, NULL, 0);
-      //  return TSDB_CODE_SERV_OUT_OF_MEMORY;
-      //} else {
-      //  t--;
-      //  continue;
-      //}
-    }
-
-    STableMetaMsg *pMeta = (STableMetaMsg *)(pMultiMeta->metas + pMultiMeta->contLen);
-    int32_t code = mgmtGetTableMeta(pDb, pTable, pMeta, usePublicIp);
-    if (code == TSDB_CODE_SUCCESS) {
-      pMultiMeta->numOfTables ++;
-      pMultiMeta->contLen += pMeta->contLen;
-    }
-  }
-
-  SRpcMsg rpcRsp = {0};
-  rpcRsp.handle = pMsg->thandle;
-  rpcRsp.pCont = pMultiMeta;
-  rpcRsp.contLen = pMultiMeta->contLen;
-  rpcSendResponse(&rpcRsp);
-}
-
-void mgmtProcessSuperTableMetaMsg(SQueuedMsg *pMsg) {
-  SCMSuperTableInfoMsg *pInfo = pMsg->pCont;
-  STableInfo *pTable = mgmtGetSuperTable(pInfo->tableId);
+  STableInfo *pTable = mgmtGetTable(pAlter->tableId);
   if (pTable == NULL) {
+    mError("table:%s, failed to alter table, table not exist", pTable->tableId);
     mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_INVALID_TABLE);
     return;
   }
 
-  SCMSuperTableInfoRsp *pRsp = mgmtGetSuperTableVgroup((SSuperTableObj *) pTable);
-  if (pRsp != NULL) {
-    int32_t msgLen = sizeof(SSuperTableObj) + htonl(pRsp->numOfDnodes) * sizeof(int32_t);
-    SRpcMsg rpcRsp = {0};
-    rpcRsp.handle = pMsg->thandle;
-    rpcRsp.pCont = pRsp;
-    rpcRsp.contLen = msgLen;
-    rpcSendResponse(&rpcRsp);
-  } else {
-    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_INVALID_TABLE);
-  }
-}
-
-static void mgmtProcessCreateTableRsp(SRpcMsg *rpcMsg) {
-  if (rpcMsg->handle == NULL) return;
-
-  SQueuedMsg *queueMsg = rpcMsg->handle;
-  queueMsg->received++;
-
-  STableInfo *pTable = queueMsg->ahandle;
-  mTrace("table:%s, create table rsp received, thandle:%p ahandle:%p result:%s", pTable->tableId, queueMsg->thandle,
-         rpcMsg->handle, tstrerror(rpcMsg->code));
-
-  if (rpcMsg->code != TSDB_CODE_SUCCESS) {
-    if (pTable->type == TSDB_CHILD_TABLE) {
-      SSdbOperDesc oper = {
-        .type = SDB_OPER_TYPE_GLOBAL,
-        .table = tsChildTableSdb,
-        .pObj = pTable
-      };
-      sdbDeleteRow(&oper);
-    } else if (pTable->type == TSDB_NORMAL_TABLE){
-      SSdbOperDesc oper = {
-        .type = SDB_OPER_TYPE_GLOBAL,
-        .table = tsNormalTableSdb,
-        .pObj = pTable
-      };
-      sdbDeleteRow(&oper);
-    } else {}
-    mError("table:%s, failed to create in dnode, reason:%s", pTable->tableId, tstrerror(rpcMsg->code));
-    mgmtSendSimpleResp(queueMsg->thandle, rpcMsg->code);
-  } else {
-    mTrace("table:%s, created in dnode", pTable->tableId);
-    if (queueMsg->msgType != TSDB_MSG_TYPE_CM_CREATE_TABLE) {
-      SQueuedMsg *newMsg = calloc(1, sizeof(SQueuedMsg));
-      newMsg->msgType = queueMsg->msgType;
-      newMsg->thandle = queueMsg->thandle;
-      newMsg->pDb     = queueMsg->pDb;
-      newMsg->pUser   = queueMsg->pUser;
-      newMsg->contLen = queueMsg->contLen;
-      newMsg->pCont   = rpcMallocCont(newMsg->contLen);
-      memcpy(newMsg->pCont, queueMsg->pCont, newMsg->contLen);
-      mTrace("table:%s, start to get meta", pTable->tableId);
-      mgmtAddToShellQueue(newMsg);
-    } else {
-      mgmtSendSimpleResp(queueMsg->thandle, rpcMsg->code);
-    }
-  }
-
-  free(queueMsg);
-}
-
-static void mgmtProcessAlterTableRsp(SRpcMsg *rpcMsg) {
-  mTrace("alter table rsp received, handle:%p code:%d", rpcMsg->handle, rpcMsg->code);
-}
-
-static void mgmtProcessDropTableRsp(SRpcMsg *rpcMsg) {
-  if (rpcMsg->handle == NULL) return;
-
-  SQueuedMsg *queueMsg = rpcMsg->handle;
-  queueMsg->received++;
-
-  STableInfo *pTable = queueMsg->ahandle;
-  mTrace("table:%s, drop table rsp received, thandle:%p result:%s", pTable->tableId, queueMsg->thandle, tstrerror(rpcMsg->code));
-
-  if (rpcMsg->code != TSDB_CODE_SUCCESS) {
-    mError("table:%s, failed to drop in dnode, reason:%s", pTable->tableId, tstrerror(rpcMsg->code));
-    mgmtSendSimpleResp(queueMsg->thandle, rpcMsg->code);
-    free(queueMsg);
+  pAlter->numOfCols = htons(pAlter->numOfCols);
+  if (pAlter->numOfCols > 2) {
+    mError("table:%s, error numOfCols:%d in alter table", pAlter->tableId, pAlter->numOfCols);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_APP_ERROR);
     return;
   }
 
-  SVgObj *pVgroup = mgmtGetVgroup(pTable->vgId);
-  if (pVgroup == NULL) {
-    mError("table:%s, failed to get vgroup", pTable->tableId);
-    mgmtSendSimpleResp(queueMsg->thandle, TSDB_CODE_INVALID_VGROUP_ID);
-    free(queueMsg);
-    return;
+  for (int32_t i = 0; i < pAlter->numOfCols; ++i) {
+    pAlter->schema[i].bytes = htons(pAlter->schema[i].bytes);
   }
 
-  if (pTable->type == TSDB_CHILD_TABLE) {
-    SSdbOperDesc oper = {
-      .type = SDB_OPER_TYPE_GLOBAL,
-      .table = tsChildTableSdb,
-      .pObj = pTable
-    };
-    int32_t code = sdbDeleteRow(&oper);
-    if (code != TSDB_CODE_SUCCESS) {
-      mError("table:%s, update ctables sdb error", pTable->tableId);
-      mgmtSendSimpleResp(queueMsg->thandle, TSDB_CODE_SDB_ERROR);
-      free(queueMsg);
-      return;
-    }
-  } else if (pTable->type == TSDB_NORMAL_TABLE){
-    SSdbOperDesc oper = {
-      .type = SDB_OPER_TYPE_GLOBAL,
-      .table = tsNormalTableSdb,
-      .pObj = pTable
-    };
-    int32_t code = sdbDeleteRow(&oper);
-    if (code != TSDB_CODE_SUCCESS) {
-      mError("table:%s, update ntables sdb error", pTable->tableId);
-      mgmtSendSimpleResp(queueMsg->thandle, TSDB_CODE_SDB_ERROR);
-      free(queueMsg);
-      return;
-    }
-  }
-
-  if (pVgroup->numOfTables <= 0) {
-    mPrint("vgroup:%d, all tables is dropped, drop vgroup", pVgroup->vgId);
-    mgmtDropVgroup(pVgroup, NULL);
+  if (pTable->type == TSDB_SUPER_TABLE) {
+    mTrace("table:%s, start to alter stable", pAlter->tableId);
+    mgmtAlterSuperTable(pMsg, (SSuperTableObj *)pTable);
+  } else {
+    mTrace("table:%s, start to alter ctable", pAlter->tableId);
+    mgmtAlterChildTable(pMsg, (SChildTableObj *)pTable);
   }
-
-  mgmtSendSimpleResp(queueMsg->thandle, TSDB_CODE_SUCCESS);
-  free(queueMsg);
-}
-
-static void mgmtProcessDropStableRsp(SRpcMsg *rpcMsg) {
- mTrace("drop stable rsp received, handle:%p code:%d", rpcMsg->handle, rpcMsg->code);
 }
 
-static void mgmtProcessTableCfgMsg(SRpcMsg *rpcMsg) {
-  if (mgmtCheckRedirect(rpcMsg->handle)) return;
-
-  SDMConfigTableMsg *pCfg = (SDMConfigTableMsg *) rpcMsg->pCont;
-  pCfg->dnode = htonl(pCfg->dnode);
-  pCfg->vnode = htonl(pCfg->vnode);
-  pCfg->sid   = htonl(pCfg->sid);
-  mTrace("dnode:%s, vnode:%d, sid:%d, receive table config msg", taosIpStr(pCfg->dnode), pCfg->vnode, pCfg->sid);
+static void mgmtProcessTableMetaMsg(SQueuedMsg *pMsg) {
+  SCMTableInfoMsg *pInfo = pMsg->pCont;
+  mTrace("table:%s, table meta msg is received from thandle:%p", pInfo->tableId, pMsg->thandle);
 
-  STableInfo *pTable = mgmtGetTableByPos(pCfg->dnode, pCfg->vnode, pCfg->sid);
-  if (pTable == NULL) {
-    mError("dnode:%s, vnode:%d, sid:%d, table not found", taosIpStr(pCfg->dnode), pCfg->vnode, pCfg->sid);
-    mgmtSendSimpleResp(rpcMsg->handle, TSDB_CODE_NOT_ACTIVE_TABLE);
+  pMsg->pDb = mgmtGetDbByTableId(pInfo->tableId);
+  if (pMsg->pDb == NULL || pMsg->pDb->dirty) {
+    mError("table:%s, failed to get table meta, db not selected", pInfo->tableId);
+    mgmtSendSimpleResp(pMsg->thandle, TSDB_CODE_DB_NOT_SELECTED);
     return;
   }
 
-  mgmtSendSimpleResp(rpcMsg->handle, TSDB_CODE_SUCCESS);
-
-  SMDCreateTableMsg *pMDCreate = NULL;
-  if (pTable->type == TSDB_CHILD_TABLE) {
-    mTrace("table:%s, is a child table, vgroup:%d sid:%d", pTable->tableId, pCfg->vnode, pCfg->sid);
-    pMDCreate = mgmtBuildCreateChildTableMsg(NULL, (SChildTableObj *) pTable);
-    if (pMDCreate == NULL) {
-      return;
-    }
-  } else if (pTable->type == TSDB_NORMAL_TABLE) {
-    mTrace("table:%s, is a normal table, vgroup:%d sid:%d", pTable->tableId, pCfg->vnode, pCfg->sid);
-    pMDCreate = mgmtBuildCreateNormalTableMsg((SNormalTableObj *) pTable);
-    if (pMDCreate == NULL) {
-      return;
-    }
+  STableInfo *pTable = mgmtGetTable(pInfo->tableId);
+  if (pTable == NULL || pTable->type != TSDB_SUPER_TABLE) {
+    mgmtGetChildTableMeta(pMsg, (SChildTableObj *)pTable);
   } else {
-    mError("table:%s, invalid msg type, vgroup:%d sid:%d", pTable->tableId, pCfg->vnode, pCfg->sid);
+    mgmtGetSuperTableMeta(pMsg, (SSuperTableObj *)pTable);
   }
-
-  SRpcIpSet ipSet = mgmtGetIpSetFromIp(pCfg->dnode);
+}
\ No newline at end of file
-  SRpcMsg rpcRsp = {
-      .handle  = NULL,
-      .pCont   = pMDCreate,
-      .contLen = htonl(pMDCreate->contLen),
-      .code    = 0,
-      .msgType = TSDB_MSG_TYPE_MD_CREATE_TABLE
-  };
-  mgmtSendMsgToDnode(&ipSet, &rpcRsp);
-}

src/mnode/src/mgmtUser.c

@@ -25,14 +25,14 @@
 #include "mgmtShell.h"
 #include "mgmtUser.h"
 
-void *tsUserSdb = NULL;
+static void   *tsUserSdb = NULL;
 static int32_t tsUserUpdateSize = 0;
 
-static int32_t   mgmtCreateUser(SAcctObj *pAcct, char *name, char *pass);
-static int32_t   mgmtDropUser(SAcctObj *pAcct, char *name);
-static int32_t   mgmtUpdateUser(SUserObj *pUser);
-static int32_t   mgmtGetUserMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn);
-static int32_t   mgmtRetrieveUsers(SShowObj *pShow, char *data, int32_t rows, void *pConn);
+static int32_t mgmtCreateUser(SAcctObj *pAcct, char *name, char *pass);
+static int32_t mgmtDropUser(SAcctObj *pAcct, char *name);
+static int32_t mgmtUpdateUser(SUserObj *pUser);
+static int32_t mgmtGetUserMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn);
+static int32_t mgmtRetrieveUsers(SShowObj *pShow, char *data, int32_t rows, void *pConn);
 
 static void mgmtProcessCreateUserMsg(SQueuedMsg *pMsg);
 static void mgmtProcessAlterUserMsg(SQueuedMsg *pMsg);
@@ -231,7 +231,7 @@ static int32_t mgmtDropUser(SAcctObj *pAcct, char *name) {
 }
 
 static int32_t mgmtGetUserMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn) {
-  SUserObj *pUser = mgmtGetUserFromConn(pConn);
+  SUserObj *pUser = mgmtGetUserFromConn(pConn, NULL);
   if (pUser == NULL) {
     return TSDB_CODE_INVALID_USER;
   }
@@ -310,9 +310,12 @@ static int32_t mgmtRetrieveUsers(SShowObj *pShow, char *data, int32_t rows, void
   return numOfRows;
 }
 
-SUserObj *mgmtGetUserFromConn(void *pConn) {
+SUserObj *mgmtGetUserFromConn(void *pConn, bool *usePublicIp) {
   SRpcConnInfo connInfo;
   if (rpcGetConnInfo(pConn, &connInfo) == 0) {
+    if (usePublicIp) {
+      *usePublicIp = (connInfo.serverIp == tsPublicIpInt);
+    }
     return mgmtGetUser(connInfo.user);
   }
 

src/mnode/src/mgmtVgroup.c

@@ -20,10 +20,12 @@
 #include "tstatus.h"
 #include "mnode.h"
 #include "mgmtBalance.h"
+#include "mgmtChildTable.h"
 #include "mgmtDb.h"
 #include "mgmtDClient.h"
 #include "mgmtDnode.h"
 #include "mgmtDServer.h"
+#include "mgmtMnode.h"
 #include "mgmtProfile.h"
 #include "mgmtSdb.h"
 #include "mgmtShell.h"
@@ -66,8 +68,8 @@ static int32_t mgmtVgroupActionInsert(SSdbOperDesc *pOper) {
   pVgroup->prev = NULL;
   pVgroup->next = NULL;
 
-  int32_t size = sizeof(STableInfo *) * pDb->cfg.maxSessions;
-  pVgroup->tableList = (STableInfo **)calloc(pDb->cfg.maxSessions, sizeof(STableInfo *));
+  int32_t size = sizeof(SChildTableObj *) * pDb->cfg.maxSessions;
+  pVgroup->tableList = calloc(pDb->cfg.maxSessions, sizeof(SChildTableObj *));
   if (pVgroup->tableList == NULL) {
     mError("vgroup:%d, failed to malloc(size:%d) for the tableList of vgroups", pVgroup->vgId, size);
     return -1;
@@ -111,8 +113,8 @@ static int32_t mgmtVgroupActionUpdate(SSdbOperDesc *pOper) {
     if (pDb->cfg.maxSessions != oldTables) {
       mPrint("vgroup:%d tables change from %d to %d", pVgroup->vgId, oldTables, pDb->cfg.maxSessions);
       taosUpdateIdPool(pVgroup->idPool, pDb->cfg.maxSessions);
-      int32_t size = sizeof(STableInfo *) * pDb->cfg.maxSessions;
-      pVgroup->tableList = (STableInfo **)realloc(pVgroup->tableList, size);
+      int32_t size = sizeof(SChildTableObj *) * pDb->cfg.maxSessions;
+      pVgroup->tableList = (SChildTableObj **)realloc(pVgroup->tableList, size);
     }
   }
 
@@ -276,9 +278,9 @@ int32_t mgmtGetVgroupMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn) {
 
   int32_t maxReplica = 0;
   SVgObj  *pVgroup   = NULL;
-  STableInfo *pTable = NULL;
+  SChildTableObj *pTable = NULL;
   if (pShow->payloadLen > 0 ) {
-    pTable = mgmtGetTable(pShow->payload);
+    pTable = mgmtGetChildTable(pShow->payload);
     if (NULL == pTable) {
       return TSDB_CODE_INVALID_TABLE_ID;
     }
@@ -428,7 +430,7 @@ int32_t mgmtRetrieveVgroups(SShowObj *pShow, char *data, int32_t rows, void *pCo
   return numOfRows;
 }
 
-void mgmtAddTableIntoVgroup(SVgObj *pVgroup, STableInfo *pTable) {
+void mgmtAddTableIntoVgroup(SVgObj *pVgroup, SChildTableObj *pTable) {
   if (pTable->sid >= 0 && pVgroup->tableList[pTable->sid] == NULL) {
     pVgroup->tableList[pTable->sid] = pTable;
     taosIdPoolMarkStatus(pVgroup->idPool, pTable->sid);
@@ -439,7 +441,7 @@ void mgmtAddTableIntoVgroup(SVgObj *pVgroup, STableInfo *pTable) {
     mgmtAddVgroupIntoDbTail(pVgroup);
 }
 
-void mgmtRemoveTableFromVgroup(SVgObj *pVgroup, STableInfo *pTable) {
+void mgmtRemoveTableFromVgroup(SVgObj *pVgroup, SChildTableObj *pTable) {
   if (pTable->sid >= 0 && pVgroup->tableList[pTable->sid] != NULL) {
     pVgroup->tableList[pTable->sid] = NULL;
     taosFreeId(pVgroup->idPool, pTable->sid);
@@ -482,20 +484,6 @@ SMDCreateVnodeMsg *mgmtBuildCreateVnodeMsg(SVgObj *pVgroup) {
   return pVnode;
 }
 
-SVgObj *mgmtGetVgroupByVnode(uint32_t dnode, int32_t vnode) {
-  if (vnode < 0 || vnode >= TSDB_MAX_VNODES) {
-    return NULL;
-  }
-
-  SDnodeObj *pDnode = mgmtGetDnode(dnode);
-  if (pDnode == NULL) {
-    return NULL;
-  }
-
-  int32_t vgId = pDnode->vload[vnode].vgId;
-  return mgmtGetVgroup(vgId);
-}
-
 SRpcIpSet mgmtGetIpSetFromVgroup(SVgObj *pVgroup) {
   SRpcIpSet ipSet = {
     .numOfIps = pVgroup->numOfVnodes,
@@ -659,19 +647,26 @@ static void mgmtProcessVnodeCfgMsg(SRpcMsg *rpcMsg) {
   if (mgmtCheckRedirect(rpcMsg->handle)) return;
 
   SDMConfigVnodeMsg *pCfg = (SDMConfigVnodeMsg *) rpcMsg->pCont;
-  pCfg->dnode = htonl(pCfg->dnode);
-  pCfg->vnode = htonl(pCfg->vnode);
+  pCfg->dnodeId = htonl(pCfg->dnodeId);
+  pCfg->vgId    = htonl(pCfg->vgId);
+
+  SDnodeObj *pDnode = mgmtGetDnode(pCfg->dnodeId);
+  if (pDnode == NULL) {
+    mTrace("dnode:%s, invalid dnode", taosIpStr(pCfg->dnodeId), pCfg->vgId);
+    mgmtSendSimpleResp(rpcMsg->handle, TSDB_CODE_NOT_ACTIVE_VNODE);
+    return;
+  }
 
-  SVgObj *pVgroup = mgmtGetVgroupByVnode(pCfg->dnode, pCfg->vnode);
+  SVgObj *pVgroup = mgmtGetVgroup(pCfg->vgId);
   if (pVgroup == NULL) {
-    mTrace("dnode:%s, vnode:%d, no vgroup info", taosIpStr(pCfg->dnode), pCfg->vnode);
+    mTrace("dnode:%s, vgId:%d, no vgroup info", taosIpStr(pCfg->dnodeId), pCfg->vgId);
     mgmtSendSimpleResp(rpcMsg->handle, TSDB_CODE_NOT_ACTIVE_VNODE);
     return;
   }
 
   mgmtSendSimpleResp(rpcMsg->handle, TSDB_CODE_SUCCESS);
 
-  SRpcIpSet ipSet = mgmtGetIpSetFromIp(pCfg->dnode);
+  SRpcIpSet ipSet = mgmtGetIpSetFromIp(pDnode->privateIp);
   mgmtSendCreateVnodeMsg(pVgroup, &ipSet, NULL);
 }
 

src/rpc/src/rpcMain.c

@@ -363,7 +363,7 @@ void rpcSendRequest(void *shandle, SRpcIpSet *pIpSet, SRpcMsg *pMsg) {
   // for TDengine, all the query, show commands shall have TCP connection
   char type = pMsg->msgType;
   if (type == TSDB_MSG_TYPE_QUERY || type == TSDB_MSG_TYPE_RETRIEVE ||
-      type == TSDB_MSG_TYPE_CM_STABLE_META || type == TSDB_MSG_TYPE_CM_TABLES_META ||
+      type == TSDB_MSG_TYPE_CM_STABLE_VGROUP || type == TSDB_MSG_TYPE_CM_TABLES_META ||
       type == TSDB_MSG_TYPE_CM_SHOW )
     pContext->connType = RPC_CONN_TCPC;