create super table

src/client/src/tscAst.c

@@ -139,7 +139,7 @@ static tSQLSyntaxNode *tSQLSyntaxNodeCreate(SSchema *pSchema, int32_t numOfCols,
     } else {
       pNode->colId = -1;
       pNode->pSchema->type = TSDB_DATA_TYPE_BINARY;
-      pNode->pSchema->bytes = TSDB_METER_NAME_LEN;
+      pNode->pSchema->bytes = TSDB_TABLE_NAME_LEN;
       strcpy(pNode->pSchema->name, TSQL_TBNAME_L);
       pNode->pSchema->colId = -1;
     }

src/client/src/tscLocal.c

@@ -293,7 +293,7 @@ static int tscBuildMetricTagProjectionResult(SSqlObj *pSql) {
   for (int32_t f = 1; f < pMeterMetaInfo->numOfTags; ++f) {
     int16_t tagColumnIndex = pMeterMetaInfo->tagColumnIndex[f - 1];
     if (tagColumnIndex == -1) {
-      vOffset[f] = vOffset[f - 1] + TSDB_METER_NAME_LEN;
+      vOffset[f] = vOffset[f - 1] + TSDB_TABLE_NAME_LEN;
     } else {
       vOffset[f] = vOffset[f - 1] + pSchema[tagColumnIndex].bytes;
     }

src/client/src/tscSQLParser.c

@@ -363,7 +363,7 @@ int32_t tscToSQLCmd(SSqlObj* pSql, struct SSqlInfo* pInfo) {
         return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
       }
 
-      if (pToken->n > TSDB_METER_NAME_LEN) {
+      if (pToken->n > TSDB_TABLE_NAME_LEN) {
         return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
       }
 
@@ -1054,12 +1054,12 @@ int32_t setObjFullName(char* fullName, const char* account, SSQLToken* pDB, SSQL
       totalLen += 1;
 
       /* here we only check the table name length limitation */
-      if (tableName->n > TSDB_METER_NAME_LEN) {
+      if (tableName->n > TSDB_TABLE_NAME_LEN) {
         return TSDB_CODE_INVALID_SQL;
       }
     } else {  // pDB == NULL, the db prefix name is specified in tableName
       /* the length limitation includes tablename + dbname + sep */
-      if (tableName->n > TSDB_METER_NAME_LEN + TSDB_DB_NAME_LEN + tListLen(TS_PATH_DELIMITER)) {
+      if (tableName->n > TSDB_TABLE_NAME_LEN + TSDB_DB_NAME_LEN + tListLen(TS_PATH_DELIMITER)) {
         return TSDB_CODE_INVALID_SQL;
       }
     }
@@ -1361,7 +1361,7 @@ int32_t addProjectionExprAndResultField(SQueryInfo* pQueryInfo, tSQLExprItem* pI
     }
 
     if (index.columnIndex == TSDB_TBNAME_COLUMN_INDEX) {
-      SSchema colSchema = {.type = TSDB_DATA_TYPE_BINARY, .bytes = TSDB_METER_NAME_LEN};
+      SSchema colSchema = {.type = TSDB_DATA_TYPE_BINARY, .bytes = TSDB_TABLE_NAME_LEN};
       strcpy(colSchema.name, TSQL_TBNAME_L);
 
       pQueryInfo->type = TSDB_QUERY_TYPE_STABLE_QUERY;
@@ -2085,7 +2085,7 @@ int32_t setShowInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
         return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg6);
       }
 
-      if (pCmd->payloadLen > TSDB_METER_NAME_LEN) {
+      if (pCmd->payloadLen > TSDB_TABLE_NAME_LEN) {
         return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
       }
     }
@@ -2679,7 +2679,7 @@ static int32_t tablenameListToString(tSQLExpr* pExpr, /*char* str*/ SStringBuild
       taosStringBuilderAppendString(sb, TBNAME_LIST_SEP);
     }
 
-    if (pSub->val.nLen <= 0 || pSub->val.nLen > TSDB_METER_NAME_LEN) {
+    if (pSub->val.nLen <= 0 || pSub->val.nLen > TSDB_TABLE_NAME_LEN) {
       return TSDB_CODE_INVALID_SQL;
     }
   }
@@ -4951,7 +4951,7 @@ static int32_t doAddGroupbyColumnsOnDemand(SQueryInfo* pQueryInfo) {
     int16_t colIndex = pColIndex->colIdx;
     if (pColIndex->colIdx == TSDB_TBNAME_COLUMN_INDEX) {
       type = TSDB_DATA_TYPE_BINARY;
-      bytes = TSDB_METER_NAME_LEN;
+      bytes = TSDB_TABLE_NAME_LEN;
       name = TSQL_TBNAME_L;
     } else {
       colIndex = (TSDB_COL_IS_TAG(pColIndex->flag)) ? pMeterMetaInfo->pMeterMeta->numOfColumns + pColIndex->colIdx

src/client/src/tscSchemaUtil.c

@@ -84,7 +84,7 @@ struct SSchema* tsGetColumnSchema(STableMeta* pMeta, int32_t startCol) {
 }
 
 struct SSchema tsGetTbnameColumnSchema() {
-  struct SSchema s = {.colId = TSDB_TBNAME_COLUMN_INDEX, .type = TSDB_DATA_TYPE_BINARY, .bytes = TSDB_METER_NAME_LEN};
+  struct SSchema s = {.colId = TSDB_TBNAME_COLUMN_INDEX, .type = TSDB_DATA_TYPE_BINARY, .bytes = TSDB_TABLE_NAME_LEN};
   strcpy(s.name, TSQL_TBNAME_L);
   
   return s;

src/client/src/tscServer.c

@@ -1575,7 +1575,7 @@ int tscBuildQueryMsg(SSqlObj *pSql, SSqlInfo *pInfo) {
     for (int32_t j = 0; j < pMeterMetaInfo->numOfTags; ++j) {
       if (pMeterMetaInfo->tagColumnIndex[j] == TSDB_TBNAME_COLUMN_INDEX) {
         SSchema tbSchema = {
-            .bytes = TSDB_METER_NAME_LEN, .colId = TSDB_TBNAME_COLUMN_INDEX, .type = TSDB_DATA_TYPE_BINARY};
+            .bytes = TSDB_TABLE_NAME_LEN, .colId = TSDB_TBNAME_COLUMN_INDEX, .type = TSDB_DATA_TYPE_BINARY};
         memcpy(pMsg, &tbSchema, sizeof(SSchema));
       } else {
         memcpy(pMsg, &pTagSchema[pMeterMetaInfo->tagColumnIndex[j]], sizeof(SSchema));

src/inc/mnode.h

@@ -101,40 +101,8 @@ typedef struct {
   int32_t vgId;  // vnode group ID
 } STableGid;
 
-typedef struct _tab_obj {
-  char      tableId[TSDB_TABLE_ID_LEN + 1];
-  uint64_t  uid;
-  STableGid gid;
-
-  int32_t sversion;     // schema version
-  int64_t createdTime;
-  int32_t numOfTags;    // for metric
-  int32_t numOfTables;  // for metric
-  int32_t numOfColumns;
-  int32_t schemaSize;
-  short   nextColId;
-  char    tableType : 4;
-  char    status : 3;
-  char    isDirty : 1;  // if the table change tag column 1 value
-  char    reserved[15];
-  char    updateEnd[1];
-
-  pthread_rwlock_t rwLock;
-  tSkipList *      pSkipList;
-  struct _tab_obj *pHead;  // for metric, a link list for all meters created
-                           // according to this metric
-  char *pTagData;          // TSDB_TABLE_ID_LEN(metric_name)+
-                           // tags_value1/tags_value2/tags_value3
-  struct _tab_obj *prev, *next;
-  char *           pSql;   // pointer to SQL, for SC, null-terminated string
-  char *           pReserve1;
-  char *           pReserve2;
-  char *           schema;
-  // SSchema    schema[];
-} STabObj;
-
 typedef struct {
-  char     tableId[TSDB_TABLE_ID_LEN + 1];
+  char     tableId[TSDB_TABLE_ID_LEN];
   int8_t   type;
   uint64_t uid;
   int32_t  sid;
@@ -142,38 +110,40 @@ typedef struct {
   int64_t  createdTime;
 } STableInfo;
 
+struct _vg_obj;
+
 typedef struct SSuperTableObj {
-  char     tableId[TSDB_TABLE_ID_LEN + 1];
+  char     tableId[TSDB_TABLE_ID_LEN];
   int8_t   type;
   uint64_t uid;
   int32_t  sid;
   int32_t  vgId;
   int64_t  createdTime;
   int32_t  sversion;
-  int32_t  numOfTables;
   int32_t  numOfColumns;
   int32_t  numOfTags;
   int8_t   reserved[7];
   int8_t   updateEnd[1];
+  int32_t  numOfTables;
   int16_t  nextColId;
   SSchema *schema;
 } SSuperTableObj;
 
 typedef struct {
-  char     tableId[TSDB_TABLE_ID_LEN + 1];
+  char     tableId[TSDB_TABLE_ID_LEN];
   int8_t   type;
   uint64_t uid;
   int32_t  sid;
   int32_t  vgId;
   int64_t  createdTime;
-  char     superTableId[TSDB_TABLE_ID_LEN + 1];
+  char     superTableId[TSDB_TABLE_ID_LEN];
   int8_t   reserved[7];
   int8_t   updateEnd[1];
   SSuperTableObj *superTable;
 } SChildTableObj;
 
 typedef struct {
-  char     tableId[TSDB_TABLE_ID_LEN + 1];
+  char     tableId[TSDB_TABLE_ID_LEN];
   int8_t   type;
   uint64_t uid;
   int32_t  sid;
@@ -188,7 +158,7 @@ typedef struct {
 } SNormalTableObj;
 
 typedef struct {
-  char     tableId[TSDB_TABLE_ID_LEN + 1];
+  char     tableId[TSDB_TABLE_ID_LEN];
   int8_t   type;
   uint64_t uid;
   int32_t  sid;
@@ -224,23 +194,19 @@ typedef struct _vg_obj {
 } SVgObj;
 
 typedef struct _db_obj {
-  /*
-   * this length will cause the storage structure to change, rollback
-   */
-  char    name[TSDB_DB_NAME_LEN + 1];
+  char    name[TSDB_DB_NAME_LEN];
   int64_t createdTime;
   SDbCfg  cfg;
-  int32_t numOfVgroups;
-  int32_t numOfTables;
-  int32_t numOfMetrics;
-  uint8_t vgStatus;
-  uint8_t dropStatus;
+  int8_t  dropStatus;
   char    reserved[16];
   char    updateEnd[1];
-
   struct _db_obj *prev, *next;
-  SVgObj *        pHead;  // empty vgroup first
-  SVgObj *        pTail;  // empty vgroup end
+  int32_t numOfVgroups;
+  int32_t numOfTables;
+  int32_t numOfSuperTables;
+  int32_t vgStatus;
+  SVgObj *pHead;  // empty vgroup first
+  SVgObj *pTail;  // empty vgroup end
   void *  vgTimer;
 } SDbObj;
 

src/inc/taosdef.h

@@ -86,7 +86,7 @@ extern "C" {
 #define TS_PATH_DELIMITER_LEN     1
 
 #define TSDB_METER_ID_LEN_MARGIN  10
-#define TSDB_TABLE_ID_LEN         (TSDB_DB_NAME_LEN+TSDB_METER_NAME_LEN+2*TS_PATH_DELIMITER_LEN+TSDB_USERID_LEN+TSDB_METER_ID_LEN_MARGIN) //TSDB_DB_NAME_LEN+TSDB_METER_NAME_LEN+2*strlen(TS_PATH_DELIMITER)+strlen(USERID)
+#define TSDB_TABLE_ID_LEN         (TSDB_DB_NAME_LEN+TSDB_TABLE_NAME_LEN+2*TS_PATH_DELIMITER_LEN+TSDB_USERID_LEN+TSDB_METER_ID_LEN_MARGIN) //TSDB_DB_NAME_LEN+TSDB_TABLE_NAME_LEN+2*strlen(TS_PATH_DELIMITER)+strlen(USERID)
 #define TSDB_UNI_LEN              24
 #define TSDB_USER_LEN             TSDB_UNI_LEN
 #define TSDB_ACCT_LEN             TSDB_UNI_LEN
@@ -95,7 +95,7 @@ extern "C" {
 #define TSDB_MAX_COLUMNS          256
 #define TSDB_MIN_COLUMNS          2       //PRIMARY COLUMN(timestamp) + other columns
 
-#define TSDB_METER_NAME_LEN       64
+#define TSDB_TABLE_NAME_LEN       64
 #define TSDB_DB_NAME_LEN          32
 #define TSDB_COL_NAME_LEN         64
 #define TSDB_MAX_SAVED_SQL_LEN    TSDB_MAX_COLUMNS * 16

src/kit/taosdump/taosdump.c

@@ -116,8 +116,8 @@ typedef struct {
 } SDbInfo;
 
 typedef struct {
-  char name[TSDB_METER_NAME_LEN + 1];
-  char metric[TSDB_METER_NAME_LEN + 1];
+  char name[TSDB_TABLE_NAME_LEN + 1];
+  char metric[TSDB_TABLE_NAME_LEN + 1];
 } STableRecord;
 
 typedef struct {

src/mnode/inc/mgmtDb.h

@@ -42,6 +42,11 @@ int32_t mgmtDropDbByName(SAcctObj *pAcct, char *name, short ignoreNotExists);
 int32_t mgmtDropDb(SDbObj *pDb);
 bool    mgmtCheckIsMonitorDB(char *db, char *monitordb);
 
+void mgmtAddSuperTableIntoDb(SDbObj *pDb);
+void mgmtRemoveSuperTableFromDb(SDbObj *pDb);
+void mgmtAddTableIntoDb(SDbObj *pDb);
+void mgmtRemoveTableFromDb(SDbObj *pDb);
+
 #ifdef __cplusplus
 }
 #endif

src/mnode/src/mgmtChildTable.c

@@ -221,6 +221,8 @@ int32_t mgmtInitChildTables() {
       pNode = pLastNode;
       continue;
     }
+
+    mgmtAddTableIntoDb(pDb);
   }
 
   mgmtSetVgroupIdPool();
@@ -305,12 +307,12 @@ int32_t mgmtCreateChildTable(SDbObj *pDb, SCreateTableMsg *pCreate, SVgObj *pVgr
   }
 
   mgmtAddTimeSeries(pTable->superTable->numOfColumns - 1);
-
   mgmtSendCreateTableMsg(pTable, pVgroup);
 
   mTrace("table:%s, create table in vgroup, vgId:%d sid:%d vnode:%d uid:%" PRIu64 " db:%s",
          pTable->tableId, pVgroup->vgId, sid, pVgroup->vnodeGid[0].vnode, pTable->uid, pDb->name);
 
+  mgmtAddTableIntoDb(pDb);
   return 0;
 }
 
@@ -337,6 +339,7 @@ int32_t mgmtDropChildTable(SDbObj *pDb, SChildTableObj *pTable) {
     mgmtDropVgroup(pDb, pVgroup);
   }
 
+  mgmtRemoveTableFromDb(pDb);
   return 0;
 }
 

src/mnode/src/mgmtConn.c

@@ -70,7 +70,7 @@ int mgmtGetConns(SShowObj *pShow, void *pConn) {
 int mgmtGetConnsMeta(STableMeta *pMeta, SShowObj *pShow, void *pConn) {
   int cols = 0;
 
-  pShow->bytes[cols] = TSDB_METER_NAME_LEN;
+  pShow->bytes[cols] = TSDB_TABLE_NAME_LEN;
   SSchema *pSchema = tsGetSchema(pMeta);
 
   pSchema[cols].type = TSDB_DATA_TYPE_BINARY;

src/mnode/src/mgmtDb.c

@@ -86,7 +86,7 @@ int32_t mgmtInitDbs() {
     pDb->next = NULL;
     pDb->numOfTables = 0;
     pDb->numOfVgroups = 0;
-    pDb->numOfMetrics = 0;
+    pDb->numOfSuperTables = 0;
     pDb->vgStatus = TSDB_VG_STATUS_READY;
     pDb->vgTimer = NULL;
     pAcct = mgmtGetAcct(pDb->cfg.acct);
@@ -853,3 +853,18 @@ void *mgmtDbActionDestroy(void *row, char *str, int32_t size, int32_t *ssize) {
   tfree(row);
   return NULL;
 }
+
+void mgmtAddSuperTableIntoDb(SDbObj *pDb) {
+  atomic_add_fetch_32(&pDb->numOfSuperTables, 1);
+}
+
+void mgmtRemoveSuperTableFromDb(SDbObj *pDb) {
+  atomic_add_fetch_32(&pDb->numOfSuperTables, -1);
+}
+void mgmtAddTableIntoDb(SDbObj *pDb) {
+  atomic_add_fetch_32(&pDb->numOfTables, 1);
+}
+
+void mgmtRemoveTableFromDb(SDbObj *pDb) {
+  atomic_add_fetch_32(&pDb->numOfTables, -1);
+}

src/mnode/src/mgmtDnodeInt.c

@@ -37,7 +37,7 @@
 void  mgmtProcessMsgFromDnode(int8_t *pCont, int32_t contLen, int32_t msgType, void *pConn);
 int   mgmtSendVPeersMsg(SVgObj *pVgroup);
 char *mgmtBuildVpeersIe(char *pMsg, SVgObj *pVgroup, int vnode);
-char *mgmtBuildCreateMeterIe(STabObj *pTable, char *pMsg, int vnode);
+//char *mgmtBuildCreateMeterIe(STabObj *pTable, char *pMsg, int vnode);
 extern void *tsDnodeMgmtQhandle;
 void * mgmtStatusTimer = NULL;
 
@@ -323,7 +323,7 @@ int mgmtSendRemoveMeterMsgToDnode(STableInfo *pTable, SVgObj *pVgroup) {
   return 0;
 }
 
-int mgmtSendAlterStreamMsgToDnode(STabObj *pTable, SVgObj *pVgroup) {
+int mgmtSendAlterStreamMsgToDnode(void *pTable, SVgObj *pVgroup) {
 //  SAlterStreamMsg *pAlter;
 //  char *           pMsg, *pStart;
 //  int              i, msgLen = 0;

src/mnode/src/mgmtNormalTable.c

@@ -236,6 +236,7 @@ int32_t mgmtInitNormalTables() {
       pNode = pLastNode;
       continue;
     }
+    mgmtAddTableIntoDb(pDb);
   }
 
   mgmtSetVgroupIdPool();
@@ -326,6 +327,7 @@ int32_t mgmtCreateNormalTable(SDbObj *pDb, SCreateTableMsg *pCreate, SVgObj *pVg
              " db:%s",
          pTable->tableId, pVgroup->vgId, sid, pVgroup->vnodeGid[0].vnode, pTable->uid, pDb->name);
 
+  mgmtAddTableIntoDb(pDb);
   return 0;
 }
 
@@ -354,6 +356,7 @@ int32_t mgmtDropNormalTable(SDbObj *pDb, SNormalTableObj *pTable) {
     mgmtDropVgroup(pDb, pVgroup);
   }
 
+  mgmtRemoveTableFromDb(pDb);
   return 0;
 }
 

src/mnode/src/mgmtShell.c

@@ -688,7 +688,7 @@ int32_t mgmtProcessShowMsg(void *pCont, int32_t contLen, void *ahandle) {
     SShowObj *pShow = (SShowObj *) calloc(1, sizeof(SShowObj) + htons(pShowMsg->payloadLen));
     pShow->signature = pShow;
     pShow->type      = pShowMsg->type;
-    strcpy(pShow->db, pShow->db);
+    strcpy(pShow->db, pShowMsg->db);
     mTrace("pShow:%p is allocated", pShow);
 
     // set the table name query condition
@@ -805,20 +805,12 @@ int32_t mgmtProcessCreateTableMsg(void *pCont, int32_t contLen, void *ahandle) {
     SDbObj *pDb = mgmtGetDb(pCreate->db);
     if (pDb) {
       code = mgmtCreateTable(pDb, pCreate);
-      if (code == TSDB_CODE_TABLE_ALREADY_EXIST) {
-        if (pCreate->igExists) {
-          code = TSDB_CODE_SUCCESS;
-        }
-      }
     } else {
       code = TSDB_CODE_DB_NOT_SELECTED;
     }
   }
 
-  if (code != TSDB_CODE_SUCCESS) {
-    rpcSendResponse(ahandle, TSDB_CODE_SUCCESS, NULL, 0);
-  }
-
+  rpcSendResponse(ahandle, code, NULL, 0);
   return code;
 }
 

src/mnode/src/mgmtStreamTable.c

@@ -190,7 +190,7 @@ void *mgmtStreamTableActionDecode(void *row, char *str, int32_t size, int32_t *s
   if (pTable == NULL) {
     return NULL;
   }
-  memset(pTable, 0, sizeof(STabObj));
+  memset(pTable, 0, sizeof(SStreamTableObj));
 
   int32_t tsize = pTable->updateEnd - (int8_t *)pTable;
   if (size < tsize) {
@@ -251,6 +251,7 @@ int32_t mgmtInitStreamTables() {
       pNode = pLastNode;
       continue;
     }
+    mgmtAddTableIntoDb(pDb);
   }
 
   mgmtSetVgroupIdPool();
@@ -348,6 +349,7 @@ int32_t mgmtCreateStreamTable(SDbObj *pDb, SCreateTableMsg *pCreate, SVgObj *pVg
              " db:%s",
          pTable->tableId, pVgroup->vgId, sid, pVgroup->vnodeGid[0].vnode, pTable->uid, pDb->name);
 
+  mgmtAddTableIntoDb(pDb);
   return 0;
 }
 
@@ -376,6 +378,7 @@ int32_t mgmtDropStreamTable(SDbObj *pDb, SStreamTableObj *pTable) {
     mgmtDropVgroup(pDb, pVgroup);
   }
 
+  mgmtRemoveTableFromDb(pDb);
   return 0;
 }
 

src/mnode/src/mgmtSuperTable.c

@@ -34,9 +34,11 @@
 #include "mgmtGrant.h"
 #include "mgmtSuperTable.h"
 #include "mgmtTable.h"
+#include "mgmtUser.h"
 #include "mgmtVgroup.h"
 
 void *tsSuperTableSdb;
+int32_t tsSuperTableUpdateSize;
 void *(*mgmtSuperTableActionFp[SDB_MAX_ACTION_TYPES])(void *row, char *str, int32_t size, int32_t *ssize);
 
 void *mgmtSuperTableActionInsert(void *row, char *str, int32_t size, int32_t *ssize);
@@ -64,12 +66,11 @@ static void mgmtSuperTableActionInit() {
 
 void *mgmtSuperTableActionReset(void *row, char *str, int32_t size, int32_t *ssize) {
   SSuperTableObj *pTable = (SSuperTableObj *) row;
-  int32_t tsize = pTable->updateEnd - (int8_t *) pTable;
-  memcpy(pTable, str, tsize);
+  memcpy(pTable, str, tsDbUpdateSize);
 
   int32_t schemaSize = sizeof(SSchema) * (pTable->numOfColumns + pTable->numOfTags);
   pTable->schema = realloc(pTable->schema, schemaSize);
-  memcpy(pTable->schema, str + tsize, schemaSize);
+  memcpy(pTable->schema, str + tsDbUpdateSize, schemaSize);
 
   return NULL;
 }
@@ -96,17 +97,16 @@ void *mgmtSuperTableActionEncode(void *row, char *str, int32_t size, int32_t *ss
   SSuperTableObj *pTable = (SSuperTableObj *) row;
   assert(row != NULL && str != NULL);
 
-  int32_t tsize = pTable->updateEnd - (int8_t *) pTable;
   int32_t schemaSize = sizeof(SSchema) * (pTable->numOfColumns + pTable->numOfTags);
 
-  if (size < tsize + schemaSize + 1) {
+  if (size < tsSuperTableUpdateSize + schemaSize + 1) {
     *ssize = -1;
     return NULL;
   }
 
-  memcpy(str, pTable, tsize);
-  memcpy(str + tsize, pTable->schema, schemaSize);
-  *ssize = tsize + schemaSize;
+  memcpy(str, pTable, tsSuperTableUpdateSize);
+  memcpy(str + tsSuperTableUpdateSize, pTable->schema, schemaSize);
+  *ssize = tsSuperTableUpdateSize + schemaSize;
 
   return NULL;
 }
@@ -118,14 +118,13 @@ void *mgmtSuperTableActionDecode(void *row, char *str, int32_t size, int32_t *ss
   if (pTable == NULL) {
     return NULL;
   }
-  memset(pTable, 0, sizeof(STabObj));
+  memset(pTable, 0, sizeof(SSuperTableObj));
 
-  int32_t tsize = pTable->updateEnd - (int8_t *)pTable;
-  if (size < tsize) {
+  if (size < tsSuperTableUpdateSize) {
     mgmtDestroySuperTable(pTable);
     return NULL;
   }
-  memcpy(pTable, str, tsize);
+  memcpy(pTable, str, tsSuperTableUpdateSize);
 
   int32_t schemaSize = sizeof(SSchema) * (pTable->numOfColumns + pTable->numOfTags);
   pTable->schema = malloc(schemaSize);
@@ -134,7 +133,7 @@ void *mgmtSuperTableActionDecode(void *row, char *str, int32_t size, int32_t *ss
     return NULL;
   }
 
-  memcpy(pTable->schema, str + tsize, schemaSize);
+  memcpy(pTable->schema, str + tsSuperTableUpdateSize, schemaSize);
   return (void *)pTable;
 }
 
@@ -151,8 +150,10 @@ int32_t mgmtInitSuperTables() {
   SSuperTableObj * pTable = NULL;
 
   mgmtSuperTableActionInit();
+  SSuperTableObj tObj;
+  tsSuperTableUpdateSize = tObj.updateEnd - (int8_t *)&tObj;
 
-  tsSuperTableSdb = sdbOpenTable(tsMaxTables, sizeof(STabObj) + sizeof(SSchema) * TSDB_MAX_COLUMNS,
+  tsSuperTableSdb = sdbOpenTable(tsMaxTables, tsSuperTableUpdateSize + sizeof(SSchema) * TSDB_MAX_COLUMNS,
                           "stables", SDB_KEYTYPE_STRING, tsMgmtDirectory, mgmtSuperTableAction);
   if (tsSuperTableSdb == NULL) {
     mError("failed to init super table data");
@@ -173,7 +174,8 @@ int32_t mgmtInitSuperTables() {
       pNode = pLastNode;
       continue;
     }
-    pTable->numOfTables = 0;
+
+    mgmtAddSuperTableIntoDb(pDb);
   }
 
   mgmtSetVgroupIdPool();
@@ -183,6 +185,7 @@ int32_t mgmtInitSuperTables() {
 }
 
 void mgmtCleanUpSuperTables() {
+  sdbCloseTable(tsSuperTableSdb);
 }
 
 int32_t mgmtCreateSuperTable(SDbObj *pDb, SCreateTableMsg *pCreate) {
@@ -205,7 +208,6 @@ int32_t mgmtCreateSuperTable(SDbObj *pDb, SCreateTableMsg *pCreate) {
   pStable->sversion = 0;
   pStable->numOfColumns = pCreate->numOfColumns;
   pStable->numOfTags = pCreate->numOfTags;
-  pStable->numOfTables = 0;
 
   int32_t numOfCols = pCreate->numOfColumns + pCreate->numOfTags;
   int32_t schemaSize = numOfCols * sizeof(SSchema);
@@ -228,11 +230,14 @@ int32_t mgmtCreateSuperTable(SDbObj *pDb, SCreateTableMsg *pCreate) {
     return TSDB_CODE_SDB_ERROR;
   }
 
-  return 0;
+  mgmtAddSuperTableIntoDb(pDb);
+  return TSDB_CODE_SUCCESS;
 }
 
 int32_t mgmtDropSuperTable(SDbObj *pDb, SSuperTableObj *pSuperTable) {
   //TODO drop all child tables
+
+  mgmtRemoveSuperTableFromDb(pDb);
   return sdbDeleteRow(tsSuperTableSdb, pSuperTable);
 }
 
@@ -241,6 +246,7 @@ void* mgmtGetSuperTable(char *tableId) {
 }
 
 void *mgmtGetSuperTableVgroup(SSuperTableObj *pStable) {
+  //TODO get vgroup of dnodes
   SSuperTableInfoRsp *rsp = rpcMallocCont(sizeof(SSuperTableInfoRsp) + sizeof(uint32_t) * mgmtGetDnodesNum());
   rsp->numOfDnodes = 1;
   rsp->dnodeIps[0] = 0;
@@ -358,7 +364,7 @@ int32_t mgmtModifySuperTableTagNameByName(SSuperTableObj *pStable, char *oldTagN
   strncpy(schema->name, newTagName, TSDB_COL_NAME_LEN);
 
   // Encode string
-  int32_t  size = 1 + sizeof(STabObj) + TSDB_MAX_BYTES_PER_ROW;
+  int32_t  size = 1 + sizeof(SSuperTableObj) + TSDB_MAX_BYTES_PER_ROW;
   char *msg = (char *) malloc(size);
   if (msg == NULL) return TSDB_CODE_APP_ERROR;
   memset(msg, 0, size);
@@ -466,129 +472,122 @@ int32_t mgmtDropSuperTableColumnByName(SSuperTableObj *pStable, char *colName) {
 }
 
 int32_t mgmtGetShowSuperTableMeta(STableMeta *pMeta, SShowObj *pShow, void *pConn) {
-//  int32_t cols = 0;
-//
-//  SDbObj *pDb = NULL;
-//  if (pConn->pDb != NULL) pDb = mgmtGetDb(pConn->pDb->name);
-//
-//  if (pDb == NULL) return TSDB_CODE_DB_NOT_SELECTED;
-//
-//  SSchema *pSchema = tsGetSchema(pMeta);
-//
-//  pShow->bytes[cols] = TSDB_METER_NAME_LEN;
-//  pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
-//  strcpy(pSchema[cols].name, "name");
-//  pSchema[cols].bytes = htons(pShow->bytes[cols]);
-//  cols++;
-//
-//  pShow->bytes[cols] = 8;
-//  pSchema[cols].type = TSDB_DATA_TYPE_TIMESTAMP;
-//  strcpy(pSchema[cols].name, "created_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] = 2;
-//  pSchema[cols].type = TSDB_DATA_TYPE_SMALLINT;
-//  strcpy(pSchema[cols].name, "tags");
-//  pSchema[cols].bytes = htons(pShow->bytes[cols]);
-//  cols++;
-//
-//  pShow->bytes[cols] = 4;
-//  pSchema[cols].type = TSDB_DATA_TYPE_INT;
-//  strcpy(pSchema[cols].name, "tables");
-//  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->numOfMetrics;
-//  pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
+  SDbObj *pDb = mgmtGetDb(pShow->db);
+  if (pDb == NULL) {
+    return TSDB_CODE_DB_NOT_SELECTED;
+  }
+
+  int32_t cols = 0;
+  SSchema *pSchema = tsGetSchema(pMeta);
+
+  pShow->bytes[cols] = TSDB_TABLE_NAME_LEN;
+  pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
+  strcpy(pSchema[cols].name, "name");
+  pSchema[cols].bytes = htons(pShow->bytes[cols]);
+  cols++;
+
+  pShow->bytes[cols] = 8;
+  pSchema[cols].type = TSDB_DATA_TYPE_TIMESTAMP;
+  strcpy(pSchema[cols].name, "created_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] = 2;
+  pSchema[cols].type = TSDB_DATA_TYPE_SMALLINT;
+  strcpy(pSchema[cols].name, "tags");
+  pSchema[cols].bytes = htons(pShow->bytes[cols]);
+  cols++;
+
+  pShow->bytes[cols] = 4;
+  pSchema[cols].type = TSDB_DATA_TYPE_INT;
+  strcpy(pSchema[cols].name, "tables");
+  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->numOfSuperTables;
+  pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
 
   return 0;
 }
 
 int32_t mgmtRetrieveShowSuperTables(SShowObj *pShow, char *data, int32_t rows, void *pConn) {
   int32_t         numOfRows = 0;
-//  char *          pWrite;
-//  int32_t         cols = 0;
-//  SSuperTableObj *pTable = NULL;
-//  char            prefix[20] = {0};
-//  int32_t         prefixLen;
-//
-//  SDbObj *pDb = NULL;
-//  if (pConn->pDb != NULL) {
-//    pDb = mgmtGetDb(pConn->pDb->name);
-//  }
-//
-//  if (pDb == NULL) {
-//    return 0;
-//  }
-//
-//  if (mgmtCheckIsMonitorDB(pDb->name, tsMonitorDbName)) {
-//    if (strcmp(pConn->pUser->user, "root") != 0 && strcmp(pConn->pUser->user, "_root") != 0 && strcmp(pConn->pUser->user, "monitor") != 0 ) {
-//      return 0;
-//    }
-//  }
-//
-//  strcpy(prefix, pDb->name);
-//  strcat(prefix, TS_PATH_DELIMITER);
-//  prefixLen = strlen(prefix);
-//
-//  SPatternCompareInfo info = PATTERN_COMPARE_INFO_INITIALIZER;
-//  char metricName[TSDB_METER_NAME_LEN] = {0};
-//
-//  while (numOfRows < rows) {
-//    pTable = (SSuperTableObj *)pShow->pNode;
-//    if (pTable == NULL) break;
-//    //pShow->pNode = (void *)pTable->next;
-//
-//    if (strncmp(pTable->tableId, prefix, prefixLen)) {
-//      continue;
-//    }
-//
-//    memset(metricName, 0, tListLen(metricName));
-//    extractTableName(pTable->tableId, metricName);
-//
-//    if (pShow->payloadLen > 0 &&
-//        patternMatch(pShow->payload, metricName, TSDB_METER_NAME_LEN, &info) != TSDB_PATTERN_MATCH)
-//      continue;
-//
-//    cols = 0;
-//
-//    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-//    extractTableName(pTable->tableId, pWrite);
-//    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;
-//    *(int16_t *)pWrite = pTable->numOfColumns;
-//    cols++;
-//
-//    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-//    *(int16_t *)pWrite = pTable->numOfTags;
-//    cols++;
-//
-//    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-//    *(int32_t *)pWrite = pTable->numOfTables;
-//    cols++;
-//
-//    numOfRows++;
-//  }
-//
-//  pShow->numOfReads += numOfRows;
+  char *          pWrite;
+  int32_t         cols = 0;
+  SSuperTableObj *pTable = NULL;
+  char            prefix[20] = {0};
+  int32_t         prefixLen;
+
+  SDbObj *pDb = mgmtGetDb(pShow->db);
+  if (pDb == NULL) return 0;
+
+  SUserObj *pUser = mgmtGetUserFromConn(pConn);
+
+  if (mgmtCheckIsMonitorDB(pDb->name, tsMonitorDbName)) {
+    if (strcmp(pUser->user, "root") != 0 && strcmp(pUser->user, "_root") != 0 && strcmp(pUser->user, "monitor") != 0 ) {
+      return 0;
+    }
+  }
+
+  strcpy(prefix, pDb->name);
+  strcat(prefix, TS_PATH_DELIMITER);
+  prefixLen = strlen(prefix);
+
+  SPatternCompareInfo info = PATTERN_COMPARE_INFO_INITIALIZER;
+  char stableName[TSDB_TABLE_NAME_LEN] = {0};
+
+  while (numOfRows < rows) {
+    pShow->pNode = sdbFetchRow(tsSuperTableSdb, pShow->pNode, (void **) &pTable);
+    if (pTable == NULL) break;
+    if (strncmp(pTable->tableId, prefix, prefixLen)) {
+      continue;
+    }
+
+    memset(stableName, 0, tListLen(stableName));
+    extractTableName(pTable->tableId, stableName);
+
+    if (pShow->payloadLen > 0 &&
+        patternMatch(pShow->payload, stableName, TSDB_TABLE_NAME_LEN, &info) != TSDB_PATTERN_MATCH)
+      continue;
+
+    cols = 0;
+
+    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    strncpy(pWrite, stableName, 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;
+    *(int16_t *)pWrite = pTable->numOfColumns;
+    cols++;
+
+    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    *(int16_t *)pWrite = pTable->numOfTags;
+    cols++;
+
+    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    *(int32_t *)pWrite = pTable->numOfTables;
+    cols++;
+
+    numOfRows++;
+  }
+
+  pShow->numOfReads += numOfRows;
   return numOfRows;
 }
 

src/mnode/src/mgmtTable.c

@@ -248,53 +248,48 @@ void mgmtCleanUpMeters() {
 }
 
 int32_t mgmtGetShowTableMeta(STableMeta *pMeta, SShowObj *pShow, void *pConn) {
-//  int32_t cols = 0;
-//
-//  SDbObj *pDb = NULL;
-//  if (pConn->pDb != NULL) {
-//    pDb = mgmtGetDb(pConn->pDb->name);
-//  }
-//
-//  if (pDb == NULL) {
-//    return TSDB_CODE_DB_NOT_SELECTED;
-//  }
-//
-//  SSchema *pSchema = tsGetSchema(pMeta);
-//
-//  pShow->bytes[cols] = TSDB_METER_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, "created_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_METER_NAME_LEN;
-//  pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
-//  strcpy(pSchema[cols].name, "stable");
-//  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];
+  SDbObj *pDb = mgmtGetDb(pShow->db);
+  if (pDb == NULL) {
+    return TSDB_CODE_DB_NOT_SELECTED;
+  }
+
+  int32_t cols = 0;
+  SSchema *pSchema = tsGetSchema(pMeta);
+
+  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, "created_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");
+  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;
 }
@@ -382,7 +377,7 @@ int32_t mgmtRetrieveShowTables(SShowObj *pShow, char *data, int32_t rows, void *
 //      continue;
 //    }
 //
-//    char meterName[TSDB_METER_NAME_LEN] = {0};
+//    char meterName[TSDB_TABLE_NAME_LEN] = {0};
 //    memset(meterName, 0, tListLen(meterName));
 //    numOfRead++;
 //
@@ -390,14 +385,14 @@ int32_t mgmtRetrieveShowTables(SShowObj *pShow, char *data, int32_t rows, void *
 //    extractTableName(tableId, meterName);
 //
 //    if (pShow->payloadLen > 0 &&
-//        patternMatch(pShow->payload, meterName, TSDB_METER_NAME_LEN, &info) != TSDB_PATTERN_MATCH) {
+//        patternMatch(pShow->payload, meterName, TSDB_TABLE_NAME_LEN, &info) != TSDB_PATTERN_MATCH) {
 //      continue;
 //    }
 //
 //    cols = 0;
 //
 //    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-//    strncpy(pWrite, meterName, TSDB_METER_NAME_LEN);
+//    strncpy(pWrite, meterName, TSDB_TABLE_NAME_LEN);
 //    cols++;
 //
 //    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;

src/plugins/http/src/httpUtil.c

@@ -312,7 +312,7 @@ void httpTrimTableName(char *name) {
   for (int i = 0; name[i] != 0; i++) {
     if (name[i] == ' ' || name[i] == ':' || name[i] == '.' || name[i] == '-' || name[i] == '/' || name[i] == '\'')
       name[i] = '_';
-    if (i == TSDB_METER_NAME_LEN + 1) {
+    if (i == TSDB_TABLE_NAME_LEN + 1) {
       name[i] = 0;
       break;
     }
@@ -328,7 +328,7 @@ int httpShrinkTableName(HttpContext *pContext, int pos, char *name) {
     len++;
   }
 
-  if (len < TSDB_METER_NAME_LEN) {
+  if (len < TSDB_TABLE_NAME_LEN) {
     return pos;
   }
 

src/plugins/http/src/tgHandle.c

@@ -199,7 +199,7 @@ void tgParseSchemaMetric(cJSON *metric) {
         goto ParseEnd;
       }
       int nameLen = (int)strlen(field->valuestring);
-      if (nameLen == 0 || nameLen > TSDB_METER_NAME_LEN) {
+      if (nameLen == 0 || nameLen > TSDB_TABLE_NAME_LEN) {
         parsedOk = false;
         goto ParseEnd;
       }
@@ -395,7 +395,7 @@ bool tgProcessSingleMetric(HttpContext *pContext, cJSON *metric, char *db) {
     httpSendErrorResp(pContext, HTTP_TG_METRIC_NAME_NULL);
     return false;
   }
-  if (nameLen >= TSDB_METER_NAME_LEN - 7) {
+  if (nameLen >= TSDB_TABLE_NAME_LEN - 7) {
     httpSendErrorResp(pContext, HTTP_TG_METRIC_NAME_LONG);
     return false;
   }
@@ -484,7 +484,7 @@ bool tgProcessSingleMetric(HttpContext *pContext, cJSON *metric, char *db) {
     return false;
   }
 
-  if (strlen(host->valuestring) >= TSDB_METER_NAME_LEN) {
+  if (strlen(host->valuestring) >= TSDB_TABLE_NAME_LEN) {
     httpSendErrorResp(pContext, HTTP_TG_TABLE_SIZE);
     return false;
   }

src/util/inc/tlog.h

@@ -101,7 +101,7 @@ extern uint32_t cdebugFlag;
 
 #define tscError(...)                               \
   if (cdebugFlag & DEBUG_ERROR) {                   \
-    tprintf("ERROR TSC ", cdebugFlag, __VA_ARGS__); \
+    tprintf("ERROR TSC ", 255, __VA_ARGS__); \
   }
 #define tscWarn(...)                                \
   if (cdebugFlag & DEBUG_WARN) {                    \