Merge branch '3.0' of https://github.com/taosdata/TDengine into feature/tkv

.gitignore

@@ -2,6 +2,8 @@ build/
 compile_commands.json
 .cache
 .ycm_extra_conf.py
+.tasks
+.vimspector.json
 .vscode/
 .idea/
 cmake-build-debug/

example/src/tmq.c

@@ -16,6 +16,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <assert.h>
+#include <time.h>
 #include "taos.h"
 
 static int running = 1;
@@ -65,7 +66,7 @@ int32_t init_env() {
   taos_free_result(pRes);
 
 
-  char* sql = "select * from st1";
+  const char* sql = "select * from st1";
   pRes = tmq_create_topic(pConn, "test_stb_topic_1", sql, strlen(sql));
   /*if (taos_errno(pRes) != 0) {*/
     /*printf("failed to create topic test_stb_topic_1, reason:%s\n", taos_errstr(pRes));*/
@@ -112,14 +113,20 @@ void basic_consume_loop(tmq_t *tmq,
     printf("subscribe err\n");
     return;
   }
-
+  int32_t cnt = 0;
+  clock_t startTime = clock();
   while (running) {
-    tmq_message_t *tmqmessage = tmq_consumer_poll(tmq, 500);
-    if (tmq) {
-      msg_process(tmqmessage);
+    tmq_message_t *tmqmessage = tmq_consumer_poll(tmq, 0);
+    if (tmqmessage) {
+      cnt++;
+      /*msg_process(tmqmessage);*/
       tmq_message_destroy(tmqmessage);
+    } else {
+      break;
     }
   }
+  clock_t endTime = clock();
+  printf("log cnt: %d %f s\n", cnt, (double)(endTime - startTime) / CLOCKS_PER_SEC);
 
   err = tmq_consumer_close(tmq);
   if (err)
@@ -163,6 +170,6 @@ int main() {
   code = init_env();
   tmq_t* tmq = build_consumer();
   tmq_list_t* topic_list = build_topic_list();
-  /*basic_consume_loop(tmq, topic_list);*/
-  sync_consume_loop(tmq, topic_list);
+  basic_consume_loop(tmq, topic_list);
+  /*sync_consume_loop(tmq, topic_list);*/
 }

include/client/taos.h

@@ -213,7 +213,7 @@ typedef struct tmq_message_t tmq_message_t;
 typedef void(tmq_commit_cb(tmq_t *, tmq_resp_err_t, tmq_topic_vgroup_list_t *, void *param));
 
 DLL_EXPORT tmq_list_t *tmq_list_new();
-DLL_EXPORT int32_t     tmq_list_append(tmq_list_t *, char *);
+DLL_EXPORT int32_t     tmq_list_append(tmq_list_t *, const char *);
 
 DLL_EXPORT TAOS_RES *tmq_create_topic(TAOS *taos, const char *name, const char *sql, int sqlLen);
 DLL_EXPORT tmq_t    *tmq_consumer_new(void *conn, tmq_conf_t *conf, char *errstr, int32_t errstrLen);

include/common/tmsg.h

@@ -154,8 +154,8 @@ typedef enum _mgmt_table {
 
 typedef struct {
   int32_t vgId;
-  char*   dbName;
-  char*   tableFullName;
+  char*   dbFName;
+  char*   tbName;
 } SBuildTableMetaInput;
 
 typedef struct {
@@ -696,8 +696,8 @@ typedef struct {
 
 typedef struct {
   SMsgHead header;
-  char     dbFname[TSDB_DB_FNAME_LEN];
-  char     tableFname[TSDB_TABLE_FNAME_LEN];
+  char     dbFName[TSDB_DB_FNAME_LEN];
+  char     tbName[TSDB_TABLE_NAME_LEN];
 } STableInfoReq;
 
 typedef struct {
@@ -722,9 +722,9 @@ typedef struct {
 } SVgroupsInfo;
 
 typedef struct {
-  char     tbFname[TSDB_TABLE_FNAME_LEN];  // table full name
-  char     stbFname[TSDB_TABLE_FNAME_LEN];
-  char     dbFname[TSDB_DB_FNAME_LEN];
+  char     tbName[TSDB_TABLE_NAME_LEN];
+  char     stbName[TSDB_TABLE_NAME_LEN];
+  char     dbFName[TSDB_DB_FNAME_LEN];
   int32_t  numOfTags;
   int32_t  numOfColumns;
   int8_t   precision;

include/libs/catalog/catalog.h

@@ -49,17 +49,19 @@ typedef struct SCatalogCfg {
   uint32_t maxTblCacheNum;
   uint32_t maxDBCacheNum;
   uint32_t dbRentSec;
-  uint32_t stableRentSec;
+  uint32_t stbRentSec;
 } SCatalogCfg;
 
 typedef struct SSTableMetaVersion {
+  char     dbFName[TSDB_DB_FNAME_LEN];
+  char     stbName[TSDB_TABLE_NAME_LEN];
   uint64_t suid;
   int16_t  sversion;
   int16_t  tversion;  
 } SSTableMetaVersion;
 
 typedef struct SDbVgVersion {
-  char    dbName[TSDB_DB_FNAME_LEN];
+  char    dbFName[TSDB_DB_FNAME_LEN];
   int64_t dbId;
   int32_t vgVersion;
 } SDbVgVersion;
@@ -99,7 +101,9 @@ int32_t catalogGetDBVgroup(struct SCatalog* pCatalog, void *pTransporter, const
 
 int32_t catalogUpdateDBVgroup(struct SCatalog* pCatalog, const char* dbName, SDBVgroupInfo* dbInfo);
 
-int32_t catalogRemoveDBVgroup(struct SCatalog* pCatalog, SDbVgVersion* dbInfo);
+int32_t catalogRemoveDB(struct SCatalog* pCatalog, const char* dbName, uint64_t dbId);
+
+int32_t catalogRemoveSTableMeta(struct SCatalog* pCatalog, const char* dbName, const char* stbName, uint64_t suid);
 
 /**
  * Get a table's meta data. 

include/libs/qcom/query.h

@@ -81,16 +81,15 @@ typedef struct STableMeta {
 } STableMeta;
 
 typedef struct SDBVgroupInfo {
-  SRWLatch  lock;
   uint64_t  dbId;
   int32_t   vgVersion;  
   int8_t    hashMethod;
-  SHashObj *vgInfo;  //key:vgId, value:SVgroupInfo
+  SHashObj *vgHash;  //key:vgId, value:SVgroupInfo
 } SDBVgroupInfo;
 
 typedef struct SUseDbOutput {
-  char db[TSDB_DB_FNAME_LEN];
-  SDBVgroupInfo dbVgroup;
+  char           db[TSDB_DB_FNAME_LEN];
+  SDBVgroupInfo *dbVgroup;
 } SUseDbOutput;
 
 enum {
@@ -103,8 +102,9 @@ enum {
 
 typedef struct STableMetaOutput {
   int32_t     metaType;
-  char        ctbFname[TSDB_TABLE_FNAME_LEN];
-  char        tbFname[TSDB_TABLE_FNAME_LEN];
+  char        dbFName[TSDB_DB_FNAME_LEN];
+  char        ctbName[TSDB_TABLE_NAME_LEN];
+  char        tbName[TSDB_TABLE_NAME_LEN];
   SCTableMeta ctbMeta;
   STableMeta *tbMeta;
 } STableMetaOutput;

include/nodes/nodes.h

@@ -78,6 +78,11 @@ typedef struct SNodeList {
   SListCell* pTail;
 } SNodeList;
 
+typedef struct SNameStr {
+  int32_t len;
+  char* pName;
+} SNameStr;
+
 typedef struct SDataType {
   uint8_t type;
   uint8_t precision;
@@ -89,6 +94,7 @@ typedef struct SExprNode {
   ENodeType nodeType;
   SDataType resType;
   char aliasName[TSDB_COL_NAME_LEN];
+  SNodeList* pAssociationList;
 } SExprNode;
 
 typedef enum EColumnType {
@@ -102,7 +108,9 @@ typedef struct SColumnNode {
   EColumnType colType; // column or tag
   char dbName[TSDB_DB_NAME_LEN];
   char tableName[TSDB_TABLE_NAME_LEN];
+  char tableAlias[TSDB_TABLE_NAME_LEN];
   char colName[TSDB_COL_NAME_LEN];
+  SNode* pProjectRef;
 } SColumnNode;
 
 typedef struct SValueNode {
@@ -176,13 +184,16 @@ typedef struct SFunctionNode {
 
 typedef struct STableNode {
   ENodeType type;
+  char dbName[TSDB_DB_NAME_LEN];
   char tableName[TSDB_TABLE_NAME_LEN];
-  char tableAliasName[TSDB_COL_NAME_LEN];
+  char tableAlias[TSDB_TABLE_NAME_LEN];
 } STableNode;
 
+struct STableMeta;
+
 typedef struct SRealTableNode {
   STableNode table; // QUERY_NODE_REAL_TABLE
-  char dbName[TSDB_DB_NAME_LEN];
+  struct STableMeta* pMeta;
 } SRealTableNode;
 
 typedef struct STempTableNode {
@@ -273,7 +284,6 @@ typedef struct SFillNode {
 typedef struct SSelectStmt {
   ENodeType type; // QUERY_NODE_SELECT_STMT
   bool isDistinct;
-  bool isStar;
   SNodeList* pProjectionList; // SNode
   SNode* pFromTable;
   SNode* pWhere;
@@ -295,6 +305,8 @@ typedef struct SSetOperator {
   ESetOperatorType opType;
   SNode* pLeft;
   SNode* pRight;
+  SNodeList* pOrderByList; // SOrderByExprNode
+  SNode* pLimit;
 } SSetOperator;
 
 SNode* nodesMakeNode(ENodeType type);
@@ -306,8 +318,10 @@ void nodesDestroyList(SNodeList* pList);
 
 typedef bool (*FQueryNodeWalker)(SNode* pNode, void* pContext);
 
-bool nodesWalkNode(SNode* pNode, FQueryNodeWalker walker, void* pContext);
-bool nodesWalkList(SNodeList* pList, FQueryNodeWalker walker, void* pContext);
+void nodesWalkNode(SNode* pNode, FQueryNodeWalker walker, void* pContext);
+void nodesWalkList(SNodeList* pList, FQueryNodeWalker walker, void* pContext);
+void nodesWalkNodePostOrder(SNode* pNode, FQueryNodeWalker walker, void* pContext);
+void nodesWalkListPostOrder(SNodeList* pList, FQueryNodeWalker walker, void* pContext);
 
 bool nodesWalkStmt(SNode* pNode, FQueryNodeWalker walker, void* pContext);
 

include/os/osEndian.h

@@ -30,4 +30,4 @@ static const int32_t endian_test_var = 1;
 }
 #endif
 
-#endif /*_TD_OS_ENDIAN_H_*/
+#endif /*_TD_OS_ENDIAN_H_*/
\ No newline at end of file

include/os/osMath.h

@@ -36,25 +36,25 @@ extern "C" {
 
 #else
 
-  #define TSWAP(a, b, c)      \
-    do {                     \
-      typeof(a) __tmp = (a); \
-      (a) = (b);             \
-      (b) = __tmp;           \
+  #define TSWAP(a, b, c)       \
+    do {                       \
+      __typeof(a) __tmp = (a); \
+      (a) = (b);               \
+      (b) = __tmp;             \
     } while (0)
 
-  #define TMAX(a, b)            \
-    ({                         \
-      typeof(a) __a = (a);     \
-      typeof(b) __b = (b);     \
-      (__a > __b) ? __a : __b; \
+  #define TMAX(a, b)             \
+    ({                           \
+      __typeof(a) __a = (a);     \
+      __typeof(b) __b = (b);     \
+      (__a > __b) ? __a : __b;   \
     })
 
-  #define TMIN(a, b)            \
-    ({                         \
-      typeof(a) __a = (a);     \
-      typeof(b) __b = (b);     \
-      (__a < __b) ? __a : __b; \
+  #define TMIN(a, b)             \
+    ({                           \
+      __typeof(a) __a = (a);     \
+      __typeof(b) __b = (b);     \
+      (__a < __b) ? __a : __b;   \
     })
 #endif
 

include/util/taoserror.h

@@ -440,7 +440,10 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_SCH_STATUS_ERROR              TAOS_DEF_ERROR_CODE(0, 0x2501)  //scheduler status error
 #define TSDB_CODE_SCH_INTERNAL_ERROR            TAOS_DEF_ERROR_CODE(0, 0x2502)  //scheduler internal error
 
-
+//parser
+#define TSDB_CODE_PARSER_INVALID_COLUMN         TAOS_DEF_ERROR_CODE(0, 0x2601)  //invalid column name
+#define TSDB_CODE_PARSER_TABLE_NOT_EXIST        TAOS_DEF_ERROR_CODE(0, 0x2602)  //table not exist
+#define TSDB_CODE_PARSER_AMBIGUOUS_COLUMN       TAOS_DEF_ERROR_CODE(0, 0x2603)  //ambiguous column
 
 #ifdef __cplusplus
 }

source/client/src/clientHb.c

@@ -41,19 +41,14 @@ static int32_t hbProcessDBInfoRsp(void *value, int32_t valueLen, struct SCatalog
     tscDebug("hb db rsp, db:%s, vgVersion:%d, uid:%"PRIx64, rsp->db, rsp->vgVersion, rsp->uid);
     
     if (rsp->vgVersion < 0) {
-      SDbVgVersion dbInfo;
-      strcpy(dbInfo.dbName, rsp->db);
-      dbInfo.dbId = rsp->uid;
-      dbInfo.vgVersion = rsp->vgVersion;
-      
-      code = catalogRemoveDBVgroup(pCatalog, &dbInfo);
+      code = catalogRemoveDB(pCatalog, rsp->db, rsp->uid);
     } else {
       SDBVgroupInfo vgInfo = {0};
       vgInfo.dbId = rsp->uid;
       vgInfo.vgVersion = rsp->vgVersion;
       vgInfo.hashMethod = rsp->hashMethod;
-      vgInfo.vgInfo = taosHashInit(rsp->vgNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_ENTRY_LOCK);
-      if (NULL == vgInfo.vgInfo) {
+      vgInfo.vgHash = taosHashInit(rsp->vgNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_ENTRY_LOCK);
+      if (NULL == vgInfo.vgHash) {
         tscError("hash init[%d] failed", rsp->vgNum);
         return TSDB_CODE_TSC_OUT_OF_MEMORY;
       }
@@ -67,16 +62,16 @@ static int32_t hbProcessDBInfoRsp(void *value, int32_t valueLen, struct SCatalog
           rsp->vgroupInfo[i].epset.eps[n].port = ntohs(rsp->vgroupInfo[i].epset.eps[n].port);
         }
 
-        if (0 != taosHashPut(vgInfo.vgInfo, &rsp->vgroupInfo[i].vgId, sizeof(rsp->vgroupInfo[i].vgId), &rsp->vgroupInfo[i], sizeof(rsp->vgroupInfo[i]))) {
+        if (0 != taosHashPut(vgInfo.vgHash, &rsp->vgroupInfo[i].vgId, sizeof(rsp->vgroupInfo[i].vgId), &rsp->vgroupInfo[i], sizeof(rsp->vgroupInfo[i]))) {
           tscError("hash push failed, errno:%d", errno);
-          taosHashCleanup(vgInfo.vgInfo);
+          taosHashCleanup(vgInfo.vgHash);
           return TSDB_CODE_TSC_OUT_OF_MEMORY;
         }
       }  
       
       code = catalogUpdateDBVgroup(pCatalog, rsp->db, &vgInfo);
       if (code) {
-        taosHashCleanup(vgInfo.vgInfo);
+        taosHashCleanup(vgInfo.vgHash);
       }
     }
 
@@ -90,6 +85,75 @@ static int32_t hbProcessDBInfoRsp(void *value, int32_t valueLen, struct SCatalog
   return TSDB_CODE_SUCCESS;
 }
 
+static int32_t hbProcessStbInfoRsp(void *value, int32_t valueLen, struct SCatalog *pCatalog) {
+  int32_t msgLen = 0;
+  int32_t code = 0;
+  int32_t schemaNum = 0;
+  
+  while (msgLen < valueLen) {
+    STableMetaRsp *rsp = (STableMetaRsp *)((char *)value + msgLen);
+
+    rsp->numOfColumns = ntohl(rsp->numOfColumns);
+    rsp->suid = be64toh(rsp->suid);
+    
+    if (rsp->numOfColumns < 0) {
+      schemaNum = 0;
+      
+      tscDebug("hb remove stb, db:%s, stb:%s", rsp->dbFName, rsp->stbName);
+
+      code = catalogRemoveSTableMeta(pCatalog, rsp->dbFName, rsp->stbName, rsp->suid);
+    } else {
+      rsp->numOfTags = ntohl(rsp->numOfTags);
+      
+      schemaNum = rsp->numOfColumns + rsp->numOfTags;
+/*      
+      rsp->vgNum = ntohl(rsp->vgNum);
+      rsp->uid = be64toh(rsp->uid);
+
+      SDBVgroupInfo vgInfo = {0};
+      vgInfo.dbId = rsp->uid;
+      vgInfo.vgVersion = rsp->vgVersion;
+      vgInfo.hashMethod = rsp->hashMethod;
+      vgInfo.vgHash = taosHashInit(rsp->vgNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_ENTRY_LOCK);
+      if (NULL == vgInfo.vgHash) {
+        tscError("hash init[%d] failed", rsp->vgNum);
+        return TSDB_CODE_TSC_OUT_OF_MEMORY;
+      }
+
+      for (int32_t i = 0; i < rsp->vgNum; ++i) {
+        rsp->vgroupInfo[i].vgId = ntohl(rsp->vgroupInfo[i].vgId);
+        rsp->vgroupInfo[i].hashBegin = ntohl(rsp->vgroupInfo[i].hashBegin);
+        rsp->vgroupInfo[i].hashEnd = ntohl(rsp->vgroupInfo[i].hashEnd);
+
+        for (int32_t n = 0; n < rsp->vgroupInfo[i].epset.numOfEps; ++n) {
+          rsp->vgroupInfo[i].epset.eps[n].port = ntohs(rsp->vgroupInfo[i].epset.eps[n].port);
+        }
+
+        if (0 != taosHashPut(vgInfo.vgHash, &rsp->vgroupInfo[i].vgId, sizeof(rsp->vgroupInfo[i].vgId), &rsp->vgroupInfo[i], sizeof(rsp->vgroupInfo[i]))) {
+          tscError("hash push failed, errno:%d", errno);
+          taosHashCleanup(vgInfo.vgHash);
+          return TSDB_CODE_TSC_OUT_OF_MEMORY;
+        }
+      }  
+      
+      code = catalogUpdateDBVgroup(pCatalog, rsp->db, &vgInfo);
+      if (code) {
+        taosHashCleanup(vgInfo.vgHash);
+      }
+*/      
+    }
+
+    if (code) {
+      return code;
+    }
+
+    msgLen += sizeof(STableMetaRsp) + schemaNum * sizeof(SSchema);
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+
 static int32_t hbQueryHbRspHandle(struct SAppHbMgr *pAppHbMgr, SClientHbRsp* pRsp) {
   SHbConnInfo * info = taosHashGet(pAppHbMgr->connInfo, &pRsp->connKey, sizeof(SClientHbKey));
   if (NULL == info) {
@@ -122,9 +186,24 @@ static int32_t hbQueryHbRspHandle(struct SAppHbMgr *pAppHbMgr, SClientHbRsp* pRs
         hbProcessDBInfoRsp(kv->value, kv->valueLen, pCatalog);
         break;
       }
-      case HEARTBEAT_KEY_STBINFO:
+      case HEARTBEAT_KEY_STBINFO:{
+        if (kv->valueLen <= 0 || NULL == kv->value) {
+          tscError("invalid hb stb info, len:%d, value:%p", kv->valueLen, kv->value);
+          break;
+        }
+
+        int64_t *clusterId = (int64_t *)info->param;
+        struct SCatalog *pCatalog = NULL;
+        
+        int32_t code = catalogGetHandle(*clusterId, &pCatalog);
+        if (code != TSDB_CODE_SUCCESS) {
+          tscWarn("catalogGetHandle failed, clusterId:%"PRIx64", error:%s", *clusterId, tstrerror(code));
+          break;
+        }
 
+        hbProcessStbInfoRsp(kv->value, kv->valueLen, pCatalog);
         break;
+      }
       default:
         tscError("invalid hb key type:%d", kv->key);
         break;
@@ -157,7 +236,7 @@ static int32_t hbMqAsyncCallBack(void* param, const SDataBuf* pMsg, int32_t code
   tfree(param);
 
   if (rspNum) {
-    tscDebug("hb got %d rsp, %d empty rsp prior", rspNum, atomic_val_compare_exchange_32(&emptyRspNum, emptyRspNum, 0));
+    tscDebug("hb got %d rsp, %d empty rsp received before", rspNum, atomic_val_compare_exchange_32(&emptyRspNum, emptyRspNum, 0));
   } else {
     atomic_add_fetch_32(&emptyRspNum, 1);
   }
@@ -204,6 +283,37 @@ int32_t hbGetExpiredDBInfo(SClientHbKey *connKey, struct SCatalog *pCatalog, SCl
   return TSDB_CODE_SUCCESS;
 }
 
+int32_t hbGetExpiredStbInfo(SClientHbKey *connKey, struct SCatalog *pCatalog, SClientHbReq *req) {
+  SSTableMetaVersion *stbs = NULL;
+  uint32_t stbNum = 0;
+  int32_t code = 0;
+
+  code = catalogGetExpiredSTables(pCatalog, &stbs, &stbNum);
+  if (TSDB_CODE_SUCCESS != code) {
+    return code;
+  }
+
+  if (stbNum <= 0) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  for (int32_t i = 0; i < stbNum; ++i) {
+    SSTableMetaVersion *stb = &stbs[i];
+    stb->suid = htobe64(stb->suid);
+    stb->sversion = htons(stb->sversion);
+    stb->tversion = htons(stb->tversion);    
+  }
+
+  SKv kv = {.key = HEARTBEAT_KEY_STBINFO, .valueLen = sizeof(SSTableMetaVersion) * stbNum, .value = stbs};
+
+  tscDebug("hb got %d expired stb, valueLen:%d", stbNum, kv.valueLen);
+
+  taosHashPut(req->info, &kv.key, sizeof(kv.key), &kv, sizeof(kv));
+
+  return TSDB_CODE_SUCCESS;
+}
+
+
 int32_t hbQueryHbReqHandle(SClientHbKey *connKey, void* param, SClientHbReq *req) {
   int64_t *clusterId = (int64_t *)param;
   struct SCatalog *pCatalog = NULL;
@@ -219,6 +329,11 @@ int32_t hbQueryHbReqHandle(SClientHbKey *connKey, void* param, SClientHbReq *req
     return code;
   }
 
+  code = hbGetExpiredStbInfo(connKey, pCatalog, req);
+  if (TSDB_CODE_SUCCESS != code) {
+    return code;
+  }
+
 
   return TSDB_CODE_SUCCESS;
 }
@@ -389,7 +504,6 @@ static void hbStopThread() {
 }
 
 SAppHbMgr* appHbMgrInit(SAppInstInfo* pAppInstInfo, char *key) {
-  return NULL;
   hbMgrInit();
   SAppHbMgr* pAppHbMgr = malloc(sizeof(SAppHbMgr)); 
   if (pAppHbMgr == NULL) {
@@ -447,7 +561,6 @@ void appHbMgrCleanup(void) {
 }
 
 int hbMgrInit() {
-  return 0;
   // init once
   int8_t old = atomic_val_compare_exchange_8(&clientHbMgr.inited, 0, 1);
   if (old == 1) return 0;
@@ -504,7 +617,6 @@ int hbRegisterConnImpl(SAppHbMgr* pAppHbMgr, SClientHbKey connKey, SHbConnInfo *
 }
 
 int hbRegisterConn(SAppHbMgr* pAppHbMgr, int32_t connId, int64_t clusterId, int32_t hbType) {
-  return 0;
   SClientHbKey connKey = {.connId = connId, .hbType = HEARTBEAT_TYPE_QUERY};
   SHbConnInfo info = {0};
 

source/client/src/clientImpl.c

@@ -109,7 +109,7 @@ TAOS *taos_connect_internal(const char *ip, const char *user, const char *pass,
     SAppInstInfo* p = calloc(1, sizeof(struct SAppInstInfo));
     p->mgmtEp       = epSet;
     p->pTransporter = openTransporter(user, secretEncrypt, tsNumOfCores);
-    /*p->pAppHbMgr = appHbMgrInit(p, key);*/
+    p->pAppHbMgr = appHbMgrInit(p, key);
     taosHashPut(appInfo.pInstMap, key, strlen(key), &p, POINTER_BYTES);
 
     pInst = &p;

source/client/src/clientMsgHandler.c

@@ -76,7 +76,7 @@ int processConnectRsp(void* param, const SDataBuf* pMsg, int32_t code) {
 
   pTscObj->connType = HEARTBEAT_TYPE_QUERY;
 
-  /*hbRegisterConn(pTscObj->pAppInfo->pAppHbMgr, pConnect->connId, pConnect->clusterId, HEARTBEAT_TYPE_QUERY);*/
+  hbRegisterConn(pTscObj->pAppInfo->pAppHbMgr, pConnect->connId, pConnect->clusterId, HEARTBEAT_TYPE_QUERY);
 
   //  pRequest->body.resInfo.pRspMsg = pMsg->pData;
   tscDebug("0x%" PRIx64 " clusterId:%" PRId64 ", totalConn:%" PRId64, pRequest->requestId, pConnect->clusterId,
@@ -302,15 +302,12 @@ int32_t processDropDbRsp(void* param, const SDataBuf* pMsg, int32_t code) {
 
   SDropDbRsp *rsp = (SDropDbRsp *)pMsg->pData;
 
-  SDbVgVersion dbVer = {0};
   struct SCatalog *pCatalog = NULL;
-  
-  strncpy(dbVer.dbName, rsp->db, sizeof(dbVer.dbName));
-  dbVer.dbId = be64toh(rsp->uid);
+  rsp->uid = be64toh(rsp->uid);
 
   catalogGetHandle(pRequest->pTscObj->pAppInfo->clusterId, &pCatalog);
   
-  catalogRemoveDBVgroup(pCatalog, &dbVer);
+  catalogRemoveDB(pCatalog, rsp->db, rsp->uid);
 
   tsem_post(&pRequest->body.rspSem);
   return code;

source/client/src/tmq.c

@@ -13,6 +13,8 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define _DEFAULT_SOURCE
+
 #include "clientInt.h"
 #include "clientLog.h"
 #include "parser.h"
@@ -146,7 +148,7 @@ tmq_list_t* tmq_list_new() {
   return ptr;
 }
 
-int32_t tmq_list_append(tmq_list_t* ptr, char* src) {
+int32_t tmq_list_append(tmq_list_t* ptr, const char* src) {
   if (ptr->cnt >= ptr->tot - 1) return -1;
   ptr->elems[ptr->cnt] = strdup(src);
   ptr->cnt++;
@@ -366,7 +368,7 @@ TAOS_RES* tmq_create_topic(TAOS* taos, const char* topicName, const char* sql, i
       .igExists = 1,
       .physicalPlan = (char*)pStr,
       .sql = (char*)sql,
-      .logicalPlan = "no logic plan",
+      .logicalPlan = (char*)"no logic plan",
   };
 
   int   tlen = tSerializeSCMCreateTopicReq(NULL, &req);
@@ -512,7 +514,7 @@ int32_t tmqPollCb(void* param, const SDataBuf* pMsg, int32_t code) {
     return -1;
   }
   tDecodeSMqConsumeRsp(pMsg->pData, pRsp);
-  /*printf("rsp %ld %ld\n", pRsp->committedOffset, pRsp->rspOffset);*/
+  /*printf("rsp %ld %ld %d\n", pRsp->committedOffset, pRsp->rspOffset, pRsp->numOfTopics);*/
   if (pRsp->numOfTopics == 0) {
     /*printf("no data\n");*/
     free(pRsp);

source/common/src/ttypes.c

@@ -630,14 +630,6 @@ void operateVal(void *dst, void *s1, void *s2, int32_t optr, int32_t type) {
   }
 }
 
-#define TSWAP(a, b, c)        \
-    do {                     \
-      typeof(a) __tmp = (a); \
-      (a) = (b);             \
-      (b) = __tmp;           \
-    } while (0)
-
-
 void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size, void* buf) {
   switch (type) {
     case TSDB_DATA_TYPE_INT:

source/dnode/mgmt/impl/test/sut/src/sut.cpp

@@ -125,7 +125,7 @@ const char* Testbase::GetMetaName(int32_t index) {
 
 int32_t Testbase::GetMetaNum() { return pMeta->numOfColumns; }
 
-const char* Testbase::GetMetaTbName() { return pMeta->tbFname; }
+const char* Testbase::GetMetaTbName() { return pMeta->tbName; }
 
 void Testbase::SendShowRetrieveReq() {
   int32_t contLen = sizeof(SRetrieveTableReq);
@@ -144,7 +144,7 @@ void Testbase::SendShowRetrieveReq() {
   pos = 0;
 }
 
-const char* Testbase::GetShowName() { return pMeta->tbFname; }
+const char* Testbase::GetShowName() { return pMeta->tbName; }
 
 int8_t Testbase::GetShowInt8() {
   int8_t data = *((int8_t*)(pData + pos));

source/dnode/mnode/impl/inc/mndStb.h

@@ -28,6 +28,9 @@ void    mndCleanupStb(SMnode *pMnode);
 SStbObj *mndAcquireStb(SMnode *pMnode, char *stbName);
 void mndReleaseStb(SMnode *pMnode, SStbObj *pStb);
 
+int32_t mndValidateStbInfo(SMnode *pMnode, SSTableMetaVersion *stbs, int32_t num, void **rsp, int32_t *rspLen);
+
+
 #ifdef __cplusplus
 }
 #endif

source/dnode/mnode/impl/src/mndBnode.c

@@ -426,7 +426,7 @@ static int32_t mndGetBnodeMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *
 
   pShow->numOfRows = sdbGetSize(pSdb, SDB_BNODE);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndCluster.c

@@ -186,7 +186,7 @@ static int32_t mndGetClusterMeta(SMnodeMsg *pMsg, SShowObj *pShow, STableMetaRsp
   cols++;
 
   pMeta->numOfColumns = htonl(cols);
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
   pShow->numOfColumns = cols;
 
   pShow->offset[0] = 0;
@@ -196,7 +196,7 @@ static int32_t mndGetClusterMeta(SMnodeMsg *pMsg, SShowObj *pShow, STableMetaRsp
 
   pShow->numOfRows = 1;
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndConsumer.c

@@ -14,6 +14,7 @@
  */
 
 #define _DEFAULT_SOURCE
+
 #include "mndConsumer.h"
 #include "mndDb.h"
 #include "mndDnode.h"
@@ -54,13 +55,14 @@ void mndCleanupConsumer(SMnode *pMnode) {}
 
 SSdbRaw *mndConsumerActionEncode(SMqConsumerObj *pConsumer) {
   terrno = TSDB_CODE_OUT_OF_MEMORY;
+  void* buf = NULL;
   int32_t tlen = tEncodeSMqConsumerObj(NULL, pConsumer);
   int32_t size = sizeof(int32_t) + tlen + MND_CONSUMER_RESERVE_SIZE;
 
   SSdbRaw *pRaw = sdbAllocRaw(SDB_CONSUMER, MND_CONSUMER_VER_NUMBER, size);
   if (pRaw == NULL) goto CM_ENCODE_OVER;
 
-  void *buf = malloc(tlen);
+  buf = malloc(tlen);
   if (buf == NULL) goto CM_ENCODE_OVER;
 
   void *abuf = buf;
@@ -88,6 +90,7 @@ CM_ENCODE_OVER:
 
 SSdbRow *mndConsumerActionDecode(SSdbRaw *pRaw) {
   terrno = TSDB_CODE_OUT_OF_MEMORY;
+  void* buf = NULL;
 
   int8_t sver = 0;
   if (sdbGetRawSoftVer(pRaw, &sver) != 0) goto CM_DECODE_OVER;
@@ -106,7 +109,7 @@ SSdbRow *mndConsumerActionDecode(SSdbRaw *pRaw) {
   int32_t dataPos = 0;
   int32_t len;
   SDB_GET_INT32(pRaw, dataPos, &len, CM_DECODE_OVER);
-  void *buf = malloc(len);
+  buf = malloc(len);
   if (buf == NULL) goto CM_DECODE_OVER;
   SDB_GET_BINARY(pRaw, dataPos, buf, len, CM_DECODE_OVER);
   SDB_GET_RESERVE(pRaw, dataPos, MND_CONSUMER_RESERVE_SIZE, CM_DECODE_OVER);

source/dnode/mnode/impl/src/mndDb.c

@@ -907,9 +907,9 @@ int32_t mndValidateDBInfo(SMnode *pMnode, SDbVgVersion *dbs, int32_t num, void *
 
     len = 0;
     
-    SDbObj *pDb = mndAcquireDb(pMnode, db->dbName);
+    SDbObj *pDb = mndAcquireDb(pMnode, db->dbFName);
     if (pDb == NULL) {
-      mInfo("db %s not exist", db->dbName);
+      mInfo("db %s not exist", db->dbFName);
       
       len = sizeof(SUseDbRsp);
     } else if (pDb->uid != db->dbId || db->vgVersion < pDb->vgVersion) {
@@ -929,7 +929,7 @@ int32_t mndValidateDBInfo(SMnode *pMnode, SDbVgVersion *dbs, int32_t num, void *
     }
     
     pRsp = (SUseDbRsp *)((char *)buf + bufOffset);
-    memcpy(pRsp->db, db->dbName, TSDB_DB_FNAME_LEN);
+    memcpy(pRsp->db, db->dbFName, TSDB_DB_FNAME_LEN);
     if (pDb) {
       int32_t vgNum = 0;
       mndBuildDBVgroupInfo(pDb, pMnode, pRsp->vgroupInfo, &vgNum);
@@ -1113,7 +1113,7 @@ static int32_t mndGetDbMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *pMe
 
   pShow->numOfRows = sdbGetSize(pSdb, SDB_DB);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndDnode.c

@@ -608,7 +608,7 @@ static int32_t mndGetConfigMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp
 
   pShow->numOfRows = TSDB_CONFIG_NUMBER;
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }
@@ -715,7 +715,7 @@ static int32_t mndGetDnodeMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *
 
   pShow->numOfRows = sdbGetSize(pSdb, SDB_DNODE);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndFunc.c

@@ -482,7 +482,7 @@ static int32_t mndGetFuncMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *p
 
   pShow->numOfRows = sdbGetSize(pSdb, SDB_FUNC);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndMnode.c

@@ -624,7 +624,7 @@ static int32_t mndGetMnodeMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *
 
   pShow->numOfRows = sdbGetSize(pSdb, SDB_MNODE);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   mndUpdateMnodeRole(pMnode);
   return 0;

source/dnode/mnode/impl/src/mndProfile.c

@@ -18,6 +18,7 @@
 #include "mndProfile.h"
 //#include "mndConsumer.h"
 #include "mndDb.h"
+#include "mndStb.h"
 #include "mndMnode.h"
 #include "mndShow.h"
 //#include "mndTopic.h"
@@ -376,9 +377,16 @@ static int32_t mndProcessHeartBeatReq(SMnodeMsg *pReq) {
             }
             break;
           }
-          case HEARTBEAT_KEY_STBINFO:
-
+          case HEARTBEAT_KEY_STBINFO: {
+            void *rspMsg = NULL;
+            int32_t rspLen = 0;
+            mndValidateStbInfo(pMnode, (SSTableMetaVersion *)kv->value, kv->valueLen/sizeof(SSTableMetaVersion), &rspMsg, &rspLen);
+            if (rspMsg && rspLen > 0) {
+              SKv kv = {.key = HEARTBEAT_KEY_STBINFO, .valueLen = rspLen, .value = rspMsg};
+              taosArrayPush(hbRsp.info, &kv);
+            }
             break;
+          }
           default:
             mError("invalid kv key:%d", kv->key);
             hbRsp.status = TSDB_CODE_MND_APP_ERROR;
@@ -623,7 +631,7 @@ static int32_t mndGetConnsMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *
 
   pShow->numOfRows = taosHashGetSize(pMgmt->cache->pHashTable);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }
@@ -792,7 +800,7 @@ static int32_t mndGetQueryMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *
 
   pShow->numOfRows = 1000000;
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndQnode.c

@@ -426,7 +426,7 @@ static int32_t mndGetQnodeMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *
 
   pShow->numOfRows = sdbGetSize(pSdb, SDB_QNODE);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndSnode.c

@@ -428,7 +428,7 @@ static int32_t mndGetSnodeMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *
 
   pShow->numOfRows = sdbGetSize(pSdb, SDB_SNODE);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndStb.c

@@ -723,20 +723,23 @@ static int32_t mndProcessStbMetaReq(SMnodeMsg *pReq) {
   SMnode        *pMnode = pReq->pMnode;
   STableInfoReq *pInfo = pReq->rpcMsg.pCont;
 
-  mDebug("stb:%s, start to retrieve meta", pInfo->tableFname);
+  char tbFName[TSDB_TABLE_FNAME_LEN] = {0};
+  snprintf(tbFName, sizeof(tbFName), "%s.%s", pInfo->dbFName, pInfo->tbName);
 
-  SDbObj *pDb = mndAcquireDbByStb(pMnode, pInfo->tableFname);
+  mDebug("stb:%s, start to retrieve meta", tbFName);
+
+  SDbObj *pDb = mndAcquireDb(pMnode, pInfo->dbFName);
   if (pDb == NULL) {
     terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
-    mError("stb:%s, failed to retrieve meta since %s", pInfo->tableFname, terrstr());
+    mError("stb:%s, failed to retrieve meta since %s", tbFName, terrstr());
     return -1;
   }
 
-  SStbObj *pStb = mndAcquireStb(pMnode, pInfo->tableFname);
+  SStbObj *pStb = mndAcquireStb(pMnode, tbFName);
   if (pStb == NULL) {
     mndReleaseDb(pMnode, pDb);
     terrno = TSDB_CODE_MND_INVALID_STB;
-    mError("stb:%s, failed to get meta since %s", pInfo->tableFname, terrstr());
+    mError("stb:%s, failed to get meta since %s", tbFName, terrstr());
     return -1;
   }
 
@@ -750,11 +753,13 @@ static int32_t mndProcessStbMetaReq(SMnodeMsg *pReq) {
     mndReleaseDb(pMnode, pDb);
     mndReleaseStb(pMnode, pStb);
     terrno = TSDB_CODE_OUT_OF_MEMORY;
-    mError("stb:%s, failed to get meta since %s", pInfo->tableFname, terrstr());
+    mError("stb:%s, failed to get meta since %s", tbFName, terrstr());
     return -1;
   }
 
-  memcpy(pMeta->tbFname, pStb->name, TSDB_TABLE_FNAME_LEN);
+  strcpy(pMeta->dbFName, pStb->db);
+  strcpy(pMeta->tbName, pInfo->tbName);
+  strcpy(pMeta->stbName, pInfo->tbName);
   pMeta->numOfTags = htonl(pStb->numOfTags);
   pMeta->numOfColumns = htonl(pStb->numOfColumns);
   pMeta->precision = pDb->cfg.precision;
@@ -779,10 +784,113 @@ static int32_t mndProcessStbMetaReq(SMnodeMsg *pReq) {
   pReq->pCont = pMeta;
   pReq->contLen = contLen;
 
-  mDebug("stb:%s, meta is retrieved, cols:%d tags:%d", pInfo->tableFname, pStb->numOfColumns, pStb->numOfTags);
+  mDebug("stb:%s, meta is retrieved, cols:%d tags:%d", tbFName, pStb->numOfColumns, pStb->numOfTags);
   return 0;
 }
 
+int32_t mndValidateStbInfo(SMnode *pMnode, SSTableMetaVersion *stbs, int32_t num, void **rsp, int32_t *rspLen) {
+  SSdb *pSdb = pMnode->pSdb;
+  int32_t bufSize = num * (sizeof(STableMetaRsp) + 4 * sizeof(SSchema));  
+  void *buf = malloc(bufSize);
+  int32_t len = 0;
+  int32_t contLen = 0;
+  STableMetaRsp *pRsp = NULL;
+
+  for (int32_t i = 0; i < num; ++i) {
+    SSTableMetaVersion *stb = &stbs[i];
+    stb->suid = be64toh(stb->suid);
+    stb->sversion = ntohs(stb->sversion);
+    stb->tversion = ntohs(stb->tversion);
+
+    if ((contLen + sizeof(STableMetaRsp)) > bufSize) {
+      bufSize = contLen + (num -i) * (sizeof(STableMetaRsp) + 4 * sizeof(SSchema));
+      buf = realloc(buf, bufSize);
+    }
+
+    pRsp = (STableMetaRsp *)((char *)buf + contLen);
+
+    strcpy(pRsp->dbFName, stb->dbFName);
+    strcpy(pRsp->tbName, stb->stbName);
+    strcpy(pRsp->stbName, stb->stbName);
+    
+    mDebug("start to retrieve meta, db:%s, stb:%s", stb->dbFName, stb->stbName);
+    
+    SDbObj *pDb = mndAcquireDb(pMnode, stb->dbFName);
+    if (pDb == NULL) {
+      pRsp->numOfColumns = -1;
+      pRsp->suid = htobe64(stb->suid);
+      contLen += sizeof(STableMetaRsp);
+      mWarn("db:%s, failed to require db since %s", stb->dbFName, terrstr());
+      continue;
+    }
+
+    char tbFName[TSDB_TABLE_FNAME_LEN] = {0};
+    snprintf(tbFName, sizeof(tbFName), "%s.%s", stb->dbFName, stb->stbName);
+    
+    SStbObj *pStb = mndAcquireStb(pMnode, tbFName);
+    if (pStb == NULL) {
+      mndReleaseDb(pMnode, pDb);
+      pRsp->numOfColumns = -1;
+      pRsp->suid = htobe64(stb->suid);
+      contLen += sizeof(STableMetaRsp);
+      mWarn("stb:%s, failed to get meta since %s", tbFName, terrstr());
+      continue;
+    }
+    
+    taosRLockLatch(&pStb->lock);
+
+    if (stb->suid == pStb->uid && stb->sversion == pStb->version) {
+      taosRUnLockLatch(&pStb->lock);
+      mndReleaseDb(pMnode, pDb);
+      mndReleaseStb(pMnode, pStb);
+      continue;
+    }
+    
+    int32_t totalCols = pStb->numOfColumns + pStb->numOfTags;
+    int32_t len = totalCols * sizeof(SSchema);
+    
+    contLen += sizeof(STableMetaRsp) + len;
+    
+    if (contLen > bufSize) {
+      bufSize = contLen + (num -i - 1) * (sizeof(STableMetaRsp) + 4 * sizeof(SSchema));
+      buf = realloc(buf, bufSize);
+    }
+    
+    pRsp->numOfTags = htonl(pStb->numOfTags);
+    pRsp->numOfColumns = htonl(pStb->numOfColumns);
+    pRsp->precision = pDb->cfg.precision;
+    pRsp->tableType = TSDB_SUPER_TABLE;
+    pRsp->update = pDb->cfg.update;
+    pRsp->sversion = htonl(pStb->version);
+    pRsp->suid = htobe64(pStb->uid);
+    pRsp->tuid = htobe64(pStb->uid);
+    
+    for (int32_t i = 0; i < totalCols; ++i) {
+      SSchema *pSchema = &pRsp->pSchema[i];
+      SSchema *pSrcSchema = &pStb->pSchema[i];
+      memcpy(pSchema->name, pSrcSchema->name, TSDB_COL_NAME_LEN);
+      pSchema->type = pSrcSchema->type;
+      pSchema->colId = htonl(pSrcSchema->colId);
+      pSchema->bytes = htonl(pSrcSchema->bytes);
+    }
+    taosRUnLockLatch(&pStb->lock);
+    mndReleaseDb(pMnode, pDb);
+    mndReleaseStb(pMnode, pStb);
+  }
+
+  if (contLen > 0) {
+    *rsp = buf;
+    *rspLen = contLen;
+  } else {
+    *rsp = NULL;
+    tfree(buf);
+    *rspLen = 0;
+  }
+
+  return 0;
+}
+
+
 static int32_t mndGetNumOfStbs(SMnode *pMnode, char *dbName, int32_t *pNumOfStbs) {
   SSdb *pSdb = pMnode->pSdb;
 
@@ -855,7 +963,7 @@ static int32_t mndGetStbMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *pM
 
   pShow->numOfRows = sdbGetSize(pSdb, SDB_STB);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndSubscribe.c

@@ -12,6 +12,7 @@
  * 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 "mndSubscribe.h"
 #include "mndConsumer.h"
@@ -372,13 +373,14 @@ void mndCleanupSubscribe(SMnode *pMnode) {}
 
 static SSdbRaw *mndSubActionEncode(SMqSubscribeObj *pSub) {
   terrno = TSDB_CODE_OUT_OF_MEMORY;
+  void* buf = NULL;
   int32_t tlen = tEncodeSubscribeObj(NULL, pSub);
   int32_t size = sizeof(int32_t) + tlen + MND_SUBSCRIBE_RESERVE_SIZE;
 
   SSdbRaw *pRaw = sdbAllocRaw(SDB_SUBSCRIBE, MND_SUBSCRIBE_VER_NUMBER, size);
   if (pRaw == NULL) goto SUB_ENCODE_OVER;
 
-  void *buf = malloc(tlen);
+  buf = malloc(tlen);
   if (buf == NULL) goto SUB_ENCODE_OVER;
 
   void *abuf = buf;
@@ -406,6 +408,7 @@ SUB_ENCODE_OVER:
 
 static SSdbRow *mndSubActionDecode(SSdbRaw *pRaw) {
   terrno = TSDB_CODE_OUT_OF_MEMORY;
+  void* buf = NULL;
 
   int8_t sver = 0;
   if (sdbGetRawSoftVer(pRaw, &sver) != 0) goto SUB_DECODE_OVER;
@@ -425,7 +428,7 @@ static SSdbRow *mndSubActionDecode(SSdbRaw *pRaw) {
   int32_t dataPos = 0;
   int32_t tlen;
   SDB_GET_INT32(pRaw, dataPos, &tlen, SUB_DECODE_OVER);
-  void *buf = malloc(tlen + 1);
+  buf = malloc(tlen + 1);
   if (buf == NULL) goto SUB_DECODE_OVER;
   SDB_GET_BINARY(pRaw, dataPos, buf, tlen, SUB_DECODE_OVER);
   SDB_GET_RESERVE(pRaw, dataPos, MND_SUBSCRIBE_RESERVE_SIZE, SUB_DECODE_OVER);
@@ -742,7 +745,7 @@ static int32_t mndProcessConsumerMetaMsg(SMnodeMsg *pMsg) {
   SMnode        *pMnode = pMsg->pMnode;
   STableInfoReq *pInfo = pMsg->rpcMsg.pCont;
 
-  mDebug("subscribe:%s, start to retrieve meta", pInfo->tableFname);
+  mDebug("subscribe:%s, start to retrieve meta", pInfo->tbName);
 
 #if 0
   SDbObj *pDb = mndAcquireDbByConsumer(pMnode, pInfo->tableFname);
@@ -873,7 +876,7 @@ static int32_t mndGetConsumerMeta(SMnodeMsg *pMsg, SShowObj *pShow, STableMetaRs
 
   pShow->numOfRows = sdbGetSize(pSdb, SDB_CONSUMER);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndTopic.c

@@ -338,7 +338,7 @@ static int32_t mndProcessTopicMetaMsg(SMnodeMsg *pMsg) {
   SMnode        *pMnode = pMsg->pMnode;
   STableInfoReq *pInfo = pMsg->rpcMsg.pCont;
 
-  mDebug("topic:%s, start to retrieve meta", pInfo->tableFname);
+  mDebug("topic:%s, start to retrieve meta", pInfo->tbName);
 
 #if 0
   SDbObj *pDb = mndAcquireDbByTopic(pMnode, pInfo->tableFname);
@@ -469,7 +469,7 @@ static int32_t mndGetTopicMeta(SMnodeMsg *pMsg, SShowObj *pShow, STableMetaRsp *
 
   pShow->numOfRows = sdbGetSize(pSdb, SDB_TOPIC);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndUser.c

@@ -474,7 +474,7 @@ static int32_t mndGetUserMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *p
 
   pShow->numOfRows = sdbGetSize(pSdb, SDB_USER);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/src/mndVgroup.c

@@ -525,7 +525,7 @@ static int32_t mndGetVgroupMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp
   }
 
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }
@@ -638,7 +638,7 @@ static int32_t mndGetVnodeMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *
   pShow->replica = dnodeId;
   pShow->numOfRows = mndGetVnodesNum(pMnode, dnodeId);
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
-  strcpy(pMeta->tbFname, mndShowStr(pShow->type));
+  strcpy(pMeta->tbName, mndShowStr(pShow->type));
 
   return 0;
 }

source/dnode/mnode/impl/test/show/show.cpp

@@ -64,7 +64,7 @@ TEST_F(MndTestShow, 03_ShowMsg_Conn) {
   test.SendShowMetaReq(TSDB_MGMT_TABLE_CONNS, "");
 
   STableMetaRsp* pMeta = test.GetShowMeta();
-  EXPECT_STREQ(pMeta->tbFname, "show connections");
+  EXPECT_STREQ(pMeta->tbName, "show connections");
   EXPECT_EQ(pMeta->numOfTags, 0);
   EXPECT_EQ(pMeta->numOfColumns, 7);
   EXPECT_EQ(pMeta->precision, 0);

source/dnode/mnode/impl/test/stb/stb.cpp

@@ -126,7 +126,8 @@ TEST_F(MndTestStb, 01_Create_Show_Meta_Drop_Restart_Stb) {
     int32_t contLen = sizeof(STableInfoReq);
 
     STableInfoReq* pReq = (STableInfoReq*)rpcMallocCont(contLen);
-    strcpy(pReq->tableFname, "1.d1.stb");
+    strcpy(pReq->dbFName, "1.d1");
+    strcpy(pReq->tbName, "stb");
 
     SRpcMsg* pMsg = test.SendReq(TDMT_MND_STB_META, pReq, contLen);
     ASSERT_NE(pMsg, nullptr);
@@ -146,8 +147,9 @@ TEST_F(MndTestStb, 01_Create_Show_Meta_Drop_Restart_Stb) {
       pSchema->bytes = htonl(pSchema->bytes);
     }
 
-    EXPECT_STREQ(pRsp->tbFname, "1.d1.stb");
-    EXPECT_STREQ(pRsp->stbFname, "");
+    EXPECT_STREQ(pRsp->dbFName, "1.d1");
+    EXPECT_STREQ(pRsp->tbName, "stb");
+    EXPECT_STREQ(pRsp->stbName, "stb");
     EXPECT_EQ(pRsp->numOfColumns, 2);
     EXPECT_EQ(pRsp->numOfTags, 3);
     EXPECT_EQ(pRsp->precision, TSDB_TIME_PRECISION_MILLI);

source/dnode/vnode/src/inc/tqInt.h

@@ -16,9 +16,9 @@
 #ifndef _TD_TQ_INT_H_
 #define _TD_TQ_INT_H_
 
-#include "tq.h"
 #include "meta.h"
 #include "tlog.h"
+#include "tq.h"
 #include "trpc.h"
 #ifdef __cplusplus
 extern "C" {
@@ -26,29 +26,48 @@ extern "C" {
 
 extern int32_t tqDebugFlag;
 
-#define tqFatal(...) { if (tqDebugFlag & DEBUG_FATAL) { taosPrintLog("TQ  FATAL ", 255, __VA_ARGS__); }}
-#define tqError(...) { if (tqDebugFlag & DEBUG_ERROR) { taosPrintLog("TQ  ERROR ", 255, __VA_ARGS__); }}
-#define tqWarn(...)  { if (tqDebugFlag & DEBUG_WARN)  { taosPrintLog("TQ  WARN ", 255, __VA_ARGS__); }}
-#define tqInfo(...)  { if (tqDebugFlag & DEBUG_INFO)  { taosPrintLog("TQ  ", 255, __VA_ARGS__); }}
-#define tqDebug(...) { if (tqDebugFlag & DEBUG_DEBUG) { taosPrintLog("TQ  ", tqDebugFlag, __VA_ARGS__); }}
-#define tqTrace(...) { if (tqDebugFlag & DEBUG_TRACE) { taosPrintLog("TQ  ", tqDebugFlag, __VA_ARGS__); }}
-
-// create persistent storage for meta info such as consuming offset
-// return value > 0: cgId
-// return value <= 0: error code
-// int tqCreateTCGroup(STQ*, const char* topic, int cgId, tqBufferHandle** handle);
-// create ring buffer in memory and load consuming offset
-// int tqOpenTCGroup(STQ*, const char* topic, int cgId);
-// destroy ring buffer and persist consuming offset
-// int tqCloseTCGroup(STQ*, const char* topic, int cgId);
-// delete persistent storage for meta info
-// int tqDropTCGroup(STQ*, const char* topic, int cgId);
-
-//int tqSerializeGroup(const STqGroup*, STqSerializedHead**);
-//const void* tqDeserializeGroup(const STqSerializedHead* pHead, STqGroup** ppGroup);
-int tqSerializeConsumer(const STqConsumerHandle*, STqSerializedHead**);
-const void* tqDeserializeConsumer(const STqSerializedHead* pHead, STqConsumerHandle**);
+#define tqFatal(...)                                \
+  {                                                 \
+    if (tqDebugFlag & DEBUG_FATAL) {                \
+      taosPrintLog("TQ  FATAL ", 255, __VA_ARGS__); \
+    }                                               \
+  }
+#define tqError(...)                                \
+  {                                                 \
+    if (tqDebugFlag & DEBUG_ERROR) {                \
+      taosPrintLog("TQ  ERROR ", 255, __VA_ARGS__); \
+    }                                               \
+  }
+#define tqWarn(...)                                \
+  {                                                \
+    if (tqDebugFlag & DEBUG_WARN) {                \
+      taosPrintLog("TQ  WARN ", 255, __VA_ARGS__); \
+    }                                              \
+  }
+#define tqInfo(...)                           \
+  {                                           \
+    if (tqDebugFlag & DEBUG_INFO) {           \
+      taosPrintLog("TQ  ", 255, __VA_ARGS__); \
+    }                                         \
+  }
+#define tqDebug(...)                                  \
+  {                                                   \
+    if (tqDebugFlag & DEBUG_DEBUG) {                  \
+      taosPrintLog("TQ  ", tqDebugFlag, __VA_ARGS__); \
+    }                                                 \
+  }
+#define tqTrace(...)                                  \
+  {                                                   \
+    if (tqDebugFlag & DEBUG_TRACE) {                  \
+      taosPrintLog("TQ  ", tqDebugFlag, __VA_ARGS__); \
+    }                                                 \
+  }
+
+int                     tqSerializeConsumer(const STqConsumerHandle*, STqSerializedHead**);
+const void*             tqDeserializeConsumer(const STqSerializedHead* pHead, STqConsumerHandle**);
+
 static int FORCE_INLINE tqQueryExecuting(int32_t status) { return status; }
+
 #ifdef __cplusplus
 }
 #endif

source/dnode/vnode/src/tq/tq.c

@@ -12,19 +12,12 @@
  * 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 "tcompare.h"
 #include "tqInt.h"
 #include "tqMetaStore.h"
 
-// static
-// read next version data
-//
-// send to fetch queue
-//
-// handle management message
-//
-
 int tqInit() {
   int8_t old = atomic_val_compare_exchange_8(&tqMgmt.inited, 0, 1);
   if (old == 1) return 0;

source/dnode/vnode/src/vnd/vnodeQuery.c

@@ -84,7 +84,7 @@ static int vnodeGetTableMeta(SVnode *pVnode, SRpcMsg *pMsg) {
   int             msgLen = 0;
   int32_t         code = TSDB_CODE_VND_APP_ERROR;
 
-  pTbCfg = metaGetTbInfoByName(pVnode->pMeta, pReq->tableFname, &uid);
+  pTbCfg = metaGetTbInfoByName(pVnode->pMeta, pReq->tbName, &uid);
   if (pTbCfg == NULL) {
     code = TSDB_CODE_VND_TB_NOT_EXIST;
     goto _exit;
@@ -119,13 +119,13 @@ static int vnodeGetTableMeta(SVnode *pVnode, SRpcMsg *pMsg) {
     goto _exit;
   }
 
-  memcpy(pTbMetaMsg->dbFname, pReq->dbFname, sizeof(pTbMetaMsg->dbFname));
-  strcpy(pTbMetaMsg->tbFname, pTbCfg->name);
+  memcpy(pTbMetaMsg->dbFName, pReq->dbFName, sizeof(pTbMetaMsg->dbFName));
+  strcpy(pTbMetaMsg->tbName, pReq->tbName);
   if (pTbCfg->type == META_CHILD_TABLE) {
-    strcpy(pTbMetaMsg->stbFname, pStbCfg->name);
+    strcpy(pTbMetaMsg->stbName, pStbCfg->name);
     pTbMetaMsg->suid = htobe64(pTbCfg->ctbCfg.suid);
   } else if (pTbCfg->type == META_SUPER_TABLE) {
-    strcpy(pTbMetaMsg->stbFname, pTbCfg->name);
+    strcpy(pTbMetaMsg->stbName, pTbCfg->name);
     pTbMetaMsg->suid = htobe64(uid);
   }
   pTbMetaMsg->numOfTags = htonl(nTagCols);

source/libs/catalog/inc/catalogInt.h

@@ -27,7 +27,7 @@ extern "C" {
 #define CTG_DEFAULT_CACHE_CLUSTER_NUMBER 6
 #define CTG_DEFAULT_CACHE_VGROUP_NUMBER 100
 #define CTG_DEFAULT_CACHE_DB_NUMBER 20
-#define CTG_DEFAULT_CACHE_TABLEMETA_NUMBER 100000
+#define CTG_DEFAULT_CACHE_TABLEMETA_NUMBER 10000
 #define CTG_DEFAULT_RENT_SECOND 10
 #define CTG_DEFAULT_RENT_SLOT_SIZE 10
 
@@ -47,55 +47,52 @@ enum {
   CTG_RENT_STABLE,
 };
 
-typedef struct SCTGDebug {
+typedef struct SCtgDebug {
   int32_t lockDebug;
-} SCTGDebug;
+} SCtgDebug;
 
 
-typedef struct SVgroupListCache {
-  int32_t vgroupVersion;
-  SHashObj *cache;        // key:vgId, value:SVgroupInfo
-} SVgroupListCache;
+typedef struct SCtgTbMetaCache {
+  SRWLatch  stbLock;
+  SHashObj *cache;           //key:tbname, value:STableMeta
+  SHashObj *stbCache;        //key:suid, value:STableMeta*
+} SCtgTbMetaCache;
 
-typedef struct SDBVgroupCache {
-  SHashObj *cache;      //key:dbname, value:SDBVgroupInfo
-} SDBVgroupCache;
+typedef struct SCtgDBCache {
+  SRWLatch         vgLock;
+  int8_t           deleted;
+  SDBVgroupInfo   *vgInfo;  
+  SCtgTbMetaCache  tbCache;
+} SCtgDBCache;
 
-typedef struct STableMetaCache {
-  SRWLatch  stableLock;
-  SHashObj *cache;           //key:fulltablename, value:STableMeta
-  SHashObj *stableCache;     //key:suid, value:STableMeta*
-} STableMetaCache;
-
-typedef struct SRentSlotInfo {
+typedef struct SCtgRentSlot {
   SRWLatch lock;
   bool     needSort;
   SArray  *meta;  // element is SDbVgVersion or SSTableMetaVersion
-} SRentSlotInfo;
+} SCtgRentSlot;
 
-typedef struct SMetaRentMgmt {
+typedef struct SCtgRentMgmt {
   int8_t         type;
   uint16_t       slotNum;
   uint16_t       slotRIdx;
   int64_t        lastReadMsec;
-  SRentSlotInfo *slots;
-} SMetaRentMgmt;
+  SCtgRentSlot  *slots;
+} SCtgRentMgmt;
 
 typedef struct SCatalog {
-  uint64_t         clusterId;
-  SDBVgroupCache   dbCache;
-  STableMetaCache  tableCache;
-  SMetaRentMgmt    dbRent;
-  SMetaRentMgmt    stableRent;
+  uint64_t         clusterId;  
+  SHashObj        *dbCache;      //key:dbname, value:SCtgDBCache
+  SCtgRentMgmt     dbRent;
+  SCtgRentMgmt     stbRent;
 } SCatalog;
 
 typedef struct SCtgApiStat {
 
 } SCtgApiStat;
 
-typedef struct SCtgResourceStat {
+typedef struct SCtgRuntimeStat {
 
-} SCtgResourceStat;
+} SCtgRuntimeStat;
 
 typedef struct SCtgCacheStat {
 
@@ -103,7 +100,7 @@ typedef struct SCtgCacheStat {
 
 typedef struct SCatalogStat {
   SCtgApiStat      api;
-  SCtgResourceStat resource;
+  SCtgRuntimeStat  runtime;
   SCtgCacheStat    cache;
 } SCatalogStat;
 

source/libs/catalog/src/catalog.c

@@ -20,31 +20,106 @@
 
 SCatalogMgmt ctgMgmt = {0};
 
-SCTGDebug gCTGDebug = {0};
+SCtgDebug gCTGDebug = {0};
 
 
-int32_t ctgGetDBVgroupFromCache(struct SCatalog* pCatalog, const char *dbName, SDBVgroupInfo **dbInfo, bool *inCache) {
-  if (NULL == pCatalog->dbCache.cache) {
+void ctgFreeMetaRent(SCtgRentMgmt *mgmt) {
+  if (NULL == mgmt->slots) {
+    return;
+  }
+
+  for (int32_t i = 0; i < mgmt->slotNum; ++i) {
+    SCtgRentSlot *slot = &mgmt->slots[i];
+    if (slot->meta) {
+      taosArrayDestroy(slot->meta);
+      slot->meta = NULL;
+    }
+  }
+
+  tfree(mgmt->slots);
+}
+
+
+void ctgFreeTableMetaCache(SCtgTbMetaCache *table) {
+  CTG_LOCK(CTG_WRITE, &table->stbLock);
+  if (table->stbCache) {
+    taosHashCleanup(table->stbCache);
+    table->stbCache = NULL;
+  }
+  CTG_UNLOCK(CTG_WRITE, &table->stbLock);
+
+  if (table->cache) {
+    taosHashCleanup(table->cache);
+    table->cache = NULL;
+  }
+}
+
+void ctgFreeDbCache(SCtgDBCache *dbCache) {
+  if (NULL == dbCache) {
+    return;
+  }
+
+  atomic_store_8(&dbCache->deleted, 1);
+
+  SDBVgroupInfo *dbInfo = NULL;
+  if (dbCache->vgInfo) {
+    CTG_LOCK(CTG_WRITE, &dbCache->vgLock);
+
+    if (dbCache->vgInfo->vgHash) {
+      taosHashCleanup(dbCache->vgInfo->vgHash);
+      dbCache->vgInfo->vgHash = NULL;
+    }
+
+    tfree(dbCache->vgInfo);
+    CTG_UNLOCK(CTG_WRITE, &dbCache->vgLock);
+  }
+
+  ctgFreeTableMetaCache(&dbCache->tbCache);
+}
+
+
+void ctgFreeHandle(struct SCatalog* pCatalog) {
+  ctgFreeMetaRent(&pCatalog->dbRent);
+  ctgFreeMetaRent(&pCatalog->stbRent);
+  if (pCatalog->dbCache) {
+    void *pIter = taosHashIterate(pCatalog->dbCache, NULL);
+    while (pIter) {
+      SCtgDBCache *dbCache = pIter;
+
+      ctgFreeDbCache(dbCache);
+      
+      pIter = taosHashIterate(pCatalog->dbCache, pIter);
+    }  
+
+    taosHashCleanup(pCatalog->dbCache);
+  }
+  
+  free(pCatalog);
+}
+
+
+int32_t ctgGetDBVgroupFromCache(struct SCatalog* pCatalog, const char *dbName, SCtgDBCache **dbCache, bool *inCache) {
+  if (NULL == pCatalog->dbCache) {
     *inCache = false;
     ctgWarn("empty db cache, dbName:%s", dbName);
     return TSDB_CODE_SUCCESS;
   }
 
-  SDBVgroupInfo *info = NULL;
+  SCtgDBCache *cache = NULL;
 
   while (true) {
-    info = taosHashAcquire(pCatalog->dbCache.cache, dbName, strlen(dbName));
+    cache = taosHashAcquire(pCatalog->dbCache, dbName, strlen(dbName));
 
-    if (NULL == info) {
+    if (NULL == cache) {
       *inCache = false;
       ctgWarn("not in db vgroup cache, dbName:%s", dbName);
       return TSDB_CODE_SUCCESS;
     }
 
-    CTG_LOCK(CTG_READ, &info->lock);
-    if (NULL == info->vgInfo) {
-      CTG_UNLOCK(CTG_READ, &info->lock);
-      taosHashRelease(pCatalog->dbCache.cache, info);
+    CTG_LOCK(CTG_READ, &cache->vgLock);
+    if (NULL == cache->vgInfo) {
+      CTG_UNLOCK(CTG_READ, &cache->vgLock);
+      taosHashRelease(pCatalog->dbCache, cache);
       ctgWarn("db cache vgInfo is NULL, dbName:%s", dbName);
       
       continue;
@@ -53,7 +128,7 @@ int32_t ctgGetDBVgroupFromCache(struct SCatalog* pCatalog, const char *dbName, S
     break;
   }
 
-  *dbInfo = info;
+  *dbCache = cache;
   *inCache = true;
 
   ctgDebug("Got db vgroup from cache, dbName:%s", dbName);
@@ -98,48 +173,73 @@ int32_t ctgGetDBVgroupFromMnode(struct SCatalog* pCatalog, void *pRpc, const SEp
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t ctgIsTableMetaExistInCache(struct SCatalog* pCatalog, const char* tbFullName, int32_t *exist) {
-  if (NULL == pCatalog->tableCache.cache) {
+int32_t ctgIsTableMetaExistInCache(struct SCatalog* pCatalog, char *dbFName, char* tbName, int32_t *exist) {
+  if (NULL == pCatalog->dbCache) {
     *exist = 0;
-    ctgWarn("empty tablemeta cache, tbName:%s", tbFullName);
+    ctgWarn("empty db cache, dbFName:%s, tbName:%s", dbFName, tbName);
     return TSDB_CODE_SUCCESS;
   }
 
-  size_t sz = 0;
-  STableMeta *tbMeta = taosHashGet(pCatalog->tableCache.cache, tbFullName, strlen(tbFullName));
+  SCtgDBCache *dbCache = taosHashAcquire(pCatalog->dbCache, dbFName, strlen(dbFName));
+  if (NULL == dbCache) {
+    *exist = 0;
+    ctgWarn("db not exist in cache, dbFName:%s", dbFName);
+    return TSDB_CODE_SUCCESS;
+  }
 
+
+  size_t sz = 0;
+  STableMeta *tbMeta = taosHashGet(dbCache->tbCache.cache, tbName, strlen(tbName));
   if (NULL == tbMeta) {
+    taosHashRelease(pCatalog->dbCache, dbCache);
+    
     *exist = 0;
-    ctgDebug("tablemeta not in cache, tbName:%s", tbFullName);
+    ctgDebug("tbmeta not in cache, dbFName:%s, tbName:%s", dbFName, tbName);
     return TSDB_CODE_SUCCESS;
   }
 
   *exist = 1;
+
+  taosHashRelease(pCatalog->dbCache, dbCache);
   
-  ctgDebug("tablemeta is in cache, tbName:%s", tbFullName);
+  ctgDebug("tbmeta is in cache, dbFName:%s, tbName:%s", dbFName, tbName);
   
   return TSDB_CODE_SUCCESS;
 }
 
 
 int32_t ctgGetTableMetaFromCache(struct SCatalog* pCatalog, const SName* pTableName, STableMeta** pTableMeta, int32_t *exist) {
-  if (NULL == pCatalog->tableCache.cache) {
+  if (NULL == pCatalog->dbCache) {
     *exist = 0;
-    ctgWarn("empty tablemeta cache, tbName:%s", pTableName->tname);
+    ctgWarn("empty tbmeta cache, tbName:%s", pTableName->tname);
     return TSDB_CODE_SUCCESS;
   }
 
-  char tbFullName[TSDB_TABLE_FNAME_LEN];
-  tNameExtractFullName(pTableName, tbFullName);
+  char db[TSDB_DB_FNAME_LEN] = {0};
+  tNameGetFullDbName(pTableName, db);
 
   *pTableMeta = NULL;
 
-  size_t sz = 0;
-  STableMeta *tbMeta = taosHashGetCloneExt(pCatalog->tableCache.cache, tbFullName, strlen(tbFullName), NULL, (void **)pTableMeta, &sz);
+  SCtgDBCache *dbCache = taosHashAcquire(pCatalog->dbCache, db, strlen(db));
+  if (NULL == dbCache) {
+    *exist = 0;
+    ctgWarn("no db cache, dbFName:%s, tbName:%s", db, pTableName->tname);
+    return TSDB_CODE_SUCCESS;
+  }
 
+  if (NULL == dbCache->tbCache.cache) {
+    *exist = 0;
+    taosHashRelease(pCatalog->dbCache, dbCache);
+    ctgWarn("empty tbmeta cache, dbFName:%s, tbName:%s", db, pTableName->tname);
+    return TSDB_CODE_SUCCESS;
+  }
+  
+  size_t sz = 0;
+  STableMeta *tbMeta = taosHashGetCloneExt(dbCache->tbCache.cache, pTableName->tname, strlen(pTableName->tname), NULL, (void **)pTableMeta, &sz);
   if (NULL == *pTableMeta) {
     *exist = 0;
-    ctgDebug("tablemeta not in cache, tbName:%s", tbFullName);
+    taosHashRelease(pCatalog->dbCache, dbCache);
+    ctgDebug("tbmeta not in cache, dbFName:%s, tbName:%s", db, pTableName->tname);
     return TSDB_CODE_SUCCESS;
   }
 
@@ -148,80 +248,91 @@ int32_t ctgGetTableMetaFromCache(struct SCatalog* pCatalog, const SName* pTableN
   tbMeta = *pTableMeta;
 
   if (tbMeta->tableType != TSDB_CHILD_TABLE) {
-    ctgDebug("Got tablemeta from cache, tbName:%s", tbFullName);
-
+    taosHashRelease(pCatalog->dbCache, dbCache);
+    ctgDebug("Got tbmeta from cache, type:%d, dbFName:%s, tbName:%s", tbMeta->tableType, db, pTableName->tname);
     return TSDB_CODE_SUCCESS;
   }
   
-  CTG_LOCK(CTG_READ, &pCatalog->tableCache.stableLock);
+  CTG_LOCK(CTG_READ, &dbCache->tbCache.stbLock);
   
-  STableMeta **stbMeta = taosHashGet(pCatalog->tableCache.stableCache, &tbMeta->suid, sizeof(tbMeta->suid));
+  STableMeta **stbMeta = taosHashGet(dbCache->tbCache.stbCache, &tbMeta->suid, sizeof(tbMeta->suid));
   if (NULL == stbMeta || NULL == *stbMeta) {
-    CTG_UNLOCK(CTG_READ, &pCatalog->tableCache.stableLock);
-    ctgError("stable not in stableCache, suid:%"PRIx64, tbMeta->suid);
+    CTG_UNLOCK(CTG_READ, &dbCache->tbCache.stbLock);
+    taosHashRelease(pCatalog->dbCache, dbCache);
+    ctgError("stable not in stbCache, suid:%"PRIx64, tbMeta->suid);
     tfree(*pTableMeta);
     *exist = 0;
     return TSDB_CODE_SUCCESS;
   }
 
   if ((*stbMeta)->suid != tbMeta->suid) {    
-    CTG_UNLOCK(CTG_READ, &pCatalog->tableCache.stableLock);
+    CTG_UNLOCK(CTG_READ, &dbCache->tbCache.stbLock);
+    taosHashRelease(pCatalog->dbCache, dbCache);
     tfree(*pTableMeta);
-    ctgError("stable suid in stableCache mis-match, expected suid:%"PRIx64 ",actual suid:%"PRIx64, tbMeta->suid, (*stbMeta)->suid);
+    ctgError("stable suid in stbCache mis-match, expected suid:%"PRIx64 ",actual suid:%"PRIx64, tbMeta->suid, (*stbMeta)->suid);
     CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
   }
 
   int32_t metaSize = sizeof(STableMeta) + ((*stbMeta)->tableInfo.numOfTags + (*stbMeta)->tableInfo.numOfColumns) * sizeof(SSchema);
   *pTableMeta = realloc(*pTableMeta, metaSize);
   if (NULL == *pTableMeta) {    
-    CTG_UNLOCK(CTG_READ, &pCatalog->tableCache.stableLock);
+    CTG_UNLOCK(CTG_READ, &dbCache->tbCache.stbLock);
+    taosHashRelease(pCatalog->dbCache, dbCache);
     ctgError("realloc size[%d] failed", metaSize);
     CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
   }
 
   memcpy(&(*pTableMeta)->sversion, &(*stbMeta)->sversion, metaSize - sizeof(SCTableMeta));
 
-  CTG_UNLOCK(CTG_READ, &pCatalog->tableCache.stableLock);
+  CTG_UNLOCK(CTG_READ, &dbCache->tbCache.stbLock);
+
+  taosHashRelease(pCatalog->dbCache, dbCache);
 
-  ctgDebug("Got tablemeta from cache, tbName:%s", tbFullName);
+  ctgDebug("Got tbmeta from cache, dbFName:%s, tbName:%s", db, pTableName->tname);
   
   return TSDB_CODE_SUCCESS;
 }
 
 int32_t ctgGetTableTypeFromCache(struct SCatalog* pCatalog, const SName* pTableName, int32_t *tbType) {
-  if (NULL == pCatalog->tableCache.cache) {
-    ctgWarn("empty tablemeta cache, tbName:%s", pTableName->tname);  
+  if (NULL == pCatalog->dbCache) {
+    ctgWarn("empty db cache, tbName:%s", pTableName->tname);  
     return TSDB_CODE_SUCCESS;
   }
 
-  char tbFullName[TSDB_TABLE_FNAME_LEN];
-  tNameExtractFullName(pTableName, tbFullName);
+  char dbName[TSDB_DB_FNAME_LEN] = {0};
+  tNameGetFullDbName(pTableName, dbName);
 
-  size_t sz = 0;
-  STableMeta *pTableMeta = NULL;
-  
-  taosHashGetCloneExt(pCatalog->tableCache.cache, tbFullName, strlen(tbFullName), NULL, (void **)&pTableMeta, &sz);
+  SCtgDBCache *dbCache = taosHashAcquire(pCatalog->dbCache, dbName, strlen(dbName));
+  if (NULL == dbCache) {
+    ctgInfo("db not in cache, dbFName:%s", dbName);
+    return TSDB_CODE_SUCCESS;
+  }
 
+  STableMeta *pTableMeta = (STableMeta *)taosHashAcquire(dbCache->tbCache.cache, pTableName->tname, strlen(pTableName->tname));
   if (NULL == pTableMeta) {
-    ctgWarn("tablemeta not in cache, tbName:%s", tbFullName);  
-  
+    ctgWarn("tbmeta not in cache, dbFName:%s, tbName:%s", dbName, pTableName->tname);  
+    taosHashRelease(pCatalog->dbCache, dbCache);
+    
     return TSDB_CODE_SUCCESS;
   }
 
-  *tbType = pTableMeta->tableType;
+  *tbType = atomic_load_8(&pTableMeta->tableType);
 
-  ctgDebug("Got tabletype from cache, tbName:%s, type:%d", tbFullName, *tbType);  
+  taosHashRelease(dbCache->tbCache.cache, dbCache);
+  taosHashRelease(pCatalog->dbCache, dbCache);
+
+  ctgDebug("Got tbtype from cache, dbFName:%s, tbName:%s, type:%d", dbName, pTableName->tname, *tbType);  
   
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t ctgGetTableMetaFromMnodeImpl(struct SCatalog* pCatalog, void *pTransporter, const SEpSet* pMgmtEps, char* tbFullName, STableMetaOutput* output) {
-  SBuildTableMetaInput bInput = {.vgId = 0, .dbName = NULL, .tableFullName = tbFullName};
+int32_t ctgGetTableMetaFromMnodeImpl(struct SCatalog* pCatalog, void *pTransporter, const SEpSet* pMgmtEps, char *dbFName, char* tbName, STableMetaOutput* output) {
+  SBuildTableMetaInput bInput = {.vgId = 0, .dbFName = dbFName, .tbName = tbName};
   char *msg = NULL;
   SEpSet *pVnodeEpSet = NULL;
   int32_t msgLen = 0;
 
-  ctgDebug("try to get table meta from mnode, tbName:%s", tbFullName);
+  ctgDebug("try to get table meta from mnode, dbFName:%s, tbName:%s", dbFName, tbName);
 
   int32_t code = queryBuildMsg[TMSG_INDEX(TDMT_MND_STB_META)](&bInput, &msg, 0, &msgLen);
   if (code) {
@@ -242,30 +353,30 @@ int32_t ctgGetTableMetaFromMnodeImpl(struct SCatalog* pCatalog, void *pTransport
   if (TSDB_CODE_SUCCESS != rpcRsp.code) {
     if (CTG_TABLE_NOT_EXIST(rpcRsp.code)) {
       SET_META_TYPE_NULL(output->metaType);
-      ctgDebug("stablemeta not exist in mnode, tbName:%s", tbFullName);
+      ctgDebug("stablemeta not exist in mnode, dbFName:%s, tbName:%s", dbFName, tbName);
       return TSDB_CODE_SUCCESS;
     }
     
-    ctgError("error rsp for stablemeta from mnode, code:%s, tbName:%s", tstrerror(rpcRsp.code), tbFullName);
+    ctgError("error rsp for stablemeta from mnode, code:%s, dbFName:%s, tbName:%s", tstrerror(rpcRsp.code), dbFName, tbName);
     CTG_ERR_RET(rpcRsp.code);
   }
 
   code = queryProcessMsgRsp[TMSG_INDEX(TDMT_MND_STB_META)](output, rpcRsp.pCont, rpcRsp.contLen);
   if (code) {
-    ctgError("Process mnode stablemeta rsp failed, code:%x, tbName:%s", code, tbFullName);
+    ctgError("Process mnode stablemeta rsp failed, code:%x, dbFName:%s, tbName:%s", code, dbFName, tbName);
     CTG_ERR_RET(code);
   }
 
-  ctgDebug("Got table meta from mnode, tbName:%s", tbFullName);
+  ctgDebug("Got table meta from mnode, dbFName:%s, tbName:%s", dbFName, tbName);
 
   return TSDB_CODE_SUCCESS;
 }
 
 int32_t ctgGetTableMetaFromMnode(struct SCatalog* pCatalog, void *pTransporter, const SEpSet* pMgmtEps, const SName* pTableName, STableMetaOutput* output) {
-  char tbFullName[TSDB_TABLE_FNAME_LEN];
-  tNameExtractFullName(pTableName, tbFullName);
+  char dbFName[TSDB_DB_FNAME_LEN];
+  tNameGetFullDbName(pTableName, dbFName);
 
-  return ctgGetTableMetaFromMnodeImpl(pCatalog, pTransporter, pMgmtEps, tbFullName, output);
+  return ctgGetTableMetaFromMnodeImpl(pCatalog, pTransporter, pMgmtEps, dbFName, (char *)pTableName->tname, output);
 }
 
 int32_t ctgGetTableMetaFromVnode(struct SCatalog* pCatalog, void *pTransporter, const SEpSet* pMgmtEps, const SName* pTableName, SVgroupInfo *vgroupInfo, STableMetaOutput* output) {
@@ -273,18 +384,18 @@ int32_t ctgGetTableMetaFromVnode(struct SCatalog* pCatalog, void *pTransporter,
     CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
   }
 
-  char dbFullName[TSDB_DB_FNAME_LEN];
-  tNameGetFullDbName(pTableName, dbFullName);
+  char dbFName[TSDB_DB_FNAME_LEN];
+  tNameGetFullDbName(pTableName, dbFName);
 
-  ctgDebug("try to get table meta from vnode, db:%s, tbName:%s", dbFullName, tNameGetTableName(pTableName));
+  ctgDebug("try to get table meta from vnode, dbFName:%s, tbName:%s", dbFName, tNameGetTableName(pTableName));
 
-  SBuildTableMetaInput bInput = {.vgId = vgroupInfo->vgId, .dbName = dbFullName, .tableFullName = (char *)tNameGetTableName(pTableName)};
+  SBuildTableMetaInput bInput = {.vgId = vgroupInfo->vgId, .dbFName = dbFName, .tbName = (char *)tNameGetTableName(pTableName)};
   char *msg = NULL;
   int32_t msgLen = 0;
 
   int32_t code = queryBuildMsg[TMSG_INDEX(TDMT_VND_TABLE_META)](&bInput, &msg, 0, &msgLen);
   if (code) {
-    ctgError("Build vnode tablemeta msg failed, code:%x, tbName:%s", code, tNameGetTableName(pTableName));
+    ctgError("Build vnode tablemeta msg failed, code:%x, dbFName:%s, tbName:%s", code, dbFName, tNameGetTableName(pTableName));
     CTG_ERR_RET(code);
   }
 
@@ -300,21 +411,21 @@ int32_t ctgGetTableMetaFromVnode(struct SCatalog* pCatalog, void *pTransporter,
   if (TSDB_CODE_SUCCESS != rpcRsp.code) {
     if (CTG_TABLE_NOT_EXIST(rpcRsp.code)) {
       SET_META_TYPE_NULL(output->metaType);
-      ctgDebug("tablemeta not exist in vnode, tbName:%s", tNameGetTableName(pTableName));
+      ctgDebug("tablemeta not exist in vnode, dbFName:%s, tbName:%s", dbFName, tNameGetTableName(pTableName));
       return TSDB_CODE_SUCCESS;
     }
   
-    ctgError("error rsp for table meta from vnode, code:%s, tbName:%s", tstrerror(rpcRsp.code), tNameGetTableName(pTableName));
+    ctgError("error rsp for table meta from vnode, code:%s, dbFName:%s, tbName:%s", tstrerror(rpcRsp.code), dbFName, tNameGetTableName(pTableName));
     CTG_ERR_RET(rpcRsp.code);
   }
 
   code = queryProcessMsgRsp[TMSG_INDEX(TDMT_VND_TABLE_META)](output, rpcRsp.pCont, rpcRsp.contLen);
   if (code) {
-    ctgError("Process vnode tablemeta rsp failed, code:%s, tbName:%s", tstrerror(code), tNameGetTableName(pTableName));
+    ctgError("Process vnode tablemeta rsp failed, code:%s, dbFName:%s, tbName:%s", tstrerror(code), dbFName, tNameGetTableName(pTableName));
     CTG_ERR_RET(code);
   }
 
-  ctgDebug("Got table meta from vnode, db:%s, tbName:%s", dbFullName, tNameGetTableName(pTableName));
+  ctgDebug("Got table meta from vnode, dbFName:%s, tbName:%s", dbFName, tNameGetTableName(pTableName));
   return TSDB_CODE_SUCCESS;
 }
 
@@ -334,7 +445,7 @@ int32_t ctgGetVgInfoFromDB(struct SCatalog *pCatalog, void *pRpc, const SEpSet *
   SVgroupInfo *vgInfo = NULL;
   SArray *vgList = NULL;
   int32_t code = 0;
-  int32_t vgNum = taosHashGetSize(dbInfo->vgInfo);
+  int32_t vgNum = taosHashGetSize(dbInfo->vgHash);
 
   vgList = taosArrayInit(vgNum, sizeof(SVgroupInfo));
   if (NULL == vgList) {
@@ -342,7 +453,7 @@ int32_t ctgGetVgInfoFromDB(struct SCatalog *pCatalog, void *pRpc, const SEpSet *
     CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);    
   }
 
-  void *pIter = taosHashIterate(dbInfo->vgInfo, NULL);
+  void *pIter = taosHashIterate(dbInfo->vgHash, NULL);
   while (pIter) {
     vgInfo = pIter;
 
@@ -351,7 +462,7 @@ int32_t ctgGetVgInfoFromDB(struct SCatalog *pCatalog, void *pRpc, const SEpSet *
       CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
     }
     
-    pIter = taosHashIterate(dbInfo->vgInfo, pIter);
+    pIter = taosHashIterate(dbInfo->vgHash, pIter);
     vgInfo = NULL;
   }
 
@@ -374,7 +485,7 @@ _return:
 int32_t ctgGetVgInfoFromHashValue(struct SCatalog *pCatalog, SDBVgroupInfo *dbInfo, const SName *pTableName, SVgroupInfo *pVgroup) {
   int32_t code = 0;
   
-  int32_t vgNum = taosHashGetSize(dbInfo->vgInfo);
+  int32_t vgNum = taosHashGetSize(dbInfo->vgHash);
   char db[TSDB_DB_FNAME_LEN] = {0};
   tNameGetFullDbName(pTableName, db);
 
@@ -386,40 +497,39 @@ int32_t ctgGetVgInfoFromHashValue(struct SCatalog *pCatalog, SDBVgroupInfo *dbIn
   tableNameHashFp fp = NULL;
   SVgroupInfo *vgInfo = NULL;
 
-  CTG_ERR_JRET(ctgGetHashFunction(dbInfo->hashMethod, &fp));
+  CTG_ERR_RET(ctgGetHashFunction(dbInfo->hashMethod, &fp));
 
   char tbFullName[TSDB_TABLE_FNAME_LEN];
   tNameExtractFullName(pTableName, tbFullName);
 
   uint32_t hashValue = (*fp)(tbFullName, (uint32_t)strlen(tbFullName));
 
-  void *pIter = taosHashIterate(dbInfo->vgInfo, NULL);
+  void *pIter = taosHashIterate(dbInfo->vgHash, NULL);
   while (pIter) {
     vgInfo = pIter;
     if (hashValue >= vgInfo->hashBegin && hashValue <= vgInfo->hashEnd) {
-      taosHashCancelIterate(dbInfo->vgInfo, pIter);
+      taosHashCancelIterate(dbInfo->vgHash, pIter);
       break;
     }
     
-    pIter = taosHashIterate(dbInfo->vgInfo, pIter);
+    pIter = taosHashIterate(dbInfo->vgHash, pIter);
     vgInfo = NULL;
   }
 
   if (NULL == vgInfo) {
-    ctgError("no hash range found for hash value [%u], db:%s, numOfVgId:%d", hashValue, db, taosHashGetSize(dbInfo->vgInfo));
-    CTG_ERR_JRET(TSDB_CODE_CTG_INTERNAL_ERROR);
+    ctgError("no hash range found for hash value [%u], db:%s, numOfVgId:%d", hashValue, db, taosHashGetSize(dbInfo->vgHash));
+    CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
   }
 
   *pVgroup = *vgInfo;
 
-_return:
   CTG_RET(code);
 }
 
 int32_t ctgSTableVersionCompare(const void* key1, const void* key2) {
-  if (((SSTableMetaVersion*)key1)->suid < ((SSTableMetaVersion*)key2)->suid) {
+  if (*(uint64_t *)key1 < ((SSTableMetaVersion*)key2)->suid) {
     return -1;
-  } else if (((SSTableMetaVersion*)key1)->suid > ((SSTableMetaVersion*)key2)->suid) {
+  } else if (*(uint64_t *)key1 > ((SSTableMetaVersion*)key2)->suid) {
     return 1;
   } else {
     return 0;
@@ -437,17 +547,17 @@ int32_t ctgDbVgVersionCompare(const void* key1, const void* key2) {
 }
 
 
-int32_t ctgMetaRentInit(SMetaRentMgmt *mgmt, uint32_t rentSec, int8_t type) {
+int32_t ctgMetaRentInit(SCtgRentMgmt *mgmt, uint32_t rentSec, int8_t type) {
   mgmt->slotRIdx = 0;
   mgmt->slotNum = rentSec / CTG_RENT_SLOT_SECOND;
   mgmt->type = type;
 
-  size_t msgSize = sizeof(SRentSlotInfo) * mgmt->slotNum;
+  size_t msgSize = sizeof(SCtgRentSlot) * mgmt->slotNum;
   
   mgmt->slots = calloc(1, msgSize);
   if (NULL == mgmt->slots) {
     qError("calloc %d failed", (int32_t)msgSize);
-    return TSDB_CODE_CTG_MEM_ERROR;
+    CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
   }
 
   qDebug("meta rent initialized, type:%d, slotNum:%d", type, mgmt->slotNum);
@@ -456,10 +566,10 @@ int32_t ctgMetaRentInit(SMetaRentMgmt *mgmt, uint32_t rentSec, int8_t type) {
 }
 
 
-int32_t ctgMetaRentAdd(SMetaRentMgmt *mgmt, void *meta, int64_t id, int32_t size) {
+int32_t ctgMetaRentAdd(SCtgRentMgmt *mgmt, void *meta, int64_t id, int32_t size) {
   int16_t widx = abs(id % mgmt->slotNum);
 
-  SRentSlotInfo *slot = &mgmt->slots[widx];
+  SCtgRentSlot *slot = &mgmt->slots[widx];
   int32_t code = 0;
   
   CTG_LOCK(CTG_WRITE, &slot->lock);
@@ -486,10 +596,10 @@ _return:
   CTG_RET(code);
 }
 
-int32_t ctgMetaRentUpdate(SMetaRentMgmt *mgmt, void *meta, int64_t id, int32_t size, __compar_fn_t compare) {
+int32_t ctgMetaRentUpdate(SCtgRentMgmt *mgmt, void *meta, int64_t id, int32_t size, __compar_fn_t compare) {
   int16_t widx = abs(id % mgmt->slotNum);
 
-  SRentSlotInfo *slot = &mgmt->slots[widx];
+  SCtgRentSlot *slot = &mgmt->slots[widx];
   int32_t code = 0;
   
   CTG_LOCK(CTG_WRITE, &slot->lock);
@@ -526,10 +636,10 @@ _return:
   CTG_RET(code);
 }
 
-int32_t ctgMetaRentRemove(SMetaRentMgmt *mgmt, int64_t id, __compar_fn_t compare) {
+int32_t ctgMetaRentRemove(SCtgRentMgmt *mgmt, int64_t id, __compar_fn_t compare) {
   int16_t widx = abs(id % mgmt->slotNum);
 
-  SRentSlotInfo *slot = &mgmt->slots[widx];
+  SCtgRentSlot *slot = &mgmt->slots[widx];
   int32_t code = 0;
   
   CTG_LOCK(CTG_WRITE, &slot->lock);
@@ -562,14 +672,14 @@ _return:
 }
 
 
-int32_t ctgMetaRentGetImpl(SMetaRentMgmt *mgmt, void **res, uint32_t *num, int32_t size) {
+int32_t ctgMetaRentGetImpl(SCtgRentMgmt *mgmt, void **res, uint32_t *num, int32_t size) {
   int16_t ridx = atomic_add_fetch_16(&mgmt->slotRIdx, 1);
   if (ridx >= mgmt->slotNum) {
     ridx %= mgmt->slotNum;
     atomic_store_16(&mgmt->slotRIdx, ridx);
   }
 
-  SRentSlotInfo *slot = &mgmt->slots[ridx];
+  SCtgRentSlot *slot = &mgmt->slots[ridx];
   int32_t code = 0;
   
   CTG_LOCK(CTG_READ, &slot->lock);
@@ -608,7 +718,7 @@ _return:
   CTG_RET(code);
 }
 
-int32_t ctgMetaRentGet(SMetaRentMgmt *mgmt, void **res, uint32_t *num, int32_t size) {
+int32_t ctgMetaRentGet(SCtgRentMgmt *mgmt, void **res, uint32_t *num, int32_t size) {
   while (true) {
     int64_t msec = taosGetTimestampMs();
     int64_t lsec = atomic_load_64(&mgmt->lastReadMsec);
@@ -635,52 +745,79 @@ int32_t ctgMetaRentGet(SMetaRentMgmt *mgmt, void **res, uint32_t *num, int32_t s
 
 int32_t ctgUpdateTableMetaCache(struct SCatalog *pCatalog, STableMetaOutput *output) {
   int32_t code = 0;
+  SCtgDBCache *dbCache = NULL;
 
   if ((!CTG_IS_META_CTABLE(output->metaType)) && NULL == output->tbMeta) {
-    ctgError("no valid table meta got from meta rsp, tbName:%s", output->tbFname);
+    ctgError("no valid tbmeta got from meta rsp, dbFName:%s, tbName:%s", output->dbFName, output->tbName);
     CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
   }
 
-  if (NULL == pCatalog->tableCache.cache) {
+  if (NULL == pCatalog->dbCache) {
+    SHashObj *cache = taosHashInit(ctgMgmt.cfg.maxDBCacheNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_ENTRY_LOCK);
+    if (NULL == cache) {
+      ctgError("taosHashInit %d failed", CTG_DEFAULT_CACHE_DB_NUMBER);
+      CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
+    }
+
+    if (NULL != atomic_val_compare_exchange_ptr(&pCatalog->dbCache, NULL, cache)) {
+      taosHashCleanup(cache);
+    }
+  }
+
+  while (true) {
+    dbCache = (SCtgDBCache *)taosHashAcquire(pCatalog->dbCache, output->dbFName, strlen(output->dbFName));
+    if (dbCache) {
+      break;
+    }
+    
+    SCtgDBCache newDbCache = {0};
+
+    if (taosHashPut(pCatalog->dbCache, output->dbFName, strlen(output->dbFName), &newDbCache, sizeof(newDbCache))) {
+      ctgError("taosHashPut db to cache failed, db:%s", output->dbFName);
+      CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
+    }
+  }
+
+  if (NULL == dbCache->tbCache.cache) {
     SHashObj *cache = taosHashInit(ctgMgmt.cfg.maxTblCacheNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_ENTRY_LOCK);
     if (NULL == cache) {
       ctgError("taosHashInit failed, num:%d", ctgMgmt.cfg.maxTblCacheNum);
-      CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
+      CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
     }
 
-    if (NULL != atomic_val_compare_exchange_ptr(&pCatalog->tableCache.cache, NULL, cache)) {
+    if (NULL != atomic_val_compare_exchange_ptr(&dbCache->tbCache.cache, NULL, cache)) {
       taosHashCleanup(cache);
     }
   }
 
-  if (NULL == pCatalog->tableCache.stableCache) {
+  if (NULL == dbCache->tbCache.stbCache) {
     SHashObj *cache = taosHashInit(ctgMgmt.cfg.maxTblCacheNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_UBIGINT), true, HASH_ENTRY_LOCK);
     if (NULL == cache) {
       ctgError("taosHashInit failed, num:%d", ctgMgmt.cfg.maxTblCacheNum);
-      CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
+      CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
     }
 
-    if (NULL != atomic_val_compare_exchange_ptr(&pCatalog->tableCache.stableCache, NULL, cache)) {
+    if (NULL != atomic_val_compare_exchange_ptr(&dbCache->tbCache.stbCache, NULL, cache)) {
       taosHashCleanup(cache);
     }
   }
 
   if (CTG_IS_META_CTABLE(output->metaType) || CTG_IS_META_BOTH(output->metaType)) {
-    if (taosHashPut(pCatalog->tableCache.cache, output->ctbFname, strlen(output->ctbFname), &output->ctbMeta, sizeof(output->ctbMeta)) != 0) {
-      ctgError("taosHashPut ctablemeta to cache failed, ctbName:%s", output->ctbFname);
-      CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
+    if (taosHashPut(dbCache->tbCache.cache, output->ctbName, strlen(output->ctbName), &output->ctbMeta, sizeof(output->ctbMeta)) != 0) {
+      ctgError("taosHashPut ctbmeta to cache failed, ctbName:%s", output->ctbName);
+      CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
     }
 
-    ctgDebug("update child tablemeta to cache, tbName:%s", output->ctbFname);
+    ctgDebug("ctbmeta updated to cache, ctbName:%s", output->ctbName);
   }
 
   if (CTG_IS_META_CTABLE(output->metaType)) {
-    return TSDB_CODE_SUCCESS;
+    goto _return;
   }
   
   if (CTG_IS_META_BOTH(output->metaType) && TSDB_SUPER_TABLE != output->tbMeta->tableType) {
     ctgError("table type error, expected:%d, actual:%d", TSDB_SUPER_TABLE, output->tbMeta->tableType);
-    CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
+    CTG_ERR_JRET(TSDB_CODE_CTG_INTERNAL_ERROR);
   }    
 
   int32_t tbSize = sizeof(*output->tbMeta) + sizeof(SSchema) * (output->tbMeta->tableInfo.numOfColumns + output->tbMeta->tableInfo.numOfTags);
@@ -688,45 +825,53 @@ int32_t ctgUpdateTableMetaCache(struct SCatalog *pCatalog, STableMetaOutput *out
   if (TSDB_SUPER_TABLE == output->tbMeta->tableType) {
     bool newAdded = false;
     SSTableMetaVersion metaRent = {.suid = output->tbMeta->suid, .sversion = output->tbMeta->sversion, .tversion = output->tbMeta->tversion};
+    strcpy(metaRent.dbFName, output->dbFName);
+    strcpy(metaRent.stbName, output->tbName);
     
-    CTG_LOCK(CTG_WRITE, &pCatalog->tableCache.stableLock);
-    if (taosHashPut(pCatalog->tableCache.cache, output->tbFname, strlen(output->tbFname), output->tbMeta, tbSize) != 0) {
-      CTG_UNLOCK(CTG_WRITE, &pCatalog->tableCache.stableLock);
-      ctgError("taosHashPut tablemeta to cache failed, tbName:%s", output->tbFname);
-      CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
+    CTG_LOCK(CTG_WRITE, &dbCache->tbCache.stbLock);
+    if (taosHashPut(dbCache->tbCache.cache, output->tbName, strlen(output->tbName), output->tbMeta, tbSize) != 0) {
+      CTG_UNLOCK(CTG_WRITE, &dbCache->tbCache.stbLock);
+      ctgError("taosHashPut tablemeta to cache failed, dbFName:%s, tbName:%s", output->dbFName, output->tbName);
+      CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
     }
 
-    STableMeta *tbMeta = taosHashGet(pCatalog->tableCache.cache, output->tbFname, strlen(output->tbFname));
-    if (taosHashPutExt(pCatalog->tableCache.stableCache, &output->tbMeta->suid, sizeof(output->tbMeta->suid), &tbMeta, POINTER_BYTES, &newAdded) != 0) {
-      CTG_UNLOCK(CTG_WRITE, &pCatalog->tableCache.stableLock);
+    STableMeta *tbMeta = taosHashGet(dbCache->tbCache.cache, output->tbName, strlen(output->tbName));
+    if (taosHashPutExt(dbCache->tbCache.stbCache, &output->tbMeta->suid, sizeof(output->tbMeta->suid), &tbMeta, POINTER_BYTES, &newAdded) != 0) {
+      CTG_UNLOCK(CTG_WRITE, &dbCache->tbCache.stbLock);
       ctgError("taosHashPutExt stable to stable cache failed, suid:%"PRIx64, output->tbMeta->suid);
-      CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
+      CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
     }
-    CTG_UNLOCK(CTG_WRITE, &pCatalog->tableCache.stableLock);
+    CTG_UNLOCK(CTG_WRITE, &dbCache->tbCache.stbLock);
 
     ctgDebug("update stable to cache, suid:%"PRIx64, output->tbMeta->suid);
 
     if (newAdded) {
-      CTG_ERR_RET(ctgMetaRentAdd(&pCatalog->stableRent, &metaRent, metaRent.suid, sizeof(SSTableMetaVersion)));
+      CTG_ERR_JRET(ctgMetaRentAdd(&pCatalog->stbRent, &metaRent, metaRent.suid, sizeof(SSTableMetaVersion)));
     } else {
-      CTG_ERR_RET(ctgMetaRentUpdate(&pCatalog->stableRent, &metaRent, metaRent.suid, sizeof(SSTableMetaVersion), ctgSTableVersionCompare));
+      CTG_ERR_JRET(ctgMetaRentUpdate(&pCatalog->stbRent, &metaRent, metaRent.suid, sizeof(SSTableMetaVersion), ctgSTableVersionCompare));
     }
   } else {
-    if (taosHashPut(pCatalog->tableCache.cache, output->tbFname, strlen(output->tbFname), output->tbMeta, tbSize) != 0) {
-      ctgError("taosHashPut tablemeta to cache failed, tbName:%s", output->tbFname);
-      CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
+    if (taosHashPut(dbCache->tbCache.cache, output->tbName, strlen(output->tbName), output->tbMeta, tbSize) != 0) {
+      ctgError("taosHashPut tablemeta to cache failed, dbFName:%s, tbName:%s", output->dbFName, output->tbName);
+      CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
     }
   }
 
-  ctgDebug("update tablemeta to cache, tbName:%s", output->tbFname);
+  ctgDebug("update tablemeta to cache, dbFName:%s, tbName:%s", output->dbFName, output->tbName);
+
+_return:
+
+  if (dbCache) {
+    taosHashRelease(pCatalog->dbCache, dbCache);
+  }
 
   CTG_RET(code);
 }
 
-int32_t ctgGetDBVgroup(struct SCatalog* pCatalog, void *pRpc, const SEpSet* pMgmtEps, const char* dbName, bool forceUpdate, SDBVgroupInfo** dbInfo) {
+int32_t ctgGetDBVgroup(struct SCatalog* pCatalog, void *pRpc, const SEpSet* pMgmtEps, const char* dbName, bool forceUpdate, SCtgDBCache** dbCache) {
   bool inCache = false;
   if (!forceUpdate) {
-    CTG_ERR_RET(ctgGetDBVgroupFromCache(pCatalog, dbName, dbInfo, &inCache));
+    CTG_ERR_RET(ctgGetDBVgroupFromCache(pCatalog, dbName, dbCache, &inCache));
     if (inCache) {
       return TSDB_CODE_SUCCESS;
     }
@@ -742,8 +887,8 @@ int32_t ctgGetDBVgroup(struct SCatalog* pCatalog, void *pRpc, const SEpSet* pMgm
 
   while (true) {
     CTG_ERR_RET(ctgGetDBVgroupFromMnode(pCatalog, pRpc, pMgmtEps, &input, &DbOut));
-    CTG_ERR_RET(catalogUpdateDBVgroup(pCatalog, dbName, &DbOut.dbVgroup));
-    CTG_ERR_RET(ctgGetDBVgroupFromCache(pCatalog, dbName, dbInfo, &inCache));
+    CTG_ERR_RET(catalogUpdateDBVgroup(pCatalog, dbName, DbOut.dbVgroup));
+    CTG_ERR_RET(ctgGetDBVgroupFromCache(pCatalog, dbName, dbCache, &inCache));
 
     if (!inCache) {
       ctgWarn("can't get db vgroup from cache, will retry, db:%s", dbName);
@@ -757,66 +902,83 @@ int32_t ctgGetDBVgroup(struct SCatalog* pCatalog, void *pRpc, const SEpSet* pMgm
 }
 
 
-int32_t ctgValidateAndFreeDbInfo(struct SCatalog* pCatalog, const char* dbName, SDBVgroupInfo* dbInfo) {
-  SDBVgroupInfo *oldInfo = (SDBVgroupInfo *)taosHashAcquire(pCatalog->dbCache.cache, dbName, strlen(dbName));
-  if (oldInfo) {
-    CTG_LOCK(CTG_WRITE, &oldInfo->lock);
-    if (dbInfo->vgVersion <= oldInfo->vgVersion) {
-      ctgInfo("db vgVersion is not new, db:%s, vgVersion:%d, current:%d", dbName, dbInfo->vgVersion, oldInfo->vgVersion);
-      CTG_UNLOCK(CTG_WRITE, &oldInfo->lock);
-      taosHashRelease(pCatalog->dbCache.cache, oldInfo);
-      
-      return TSDB_CODE_SUCCESS;
-    }
-    
-    if (oldInfo->vgInfo) {
-      ctgInfo("cleanup db vgInfo, db:%s", dbName);
-      taosHashCleanup(oldInfo->vgInfo);
-      oldInfo->vgInfo = NULL;
-    }
-    
-    CTG_UNLOCK(CTG_WRITE, &oldInfo->lock);
+int32_t ctgValidateAndRemoveDb(struct SCatalog* pCatalog, const char* dbName, uint64_t dbId, bool *removed) {
+  *removed = false;
+
+  SCtgDBCache *dbCache = (SCtgDBCache *)taosHashAcquire(pCatalog->dbCache, dbName, strlen(dbName));
+  if (NULL == dbCache) {
+    ctgInfo("db not exist in dbCache, may be removed, db:%s", dbName);
+    return TSDB_CODE_SUCCESS;
+  }
+  
+  CTG_LOCK(CTG_WRITE, &dbCache->vgLock);
+  
+  if (NULL == dbCache->vgInfo) {
+    ctgInfo("db vgInfo not in dbCache, may be removed, db:%s, dbId:%"PRIx64, dbName, dbId);
+    CTG_UNLOCK(CTG_WRITE, &dbCache->vgLock);
+    taosHashRelease(pCatalog->dbCache, dbCache);
+    return TSDB_CODE_SUCCESS;
+  }
   
-    taosHashRelease(pCatalog->dbCache.cache, oldInfo);
+  if (dbCache->vgInfo->dbId != dbId) {
+    ctgInfo("db id already updated, db:%s, dbId:%"PRIx64 ", targetId:%"PRIx64, dbName, dbCache->vgInfo->dbId, dbId);
+    CTG_UNLOCK(CTG_WRITE, &dbCache->vgLock);
+    taosHashRelease(pCatalog->dbCache, dbCache);
+    return TSDB_CODE_SUCCESS;
+  }
+    
+  if (dbCache->vgInfo->vgHash) {
+    ctgInfo("cleanup db vgInfo, db:%s, dbId:%"PRIx64, dbName, dbId);
+    taosHashCleanup(dbCache->vgInfo->vgHash);
+    tfree(dbCache->vgInfo);
+  }
+
+  if (taosHashRemove(pCatalog->dbCache, dbName, strlen(dbName))) {
+    ctgError("taosHashRemove from dbCache failed, db:%s", dbName);
+    CTG_UNLOCK(CTG_WRITE, &dbCache->vgLock);      
+    taosHashRelease(pCatalog->dbCache, dbCache);
+    CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
   }
 
+  dbCache->deleted = true;
+  
+  CTG_UNLOCK(CTG_WRITE, &dbCache->vgLock);
+
+  ctgFreeTableMetaCache(&dbCache->tbCache);
+
+  taosHashRelease(pCatalog->dbCache, dbCache);
+
+  *removed = true;
+  
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t ctgValidateAndRemoveDbInfo(struct SCatalog* pCatalog, SDbVgVersion* target, bool *removed) {
+int32_t ctgValidateAndRemoveStbMeta(struct SCatalog* pCatalog, const char* dbName, const char* stbName, uint64_t suid, bool *removed) {
   *removed = false;
 
-  SDBVgroupInfo *info = (SDBVgroupInfo *)taosHashAcquire(pCatalog->dbCache.cache, target->dbName, strlen(target->dbName));
-  if (NULL == info) {
-    ctgInfo("db not exist in dbCache, may be removed, db:%s", target->dbName);
+  SCtgDBCache *dbCache = (SCtgDBCache *)taosHashAcquire(pCatalog->dbCache, dbName, strlen(dbName));
+  if (NULL == dbCache) {
+    ctgInfo("db not exist in dbCache, may be removed, db:%s", dbName);
     return TSDB_CODE_SUCCESS;
   }
-  
-  CTG_LOCK(CTG_WRITE, &info->lock);
-  
-  if (info->dbId != target->dbId) {
-    ctgInfo("db id already updated, db:%s, dbId:%"PRIx64 ", targetId:%"PRIx64, target->dbName, info->dbId, target->dbId);
-    CTG_UNLOCK(CTG_WRITE, &info->lock);
-    taosHashRelease(pCatalog->dbCache.cache, info);
+
+  CTG_LOCK(CTG_WRITE, &dbCache->tbCache.stbLock);
+  if (taosHashRemove(dbCache->tbCache.stbCache, &suid, sizeof(suid))) {
+    CTG_UNLOCK(CTG_WRITE, &dbCache->tbCache.stbLock);
+    taosHashRelease(pCatalog->dbCache, dbCache);
+    ctgInfo("stb not exist in stbCache, may be removed, db:%s, stb:%s, suid:%"PRIx64, dbName, stbName, suid);
     return TSDB_CODE_SUCCESS;
   }
-    
-  if (info->vgInfo) {
-    ctgInfo("cleanup db vgInfo, db:%s", target->dbName);
-    taosHashCleanup(info->vgInfo);
-    info->vgInfo = NULL;
-  }
 
-  if (taosHashRemove(pCatalog->dbCache.cache, target->dbName, strlen(target->dbName))) {
-    ctgError("taosHashRemove from dbCache failed, db:%s", target->dbName);
-    CTG_UNLOCK(CTG_WRITE, &info->lock);      
-    taosHashRelease(pCatalog->dbCache.cache, info);
+  if (taosHashRemove(dbCache->tbCache.cache, stbName, strlen(stbName))) {
+    CTG_UNLOCK(CTG_WRITE, &dbCache->tbCache.stbLock);
+    taosHashRelease(pCatalog->dbCache, dbCache);
+    ctgError("stb not exist in cache, db:%s, stb:%s, suid:%"PRIx64, dbName, stbName, suid);
     CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
   }
+  CTG_UNLOCK(CTG_WRITE, &dbCache->tbCache.stbLock);
   
-  CTG_UNLOCK(CTG_WRITE, &info->lock);
-
-  taosHashRelease(pCatalog->dbCache.cache, info);
+  taosHashRelease(pCatalog->dbCache, dbCache);
 
   *removed = true;
   
@@ -824,6 +986,7 @@ int32_t ctgValidateAndRemoveDbInfo(struct SCatalog* pCatalog, SDbVgVersion* targ
 }
 
 
+
 int32_t ctgRenewTableMetaImpl(struct SCatalog* pCatalog, void *pTransporter, const SEpSet* pMgmtEps, const SName* pTableName, int32_t isSTable) {
   if (NULL == pCatalog || NULL == pTransporter || NULL == pMgmtEps || NULL == pTableName) {
     CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
@@ -839,7 +1002,7 @@ int32_t ctgRenewTableMetaImpl(struct SCatalog* pCatalog, void *pTransporter, con
   STableMetaOutput *output = &voutput;
 
   if (CTG_IS_STABLE(isSTable)) {
-    ctgDebug("will renew table meta, supposed to be stable, tbName:%s", tNameGetTableName(pTableName));
+    ctgDebug("will renew tbmeta, supposed to be stb, tbName:%s", tNameGetTableName(pTableName));
 
     // if get from mnode failed, will not try vnode
     CTG_ERR_JRET(ctgGetTableMetaFromMnode(pCatalog, pTransporter, pMgmtEps, pTableName, &moutput));
@@ -850,15 +1013,15 @@ int32_t ctgRenewTableMetaImpl(struct SCatalog* pCatalog, void *pTransporter, con
       output = &moutput;
     }
   } else {
-    ctgDebug("will renew table meta, not supposed to be stable, tbName:%s, isStable:%d", tNameGetTableName(pTableName), isSTable);
+    ctgDebug("will renew tbmeta, not supposed to be stb, tbName:%s, isStable:%d", tNameGetTableName(pTableName), isSTable);
 
     // if get from vnode failed or no table meta, will not try mnode
     CTG_ERR_JRET(ctgGetTableMetaFromVnode(pCatalog, pTransporter, pMgmtEps, pTableName, &vgroupInfo, &voutput));
 
     if (CTG_IS_META_TABLE(voutput.metaType) && TSDB_SUPER_TABLE == voutput.tbMeta->tableType) {
-      ctgDebug("will continue to renew table meta since got stable, tbName:%s, metaType:%d", tNameGetTableName(pTableName), voutput.metaType);
+      ctgDebug("will continue to renew tbmeta since got stb, tbName:%s, metaType:%d", tNameGetTableName(pTableName), voutput.metaType);
       
-      CTG_ERR_JRET(ctgGetTableMetaFromMnodeImpl(pCatalog, pTransporter, pMgmtEps, voutput.tbFname, &moutput));
+      CTG_ERR_JRET(ctgGetTableMetaFromMnodeImpl(pCatalog, pTransporter, pMgmtEps, voutput.dbFName, voutput.tbName, &moutput));
 
       voutput.metaType = moutput.metaType;
       
@@ -867,9 +1030,9 @@ int32_t ctgRenewTableMetaImpl(struct SCatalog* pCatalog, void *pTransporter, con
       moutput.tbMeta = NULL;
     } else if (CTG_IS_META_BOTH(voutput.metaType)) {
       int32_t exist = 0;
-      CTG_ERR_JRET(ctgIsTableMetaExistInCache(pCatalog, voutput.tbFname, &exist));
+      CTG_ERR_JRET(ctgIsTableMetaExistInCache(pCatalog, voutput.dbFName, voutput.tbName, &exist));
       if (0 == exist) {
-        CTG_ERR_JRET(ctgGetTableMetaFromMnodeImpl(pCatalog, pTransporter, pMgmtEps, voutput.tbFname, &moutput));
+        CTG_ERR_JRET(ctgGetTableMetaFromMnodeImpl(pCatalog, pTransporter, pMgmtEps, voutput.dbFName, voutput.tbName, &moutput));
 
         if (CTG_IS_META_NULL(moutput.metaType)) {
           SET_META_TYPE_NULL(voutput.metaType);
@@ -934,68 +1097,10 @@ int32_t ctgGetTableMeta(struct SCatalog* pCatalog, void *pRpc, const SEpSet* pMg
   return TSDB_CODE_SUCCESS;
 }
 
-void ctgFreeMetaRent(SMetaRentMgmt *mgmt) {
-  if (NULL == mgmt->slots) {
-    return;
-  }
-
-  for (int32_t i = 0; i < mgmt->slotNum; ++i) {
-    SRentSlotInfo *slot = &mgmt->slots[i];
-    if (slot->meta) {
-      taosArrayDestroy(slot->meta);
-      slot->meta = NULL;
-    }
-  }
-
-  tfree(mgmt->slots);
-}
-
-void ctgFreeDbCache(SDBVgroupCache *db) {
-  if (NULL == db->cache) {
-    return;
-  }
-
-  SDBVgroupInfo *dbInfo = NULL;
-  void *pIter = taosHashIterate(db->cache, NULL);
-  while (pIter) {
-    dbInfo = pIter;
-
-    if (dbInfo->vgInfo) {
-      taosHashCleanup(dbInfo->vgInfo);
-      dbInfo->vgInfo = NULL;
-    }
-    
-    pIter = taosHashIterate(db->cache, pIter);
-  }
-
-  taosHashCleanup(db->cache);
-  db->cache = NULL;
-}
-
-void ctgFreeTableMetaCache(STableMetaCache *table) {
-  if (table->stableCache) {
-    taosHashCleanup(table->stableCache);
-    table->stableCache = NULL;
-  }
-
-  if (table->cache) {
-    taosHashCleanup(table->cache);
-    table->cache = NULL;
-  }
-}
-
-void ctgFreeHandle(struct SCatalog* pCatalog) {
-  ctgFreeMetaRent(&pCatalog->dbRent);
-  ctgFreeMetaRent(&pCatalog->stableRent);
-  ctgFreeDbCache(&pCatalog->dbCache);
-  ctgFreeTableMetaCache(&pCatalog->tableCache);
-  
-  free(pCatalog);
-}
 
 int32_t catalogInit(SCatalogCfg *cfg) {
   if (ctgMgmt.pCluster) {
-    qError("catalog already init");
+    qError("catalog already initialized");
     CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
   }
 
@@ -1014,14 +1119,14 @@ int32_t catalogInit(SCatalogCfg *cfg) {
       ctgMgmt.cfg.dbRentSec = CTG_DEFAULT_RENT_SECOND;
     }
 
-    if (ctgMgmt.cfg.stableRentSec == 0) {
-      ctgMgmt.cfg.stableRentSec = CTG_DEFAULT_RENT_SECOND;
+    if (ctgMgmt.cfg.stbRentSec == 0) {
+      ctgMgmt.cfg.stbRentSec = CTG_DEFAULT_RENT_SECOND;
     }
   } else {
     ctgMgmt.cfg.maxDBCacheNum = CTG_DEFAULT_CACHE_DB_NUMBER;
     ctgMgmt.cfg.maxTblCacheNum = CTG_DEFAULT_CACHE_TABLEMETA_NUMBER;
     ctgMgmt.cfg.dbRentSec = CTG_DEFAULT_RENT_SECOND;
-    ctgMgmt.cfg.stableRentSec = CTG_DEFAULT_RENT_SECOND;
+    ctgMgmt.cfg.stbRentSec = CTG_DEFAULT_RENT_SECOND;
   }
 
   ctgMgmt.pCluster = taosHashInit(CTG_DEFAULT_CACHE_CLUSTER_NUMBER, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_ENTRY_LOCK);
@@ -1030,7 +1135,7 @@ int32_t catalogInit(SCatalogCfg *cfg) {
     CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
   }
 
-  qDebug("catalog initialized, maxDb:%u, maxTbl:%u, dbRentSec:%u, stableRentSec:%u", ctgMgmt.cfg.maxDBCacheNum, ctgMgmt.cfg.maxTblCacheNum, ctgMgmt.cfg.dbRentSec, ctgMgmt.cfg.stableRentSec);
+  qDebug("catalog initialized, maxDb:%u, maxTbl:%u, dbRentSec:%u, stbRentSec:%u", ctgMgmt.cfg.maxDBCacheNum, ctgMgmt.cfg.maxTblCacheNum, ctgMgmt.cfg.dbRentSec, ctgMgmt.cfg.stbRentSec);
 
   return TSDB_CODE_SUCCESS;
 }
@@ -1041,7 +1146,7 @@ int32_t catalogGetHandle(uint64_t clusterId, struct SCatalog** catalogHandle) {
   }
 
   if (NULL == ctgMgmt.pCluster) {
-    qError("cluster cache are not ready, clusterId:%"PRIx64, clusterId);
+    qError("catalog cluster cache are not ready, clusterId:%"PRIx64, clusterId);
     CTG_ERR_RET(TSDB_CODE_CTG_NOT_READY);
   }
 
@@ -1066,7 +1171,7 @@ int32_t catalogGetHandle(uint64_t clusterId, struct SCatalog** catalogHandle) {
     clusterCtg->clusterId = clusterId;
 
     CTG_ERR_JRET(ctgMetaRentInit(&clusterCtg->dbRent, ctgMgmt.cfg.dbRentSec, CTG_RENT_DB));
-    CTG_ERR_JRET(ctgMetaRentInit(&clusterCtg->stableRent, ctgMgmt.cfg.stableRentSec, CTG_RENT_STABLE));
+    CTG_ERR_JRET(ctgMetaRentInit(&clusterCtg->stbRent, ctgMgmt.cfg.stbRentSec, CTG_RENT_STABLE));
 
     code = taosHashPut(ctgMgmt.pCluster, &clusterId, sizeof(clusterId), &clusterCtg, POINTER_BYTES);
     if (code) {
@@ -1117,21 +1222,33 @@ int32_t catalogGetDBVgroupVersion(struct SCatalog* pCatalog, const char* dbName,
     CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
   }
 
-  if (NULL == pCatalog->dbCache.cache) {
+  if (NULL == pCatalog->dbCache) {
     *version = CTG_DEFAULT_INVALID_VERSION;
     ctgInfo("empty db cache, dbName:%s", dbName);
     return TSDB_CODE_SUCCESS;
   }
 
-  SDBVgroupInfo * dbInfo = taosHashAcquire(pCatalog->dbCache.cache, dbName, strlen(dbName));
-  if (NULL == dbInfo) {
+  SCtgDBCache *db = taosHashAcquire(pCatalog->dbCache, dbName, strlen(dbName));
+  if (NULL == db) {
     *version = CTG_DEFAULT_INVALID_VERSION;
     ctgInfo("db not in cache, dbName:%s", dbName);
     return TSDB_CODE_SUCCESS;
   }
 
-  *version = dbInfo->vgVersion;
-  taosHashRelease(pCatalog->dbCache.cache, dbInfo);
+  CTG_LOCK(CTG_READ, &db->vgLock);
+  
+  if (NULL == db->vgInfo) {
+    CTG_UNLOCK(CTG_READ, &db->vgLock);
+
+    *version = CTG_DEFAULT_INVALID_VERSION;
+    ctgInfo("db not in cache, dbName:%s", dbName);
+    return TSDB_CODE_SUCCESS;
+  }
+
+  *version = db->vgInfo->vgVersion;
+  CTG_UNLOCK(CTG_READ, &db->vgLock);
+  
+  taosHashRelease(pCatalog->dbCache, db);
 
   ctgDebug("Got db vgVersion from cache, dbName:%s, vgVersion:%d", dbName, *version);
 
@@ -1143,29 +1260,31 @@ int32_t catalogGetDBVgroup(struct SCatalog* pCatalog, void *pRpc, const SEpSet*
     CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
   }
 
-  SDBVgroupInfo* db   = NULL;
+  SCtgDBCache* dbCache   = NULL;
   SVgroupInfo *vgInfo = NULL;
 
   int32_t code = 0;
   SArray *vgList = NULL;
-  CTG_ERR_JRET(ctgGetDBVgroup(pCatalog, pRpc, pMgmtEps, dbName, forceUpdate, &db));
+  CTG_ERR_JRET(ctgGetDBVgroup(pCatalog, pRpc, pMgmtEps, dbName, forceUpdate, &dbCache));
 
-  vgList = taosArrayInit(taosHashGetSize(db->vgInfo), sizeof(SVgroupInfo));
+  int32_t vgNum = (int32_t)taosHashGetSize(dbCache->vgInfo->vgHash);
+  vgList = taosArrayInit(vgNum, sizeof(SVgroupInfo));
   if (NULL == vgList) {
-    ctgError("taosArrayInit %d failed", taosHashGetSize(db->vgInfo));
+    ctgError("taosArrayInit %d failed", vgNum);
     CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);    
   }
 
-  void *pIter = taosHashIterate(db->vgInfo, NULL);
+  void *pIter = taosHashIterate(dbCache->vgInfo->vgHash, NULL);
   while (pIter) {
     vgInfo = pIter;
 
     if (NULL == taosArrayPush(vgList, vgInfo)) {
       ctgError("taosArrayPush failed, vgId:%d", vgInfo->vgId);
+      taosHashCancelIterate(dbCache->vgInfo->vgHash, pIter);
       CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
     }
     
-    pIter = taosHashIterate(db->vgInfo, pIter);
+    pIter = taosHashIterate(dbCache->vgInfo->vgHash, pIter);
     vgInfo = NULL;
   }
 
@@ -1173,9 +1292,10 @@ int32_t catalogGetDBVgroup(struct SCatalog* pCatalog, void *pRpc, const SEpSet*
   vgList = NULL;
 
 _return:
-  if (db) {
-    CTG_UNLOCK(CTG_READ, &db->lock);
-    taosHashRelease(pCatalog->dbCache.cache, db);
+
+  if (dbCache) {
+    CTG_UNLOCK(CTG_READ, &dbCache->vgLock);
+    taosHashRelease(pCatalog->dbCache, dbCache);
   }
 
   if (vgList) {
@@ -1194,80 +1314,143 @@ int32_t catalogUpdateDBVgroup(struct SCatalog* pCatalog, const char* dbName, SDB
     CTG_ERR_JRET(TSDB_CODE_CTG_INVALID_INPUT);
   }
 
-  if (NULL == dbInfo->vgInfo || dbInfo->vgVersion < 0 || taosHashGetSize(dbInfo->vgInfo) <= 0) {
-    ctgError("invalid db vgInfo, dbName:%s, vgInfo:%p, vgVersion:%d", dbName, dbInfo->vgInfo, dbInfo->vgVersion);
+  if (NULL == dbInfo->vgHash || dbInfo->vgVersion < 0 || taosHashGetSize(dbInfo->vgHash) <= 0) {
+    ctgError("invalid db vgInfo, dbName:%s, vgHash:%p, vgVersion:%d", dbName, dbInfo->vgHash, dbInfo->vgVersion);
     CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
   }
 
-  if (NULL == pCatalog->dbCache.cache) {
+  if (NULL == pCatalog->dbCache) {
     SHashObj *cache = taosHashInit(ctgMgmt.cfg.maxDBCacheNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_ENTRY_LOCK);
     if (NULL == cache) {
       ctgError("taosHashInit %d failed", CTG_DEFAULT_CACHE_DB_NUMBER);
       CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
     }
 
-    if (NULL != atomic_val_compare_exchange_ptr(&pCatalog->dbCache.cache, NULL, cache)) {
+    if (NULL != atomic_val_compare_exchange_ptr(&pCatalog->dbCache, NULL, cache)) {
       taosHashCleanup(cache);
     }
-  } else {
-    CTG_ERR_JRET(ctgValidateAndFreeDbInfo(pCatalog, dbName, dbInfo));
   }
 
   bool newAdded = false;
-  
-  dbInfo->lock = 0;
-  if (taosHashPutExt(pCatalog->dbCache.cache, dbName, strlen(dbName), dbInfo, sizeof(*dbInfo), &newAdded) != 0) {
-    ctgError("taosHashPutExt db vgroup to cache failed, db:%s", dbName);
-    CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
+  SDbVgVersion vgVersion = {.dbId = dbInfo->dbId, .vgVersion = dbInfo->vgVersion};
+
+  SCtgDBCache *dbCache = (SCtgDBCache *)taosHashAcquire(pCatalog->dbCache, dbName, strlen(dbName));
+  if (dbCache) {
+    CTG_LOCK(CTG_WRITE, &dbCache->vgLock);
+    
+    if (NULL == dbCache->vgInfo) {
+      newAdded = true;
+
+      dbCache->vgInfo = dbInfo;
+    } else {
+      if (dbCache->vgInfo->dbId != dbInfo->dbId) {
+        ctgMetaRentRemove(&pCatalog->dbRent, dbCache->vgInfo->dbId, ctgDbVgVersionCompare);
+        newAdded = true;
+      } else if (dbInfo->vgVersion <= dbCache->vgInfo->vgVersion) {
+        ctgInfo("db vgVersion is old, db:%s, vgVersion:%d, current:%d", dbName, dbInfo->vgVersion, dbCache->vgInfo->vgVersion);
+        CTG_UNLOCK(CTG_WRITE, &dbCache->vgLock);
+        taosHashRelease(pCatalog->dbCache, dbCache);
+        
+        goto _return;
+      }
+      
+      if (dbCache->vgInfo->vgHash) {
+        ctgInfo("cleanup db vgHash, db:%s", dbName);
+        taosHashCleanup(dbCache->vgInfo->vgHash);
+        dbCache->vgInfo->vgHash = NULL;
+      }
+
+      tfree(dbCache->vgInfo);
+      dbCache->vgInfo = dbInfo;
+    }
+
+    CTG_UNLOCK(CTG_WRITE, &dbCache->vgLock);
+    taosHashRelease(pCatalog->dbCache, dbCache);
+  } else {
+    SCtgDBCache newDBCache = {0};
+    newDBCache.vgInfo = dbInfo;
+    
+    if (taosHashPut(pCatalog->dbCache, dbName, strlen(dbName), &newDBCache, sizeof(newDBCache)) != 0) {
+      ctgError("taosHashPut db & db vgroup to cache failed, db:%s", dbName);
+      CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
+    }
+
+    newAdded = true;
   }
 
-  dbInfo->vgInfo = NULL;
+  dbInfo = NULL;
 
-  SDbVgVersion vgVersion = {.dbId = dbInfo->dbId, .vgVersion = dbInfo->vgVersion};
-  strncpy(vgVersion.dbName, dbName, sizeof(vgVersion.dbName));
+  strncpy(vgVersion.dbFName, dbName, sizeof(vgVersion.dbFName));
   
   if (newAdded) {
-    CTG_ERR_JRET(ctgMetaRentAdd(&pCatalog->dbRent, &vgVersion, dbInfo->dbId, sizeof(SDbVgVersion)));
+    CTG_ERR_JRET(ctgMetaRentAdd(&pCatalog->dbRent, &vgVersion, vgVersion.dbId, sizeof(SDbVgVersion)));
   } else {
-    CTG_ERR_JRET(ctgMetaRentUpdate(&pCatalog->dbRent, &vgVersion, dbInfo->dbId, sizeof(SDbVgVersion), ctgDbVgVersionCompare));
+    CTG_ERR_JRET(ctgMetaRentUpdate(&pCatalog->dbRent, &vgVersion, vgVersion.dbId, sizeof(SDbVgVersion), ctgDbVgVersionCompare));
   }
   
-  ctgDebug("dbName:%s vgroup updated, vgVersion:%d", dbName, dbInfo->vgVersion);
+  ctgDebug("dbName:%s vgroup updated, vgVersion:%d", dbName, vgVersion.vgVersion);
 
 
 _return:
 
-  if (dbInfo && dbInfo->vgInfo) {
-    taosHashCleanup(dbInfo->vgInfo);
-    dbInfo->vgInfo = NULL;
+  if (dbInfo) {
+    taosHashCleanup(dbInfo->vgHash);
+    dbInfo->vgHash = NULL;
+    tfree(dbInfo);
   }
   
   CTG_RET(code);
 }
 
 
-int32_t catalogRemoveDBVgroup(struct SCatalog* pCatalog, SDbVgVersion* dbInfo) {
+int32_t catalogRemoveDB(struct SCatalog* pCatalog, const char* dbName, uint64_t dbId) {
   int32_t code = 0;
   bool removed = false;
   
-  if (NULL == pCatalog || NULL == dbInfo) {
+  if (NULL == pCatalog || NULL == dbName) {
     CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
   }
 
-  if (NULL == pCatalog->dbCache.cache) {
+  if (NULL == pCatalog->dbCache) {
     return TSDB_CODE_SUCCESS;
   }
   
-  CTG_ERR_RET(ctgValidateAndRemoveDbInfo(pCatalog, dbInfo, &removed));
+  CTG_ERR_RET(ctgValidateAndRemoveDb(pCatalog, dbName, dbId, &removed));
   if (!removed) {
     return TSDB_CODE_SUCCESS;
   }
   
-  ctgInfo("db removed from cache, db:%s", dbInfo->dbName);
+  ctgInfo("db removed from cache, db:%s, uid:%"PRIx64, dbName, dbId);
 
-  CTG_ERR_RET(ctgMetaRentRemove(&pCatalog->dbRent, dbInfo->dbId, ctgDbVgVersionCompare));
+  CTG_ERR_RET(ctgMetaRentRemove(&pCatalog->dbRent, dbId, ctgDbVgVersionCompare));
   
-  ctgDebug("db removed from rent, db:%s", dbInfo->dbName);
+  ctgDebug("db removed from rent, db:%s, uid:%"PRIx64, dbName, dbId);
+  
+  CTG_RET(code);
+}
+
+int32_t catalogRemoveSTableMeta(struct SCatalog* pCatalog, const char* dbName, const char* stbName, uint64_t suid) {
+  int32_t code = 0;
+  bool removed = false;
+  
+  if (NULL == pCatalog || NULL == dbName || NULL == stbName) {
+    CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
+  }
+
+  if (NULL == pCatalog->dbCache) {
+    return TSDB_CODE_SUCCESS;
+  }
+  
+  CTG_ERR_RET(ctgValidateAndRemoveStbMeta(pCatalog, dbName, stbName, suid, &removed));
+  if (!removed) {
+    return TSDB_CODE_SUCCESS;
+  }
+  
+  ctgInfo("stb removed from cache, db:%s, stbName:%s, suid:%"PRIx64, dbName, stbName, suid);
+
+  CTG_ERR_RET(ctgMetaRentRemove(&pCatalog->stbRent, suid, ctgSTableVersionCompare));
+  
+  ctgDebug("stb removed from rent, db:%s, stbName:%s, suid:%"PRIx64, dbName, stbName, suid);
   
   CTG_RET(code);
 }
@@ -1301,7 +1484,7 @@ int32_t catalogGetTableDistVgroup(struct SCatalog* pCatalog, void *pRpc, const S
   STableMeta *tbMeta = NULL;
   int32_t code = 0;
   SVgroupInfo vgroupInfo = {0};
-  SDBVgroupInfo* dbVgroup = NULL;
+  SCtgDBCache* dbCache = NULL;
   SArray *vgList = NULL;
 
   *pVgroupList = NULL;
@@ -1310,7 +1493,7 @@ int32_t catalogGetTableDistVgroup(struct SCatalog* pCatalog, void *pRpc, const S
 
   char db[TSDB_DB_FNAME_LEN] = {0};
   tNameGetFullDbName(pTableName, db);
-  CTG_ERR_JRET(ctgGetDBVgroup(pCatalog, pRpc, pMgmtEps, db, false, &dbVgroup));
+  CTG_ERR_JRET(ctgGetDBVgroup(pCatalog, pRpc, pMgmtEps, db, false, &dbCache));
 
   // REMOEV THIS ....
   if (0 == tbMeta->vgId) {
@@ -1323,10 +1506,10 @@ int32_t catalogGetTableDistVgroup(struct SCatalog* pCatalog, void *pRpc, const S
   // REMOVE THIS ....
 
   if (tbMeta->tableType == TSDB_SUPER_TABLE) {
-    CTG_ERR_JRET(ctgGetVgInfoFromDB(pCatalog, pRpc, pMgmtEps, dbVgroup, pVgroupList));
+    CTG_ERR_JRET(ctgGetVgInfoFromDB(pCatalog, pRpc, pMgmtEps, dbCache->vgInfo, pVgroupList));
   } else {
     int32_t vgId = tbMeta->vgId;
-    if (NULL == taosHashGetClone(dbVgroup->vgInfo, &vgId, sizeof(vgId), &vgroupInfo)) {
+    if (NULL == taosHashGetClone(dbCache->vgInfo->vgHash, &vgId, sizeof(vgId), &vgroupInfo)) {
       ctgError("table's vgId not found in vgroup list, vgId:%d, tbName:%s", vgId, tNameGetTableName(pTableName));
       CTG_ERR_JRET(TSDB_CODE_CTG_INTERNAL_ERROR);    
     }
@@ -1349,9 +1532,9 @@ int32_t catalogGetTableDistVgroup(struct SCatalog* pCatalog, void *pRpc, const S
 _return:
   tfree(tbMeta);
 
-  if (dbVgroup) {
-    CTG_UNLOCK(CTG_READ, &dbVgroup->lock);
-    taosHashRelease(pCatalog->dbCache.cache, dbVgroup);
+  if (dbCache) {
+    CTG_UNLOCK(CTG_READ, &dbCache->vgLock);
+    taosHashRelease(pCatalog->dbCache, dbCache);
   }
 
   if (vgList) {
@@ -1364,21 +1547,21 @@ _return:
 
 
 int32_t catalogGetTableHashVgroup(struct SCatalog *pCatalog, void *pTransporter, const SEpSet *pMgmtEps, const SName *pTableName, SVgroupInfo *pVgroup) {
-  SDBVgroupInfo* dbInfo = NULL;
+  SCtgDBCache* dbCache = NULL;
   int32_t code = 0;
 
   char db[TSDB_DB_FNAME_LEN] = {0};
   tNameGetFullDbName(pTableName, db);
 
-  CTG_ERR_RET(ctgGetDBVgroup(pCatalog, pTransporter, pMgmtEps, db, false, &dbInfo));
+  CTG_ERR_RET(ctgGetDBVgroup(pCatalog, pTransporter, pMgmtEps, db, false, &dbCache));
 
-  CTG_ERR_JRET(ctgGetVgInfoFromHashValue(pCatalog, dbInfo, pTableName, pVgroup));
+  CTG_ERR_JRET(ctgGetVgInfoFromHashValue(pCatalog, dbCache->vgInfo, pTableName, pVgroup));
 
 _return:
 
-  if (dbInfo) {
-    CTG_UNLOCK(CTG_READ, &dbInfo->lock);  
-    taosHashRelease(pCatalog->dbCache.cache, dbInfo);
+  if (dbCache) {
+    CTG_UNLOCK(CTG_READ, &dbCache->vgLock);  
+    taosHashRelease(pCatalog->dbCache, dbCache);
   }
 
   CTG_RET(code);
@@ -1422,6 +1605,7 @@ int32_t catalogGetAllMeta(struct SCatalog* pCatalog, void *pTransporter, const S
   return TSDB_CODE_SUCCESS;
 
 _return:  
+
   if (pRsp->pTableMeta) {
     int32_t aSize = taosArrayGetSize(pRsp->pTableMeta);
     for (int32_t i = 0; i < aSize; ++i) {
@@ -1451,7 +1635,7 @@ int32_t catalogGetExpiredSTables(struct SCatalog* pCatalog, SSTableMetaVersion *
     CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
   }
 
-  CTG_RET(ctgMetaRentGet(&pCatalog->stableRent, (void **)stables, num, sizeof(SSTableMetaVersion)));
+  CTG_RET(ctgMetaRentGet(&pCatalog->stbRent, (void **)stables, num, sizeof(SSTableMetaVersion)));
 }
 
 int32_t catalogGetExpiredDBs(struct SCatalog* pCatalog, SDbVgVersion **dbs, uint32_t *num) {

source/libs/catalog/test/catalogTests.cpp

@@ -128,15 +128,14 @@ void ctgTestBuildCTableMetaOutput(STableMetaOutput *output) {
   strcpy(sn.dbname, "db1");
   strcpy(sn.tname, ctgTestSTablename);
 
-  char tbFullName[TSDB_TABLE_FNAME_LEN];
-  tNameExtractFullName(&cn, tbFullName);
+  char db[TSDB_DB_FNAME_LEN] = {0};
+  tNameGetFullDbName(&cn, db);
 
+  strcpy(output->dbFName, db);
   SET_META_TYPE_BOTH_TABLE(output->metaType);
 
-  strcpy(output->ctbFname, tbFullName);
-
-  tNameExtractFullName(&cn, tbFullName);
-  strcpy(output->tbFname, tbFullName);
+  strcpy(output->ctbName, cn.tname);
+  strcpy(output->tbName, sn.tname);
 
   output->ctbMeta.vgId = 9;
   output->ctbMeta.tableType = TSDB_CHILD_TABLE;
@@ -175,10 +174,11 @@ void ctgTestBuildCTableMetaOutput(STableMetaOutput *output) {
   strcpy(s->name, "tag1s");
 }
 
-void ctgTestBuildDBVgroup(SDBVgroupInfo *dbVgroup) {
+void ctgTestBuildDBVgroup(SDBVgroupInfo **pdbVgroup) {
   static int32_t vgVersion = ctgTestVgVersion + 1;
   int32_t        vgNum = 0;
   SVgroupInfo    vgInfo = {0};
+  SDBVgroupInfo *dbVgroup = (SDBVgroupInfo *)calloc(1, sizeof(SDBVgroupInfo));
 
   dbVgroup->vgVersion = vgVersion++;
 
@@ -186,7 +186,7 @@ void ctgTestBuildDBVgroup(SDBVgroupInfo *dbVgroup) {
 
   dbVgroup->hashMethod = 0;
   dbVgroup->dbId = ctgTestDbId;
-  dbVgroup->vgInfo = taosHashInit(ctgTestVgNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_ENTRY_LOCK);
+  dbVgroup->vgHash = taosHashInit(ctgTestVgNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_ENTRY_LOCK);
 
   vgNum = ctgTestGetVgNumFromVgVersion(dbVgroup->vgVersion);
   uint32_t hashUnit = UINT32_MAX / vgNum;
@@ -203,8 +203,10 @@ void ctgTestBuildDBVgroup(SDBVgroupInfo *dbVgroup) {
       addr->port = htons(n + 22);
     }
 
-    taosHashPut(dbVgroup->vgInfo, &vgInfo.vgId, sizeof(vgInfo.vgId), &vgInfo, sizeof(vgInfo));
+    taosHashPut(dbVgroup->vgHash, &vgInfo.vgId, sizeof(vgInfo.vgId), &vgInfo, sizeof(vgInfo));
   }
+
+  *pdbVgroup = dbVgroup;
 }
 
 void ctgTestPrepareDbVgroups(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpcMsg *pRsp) {
@@ -250,7 +252,8 @@ void ctgTestPrepareTableMeta(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpcM
   pRsp->contLen = sizeof(STableMetaRsp) + (ctgTestColNum + ctgTestTagNum) * sizeof(SSchema);
   pRsp->pCont = calloc(1, pRsp->contLen);
   rspMsg = (STableMetaRsp *)pRsp->pCont;
-  sprintf(rspMsg->tbFname, "%s.%s", ctgTestDbname, ctgTestTablename);
+  strcpy(rspMsg->dbFName, ctgTestDbname);
+  strcpy(rspMsg->tbName, ctgTestTablename);
   rspMsg->numOfTags = 0;
   rspMsg->numOfColumns = htonl(ctgTestColNum);
   rspMsg->precision = 1;
@@ -285,8 +288,9 @@ void ctgTestPrepareCTableMeta(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpc
   pRsp->contLen = sizeof(STableMetaRsp) + (ctgTestColNum + ctgTestTagNum) * sizeof(SSchema);
   pRsp->pCont = calloc(1, pRsp->contLen);
   rspMsg = (STableMetaRsp *)pRsp->pCont;
-  sprintf(rspMsg->tbFname, "%s.%s", ctgTestDbname, ctgTestCTablename);
-  sprintf(rspMsg->stbFname, "%s.%s", ctgTestDbname, ctgTestSTablename);
+  strcpy(rspMsg->dbFName, ctgTestDbname);
+  strcpy(rspMsg->tbName, ctgTestCTablename);
+  strcpy(rspMsg->stbName, ctgTestSTablename);
   rspMsg->numOfTags = htonl(ctgTestTagNum);
   rspMsg->numOfColumns = htonl(ctgTestColNum);
   rspMsg->precision = 1;
@@ -327,8 +331,9 @@ void ctgTestPrepareSTableMeta(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpc
   pRsp->contLen = sizeof(STableMetaRsp) + (ctgTestColNum + ctgTestTagNum) * sizeof(SSchema);
   pRsp->pCont = calloc(1, pRsp->contLen);
   rspMsg = (STableMetaRsp *)pRsp->pCont;
-  sprintf(rspMsg->tbFname, "%s.%s", ctgTestDbname, ctgTestSTablename);
-  sprintf(rspMsg->stbFname, "%s.%s", ctgTestDbname, ctgTestSTablename);
+  strcpy(rspMsg->dbFName, ctgTestDbname);
+  strcpy(rspMsg->tbName, ctgTestSTablename);  
+  strcpy(rspMsg->stbName, ctgTestSTablename);  
   rspMsg->numOfTags = htonl(ctgTestTagNum);
   rspMsg->numOfColumns = htonl(ctgTestColNum);
   rspMsg->precision = 1;
@@ -370,8 +375,9 @@ void ctgTestPrepareMultiSTableMeta(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg,
   pRsp->contLen = sizeof(STableMetaRsp) + (ctgTestColNum + ctgTestTagNum) * sizeof(SSchema);
   pRsp->pCont = calloc(1, pRsp->contLen);
   rspMsg = (STableMetaRsp *)pRsp->pCont;
-  sprintf(rspMsg->tbFname, "%s.%s_%d", ctgTestDbname, ctgTestSTablename, idx);
-  sprintf(rspMsg->stbFname, "%s.%s_%d", ctgTestDbname, ctgTestSTablename, idx);
+  strcpy(rspMsg->dbFName, ctgTestDbname);
+  sprintf(rspMsg->tbName, "%s_%d", ctgTestSTablename, idx);
+  sprintf(rspMsg->stbName, "%s_%d", ctgTestSTablename, idx);
   rspMsg->numOfTags = htonl(ctgTestTagNum);
   rspMsg->numOfColumns = htonl(ctgTestColNum);
   rspMsg->precision = 1;
@@ -589,12 +595,12 @@ void *ctgTestGetDbVgroupThread(void *param) {
 void *ctgTestSetDbVgroupThread(void *param) {
   struct SCatalog *pCtg = (struct SCatalog *)param;
   int32_t          code = 0;
-  SDBVgroupInfo    dbVgroup = {0};
+  SDBVgroupInfo    *dbVgroup = NULL;
   int32_t          n = 0;
 
   while (!ctgTestStop) {
     ctgTestBuildDBVgroup(&dbVgroup);
-    code = catalogUpdateDBVgroup(pCtg, ctgTestDbname, &dbVgroup);
+    code = catalogUpdateDBVgroup(pCtg, ctgTestDbname, dbVgroup);
     if (code) {
       assert(0);
     }
@@ -669,6 +675,7 @@ void *ctgTestSetCtableMetaThread(void *param) {
   return NULL;
 }
 
+
 TEST(tableMeta, normalTable) {
   struct SCatalog *pCtg = NULL;
   void            *mockPointer = (void *)0x1;
@@ -741,7 +748,7 @@ TEST(tableMeta, normalTable) {
     }
 
     if (stbNum) {
-      printf("got expired stb,suid:%" PRId64 "\n", stb->suid);
+      printf("got expired stb,suid:%" PRId64 ",dbFName:%s, stbName:%s\n", stb->suid, stb->dbFName, stb->stbName);
       free(stb);
       stb = NULL;
     } else {
@@ -837,7 +844,7 @@ TEST(tableMeta, childTableCase) {
     }
 
     if (stbNum) {
-      printf("got expired stb,suid:%" PRId64 "\n", stb->suid);
+      printf("got expired stb,suid:%" PRId64 ",dbFName:%s, stbName:%s\n", stb->suid, stb->dbFName, stb->stbName);      
       free(stb);
       stb = NULL;
     } else {
@@ -938,7 +945,8 @@ TEST(tableMeta, superTableCase) {
     }
 
     if (stbNum) {
-      printf("got expired stb,suid:%" PRId64 "\n", stb->suid);
+      printf("got expired stb,suid:%" PRId64 ",dbFName:%s, stbName:%s\n", stb->suid, stb->dbFName, stb->stbName);
+      
       free(stb);
       stb = NULL;
     } else {
@@ -1062,9 +1070,11 @@ TEST(dbVgroup, getSetDbVgroupCase) {
   void            *mockPointer = (void *)0x1;
   SVgroupInfo      vgInfo = {0};
   SVgroupInfo     *pvgInfo = NULL;
-  SDBVgroupInfo    dbVgroup = {0};
+  SDBVgroupInfo    *dbVgroup = NULL;
   SArray          *vgList = NULL;
 
+  ctgTestInitLogFile();
+
   ctgTestSetPrepareDbVgroupsAndNormalMeta();
 
   initQueryModuleMsgHandle();
@@ -1099,7 +1109,7 @@ TEST(dbVgroup, getSetDbVgroupCase) {
   taosArrayDestroy(vgList);
 
   ctgTestBuildDBVgroup(&dbVgroup);
-  code = catalogUpdateDBVgroup(pCtg, ctgTestDbname, &dbVgroup);
+  code = catalogUpdateDBVgroup(pCtg, ctgTestDbname, dbVgroup);
   ASSERT_EQ(code, 0);
 
   code = catalogGetTableHashVgroup(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &vgInfo);
@@ -1169,6 +1179,7 @@ TEST(multiThread, getSetDbVgroupCase) {
   catalogDestroy();
 }
 
+
 TEST(multiThread, ctableMeta) {
   struct SCatalog *pCtg = NULL;
   void            *mockPointer = (void *)0x1;
@@ -1178,6 +1189,8 @@ TEST(multiThread, ctableMeta) {
   SArray          *vgList = NULL;
   ctgTestStop = false;
 
+  ctgTestInitLogFile();
+
   ctgTestSetPrepareDbVgroupsAndChildMeta();
 
   initQueryModuleMsgHandle();
@@ -1212,11 +1225,13 @@ TEST(multiThread, ctableMeta) {
   }
 
   ctgTestStop = true;
-  sleep(1);
+  sleep(2);
 
   catalogDestroy();
 }
 
+
+
 TEST(rentTest, allRent) {
   struct SCatalog *pCtg = NULL;
   void            *mockPointer = (void *)0x1;
@@ -1229,6 +1244,8 @@ TEST(rentTest, allRent) {
   SSTableMetaVersion *stable = NULL;
   uint32_t            num = 0;
 
+  ctgTestInitLogFile();
+
   ctgTestSetPrepareDbVgroupsAndMultiSuperMeta();
 
   initQueryModuleMsgHandle();
@@ -1273,7 +1290,7 @@ TEST(rentTest, allRent) {
     printf("%d - expired stableNum:%d\n", i, num);
     if (stable) {
       for (int32_t n = 0; n < num; ++n) {
-        printf("suid:%" PRId64 ", sversion:%d, tversion:%d\n", stable[n].suid, stable[n].sversion, stable[n].tversion);
+        printf("suid:%" PRId64 ", dbFName:%s, stbName:%s, sversion:%d, tversion:%d\n", stable[n].suid, stable[n].dbFName, stable[n].stbName, stable[n].sversion, stable[n].tversion);
       }
       free(stable);
       stable = NULL;
@@ -1291,4 +1308,4 @@ int main(int argc, char **argv) {
   return RUN_ALL_TESTS();
 }
 
-#pragma GCC diagnostic pop
+#pragma GCC diagnostic pop
\ No newline at end of file

source/libs/parser/src/astCreateFuncs.c

@@ -150,7 +150,7 @@ SNode* createRealTableNode(SAstCreateContext* pCxt, const SToken* pDbName, const
   SRealTableNode* realTable = (SRealTableNode*)nodesMakeNode(QUERY_NODE_REAL_TABLE);
   CHECK_OUT_OF_MEM(realTable);
   if (NULL != pDbName) {
-    strncpy(realTable->dbName, pDbName->z, pDbName->n);
+    strncpy(realTable->table.dbName, pDbName->z, pDbName->n);
   }
   strncpy(realTable->table.tableName, pTableName->z, pTableName->n);
   return (SNode*)realTable;
@@ -288,9 +288,6 @@ SNode* createSelectStmt(SAstCreateContext* pCxt, bool isDistinct, SNodeList* pPr
   SSelectStmt* select = (SSelectStmt*)nodesMakeNode(QUERY_NODE_SELECT_STMT);
   CHECK_OUT_OF_MEM(select);
   select->isDistinct = isDistinct;
-  if (NULL == pProjectionList) {
-    select->isStar = true;
-  }
   select->pProjectionList = pProjectionList;
   select->pFromTable = pTable;
   return (SNode*)select;

source/libs/parser/src/astTranslate.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/>.
- */
-
-// int32_t doTranslate() {
-
-// }

source/libs/parser/src/parserImpl.c

@@ -15,8 +15,9 @@
 
 #include "parserImpl.h"
 
-#include "ttoken.h"
 #include "astCreateContext.h"
+#include "parserInt.h"
+#include "ttoken.h"
 
 typedef void* (*FMalloc)(size_t);
 typedef void (*FFree)(void*);
@@ -25,7 +26,7 @@ extern void* NewParseAlloc(FMalloc);
 extern void NewParse(void*, int, SToken, void*);
 extern void NewParseFree(void*, FFree);
 
-uint32_t toNewTokenId(uint32_t tokenId) {
+static uint32_t toNewTokenId(uint32_t tokenId) {
   switch (tokenId) {
     case TK_UNION:
       return NEW_TK_UNION;
@@ -73,7 +74,7 @@ uint32_t toNewTokenId(uint32_t tokenId) {
   return tokenId;
 }
 
-uint32_t getToken(const char* z, uint32_t* tokenId) {
+static uint32_t getToken(const char* z, uint32_t* tokenId) {
   uint32_t n = tGetToken(z, tokenId);
   *tokenId = toNewTokenId(*tokenId);
   return n;
@@ -137,3 +138,289 @@ abort_parse:
   pQuery->pRoot = cxt.pRootNode;
   return cxt.valid ? TSDB_CODE_SUCCESS : TSDB_CODE_FAILED;
 }
+
+// typedef struct SNamespace {
+//   int16_t level; // todo for correlated subquery
+//   char dbName[TSDB_DB_NAME_LEN];
+//   char tableAlias[TSDB_TABLE_NAME_LEN];
+//   SHashObj* pColHash; // key is colname, value is index of STableMeta.schema
+//   STableMeta* pMeta;
+// } SNamespace;
+
+typedef struct STranslateContext {
+  SParseContext* pParseCxt;
+  int32_t errCode;
+  SMsgBuf msgBuf;
+  SArray* pNsLevel; // element is SArray*, the element of this subarray is STableNode*
+  int32_t currLevel;
+} STranslateContext;
+
+static int32_t translateSubquery(STranslateContext* pCxt, SNode* pNode);
+
+static char* getSyntaxErrFormat(int32_t errCode) {
+  switch (errCode) {
+    case TSDB_CODE_PARSER_INVALID_COLUMN:
+      return "Invalid column name : %s";
+    case TSDB_CODE_PARSER_TABLE_NOT_EXIST:
+      return "Table does not exist : %s";
+    case TSDB_CODE_PARSER_AMBIGUOUS_COLUMN:
+      return "Column ambiguously defined : %s";
+    default:
+      return "Unknown error";
+  }
+}
+
+static int32_t generateSyntaxErrMsg(STranslateContext* pCxt, int32_t errCode, const char* additionalInfo) {
+  snprintf(pCxt->msgBuf.buf, pCxt->msgBuf.len, getSyntaxErrFormat(errCode), additionalInfo);
+  pCxt->errCode = errCode;
+  return errCode;
+}
+
+static int32_t addNamespace(STranslateContext* pCxt, void* pTable) {
+  SArray* pTables = NULL;
+  if (taosArrayGetSize(pCxt->pNsLevel) > pCxt->currLevel) {
+    pTables = taosArrayGetP(pCxt->pNsLevel, pCxt->currLevel);
+  } else {
+    pTables = taosArrayInit(TARRAY_MIN_SIZE, POINTER_BYTES);
+  }
+  taosArrayPush(pTables, &pTable);
+  return TSDB_CODE_SUCCESS;
+}
+
+static SName* toName(const SRealTableNode* pRealTable, SName* pName) {
+  strncpy(pName->dbname, pRealTable->table.dbName, strlen(pRealTable->table.dbName));
+  strncpy(pName->dbname, pRealTable->table.tableName, strlen(pRealTable->table.tableName));
+  return pName;
+}
+
+static bool belongTable(const char* currentDb, const SColumnNode* pCol, const STableNode* pTable) {
+  int cmp = 0;
+  if ('\0' != pCol->dbName[0]) {
+    cmp = strcmp(pCol->dbName, pTable->dbName);
+  } else {
+    cmp = strcmp(currentDb, pTable->dbName);
+  }
+  if (0 == cmp) {
+    cmp = strcmp(pCol->tableAlias, pTable->tableAlias);
+  }
+  return (0 == cmp);
+}
+
+static SNodeList* getProjectList(SNode* pNode) {
+  if (QUERY_NODE_SELECT_STMT == nodeType(pNode)) {
+    return ((SSelectStmt*)pNode)->pProjectionList;
+  }
+  return NULL;
+}
+
+static int32_t createColumnNodeByTable(const STableNode* pTable, SNodeList* pList) {
+  if (QUERY_NODE_REAL_TABLE == nodeType(pTable)) {
+    const STableMeta* pMeta = ((SRealTableNode*)pTable)->pMeta;
+    int32_t nums = pMeta->tableInfo.numOfTags + pMeta->tableInfo.numOfColumns;
+    for (int32_t i = 0; i < nums; ++i) {
+      SColumnNode* pCol = (SColumnNode*)nodesMakeNode(QUERY_NODE_COLUMN);
+      pCol->colId = pMeta->schema[i].colId;
+      pCol->colType = pMeta->schema[i].type;
+      pCol->node.resType.bytes = pMeta->schema[i].bytes;
+      nodesListAppend(pList, (SNode*)pCol);
+    }
+  } else {
+    SNodeList* pProjectList = getProjectList(((STempTableNode*)pTable)->pSubquery);
+    SNode* pNode;
+    FOREACH(pNode, pProjectList) {
+      SExprNode* pExpr = (SExprNode*)pNode;
+      SColumnNode* pCol = (SColumnNode*)nodesMakeNode(QUERY_NODE_COLUMN);
+      pCol->pProjectRef = (SNode*)pExpr;
+      pExpr->pAssociationList = nodesListAppend(pExpr->pAssociationList, (SNode*)pCol);
+      pCol->node.resType = pExpr->resType;
+      nodesListAppend(pList, (SNode*)pCol);
+    }
+  }
+}
+
+static bool findAndSetColumn(SColumnNode* pCol, const STableNode* pTable) {
+  bool found = false;
+  if (QUERY_NODE_REAL_TABLE == nodeType(pTable)) {
+    const STableMeta* pMeta = ((SRealTableNode*)pTable)->pMeta;
+    int32_t nums = pMeta->tableInfo.numOfTags + pMeta->tableInfo.numOfColumns;
+    for (int32_t i = 0; i < nums; ++i) {
+      if (0 == strcmp(pCol->colName, pMeta->schema[i].name)) {
+        pCol->colId = pMeta->schema[i].colId;
+        pCol->colType = pMeta->schema[i].type;
+        pCol->node.resType.bytes = pMeta->schema[i].bytes;
+        found = true;
+        break;
+      }
+    }
+  } else {
+    SNodeList* pProjectList = getProjectList(((STempTableNode*)pTable)->pSubquery);
+    SNode* pNode;
+    FOREACH(pNode, pProjectList) {
+      SExprNode* pExpr = (SExprNode*)pNode;
+      if (0 == strcmp(pCol->colName, pExpr->aliasName)) {
+        pCol->pProjectRef = (SNode*)pExpr;
+        pExpr->pAssociationList = nodesListAppend(pExpr->pAssociationList, (SNode*)pCol);
+        pCol->node.resType = pExpr->resType;
+        found = true;
+        break;
+      }
+    }
+  }
+  return found;
+}
+
+static bool doTranslateExpr(SNode* pNode, void* pContext) {
+  STranslateContext* pCxt = (STranslateContext*)pContext;
+  switch (nodeType(pNode)) {
+    case QUERY_NODE_COLUMN: {
+      SColumnNode* pCol = (SColumnNode*)pNode;
+      SArray* pTables = taosArrayGetP(pCxt->pNsLevel, pCxt->currLevel);
+      size_t nums = taosArrayGetSize(pTables);
+      bool hasTableAlias = ('\0' != pCol->tableAlias[0]);
+      bool found = false;
+      for (size_t i = 0; i < nums; ++i) {
+        STableNode* pTable = taosArrayGetP(pTables, i);
+        if (hasTableAlias) {
+          if (belongTable(pCxt->pParseCxt->db, pCol, pTable)) {
+            if (findAndSetColumn(pCol, pTable)) {
+              break;
+            }
+            generateSyntaxErrMsg(pCxt, TSDB_CODE_PARSER_INVALID_COLUMN, pCol->colName);
+            return false;
+          }
+        } else {
+          if (findAndSetColumn(pCol, pTable)) {
+            if (found) {
+              generateSyntaxErrMsg(pCxt, TSDB_CODE_PARSER_AMBIGUOUS_COLUMN, pCol->colName);
+              return false;
+            }
+            found = true;
+          }
+        }
+      }
+      break;
+    }
+    case QUERY_NODE_VALUE:
+      break; // todo check literal format
+    case QUERY_NODE_OPERATOR: {
+
+      break;
+    }
+    case QUERY_NODE_FUNCTION:
+      break; // todo
+    case QUERY_NODE_TEMP_TABLE:
+      return translateSubquery(pCxt, ((STempTableNode*)pNode)->pSubquery);
+    default:
+      break;
+  }
+  return true;
+}
+
+static int32_t translateExpr(STranslateContext* pCxt, SNode* pNode) {
+  nodesWalkNodePostOrder(pNode, doTranslateExpr, pCxt);
+  return pCxt->errCode;
+}
+
+static int32_t translateExprList(STranslateContext* pCxt, SNodeList* pList) {
+  nodesWalkListPostOrder(pList, doTranslateExpr, pCxt);
+  return pCxt->errCode;
+}
+
+static int32_t translateTable(STranslateContext* pCxt, SNode* pTable) {
+  int32_t code = TSDB_CODE_SUCCESS;
+  switch (nodeType(pTable)) {
+    case QUERY_NODE_REAL_TABLE: {
+      SRealTableNode* pRealTable = (SRealTableNode*)pTable;
+      if ('\0' == pRealTable->table.dbName[0]) {
+        strcpy(pRealTable->table.dbName, pCxt->pParseCxt->db);
+      }
+      if ('\0' == pRealTable->table.tableAlias[0]) {
+        strcpy(pRealTable->table.tableAlias, pRealTable->table.tableName);
+      }
+      SName name;
+      code = catalogGetTableMeta(
+          pCxt->pParseCxt->pCatalog, pCxt->pParseCxt->pTransporter, &(pCxt->pParseCxt->mgmtEpSet), toName(pRealTable, &name), &(pRealTable->pMeta));
+      if (TSDB_CODE_SUCCESS != code) {
+        return generateSyntaxErrMsg(pCxt, TSDB_CODE_PARSER_TABLE_NOT_EXIST, pRealTable->table.tableName);
+      }
+      code = addNamespace(pCxt, pRealTable);
+      break;
+    }
+    case QUERY_NODE_TEMP_TABLE: {
+      STempTableNode* pTempTable = (STempTableNode*)pTable;
+      code = translateSubquery(pCxt, pTempTable->pSubquery);
+      if (TSDB_CODE_SUCCESS == code) {
+        code = addNamespace(pCxt, pTempTable);
+      }
+      break;
+    }
+    case QUERY_NODE_JOIN_TABLE: {
+      SJoinTableNode* pJoinTable = (SJoinTableNode*)pTable;
+      code = translateTable(pCxt, pJoinTable->pLeft);
+      if (TSDB_CODE_SUCCESS == code) {
+        code = translateTable(pCxt, pJoinTable->pRight);
+      }
+      if (TSDB_CODE_SUCCESS == code) {
+        code = translateExpr(pCxt, pJoinTable->pOnCond);
+      }
+      break;
+    }
+    default:
+      break;
+  }
+  return code;
+}
+
+static int32_t translateStar(STranslateContext* pCxt, SSelectStmt* pSelect, bool* pIsSelectStar) {
+  if (NULL == pSelect->pProjectionList) { // select * ...
+    SArray* pTables = taosArrayGetP(pCxt->pNsLevel, pCxt->currLevel);
+    size_t nums = taosArrayGetSize(pTables);
+    for (size_t i = 0; i < nums; ++i) {
+      STableNode* pTable = taosArrayGetP(pTables, i);
+      createColumnNodeByTable(pTable, pSelect->pProjectionList);
+    }
+    *pIsSelectStar = true;
+  } else {
+
+  }
+}
+
+static int32_t translateSelect(STranslateContext* pCxt, SSelectStmt* pSelect) {
+  int32_t code = TSDB_CODE_SUCCESS;
+  code = translateTable(pCxt, pSelect->pFromTable);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = translateExpr(pCxt, pSelect->pWhere);
+  }
+  bool isSelectStar = false;
+  if (TSDB_CODE_SUCCESS == code) {
+    code = translateStar(pCxt, pSelect, &isSelectStar);
+  }
+  if (TSDB_CODE_SUCCESS == code && !isSelectStar) {
+    code = translateExprList(pCxt, pSelect->pProjectionList);
+  }
+  return code;
+}
+
+static int32_t translateQuery(STranslateContext* pCxt, SNode* pNode) {
+  int32_t code = TSDB_CODE_SUCCESS;
+  switch (nodeType(pNode)) {
+    case QUERY_NODE_SELECT_STMT:
+      code = translateSelect(pCxt, (SSelectStmt*)pNode);
+      break;
+    default:
+      break;
+  }
+  return code;
+}
+
+static int32_t translateSubquery(STranslateContext* pCxt, SNode* pNode) {
+  ++(pCxt->currLevel);
+  int32_t code = translateQuery(pCxt, pNode);
+  --(pCxt->currLevel);
+  return code;
+}
+
+int32_t doTranslate(SParseContext* pParseCxt, SQuery* pQuery) {
+  STranslateContext cxt = { .pParseCxt = pParseCxt, .pNsLevel = taosArrayInit(TARRAY_MIN_SIZE, POINTER_BYTES), .currLevel = 0 };
+  return translateQuery(&cxt, pQuery->pRoot);
+}

source/libs/parser/test/newParserTest.cpp

@@ -71,8 +71,8 @@ private:
     switch (nodeType(node)) {
       case QUERY_NODE_REAL_TABLE: {
         SRealTableNode* realTable = (SRealTableNode*)table;
-        if ('\0' != realTable->dbName[0]) {
-          sql.append(realTable->dbName);
+        if ('\0' != realTable->table.dbName[0]) {
+          sql.append(realTable->table.dbName);
           sql.append(".");
         }
         sql.append(realTable->table.tableName);

source/libs/qcom/src/querymsg.c

@@ -45,11 +45,11 @@ int32_t queryBuildTableMetaReqMsg(void* input, char **msg, int32_t msgSize, int3
 
   bMsg->header.vgId = htonl(bInput->vgId);
 
-  if (bInput->dbName) {
-    tstrncpy(bMsg->dbFname, bInput->dbName, tListLen(bMsg->dbFname));
+  if (bInput->dbFName) {
+    tstrncpy(bMsg->dbFName, bInput->dbFName, tListLen(bMsg->dbFName));
   }
 
-  tstrncpy(bMsg->tableFname, bInput->tableFullName, tListLen(bMsg->tableFname));
+  tstrncpy(bMsg->tbName, bInput->tbName, tListLen(bMsg->tbName));
 
   *msgLen = (int32_t)sizeof(*bMsg);
   return TSDB_CODE_SUCCESS;
@@ -113,12 +113,19 @@ int32_t queryProcessUseDBRsp(void* output, char *msg, int32_t msgSize) {
     return TSDB_CODE_TSC_VALUE_OUT_OF_RANGE;
   }
 
-  pOut->dbVgroup.vgVersion = pRsp->vgVersion;
-  pOut->dbVgroup.hashMethod = pRsp->hashMethod;
-  pOut->dbVgroup.dbId = pRsp->uid;
-  pOut->dbVgroup.vgInfo = taosHashInit(pRsp->vgNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_ENTRY_LOCK);
-  if (NULL == pOut->dbVgroup.vgInfo) {
-    qError("hash init[%d] failed", pRsp->vgNum);
+  pOut->dbVgroup = calloc(1, sizeof(SDBVgroupInfo));
+  if (NULL == pOut->dbVgroup) {
+    qError("calloc %d failed", (int32_t)sizeof(SDBVgroupInfo));
+    return TSDB_CODE_TSC_OUT_OF_MEMORY;
+  }
+
+  pOut->dbVgroup->vgVersion = pRsp->vgVersion;
+  pOut->dbVgroup->hashMethod = pRsp->hashMethod;
+  pOut->dbVgroup->dbId = pRsp->uid;
+  pOut->dbVgroup->vgHash = taosHashInit(pRsp->vgNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_ENTRY_LOCK);
+  if (NULL == pOut->dbVgroup->vgHash) {
+    qError("taosHashInit %d failed", pRsp->vgNum);
+    tfree(pOut->dbVgroup);
     return TSDB_CODE_TSC_OUT_OF_MEMORY;
   }
 
@@ -131,8 +138,8 @@ int32_t queryProcessUseDBRsp(void* output, char *msg, int32_t msgSize) {
       pRsp->vgroupInfo[i].epset.eps[n].port = ntohs(pRsp->vgroupInfo[i].epset.eps[n].port);
     }
 
-    if (0 != taosHashPut(pOut->dbVgroup.vgInfo, &pRsp->vgroupInfo[i].vgId, sizeof(pRsp->vgroupInfo[i].vgId), &pRsp->vgroupInfo[i], sizeof(pRsp->vgroupInfo[i]))) {
-      qError("hash push failed");
+    if (0 != taosHashPut(pOut->dbVgroup->vgHash, &pRsp->vgroupInfo[i].vgId, sizeof(pRsp->vgroupInfo[i].vgId), &pRsp->vgroupInfo[i], sizeof(pRsp->vgroupInfo[i]))) {
+      qError("taosHashPut failed");
       goto _return;
     }
   }
@@ -142,8 +149,10 @@ int32_t queryProcessUseDBRsp(void* output, char *msg, int32_t msgSize) {
   return code;
 
 _return:
+
   if (pOut) {
-    tfree(pOut->dbVgroup.vgInfo);
+    taosHashCleanup(pOut->dbVgroup->vgHash);
+    tfree(pOut->dbVgroup);
   }
   
   return code;
@@ -248,16 +257,13 @@ int32_t queryProcessTableMetaRsp(void* output, char *msg, int32_t msgSize) {
     return TSDB_CODE_TSC_INVALID_VALUE;
   }
 
+  strcpy(pOut->dbFName, pMetaMsg->dbFName);
+
   if (pMetaMsg->tableType == TSDB_CHILD_TABLE) {
     SET_META_TYPE_BOTH_TABLE(pOut->metaType);
 
-    if (pMetaMsg->dbFname[0]) {
-      snprintf(pOut->ctbFname, sizeof(pOut->ctbFname), "%s.%s", pMetaMsg->dbFname, pMetaMsg->tbFname);
-      snprintf(pOut->tbFname, sizeof(pOut->tbFname), "%s.%s", pMetaMsg->dbFname, pMetaMsg->stbFname);
-    } else {
-      memcpy(pOut->ctbFname, pMetaMsg->tbFname, sizeof(pOut->ctbFname));
-      memcpy(pOut->tbFname, pMetaMsg->stbFname, sizeof(pOut->tbFname));
-    }
+    strcpy(pOut->ctbName, pMetaMsg->tbName);
+    strcpy(pOut->tbName, pMetaMsg->stbName);
     
     pOut->ctbMeta.vgId = pMetaMsg->vgId;
     pOut->ctbMeta.tableType = pMetaMsg->tableType;
@@ -268,11 +274,7 @@ int32_t queryProcessTableMetaRsp(void* output, char *msg, int32_t msgSize) {
   } else {
     SET_META_TYPE_TABLE(pOut->metaType);
     
-    if (pMetaMsg->dbFname[0]) {
-      snprintf(pOut->tbFname, sizeof(pOut->tbFname), "%s.%s", pMetaMsg->dbFname, pMetaMsg->tbFname);
-    } else {
-      memcpy(pOut->tbFname, pMetaMsg->tbFname, sizeof(pOut->tbFname));
-    }
+    strcpy(pOut->tbName, pMetaMsg->tbName);
     
     code = queryCreateTableMetaFromMsg(pMetaMsg, (pMetaMsg->tableType == TSDB_SUPER_TABLE), &pOut->tbMeta);
   }
@@ -291,4 +293,4 @@ void initQueryModuleMsgHandle() {
   queryProcessMsgRsp[TMSG_INDEX(TDMT_MND_USE_DB)] = queryProcessUseDBRsp;
 }
 
-#pragma GCC diagnostic pop
+#pragma GCC diagnostic pop
\ No newline at end of file

source/libs/scheduler/inc/schedulerInt.h

@@ -132,7 +132,7 @@ typedef struct SSchJob {
   SQueryProfileSummary summary;
 } SSchJob;
 
-#define SCH_TASK_READY_TO_LUNCH(task) (atomic_load_32(&(task)->childReady) >= taosArrayGetSize((task)->children))
+#define SCH_TASK_READY_TO_LUNCH(readyNum, task) ((readyNum) >= taosArrayGetSize((task)->children))
 
 #define SCH_IS_DATA_SRC_TASK(task) ((task)->plan->type == QUERY_TYPE_SCAN)
 #define SCH_TASK_NEED_WAIT_ALL(task) ((task)->plan->type == QUERY_TYPE_MODIFY)

source/libs/scheduler/src/scheduler.c

@@ -773,14 +773,14 @@ int32_t schProcessOnTaskSuccess(SSchJob *pJob, SSchTask *pTask) {
     SSchTask *par = *(SSchTask **)taosArrayGet(pTask->parents, i);
     pErrTask = par;
     
-    atomic_add_fetch_32(&par->childReady, 1);
+    int32_t readyNum = atomic_add_fetch_32(&par->childReady, 1);
 
     SCH_LOCK(SCH_WRITE, &par->lock);
     SDownstreamSource source = {.taskId = pTask->taskId, .schedId = schMgmt.sId, .addr = pTask->succeedAddr};
     qSetSubplanExecutionNode(par->plan, pTask->plan->id.templateId, &source);
     SCH_UNLOCK(SCH_WRITE, &par->lock);
     
-    if (SCH_TASK_READY_TO_LUNCH(par)) {
+    if (SCH_TASK_READY_TO_LUNCH(readyNum, par)) {
       SCH_ERR_RET(schLaunchTask(pJob, par));
     }
   }

source/libs/wal/src/walRead.c

@@ -170,7 +170,7 @@ int32_t walReadWithHandle(SWalReadHandle *pRead, int64_t ver) {
   }
 
   if (pRead->pHead->head.version != ver) {
-    /*wError("unexpected wal log version: %ld, read request version:%ld", pRead->pHead->head.version, ver);*/
+    wError("unexpected wal log version: %ld, read request version:%ld", pRead->pHead->head.version, ver);
     pRead->curVersion = -1;
     terrno = TSDB_CODE_WAL_FILE_CORRUPTED;
     return -1;
@@ -178,7 +178,7 @@ int32_t walReadWithHandle(SWalReadHandle *pRead, int64_t ver) {
 
   code = walValidBodyCksum(pRead->pHead);
   if (code != 0) {
-    /*wError("unexpected wal log version: checksum not passed");*/
+    wError("unexpected wal log version: checksum not passed");
     pRead->curVersion = -1;
     terrno = TSDB_CODE_WAL_FILE_CORRUPTED;
     return -1;

source/nodes/src/nodesTraverseFuncs.c

@@ -15,68 +15,101 @@
 
 #include "nodes.h"
 
-typedef bool (*FQueryNodeWalker)(SNode* pNode, void* pContext);
+typedef enum ETraversalOrder {
+  TRAVERSAL_PREORDER = 1,
+  TRAVERSAL_POSTORDER
+} ETraversalOrder;
 
-bool nodesWalkNodeList(SNodeList* pNodeList, FQueryNodeWalker walker, void* pContext) {
-  SNode* node;
-  FOREACH(node, pNodeList) {
-    if (!nodesWalkNode(node, walker, pContext)) {
-      return false;
-    }
-  }
-  return true;
-}
+static bool walkList(SNodeList* pNodeList, ETraversalOrder order, FQueryNodeWalker walker, void* pContext);
 
-bool nodesWalkNode(SNode* pNode, FQueryNodeWalker walker, void* pContext) {
+static bool walkNode(SNode* pNode, ETraversalOrder order, FQueryNodeWalker walker, void* pContext) {
   if (NULL == pNode) {
     return true;
   }
 
-  if (!walker(pNode, pContext)) {
+  if (TRAVERSAL_PREORDER == order && !walker(pNode, pContext)) {
     return false;
   }
 
+  bool res = true;
   switch (nodeType(pNode)) {
     case QUERY_NODE_COLUMN:
     case QUERY_NODE_VALUE:
     case QUERY_NODE_LIMIT:
       // these node types with no subnodes
-      return true;
+      break;
     case QUERY_NODE_OPERATOR: {
       SOperatorNode* pOpNode = (SOperatorNode*)pNode;
-      if (!nodesWalkNode(pOpNode->pLeft, walker, pContext)) {
-        return false;
+      res = walkNode(pOpNode->pLeft, order, walker, pContext);
+      if (res) {
+        res = walkNode(pOpNode->pRight, order, walker, pContext);
       }
-      return nodesWalkNode(pOpNode->pRight, walker, pContext);
+      break;
     }
     case QUERY_NODE_LOGIC_CONDITION:
-      return nodesWalkNodeList(((SLogicConditionNode*)pNode)->pParameterList, walker, pContext);
+      res = walkList(((SLogicConditionNode*)pNode)->pParameterList, order, walker, pContext);
+      break;
     case QUERY_NODE_IS_NULL_CONDITION:
-      return nodesWalkNode(((SIsNullCondNode*)pNode)->pExpr, walker, pContext);
+      res = walkNode(((SIsNullCondNode*)pNode)->pExpr, order, walker, pContext);
+      break;
     case QUERY_NODE_FUNCTION:
-      return nodesWalkNodeList(((SFunctionNode*)pNode)->pParameterList, walker, pContext);
+      res = walkList(((SFunctionNode*)pNode)->pParameterList, order, walker, pContext);
+      break;
     case QUERY_NODE_REAL_TABLE:
     case QUERY_NODE_TEMP_TABLE:
-      return true; // todo
+      break; // todo
     case QUERY_NODE_JOIN_TABLE: {
       SJoinTableNode* pJoinTableNode = (SJoinTableNode*)pNode;
-      if (!nodesWalkNode(pJoinTableNode->pLeft, walker, pContext)) {
-        return false;
+      res = walkNode(pJoinTableNode->pLeft, order, walker, pContext);
+      if (res) {
+        res = walkNode(pJoinTableNode->pRight, order, walker, pContext);
       }
-      if (!nodesWalkNode(pJoinTableNode->pRight, walker, pContext)) {
-        return false;
+      if (res) {
+        res = walkNode(pJoinTableNode->pOnCond, order, walker, pContext);
       }
-      return nodesWalkNode(pJoinTableNode->pOnCond, walker, pContext);
+      break;
     }
     case QUERY_NODE_GROUPING_SET:
-      return nodesWalkNodeList(((SGroupingSetNode*)pNode)->pParameterList, walker, pContext);
+      res = walkList(((SGroupingSetNode*)pNode)->pParameterList, order, walker, pContext);
+      break;
     case QUERY_NODE_ORDER_BY_EXPR:
-      return nodesWalkNode(((SOrderByExprNode*)pNode)->pExpr, walker, pContext);
+      res = walkNode(((SOrderByExprNode*)pNode)->pExpr, order, walker, pContext);
+      break;
     default:
       break;
   }
 
-  return false;
+  if (res && TRAVERSAL_POSTORDER == order) {
+    res = walker(pNode, pContext);
+  }
+
+  return res;
+}
+
+static bool walkList(SNodeList* pNodeList, ETraversalOrder order, FQueryNodeWalker walker, void* pContext) {
+  SNode* node;
+  FOREACH(node, pNodeList) {
+    if (!walkNode(node, order, walker, pContext)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+void nodesWalkNode(SNode* pNode, FQueryNodeWalker walker, void* pContext) {
+  (void)walkNode(pNode, TRAVERSAL_PREORDER, walker, pContext);
+}
+
+void nodesWalkList(SNodeList* pNodeList, FQueryNodeWalker walker, void* pContext) {
+  (void)walkList(pNodeList, TRAVERSAL_PREORDER, walker, pContext);
+}
+
+void nodesWalkNodePostOrder(SNode* pNode, FQueryNodeWalker walker, void* pContext) {
+  (void)walkNode(pNode, TRAVERSAL_POSTORDER, walker, pContext);
+}
+
+void nodesWalkListPostOrder(SNodeList* pList, FQueryNodeWalker walker, void* pContext) {
+  (void)walkList(pList, TRAVERSAL_PREORDER, walker, pContext);
 }
 
 bool nodesWalkStmt(SNode* pNode, FQueryNodeWalker walker, void* pContext) {

source/os/src/osDir.c

@@ -13,6 +13,8 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define _DEFAULT_SOURCE
+
 #include "os.h"
 #include "osString.h"
 

source/util/CMakeLists.txt

@@ -10,6 +10,7 @@ target_link_libraries(
     util
     PRIVATE os
     PUBLIC lz4_static
+    PUBLIC api
 )
 
 if(${BUILD_TEST})

source/util/src/tbuffer.c

@@ -13,6 +13,8 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define _DEFAULT_SOURCE
+
 #include "tbuffer.h"
 #include "exception.h"
 #include "os.h"

source/util/src/tlog.c

@@ -19,7 +19,6 @@
 #include "tnote.h"
 #include "tutil.h"
 #include "ulog.h"
-//#include "zlib.h"
 
 #define MAX_LOGLINE_SIZE (1000)
 #define MAX_LOGLINE_BUFFER_SIZE (MAX_LOGLINE_SIZE + 10)

source/util/src/tpagedfile.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 "tpagedfile.h"
 #include "thash.h"
 #include "stddef.h"