diff --git a/include/libs/qcom/query.h b/include/libs/qcom/query.h
index 6319281212..b8d09e2262 100644
--- a/include/libs/qcom/query.h
+++ b/include/libs/qcom/query.h
@@ -129,6 +129,7 @@ typedef struct SDBVgInfo {
   int32_t   numOfTable;  // DB's table num, unit is TSDB_TABLE_NUM_UNIT
   int64_t   stateTs;
   SHashObj* vgHash;      // key:vgId, value:SVgroupInfo
+  SArray*   vgArray;
 } SDBVgInfo;
 
 typedef struct SUseDbOutput {
diff --git a/source/libs/catalog/inc/catalogInt.h b/source/libs/catalog/inc/catalogInt.h
index d73dcb3b30..085b2c1112 100644
--- a/source/libs/catalog/inc/catalogInt.h
+++ b/source/libs/catalog/inc/catalogInt.h
@@ -764,8 +764,6 @@ void    ctgFreeJob(void* job);
 void    ctgFreeHandleImpl(SCatalog* pCtg);
 void    ctgFreeVgInfo(SDBVgInfo* vgInfo);
 int32_t ctgGetVgInfoFromHashValue(SCatalog* pCtg, SDBVgInfo* dbInfo, const SName* pTableName, SVgroupInfo* pVgroup);
-int32_t ctgGetVgInfoFromHashValue2(SCatalog* pCtg, SDBVgInfo* dbInfo, const SName* pTableName, SVgroupInfo* pVgroup);
-
 int32_t ctgGetVgInfosFromHashValue(SCatalog* pCtg, SCtgTaskReq* tReq, SDBVgInfo* dbInfo, SCtgTbHashsCtx* pCtx,
                                    char* dbFName, SArray* pNames, bool update);
 void    ctgResetTbMetaTask(SCtgTask* pTask);
@@ -791,6 +789,7 @@ int32_t ctgRemoveTbMeta(SCatalog* pCtg, SName* pTableName);
 int32_t ctgGetTbHashVgroup(SCatalog* pCtg, SRequestConnInfo* pConn, const SName* pTableName, SVgroupInfo* pVgroup, bool* exists);
 SName*  ctgGetFetchName(SArray* pNames, SCtgFetch* pFetch);
 int32_t ctgdGetOneHandle(SCatalog **pHandle);
+int     ctgVgInfoComp(const void* lp, const void* rp);
 
 extern SCatalogMgmt gCtgMgmt;
 extern SCtgDebug    gCTGDebug;
diff --git a/source/libs/catalog/src/catalog.c b/source/libs/catalog/src/catalog.c
index f17abaa31f..3a398d1551 100644
--- a/source/libs/catalog/src/catalog.c
+++ b/source/libs/catalog/src/catalog.c
@@ -536,7 +536,7 @@ int32_t ctgGetTbHashVgroup(SCatalog* pCtg, SRequestConnInfo* pConn, const SName*
     return TSDB_CODE_SUCCESS;
   }
   
-  CTG_ERR_JRET(ctgGetVgInfoFromHashValue2(pCtg, vgInfo ? vgInfo : dbCache->vgCache.vgInfo, pTableName, pVgroup));
+  CTG_ERR_JRET(ctgGetVgInfoFromHashValue(pCtg, vgInfo ? vgInfo : dbCache->vgCache.vgInfo, pTableName, pVgroup));
 
 _return:
 
diff --git a/source/libs/catalog/src/ctgCache.c b/source/libs/catalog/src/ctgCache.c
index db3a53aeb0..c319a8350f 100644
--- a/source/libs/catalog/src/ctgCache.c
+++ b/source/libs/catalog/src/ctgCache.c
@@ -226,6 +226,7 @@ _return:
   return TSDB_CODE_SUCCESS;
 }
 
+/*
 int32_t ctgAcquireStbMetaFromCache(SCatalog *pCtg, char *dbFName, uint64_t suid, SCtgDBCache **pDb, SCtgTbCache **pTb) {
   SCtgDBCache *dbCache = NULL;
   SCtgTbCache *pCache = NULL;
@@ -276,9 +277,9 @@ _return:
 
   return TSDB_CODE_SUCCESS;
 }
+*/
 
-
-int32_t ctgAcquireStbMetaFromCache2(SCtgDBCache *dbCache, SCatalog *pCtg, char *dbFName, uint64_t suid, SCtgTbCache **pTb) {
+int32_t ctgAcquireStbMetaFromCache(SCtgDBCache *dbCache, SCatalog *pCtg, char *dbFName, uint64_t suid, SCtgTbCache **pTb) {
   SCtgTbCache *pCache = NULL;
   char *stName = taosHashAcquire(dbCache->stbCache, &suid, sizeof(suid));
   if (NULL == stName) {
@@ -437,7 +438,7 @@ int32_t ctgReadTbMetaFromCache(SCatalog *pCtg, SCtgTbMetaCtx *ctx, STableMeta **
   ctgDebug("Got ctb %s meta from cache, will continue to get its stb meta, type:%d, dbFName:%s", ctx->pName->tname,
            ctx->tbInfo.tbType, dbFName);
 
-  ctgAcquireStbMetaFromCache2(dbCache, pCtg, dbFName, ctx->tbInfo.suid, &tbCache);
+  ctgAcquireStbMetaFromCache(dbCache, pCtg, dbFName, ctx->tbInfo.suid, &tbCache);
 
   STableMeta *stbMeta = tbCache->pMeta;
   if (stbMeta->suid != ctx->tbInfo.suid) {
@@ -503,10 +504,15 @@ int32_t ctgReadTbVerFromCache(SCatalog *pCtg, SName *pTableName, int32_t *sver,
 
   // PROCESS FOR CHILD TABLE
 
-  ctgReleaseTbMetaToCache(pCtg, dbCache, tbCache);
+  //ctgReleaseTbMetaToCache(pCtg, dbCache, tbCache);
+  if (tbCache) {
+    CTG_UNLOCK(CTG_READ, &tbCache->metaLock);
+    taosHashRelease(dbCache->tbCache, tbCache);
+  }
+  
   ctgDebug("Got ctb %s ver from cache, will continue to get its stb ver, dbFName:%s", pTableName->tname, dbFName);
 
-  ctgAcquireStbMetaFromCache(pCtg, dbFName, *suid, &dbCache, &tbCache);
+  ctgAcquireStbMetaFromCache(dbCache, pCtg, dbFName, *suid, &tbCache);
   if (NULL == tbCache) {
     ctgReleaseTbMetaToCache(pCtg, dbCache, tbCache);
     ctgDebug("stb 0x%" PRIx64 " meta not in cache", *suid);
@@ -846,6 +852,18 @@ int32_t ctgUpdateVgroupEnqueue(SCatalog *pCtg, const char *dbFName, int64_t dbId
     dbFName = p + 1;
   }
 
+  if (dbInfo->vgHash && NULL == dbInfo->vgArray) {
+    dbInfo->vgArray = taosArrayInit(100, sizeof(SVgroupInfo));
+    
+    void*   pIter = taosHashIterate(dbInfo->vgHash, NULL);
+    while (pIter) {
+      taosArrayPush(dbInfo->vgArray, pIter);
+      pIter = taosHashIterate(dbInfo->vgHash, pIter);
+    }
+    
+    taosArraySort(dbInfo->vgArray, ctgVgInfoComp);
+  }
+
   tstrncpy(msg->dbFName, dbFName, sizeof(msg->dbFName));
   msg->pCtg = pCtg;
   msg->dbId = dbId;
@@ -1592,6 +1610,20 @@ void ctgFreeAllInstance(void) {
   taosHashClear(gCtgMgmt.pCluster);
 }
 
+int32_t ctgVgInfoIdComp(void const* lp, void const* rp) {
+  int32_t*    key = (int32_t*)lp;
+  SVgroupInfo* pVg = (SVgroupInfo*)rp;
+
+  if (*key < pVg->vgId) {
+    return -1;
+  } else if (*key > pVg->vgId) {
+    return 1;
+  }
+
+  return 0;
+}
+
+
 int32_t ctgOpUpdateVgroup(SCtgCacheOperation *operation) {
   int32_t          code = 0;
   SCtgUpdateVgMsg *msg = operation->data;
@@ -1973,7 +2005,13 @@ int32_t ctgOpUpdateEpset(SCtgCacheOperation *operation) {
 
   SVgroupInfo *pInfo = taosHashGet(vgInfo->vgHash, &msg->vgId, sizeof(msg->vgId));
   if (NULL == pInfo) {
-    ctgDebug("no vgroup %d in db %s, ignore epset update", msg->vgId, msg->dbFName);
+    ctgDebug("no vgroup %d in db %s vgHash, ignore epset update", msg->vgId, msg->dbFName);
+    goto _return;
+  }
+
+  SVgroupInfo *pInfo2 = taosArraySearch(vgInfo->vgArray, &msg->vgId, ctgVgInfoIdComp, TD_EQ);
+  if (NULL == pInfo2) {
+    ctgDebug("no vgroup %d in db %s vgArray, ignore epset update", msg->vgId, msg->dbFName);
     goto _return;
   }
 
@@ -1984,6 +2022,7 @@ int32_t ctgOpUpdateEpset(SCtgCacheOperation *operation) {
            msg->epSet.numOfEps, pNewEp->fqdn, pNewEp->port, msg->dbFName);
 
   pInfo->epSet = msg->epSet;
+  pInfo2->epSet = msg->epSet;
 
 _return:
 
diff --git a/source/libs/catalog/src/ctgUtil.c b/source/libs/catalog/src/ctgUtil.c
index ef7b80a676..6fba94cc8a 100644
--- a/source/libs/catalog/src/ctgUtil.c
+++ b/source/libs/catalog/src/ctgUtil.c
@@ -236,10 +236,8 @@ void ctgFreeVgInfo(SDBVgInfo* vgInfo) {
     return;
   }
 
-  if (vgInfo->vgHash) {
-    taosHashCleanup(vgInfo->vgHash);
-    vgInfo->vgHash = NULL;
-  }
+  taosHashCleanup(vgInfo->vgHash);
+  taosArrayDestroy(vgInfo->vgArray);
 
   taosMemoryFreeClear(vgInfo);
 }
@@ -837,7 +835,7 @@ _return:
   CTG_RET(code);
 }
 
-int ctgVgInfoComp2(const void* lp, const void* rp) {
+int ctgVgInfoComp(const void* lp, const void* rp) {
   SVgroupInfo* pLeft = (SVgroupInfo*)lp;
   SVgroupInfo* pRight = (SVgroupInfo*)rp;
   if (pLeft->hashBegin < pRight->hashBegin) {
@@ -850,32 +848,6 @@ int ctgVgInfoComp2(const void* lp, const void* rp) {
 }
 
 int32_t ctgHashValueComp(void const* lp, void const* rp) {
-  uint32_t*    key = (uint32_t*)lp;
-  SVgroupInfo* pVg = *(SVgroupInfo**)rp;
-
-  if (*key < pVg->hashBegin) {
-    return -1;
-  } else if (*key > pVg->hashEnd) {
-    return 1;
-  }
-
-  return 0;
-}
-
-int ctgVgInfoComp(const void* lp, const void* rp) {
-  SVgroupInfo* pLeft = *(SVgroupInfo**)lp;
-  SVgroupInfo* pRight = *(SVgroupInfo**)rp;
-  if (pLeft->hashBegin < pRight->hashBegin) {
-    return -1;
-  } else if (pLeft->hashBegin > pRight->hashBegin) {
-    return 1;
-  }
-
-  return 0;
-}
-
-
-int32_t ctgHashValueComp2(void const* lp, void const* rp) {
   uint32_t*    key = (uint32_t*)lp;
   SVgroupInfo* pVg = (SVgroupInfo*)rp;
 
@@ -891,7 +863,7 @@ int32_t ctgHashValueComp2(void const* lp, void const* rp) {
 int32_t ctgGetVgInfoFromHashValue(SCatalog* pCtg, SDBVgInfo* dbInfo, const SName* pTableName, SVgroupInfo* pVgroup) {
   int32_t code = 0;
 
-  int32_t vgNum = taosHashGetSize(dbInfo->vgHash);
+  int32_t vgNum = taosArrayGetSize(dbInfo->vgArray);
   char    db[TSDB_DB_FNAME_LEN] = {0};
   tNameGetFullDbName(pTableName, db);
 
@@ -907,6 +879,9 @@ int32_t ctgGetVgInfoFromHashValue(SCatalog* pCtg, SDBVgInfo* dbInfo, const SName
   uint32_t hashValue = taosGetTbHashVal(tbFullName, (uint32_t)strlen(tbFullName), dbInfo->hashMethod,
                                         dbInfo->hashPrefix, dbInfo->hashSuffix);
 
+  vgInfo = taosArraySearch(dbInfo->vgArray, &hashValue, ctgHashValueComp, TD_EQ);
+
+/*
   void* pIter = taosHashIterate(dbInfo->vgHash, NULL);
   while (pIter) {
     vgInfo = pIter;
@@ -918,84 +893,11 @@ int32_t ctgGetVgInfoFromHashValue(SCatalog* pCtg, SDBVgInfo* dbInfo, const SName
     pIter = taosHashIterate(dbInfo->vgHash, pIter);
     vgInfo = NULL;
   }
+*/
 
   if (NULL == vgInfo) {
     ctgError("0no 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;
-
-  ctgDebug("Got tb %s hash vgroup, vgId:%d, epNum %d, current %s port %d", tbFullName, vgInfo->vgId,
-           vgInfo->epSet.numOfEps, vgInfo->epSet.eps[vgInfo->epSet.inUse].fqdn,
-           vgInfo->epSet.eps[vgInfo->epSet.inUse].port);
-
-  CTG_RET(code);
-}
-
-
-int32_t ctgGetVgInfoFromHashValue2(SCatalog* pCtg, SDBVgInfo* dbInfo, const SName* pTableName, SVgroupInfo* pVgroup) {
-  int32_t code = 0;
-
-  int32_t vgNum = taosHashGetSize(dbInfo->vgHash);
-  char    db[TSDB_DB_FNAME_LEN] = {0};
-  tNameGetFullDbName(pTableName, db);
-
-  if (vgNum <= 0) {
-    ctgError("db vgroup cache invalid, db:%s, vgroup number:%d", db, vgNum);
-    CTG_ERR_RET(TSDB_CODE_TSC_DB_NOT_SELECTED);
-  }
-
-  SVgroupInfo* vgInfo = NULL;
-  char         tbFullName[TSDB_TABLE_FNAME_LEN];
-  tNameExtractFullName(pTableName, tbFullName);
-
-  uint32_t hashValue = taosGetTbHashVal(tbFullName, (uint32_t)strlen(tbFullName), dbInfo->hashMethod,
-                                        dbInfo->hashPrefix, dbInfo->hashSuffix);
-
-  static SArray* pVgList = NULL;
-  static bool created = false;
-
-  if (!created) {
-    ctgDebug("create vg array, %d", taosHashGetSize(dbInfo->vgHash));
-    pVgList = taosArrayInit(100, sizeof(SVgroupInfo));
-    
-    void*   pIter = taosHashIterate(dbInfo->vgHash, NULL);
-    while (pIter) {
-      taosArrayPush(pVgList, pIter);
-      pIter = taosHashIterate(dbInfo->vgHash, pIter);
-    }
-
-    taosArraySort(pVgList, ctgVgInfoComp2);
-    created = true;
-  }
-
-  vgInfo = taosArraySearch(pVgList, &hashValue, ctgHashValueComp2, TD_EQ);
-
-  if (NULL == vgInfo) {
-    void* pIter = taosHashIterate(dbInfo->vgHash, NULL);
-    while (pIter) {
-      vgInfo = pIter;
-      if (hashValue >= vgInfo->hashBegin && hashValue <= vgInfo->hashEnd) {
-        taosHashCancelIterate(dbInfo->vgHash, pIter);
-        break;
-      }
-    
-      pIter = taosHashIterate(dbInfo->vgHash, pIter);
-      vgInfo = NULL;
-    }
-
-    if (vgInfo) {
-      taosArrayDestroy(pVgList);
-      created = false;
-      ctgDebug("need to re-create vg array, %d", taosHashGetSize(dbInfo->vgHash));
-    }
-  }
-
-  if (NULL == vgInfo) {
-    ctgError("1no hash range found for hash value [%u], db:%s, numOfVgId:%d", hashValue, db,
-             taosHashGetSize(dbInfo->vgHash));
+             taosArrayGetSize(dbInfo->vgArray));
     CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
   }
 
@@ -1013,7 +915,7 @@ int32_t ctgGetVgInfosFromHashValue(SCatalog* pCtg, SCtgTaskReq* tReq, SDBVgInfo*
   int32_t   code = 0;
   SCtgTask* pTask = tReq->pTask;
   SMetaRes  res = {0};
-  int32_t   vgNum = taosHashGetSize(dbInfo->vgHash);
+  int32_t   vgNum = taosArrayGetSize(dbInfo->vgArray);
   if (vgNum <= 0) {
     ctgError("db vgroup cache invalid, db:%s, vgroup number:%d", dbFName, vgNum);
     CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
@@ -1023,20 +925,13 @@ int32_t ctgGetVgInfosFromHashValue(SCatalog* pCtg, SCtgTaskReq* tReq, SDBVgInfo*
   int32_t      tbNum = taosArrayGetSize(pNames);
 
   if (1 == vgNum) {
-    void* pIter = taosHashIterate(dbInfo->vgHash, NULL);
-    if (NULL == pIter) {
-      ctgError("empty vgHash, db:%s, vgroup number:%d", dbFName, vgNum);
-      CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
-    }
-    
     for (int32_t i = 0; i < tbNum; ++i) {
       vgInfo = taosMemoryMalloc(sizeof(SVgroupInfo));
       if (NULL == vgInfo) {
-        taosHashCancelIterate(dbInfo->vgHash, pIter);
         CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
       }
 
-      *vgInfo = *(SVgroupInfo*)pIter;
+      *vgInfo = *(SVgroupInfo*)taosArrayGet(dbInfo->vgArray, 0);
 
       ctgDebug("Got tb hash vgroup, vgId:%d, epNum %d, current %s port %d", vgInfo->vgId, vgInfo->epSet.numOfEps,
                vgInfo->epSet.eps[vgInfo->epSet.inUse].fqdn, vgInfo->epSet.eps[vgInfo->epSet.inUse].port);
@@ -1051,19 +946,9 @@ int32_t ctgGetVgInfosFromHashValue(SCatalog* pCtg, SCtgTaskReq* tReq, SDBVgInfo*
       }
     }
 
-    taosHashCancelIterate(dbInfo->vgHash, pIter);
     return TSDB_CODE_SUCCESS;
   }
 
-  SArray* pVgList = taosArrayInit(vgNum, POINTER_BYTES);
-  void*   pIter = taosHashIterate(dbInfo->vgHash, NULL);
-  while (pIter) {
-    taosArrayPush(pVgList, &pIter);
-    pIter = taosHashIterate(dbInfo->vgHash, pIter);
-  }
-
-  taosArraySort(pVgList, ctgVgInfoComp);
-
   char tbFullName[TSDB_TABLE_FNAME_LEN];
   sprintf(tbFullName, "%s.", dbFName);
   int32_t offset = strlen(tbFullName);
@@ -1079,20 +964,15 @@ int32_t ctgGetVgInfosFromHashValue(SCatalog* pCtg, SCtgTaskReq* tReq, SDBVgInfo*
     uint32_t hashValue = taosGetTbHashVal(tbFullName, (uint32_t)strlen(tbFullName), dbInfo->hashMethod,
                                           dbInfo->hashPrefix, dbInfo->hashSuffix);
 
-    SVgroupInfo** p = taosArraySearch(pVgList, &hashValue, ctgHashValueComp, TD_EQ);
-
-    if (NULL == p) {
+    vgInfo = taosArraySearch(dbInfo->vgArray, &hashValue, ctgHashValueComp, TD_EQ);
+    if (NULL == vgInfo) {
       ctgError("2no hash range found for hash value [%u], db:%s, numOfVgId:%d", hashValue, dbFName,
-               taosHashGetSize(dbInfo->vgHash));
-      taosArrayDestroy(pVgList);
+               taosArrayGetSize(dbInfo->vgArray));
       CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
     }
 
-    vgInfo = *p;
-
     SVgroupInfo* pNewVg = taosMemoryMalloc(sizeof(SVgroupInfo));
     if (NULL == pNewVg) {
-      taosArrayDestroy(pVgList);
       CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
     }
 
@@ -1112,8 +992,6 @@ int32_t ctgGetVgInfosFromHashValue(SCatalog* pCtg, SCtgTaskReq* tReq, SDBVgInfo*
     }
   }
 
-  taosArrayDestroy(pVgList);
-
   CTG_RET(code);
 }
 
@@ -1190,6 +1068,10 @@ int32_t ctgCloneVgInfo(SDBVgInfo* src, SDBVgInfo** dst) {
     pIter = taosHashIterate(src->vgHash, pIter);
   }
 
+  if (src->vgArray) {
+    (*dst)->vgArray = taosArrayDup(src->vgArray, NULL);
+  }
+
   return TSDB_CODE_SUCCESS;
 }