diff --git a/source/dnode/vnode/src/meta/metaOpen.c b/source/dnode/vnode/src/meta/metaOpen.c
index e65f5229af604c98daff563624b66abc94c14930..85a49ffabd81499bd39d86b836fb0850d62b2abe 100644
--- a/source/dnode/vnode/src/meta/metaOpen.c
+++ b/source/dnode/vnode/src/meta/metaOpen.c
@@ -47,66 +47,66 @@ int metaOpen(SVnode *pVnode, SMeta **ppMeta) {
   // open env
   ret = tdbEnvOpen(pMeta->path, pVnode->config.szPage, pVnode->config.szCache, &pMeta->pEnv);
   if (ret < 0) {
-    metaError("vgId: %d failed to open meta env since %s", TD_VID(pVnode), tstrerror(terrno));
+    metaError("vgId:%d failed to open meta env since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open pTbDb
   ret = tdbDbOpen("table.db", sizeof(STbDbKey), -1, tbDbKeyCmpr, pMeta->pEnv, &pMeta->pTbDb);
   if (ret < 0) {
-    metaError("vgId: %d failed to open meta table db since %s", TD_VID(pVnode), tstrerror(terrno));
+    metaError("vgId:%d failed to open meta table db since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open pSkmDb
   ret = tdbDbOpen("schema.db", sizeof(SSkmDbKey), -1, skmDbKeyCmpr, pMeta->pEnv, &pMeta->pSkmDb);
   if (ret < 0) {
-    metaError("vgId: %d failed to open meta schema db since %s", TD_VID(pVnode), tstrerror(terrno));
+    metaError("vgId:%d failed to open meta schema db since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open pUidIdx
   ret = tdbDbOpen("uid.idx", sizeof(tb_uid_t), sizeof(int64_t), uidIdxKeyCmpr, pMeta->pEnv, &pMeta->pUidIdx);
   if (ret < 0) {
-    metaError("vgId: %d failed to open meta uid idx since %s", TD_VID(pVnode), tstrerror(terrno));
+    metaError("vgId:%d failed to open meta uid idx since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open pNameIdx
   ret = tdbDbOpen("name.idx", -1, sizeof(tb_uid_t), NULL, pMeta->pEnv, &pMeta->pNameIdx);
   if (ret < 0) {
-    metaError("vgId: %d failed to open meta name index since %s", TD_VID(pVnode), tstrerror(terrno));
+    metaError("vgId:%d failed to open meta name index since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open pCtbIdx
   ret = tdbDbOpen("ctb.idx", sizeof(SCtbIdxKey), 0, ctbIdxKeyCmpr, pMeta->pEnv, &pMeta->pCtbIdx);
   if (ret < 0) {
-    metaError("vgId: %d failed to open meta child table index since %s", TD_VID(pVnode), tstrerror(terrno));
+    metaError("vgId:%d failed to open meta child table index since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open pTagIdx
   ret = tdbDbOpen("tag.idx", -1, 0, tagIdxKeyCmpr, pMeta->pEnv, &pMeta->pTagIdx);
   if (ret < 0) {
-    metaError("vgId: %d failed to open meta tag index since %s", TD_VID(pVnode), tstrerror(terrno));
+    metaError("vgId:%d failed to open meta tag index since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open pTtlIdx
   ret = tdbDbOpen("ttl.idx", sizeof(STtlIdxKey), 0, ttlIdxKeyCmpr, pMeta->pEnv, &pMeta->pTtlIdx);
   if (ret < 0) {
-    metaError("vgId: %d failed to open meta ttl index since %s", TD_VID(pVnode), tstrerror(terrno));
+    metaError("vgId:%d failed to open meta ttl index since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open index
   if (metaOpenIdx(pMeta) < 0) {
-    metaError("vgId: %d failed to open meta index since %s", TD_VID(pVnode), tstrerror(terrno));
+    metaError("vgId:%d failed to open meta index since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
-  metaDebug("vgId: %d meta is opened", TD_VID(pVnode));
+  metaDebug("vgId:%d meta is opened", TD_VID(pVnode));
 
   *ppMeta = pMeta;
   return 0;
diff --git a/source/dnode/vnode/src/tsdb/tsdbOpen.c b/source/dnode/vnode/src/tsdb/tsdbOpen.c
index 538c944a391c7ca72d62239df0c4ce54e2651534..e3580958f6fbac1a59f7e626497e729cd43f2760 100644
--- a/source/dnode/vnode/src/tsdb/tsdbOpen.c
+++ b/source/dnode/vnode/src/tsdb/tsdbOpen.c
@@ -45,7 +45,7 @@ int tsdbOpen(SVnode *pVnode, STsdb **ppTsdb) {
     goto _err;
   }
 
-  tsdbDebug("vgId: %d tsdb is opened", TD_VID(pVnode));
+  tsdbDebug("vgId:%d tsdb is opened", TD_VID(pVnode));
 
   *ppTsdb = pTsdb;
   return 0;
diff --git a/source/dnode/vnode/src/vnd/vnodeCommit.c b/source/dnode/vnode/src/vnd/vnodeCommit.c
index 1c0e65aa95a8a0aa543b101ef92f21444b2fef52..5412b5d1c2bc3bb6d32aef067ecd62c6974a8032 100644
--- a/source/dnode/vnode/src/vnd/vnodeCommit.c
+++ b/source/dnode/vnode/src/vnd/vnodeCommit.c
@@ -42,13 +42,13 @@ int vnodeBegin(SVnode *pVnode) {
 
   // begin meta
   if (metaBegin(pVnode->pMeta) < 0) {
-    vError("vgId: %d failed to begin meta since %s", TD_VID(pVnode), tstrerror(terrno));
+    vError("vgId:%d failed to begin meta since %s", TD_VID(pVnode), tstrerror(terrno));
     return -1;
   }
 
   // begin tsdb
   if (tsdbBegin(pVnode->pTsdb) < 0) {
-    vError("vgId: %d failed to begin tsdb since %s", TD_VID(pVnode), tstrerror(terrno));
+    vError("vgId:%d failed to begin tsdb since %s", TD_VID(pVnode), tstrerror(terrno));
     return -1;
   }
 
@@ -93,7 +93,7 @@ int vnodeSaveInfo(const char *dir, const SVnodeInfo *pInfo) {
   // free info binary
   taosMemoryFree(data);
 
-  vInfo("vgId: %d vnode info is saved, fname: %s", pInfo->config.vgId, fname);
+  vInfo("vgId:%d vnode info is saved, fname: %s", pInfo->config.vgId, fname);
 
   return 0;
 
@@ -115,7 +115,7 @@ int vnodeCommitInfo(const char *dir, const SVnodeInfo *pInfo) {
     return -1;
   }
 
-  vInfo("vgId: %d vnode info is committed", pInfo->config.vgId);
+  vInfo("vgId:%d vnode info is committed", pInfo->config.vgId);
 
   return 0;
 }
diff --git a/source/dnode/vnode/src/vnd/vnodeOpen.c b/source/dnode/vnode/src/vnd/vnodeOpen.c
index ee64976df972e65a9af2865cf6fb2dc7d780acc0..63f55fddfd26cb6f091f32d10c01cdc4e9329ae3 100644
--- a/source/dnode/vnode/src/vnd/vnodeOpen.c
+++ b/source/dnode/vnode/src/vnd/vnodeOpen.c
@@ -23,13 +23,13 @@ int vnodeCreate(const char *path, SVnodeCfg *pCfg, STfs *pTfs) {
 
   // check config
   if (vnodeCheckCfg(pCfg) < 0) {
-    vError("vgId: %d failed to create vnode since: %s", pCfg->vgId, tstrerror(terrno));
+    vError("vgId:%d failed to create vnode since: %s", pCfg->vgId, tstrerror(terrno));
     return -1;
   }
 
   // create vnode env
   if (tfsMkdir(pTfs, path) < 0) {
-    vError("vgId: %d failed to create vnode since: %s", pCfg->vgId, tstrerror(terrno));
+    vError("vgId:%d failed to create vnode since: %s", pCfg->vgId, tstrerror(terrno));
     return -1;
   }
 
@@ -39,11 +39,11 @@ int vnodeCreate(const char *path, SVnodeCfg *pCfg, STfs *pTfs) {
   info.state.applied = -1;
 
   if (vnodeSaveInfo(dir, &info) < 0 || vnodeCommitInfo(dir, &info) < 0) {
-    vError("vgId: %d failed to save vnode config since %s", pCfg->vgId, tstrerror(terrno));
+    vError("vgId:%d failed to save vnode config since %s", pCfg->vgId, tstrerror(terrno));
     return -1;
   }
 
-  vInfo("vgId: %d vnode is created", pCfg->vgId);
+  vInfo("vgId:%d vnode is created", pCfg->vgId);
 
   return 0;
 }
@@ -70,7 +70,7 @@ SVnode *vnodeOpen(const char *path, STfs *pTfs, SMsgCb msgCb) {
   pVnode = (SVnode *)taosMemoryCalloc(1, sizeof(*pVnode) + strlen(path) + 1);
   if (pVnode == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
-    vError("vgId: %d failed to open vnode since %s", info.config.vgId, tstrerror(terrno));
+    vError("vgId:%d failed to open vnode since %s", info.config.vgId, tstrerror(terrno));
     return NULL;
   }
 
@@ -85,19 +85,19 @@ SVnode *vnodeOpen(const char *path, STfs *pTfs, SMsgCb msgCb) {
 
   // open buffer pool
   if (vnodeOpenBufPool(pVnode, pVnode->config.isHeap ? 0 : pVnode->config.szBuf / 3) < 0) {
-    vError("vgId: %d failed to open vnode buffer pool since %s", TD_VID(pVnode), tstrerror(terrno));
+    vError("vgId:%d failed to open vnode buffer pool since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open meta
   if (metaOpen(pVnode, &pVnode->pMeta) < 0) {
-    vError("vgId: %d failed to open vnode meta since %s", TD_VID(pVnode), tstrerror(terrno));
+    vError("vgId:%d failed to open vnode meta since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open tsdb
   if (tsdbOpen(pVnode, &pVnode->pTsdb) < 0) {
-    vError("vgId: %d failed to open vnode tsdb since %s", TD_VID(pVnode), tstrerror(terrno));
+    vError("vgId:%d failed to open vnode tsdb since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
@@ -105,7 +105,7 @@ SVnode *vnodeOpen(const char *path, STfs *pTfs, SMsgCb msgCb) {
   sprintf(tdir, "%s%s%s", dir, TD_DIRSEP, VNODE_WAL_DIR);
   pVnode->pWal = walOpen(tdir, &(pVnode->config.walCfg));
   if (pVnode->pWal == NULL) {
-    vError("vgId: %d failed to open vnode wal since %s", TD_VID(pVnode), tstrerror(terrno));
+    vError("vgId:%d failed to open vnode wal since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
@@ -113,25 +113,25 @@ SVnode *vnodeOpen(const char *path, STfs *pTfs, SMsgCb msgCb) {
   sprintf(tdir, "%s%s%s", dir, TD_DIRSEP, VNODE_TQ_DIR);
   pVnode->pTq = tqOpen(tdir, pVnode, pVnode->pWal);
   if (pVnode->pTq == NULL) {
-    vError("vgId: %d failed to open vnode tq since %s", TD_VID(pVnode), tstrerror(terrno));
+    vError("vgId:%d failed to open vnode tq since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open query
   if (vnodeQueryOpen(pVnode)) {
-    vError("vgId: %d failed to open vnode query since %s", TD_VID(pVnode), tstrerror(terrno));
+    vError("vgId:%d failed to open vnode query since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // vnode begin
   if (vnodeBegin(pVnode) < 0) {
-    vError("vgId: %d failed to begin since %s", TD_VID(pVnode), tstrerror(terrno));
+    vError("vgId:%d failed to begin since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
   // open sync
   if (vnodeSyncOpen(pVnode, dir)) {
-    vError("vgId: %d failed to open sync since %s", TD_VID(pVnode), tstrerror(terrno));
+    vError("vgId:%d failed to open sync since %s", TD_VID(pVnode), tstrerror(terrno));
     goto _err;
   }
 
diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index 8c01a61bba91db13f64cf4eddaee651adb56e653..d36f7d919c409c38824163509ee24f9ac3a278be 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -52,7 +52,7 @@ int vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRpcMsg
   int   len;
   int   ret;
 
-  vTrace("vgId: %d start to process write request %s, version %" PRId64, TD_VID(pVnode), TMSG_INFO(pMsg->msgType),
+  vTrace("vgId:%d start to process write request %s, version %" PRId64, TD_VID(pVnode), TMSG_INFO(pMsg->msgType),
          version);
 
   pVnode->state.applied = version;
@@ -62,7 +62,7 @@ int vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRpcMsg
   len = pMsg->contLen - sizeof(SMsgHead);
 
   if (tqPushMsg(pVnode->pTq, pMsg->pCont, pMsg->contLen, pMsg->msgType, version) < 0) {
-    vError("vgId: %d failed to push msg to TQ since %s", TD_VID(pVnode), tstrerror(terrno));
+    vError("vgId:%d failed to push msg to TQ since %s", TD_VID(pVnode), tstrerror(terrno));
     return -1;
   }
 
@@ -119,7 +119,7 @@ int vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRpcMsg
       break;
   }
 
-  vDebug("vgId: %d process %s request success, version: %" PRId64, TD_VID(pVnode), TMSG_INFO(pMsg->msgType), version);
+  vDebug("vgId:%d process %s request success, version: %" PRId64, TD_VID(pVnode), TMSG_INFO(pMsg->msgType), version);
 
   // commit if need
   if (vnodeShouldCommit(pVnode)) {
@@ -134,7 +134,7 @@ int vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRpcMsg
   return 0;
 
 _err:
-  vDebug("vgId: %d process %s request failed since %s, version: %" PRId64, TD_VID(pVnode), TMSG_INFO(pMsg->msgType),
+  vDebug("vgId:%d process %s request failed since %s, version: %" PRId64, TD_VID(pVnode), TMSG_INFO(pMsg->msgType),
          tstrerror(terrno), version);
   return -1;
 }
diff --git a/source/libs/tdb/inc/tdb.h b/source/libs/tdb/inc/tdb.h
index 25216089b8b93bd7228570a2409c8a7580d7a27c..174a86657b8b6f053ea417bdfb59c43a3c937665 100644
--- a/source/libs/tdb/inc/tdb.h
+++ b/source/libs/tdb/inc/tdb.h
@@ -45,17 +45,18 @@ int tdbDbGet(TDB *pDb, const void *pKey, int kLen, void **ppVal, int *vLen);
 int tdbDbPGet(TDB *pDb, const void *pKey, int kLen, void **ppKey, int *pkLen, void **ppVal, int *vLen);
 
 // TDBC
-#define TDB_FLG_CMP_LT 0x1  // less than
-#define TDB_FLG_CMP_EQ 0x2  // equal
-#define TDB_FLG_CMP_GT 0x4  // greater than
-
 int tdbDbcOpen(TDB *pDb, TDBC **ppDbc, TXN *pTxn);
-int tdbDbcMoveTo(TDBC *pDbc, const void *pKey, int kLen);
+int tdbDbcClose(TDBC *pDbc);
+int tdbDbcMoveTo(TDBC *pDbc, const void *pKey, int kLen, int *c);
+int tdbDbcMoveToFirst(TDBC *pDbc);
+int tdbDbcMoveToLast(TDBC *pDbc);
+int tdbDbcMoveToNext(TDBC *pDbc);
+int tdbDbcMoveToPrev(TDBC *pDbc);
+
 int tdbDbcPut(TDBC *pDbc, const void *pKey, int keyLen, const void *pVal, int valLen);
 int tdbDbcUpdate(TDBC *pDbc, const void *pKey, int kLen, const void *pVal, int vLen);
 int tdbDbcDrop(TDBC *pDbc);
 int tdbDbcNext(TDBC *pDbc, void **ppKey, int *kLen, void **ppVal, int *vLen);
-int tdbDbcClose(TDBC *pDbc);
 
 // TXN
 #define TDB_TXN_WRITE            0x1
diff --git a/source/libs/tdb/src/db/tdbBtree.c b/source/libs/tdb/src/db/tdbBtree.c
index 74e56d8d14fc7b92c53a2f3d072a5121fd2fac16..a87e14893c050fec547c98a10aa58775df1331ce 100644
--- a/source/libs/tdb/src/db/tdbBtree.c
+++ b/source/libs/tdb/src/db/tdbBtree.c
@@ -1310,13 +1310,10 @@ int tdbBtcMoveTo(SBTC *pBtc, const void *pKey, int kLen, int *pCRst) {
   int          ret;
   int          nCells;
   int          c;
-  SBTree      *pBt;
   SCell       *pCell;
-  SPager      *pPager;
   SCellDecoder cd = {0};
-
-  pBt = pBtc->pBt;
-  pPager = pBt->pPager;
+  SBTree      *pBt = pBtc->pBt;
+  SPager      *pPager = pBt->pPager;
 
   if (pBtc->iPage < 0) {
     // move from a clear cursor
diff --git a/source/libs/tdb/src/db/tdbDb.c b/source/libs/tdb/src/db/tdbDb.c
index d7b5d0df34463ecc962d124f2a58e271d38c0838..22d1f18885d31449d5062807c80c0f949320a1d3 100644
--- a/source/libs/tdb/src/db/tdbDb.c
+++ b/source/libs/tdb/src/db/tdbDb.c
@@ -111,8 +111,15 @@ int tdbDbcOpen(TDB *pDb, TDBC **ppDbc, TXN *pTxn) {
   return 0;
 }
 
-int tdbDbcMoveTo(TDBC *pDbc, const void *pKey, int kLen) {
-  // return tdbBtcMoveTo(&pDbc->btc, pKey, kLen, flags);
+int tdbDbcMoveTo(TDBC *pDbc, const void *pKey, int kLen, int *c) { return tdbBtcMoveTo(&pDbc->btc, pKey, kLen, c); }
+
+int tdbDbcMoveToFirst(TDBC *pDbc) { return tdbBtcMoveToFirst(&pDbc->btc); }
+
+int tdbDbcMoveToLast(TDBC *pDbc) { return tdbBtcMoveToLast(&pDbc->btc); }
+
+int tdbDbcMoveToNext(TDBC *pDbc) { return 0; }
+int tdbDbcMoveToPrev(TDBC *pDbc) {
+  // TODO
   return 0;
 }