diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 22e91bd658d5769e80163dea3388e567294ae6c5..ea88e4a935159d59a439d0f0218ef247803ea1ed 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -4490,7 +4490,7 @@ int32_t setAlterTableInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
     pUpdateMsg->tid       = htonl(pTableMeta->sid);
     pUpdateMsg->uid       = htobe64(pTableMeta->uid);
     pUpdateMsg->colId     = htons(pTagsSchema->colId);
-    pUpdateMsg->type      = htons(pTagsSchema->type);
+    pUpdateMsg->type      = pTagsSchema->type;
     pUpdateMsg->bytes     = htons(pTagsSchema->bytes);
     pUpdateMsg->tversion  = htons(pTableMeta->tversion);
     pUpdateMsg->numOfTags = htons(numOfTags);
diff --git a/src/inc/taosmsg.h b/src/inc/taosmsg.h
index 65cabe6bc1ca2a5d471a84988b7bcbdd18114c38..8c987b6ef18750c2f422bd53684cc6fcd89ef0c7 100644
--- a/src/inc/taosmsg.h
+++ b/src/inc/taosmsg.h
@@ -284,7 +284,7 @@ typedef struct {
   int32_t   tid;
   int16_t   tversion;
   int16_t   colId;
-  int16_t   type;
+  int8_t    type;
   int16_t   bytes;
   int32_t   tagValLen;
   int16_t   numOfTags;
diff --git a/src/tsdb/inc/tsdbMain.h b/src/tsdb/inc/tsdbMain.h
index b84a2c1243c496fbf24d917b297e8b43b2b076cd..d856650b0ee245bdd132e4e3fb22e25dfb8aa40a 100644
--- a/src/tsdb/inc/tsdbMain.h
+++ b/src/tsdb/inc/tsdbMain.h
@@ -294,38 +294,12 @@ typedef struct {
 #define TABLE_SUID(t) (t)->suid
 #define TABLE_LASTKEY(t) (t)->lastKey
 
-static FORCE_INLINE STSchema *tsdbGetTableSchema(STable *pTable) {
-  if (pTable->type == TSDB_CHILD_TABLE) {  // check child table first
-    STable *pSuper = pTable->pSuper;
-    if (pSuper == NULL) return NULL;
-    return pSuper->schema[pSuper->numOfSchemas - 1];
-  } else if (pTable->type == TSDB_NORMAL_TABLE || pTable->type == TSDB_SUPER_TABLE || pTable->type == TSDB_STREAM_TABLE) {
-    return pTable->schema[pTable->numOfSchemas - 1];
-  } else {
-    return NULL;
-  }
-}
-
-static FORCE_INLINE STSchema *tsdbGetTableTagSchema(STable *pTable) {
-  if (pTable->type == TSDB_CHILD_TABLE) {  // check child table first
-    STable *pSuper = pTable->pSuper;
-    if (pSuper == NULL) return NULL;
-    return pSuper->tagSchema;
-  } else if (pTable->type == TSDB_SUPER_TABLE) {
-    return pTable->tagSchema;
-  } else {
-    return NULL;
-  }
-}
-
 STsdbMeta* tsdbNewMeta(STsdbCfg* pCfg);
 void       tsdbFreeMeta(STsdbMeta* pMeta);
 int        tsdbOpenMeta(STsdbRepo* pRepo);
 int        tsdbCloseMeta(STsdbRepo* pRepo);
 STable*    tsdbGetTableByUid(STsdbMeta* pMeta, uint64_t uid);
 STSchema*  tsdbGetTableSchemaByVersion(STable* pTable, int16_t version);
-STSchema*  tsdbGetTableTagSchema(STable* pTable);
-// int        tsdbUpdateTable(STsdbRepo* pRepo, STable* pTable, STableCfg* pCfg);
 int        tsdbWLockRepoMeta(STsdbRepo* pRepo);
 int        tsdbRLockRepoMeta(STsdbRepo* pRepo);
 int        tsdbUnlockRepoMeta(STsdbRepo* pRepo);
@@ -374,6 +348,22 @@ _exit:
   return pSchema;
 }
 
+static FORCE_INLINE STSchema* tsdbGetTableSchema(STable* pTable) {
+  return tsdbGetTableSchemaImpl(pTable, false, false, -1);
+}
+
+static FORCE_INLINE STSchema *tsdbGetTableTagSchema(STable *pTable) {
+  if (pTable->type == TSDB_CHILD_TABLE) {  // check child table first
+    STable *pSuper = pTable->pSuper;
+    if (pSuper == NULL) return NULL;
+    return pSuper->tagSchema;
+  } else if (pTable->type == TSDB_SUPER_TABLE) {
+    return pTable->tagSchema;
+  } else {
+    return NULL;
+  }
+}
+
 // ------------------ tsdbBuffer.c
 STsdbBufPool* tsdbNewBufPool();
 void          tsdbFreeBufPool(STsdbBufPool* pBufPool);
diff --git a/src/tsdb/src/tsdbMeta.c b/src/tsdb/src/tsdbMeta.c
index 14da6cb4568796ea2441872f9984c4c63f21b415..be9b8f75191f660d42629d57e31825a277d8cb54 100644
--- a/src/tsdb/src/tsdbMeta.c
+++ b/src/tsdb/src/tsdbMeta.c
@@ -282,7 +282,6 @@ int tsdbUpdateTableTagValue(TSDB_REPO_T *repo, SUpdateTableTagValMsg *pMsg) {
   pMsg->tid = htonl(pMsg->tid);
   pMsg->tversion  = htons(pMsg->tversion);
   pMsg->colId     = htons(pMsg->colId);
-  pMsg->type      = htons(pMsg->type);
   pMsg->bytes     = htons(pMsg->bytes);
   pMsg->tagValLen = htonl(pMsg->tagValLen);
   pMsg->numOfTags = htons(pMsg->numOfTags);
@@ -358,15 +357,15 @@ int tsdbUpdateTableTagValue(TSDB_REPO_T *repo, SUpdateTableTagValMsg *pMsg) {
   }
 
   bool      isChangeIndexCol = (pMsg->colId == colColId(schemaColAt(pTable->pSuper->tagSchema, 0)));
-  STColumn *pCol = bsearch(&(pMsg->colId), pMsg->data, pMsg->numOfTags, sizeof(STColumn), colIdCompar);
-  ASSERT(pCol != NULL);
+  // STColumn *pCol = bsearch(&(pMsg->colId), pMsg->data, pMsg->numOfTags, sizeof(STColumn), colIdCompar);
+  // ASSERT(pCol != NULL);
 
   if (isChangeIndexCol) {
     tsdbWLockRepoMeta(pRepo);
     tsdbRemoveTableFromIndex(pMeta, pTable);
   }
   taosWLockLatch(&(pTable->latch));
-  tdSetKVRowDataOfCol(&(pTable->tagVal), pMsg->colId, pCol->type, POINTER_SHIFT(pMsg->data, pMsg->schemaLen));
+  tdSetKVRowDataOfCol(&(pTable->tagVal), pMsg->colId, pMsg->type, POINTER_SHIFT(pMsg->data, pMsg->schemaLen));
   taosWUnLockLatch(&(pTable->latch));
   if (isChangeIndexCol) {
     tsdbAddTableIntoIndex(pMeta, pTable, false);
@@ -486,8 +485,6 @@ int tsdbCloseMeta(STsdbRepo *pRepo) {
   return 0;
 }
 
-STSchema *tsdbGetTableSchema(STable *pTable) { return tsdbGetTableSchemaImpl(pTable, true, false, -1); }
-
 STable *tsdbGetTableByUid(STsdbMeta *pMeta, uint64_t uid) {
   void *ptr = taosHashGet(pMeta->uidMap, (char *)(&uid), sizeof(uid));
 
@@ -500,18 +497,6 @@ STSchema *tsdbGetTableSchemaByVersion(STable *pTable, int16_t version) {
   return tsdbGetTableSchemaImpl(pTable, true, false, version);
 }
 
-STSchema *tsdbGetTableTagSchema(STable *pTable) {
-  if (pTable->type == TSDB_SUPER_TABLE) {
-    return pTable->tagSchema;
-  } else if (pTable->type == TSDB_CHILD_TABLE) {
-    STable *pSuper = pTable->pSuper;
-    if (pSuper == NULL) return NULL;
-    return pSuper->tagSchema;
-  } else {
-    return NULL;
-  }
-}
-
 int tsdbWLockRepoMeta(STsdbRepo *pRepo) {
   int code = pthread_rwlock_wrlock(&(pRepo->tsdbMeta->rwLock));
   if (code != 0) {