diff --git a/src/tsdb/src/tsdbMeta.c b/src/tsdb/src/tsdbMeta.c
index 9f5b813ac745dc78a5541801ca9753ef48de1c19..7e9eeb6ee8486abecce704f2bd84e0cb50ab52bf 100644
--- a/src/tsdb/src/tsdbMeta.c
+++ b/src/tsdb/src/tsdbMeta.c
@@ -1113,10 +1113,6 @@ static int tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable, bool refSuper
       if (j == 1){
         uint8_t jsonNULL = *(uint8_t*)(varDataVal(val));
         ASSERT(jsonNULL == TSDB_DATA_JSON_NULL);
-
-        SColIdx * pColIdxNull = kvRowColIdxAt(pTable->tagVal, j+1);
-        void* valNull = (kvRowColVal(pTable->tagVal, pColIdxNull));
-        if(*(uint8_t*)(valNull+CHAR_BYTES) == TSDB_DATA_JSON_NOT_NULL) continue;   // do not add null type if json is not null
       }
 
       char keyMd5[TSDB_MAX_JSON_KEY_MD5_LEN] = {0};
@@ -1194,9 +1190,6 @@ static int tsdbRemoveTableFromIndex(STsdbMeta *pMeta, STable *pTable) {
       if (j == 1){
         uint8_t jsonNULL = *(uint8_t*)(varDataVal(val));
         ASSERT(jsonNULL == TSDB_DATA_JSON_NULL);
-        SColIdx * pColIdxNull = kvRowColIdxAt(pTable->tagVal, j+1);
-        void* valNull = (kvRowColVal(pTable->tagVal, pColIdxNull));
-        if(*(uint8_t*)(valNull+CHAR_BYTES) == TSDB_DATA_JSON_NOT_NULL) continue;
       }
 
       char keyMd5[TSDB_MAX_JSON_KEY_MD5_LEN] = {0};