diff --git a/include/libs/index/index.h b/include/libs/index/index.h
index d2b157542f7449013869fbca60a812aeebcf5730..47eb97cc3a0e21b28cc0735ff5b8947ede2a77d1 100644
--- a/include/libs/index/index.h
+++ b/include/libs/index/index.h
@@ -76,25 +76,20 @@ void        indexOptsDestroy(SIndexOpts* opts);
  * @param:
  */
 
-SIndexTerm* indexTermCreate(int64_t            suid,
-                            SIndexOperOnColumn operType,
-                            uint8_t            colType,
-                            const char*        colName,
-                            int32_t            nColName,
-                            const char*        colVal,
-                            int32_t            nColVal);
+SIndexTerm* indexTermCreate(int64_t suid, SIndexOperOnColumn operType, uint8_t colType, const char* colName,
+                            int32_t nColName, const char* colVal, int32_t nColVal);
 void        indexTermDestroy(SIndexTerm* p);
 
 /*
- * init index
+ * init index env
  *
  */
-int32_t indexInit();
+void indexInit();
+
 /*
- * destory index
+ * destory index env
  *
  */
-
 void indexCleanUp();
 
 #ifdef __cplusplus
diff --git a/source/dnode/vnode/meta/CMakeLists.txt b/source/dnode/vnode/meta/CMakeLists.txt
index bb48d1acad50210bbca045f7d32b91e642f83a34..70418116174cfd2a4462fec00bc3f5ef684946e3 100644
--- a/source/dnode/vnode/meta/CMakeLists.txt
+++ b/source/dnode/vnode/meta/CMakeLists.txt
@@ -19,11 +19,13 @@ add_library(meta STATIC ${META_SRC})
 target_include_directories(
     meta
     PUBLIC "${CMAKE_SOURCE_DIR}/include/dnode/vnode/meta"
+    PUBLIC "${CMAKE_SOURCE_DIR}/include/libs/index"
     PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/inc"
 )
 target_link_libraries(
     meta
     PUBLIC common
+    PUBLIC index 
 )
 
 if(${META_DB_IMPL} STREQUAL "BDB")
diff --git a/source/dnode/vnode/meta/src/metaIdx.c b/source/dnode/vnode/meta/src/metaIdx.c
index fe07f5ced42ec9d7d2e5a539e84dcddd711a669d..828bd120881fca49fabd2b66ce0e626e8ddc12b2 100644
--- a/source/dnode/vnode/meta/src/metaIdx.c
+++ b/source/dnode/vnode/meta/src/metaIdx.c
@@ -13,9 +13,13 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "index.h"
 #include "metaDef.h"
 
 struct SMetaIdx {
+#ifdef USE_INVERTED_INDEX
+  SIndex *pIdx;
+#endif
   /* data */
 };
 
@@ -43,6 +47,13 @@ int metaOpenIdx(SMeta *pMeta) {
   rocksdb_options_destroy(options);
 #endif
 
+#ifdef USE_INVERTED_INDEX
+  SIndexOpts opts;
+  if (indexOpen(&opts, pMeta->path, &pMeta->pIdx->pIdx) != 0) {
+    return -1;
+  }
+
+#endif
   return 0;
 }
 
@@ -53,14 +64,47 @@ void metaCloseIdx(SMeta *pMeta) { /* TODO */
     pMeta->pIdx = NULL;
   }
 #endif
+
+#ifdef USE_INVERTED_INDEX
+  SIndexOpts opts;
+  if (indexClose(pMeta->pIdx->pIdx) != 0) {
+    return -1;
+  }
+
+#endif
 }
 
-int metaSaveTableToIdx(SMeta *pMeta, const STbCfg *pTbOptions) {
+int metaSaveTableToIdx(SMeta *pMeta, const STbCfg *pTbCfg) {
+#ifdef USE_INVERTED_INDEX
+  if (pTbCfgs - type == META_CHILD_TABLE) {
+    char    buf[8] = {0};
+    int16_t colId = (kvRowColIdx(pTbCfg->ctbCfg.pTag))[0].colId;
+    sprintf(buf, "%d", colId);  // colname
+
+    char *pTagVal = (char *)tdGetKVRowValOfCol(pTbCfg->ctbCfg.pTag, (kvRowColIdx(pTbCfg->ctbCfg.pTag))[0].colId);
+
+    tb_uid_t         suid = pTbCfg->ctbCfg.suid;  // super id
+    tb_uid_t         tuid = 0;                    // child table uid
+    SIndexMultiTerm *terms = indexMultiTermCreate();
+    SIndexTerm *     term =
+        indexTermCreate(suid, ADD_VALUE, TSDB_DATA_TYPE_BINARY, buf, strlen(buf), pTagVal, strlen(pTagVal), tuid);
+    indexMultiTermAdd(terms, term);
+
+    int ret = indexPut(pMeta->pIdx->pIdx, terms);
+    indexMultiTermDestroy(terms);
+    return ret;
+  } else {
+    return DB_DONOTINDEX;
+  }
+#endif
   // TODO
   return 0;
 }
 
 int metaRemoveTableFromIdx(SMeta *pMeta, tb_uid_t uid) {
+#ifdef USE_INVERTED_INDEX
+
+#endif
   // TODO
   return 0;
-}
\ No newline at end of file
+}
diff --git a/source/dnode/vnode/meta/src/metaTbUid.c b/source/dnode/vnode/meta/src/metaTbUid.c
index be85b45d950a80163488e6ebc2c1b7e0ad64b9f2..cad1eba134ca5f0f3ce3a9e63bf3711827fb5562 100644
--- a/source/dnode/vnode/meta/src/metaTbUid.c
+++ b/source/dnode/vnode/meta/src/metaTbUid.c
@@ -22,9 +22,10 @@ int metaOpenUidGnrt(SMeta *pMeta) {
   return 0;
 }
 
-void metaCloseUidGnrt(SMeta *pMeta) { /* TODO */ }
+void metaCloseUidGnrt(SMeta *pMeta) { /* TODO */
+}
 
 tb_uid_t metaGenerateUid(SMeta *pMeta) {
   // Generate a new table UID
   return ++(pMeta->uidGnrt.nextUid);
-}
\ No newline at end of file
+}
diff --git a/source/libs/index/src/index.c b/source/libs/index/src/index.c
index d0b8fa4290d14f3363e3b1046b003fdc071393d2..04dac57d8f07383628bf569080c3d3bf36794807 100644
--- a/source/libs/index/src/index.c
+++ b/source/libs/index/src/index.c
@@ -30,21 +30,17 @@
 
 void* indexQhandle = NULL;
 
-int32_t indexInit() {
+void indexInit() {
+  // refactor later
   indexQhandle = taosInitScheduler(INDEX_QUEUE_SIZE, INDEX_NUM_OF_THREADS, "index");
-  return indexQhandle == NULL ? -1 : 0;
-  // do nothing
 }
 void indexCleanUp() { taosCleanUpScheduler(indexQhandle); }
 
 static int uidCompare(const void* a, const void* b) {
+  // add more version compare
   uint64_t u1 = *(uint64_t*)a;
   uint64_t u2 = *(uint64_t*)b;
-  if (u1 == u2) {
-    return 0;
-  } else {
-    return u1 < u2 ? -1 : 1;
-  }
+  return u1 - u2;
 }
 typedef struct SIdxColInfo {
   int colId;  // generated by index internal
@@ -61,7 +57,7 @@ static int  indexMergeFinalResults(SArray* interResults, EIndexOperatorType oTyp
 static int indexGenTFile(SIndex* index, IndexCache* cache, SArray* batch);
 
 int indexOpen(SIndexOpts* opts, const char* path, SIndex** index) {
-  // pthread_once(&isInit, indexInit);
+  pthread_once(&isInit, indexInit);
   SIndex* sIdx = calloc(1, sizeof(SIndex));
   if (sIdx == NULL) { return -1; }
 
diff --git a/source/libs/index/src/index_tfile.c b/source/libs/index/src/index_tfile.c
index 90a730d3a938fb513e75b2220d5e2e6e7583d6d9..495c4d44770f03e5eb250b8510024a6072e2b29c 100644
--- a/source/libs/index/src/index_tfile.c
+++ b/source/libs/index/src/index_tfile.c
@@ -71,7 +71,10 @@ TFileCache* tfileCacheCreate(const char* path) {
     }
 
     TFileReader* reader = tfileReaderCreate(wc);
-    if (reader == NULL) { goto End; }
+    if (reader == NULL) {
+      indexInfo("skip invalid file: %s", file);
+      continue;
+    }
     TFileHeader* header = &reader->header;
     ICacheKey    key = {.suid = header->suid, .colName = header->colName, .nColName = strlen(header->colName)};