diff --git a/src/tsdb/inc/tsdbMain.h b/src/tsdb/inc/tsdbMain.h
index 6119f7086c..16a2e17f1e 100644
--- a/src/tsdb/inc/tsdbMain.h
+++ b/src/tsdb/inc/tsdbMain.h
@@ -151,18 +151,10 @@ typedef struct {
 // ------------------ tsdbFile.c
 extern const char* tsdbFileSuffix[];
 typedef enum {
-#ifdef TSDB_IDX
-  TSDB_FILE_TYPE_IDX = 0,
-  TSDB_FILE_TYPE_HEAD,
-#else
   TSDB_FILE_TYPE_HEAD = 0,
-#endif
   TSDB_FILE_TYPE_DATA,
   TSDB_FILE_TYPE_LAST,
   TSDB_FILE_TYPE_MAX,
-#ifdef TSDB_IDX
-  TSDB_FILE_TYPE_NIDX,
-#endif
   TSDB_FILE_TYPE_NHEAD,
   TSDB_FILE_TYPE_NLAST
 } TSDB_FILE_TYPE;
@@ -281,9 +273,6 @@ typedef struct {
   TSKEY      minKey;
   TSKEY      maxKey;
   SFileGroup fGroup;
-#ifdef TSDB_IDX
-  SFile nIdxF;
-#endif
   SFile      nHeadF;
   SFile      nLastF;
 } SHelperFile;
@@ -497,10 +486,6 @@ void        tsdbGetFidKeyRange(int daysPerFile, int8_t precision, int fileId, TS
 #define helperState(h) (h)->state
 #define TSDB_NLAST_FILE_OPENED(h) ((h)->files.nLastF.fd > 0)
 #define helperFileId(h) ((h)->files.fGroup.fileId)
-#ifdef TSDB_IDX
-#define helperIdxF(h) (&((h)->files.fGroup.files[TSDB_FILE_TYPE_IDX]))
-#define helperNewIdxF(h) (&((h)->files.nIdxF))
-#endif
 #define helperHeadF(h) (&((h)->files.fGroup.files[TSDB_FILE_TYPE_HEAD]))
 #define helperDataF(h) (&((h)->files.fGroup.files[TSDB_FILE_TYPE_DATA]))
 #define helperLastF(h) (&((h)->files.fGroup.files[TSDB_FILE_TYPE_LAST]))
diff --git a/src/tsdb/src/tsdbFile.c b/src/tsdb/src/tsdbFile.c
index 8cec7c08e1..a5435ad872 100644
--- a/src/tsdb/src/tsdbFile.c
+++ b/src/tsdb/src/tsdbFile.c
@@ -20,11 +20,7 @@
 #include "tutil.h"
 #define TAOS_RANDOM_FILE_FAIL_TEST
 
-#ifdef TSDB_IDX
-const char *tsdbFileSuffix[] = {".idx", ".head", ".data", ".last", "", ".i", ".h", ".l"};
-#else
 const char *tsdbFileSuffix[] = {".head", ".data", ".last", "", ".h", ".l"};
-#endif
 
 static int   tsdbInitFile(SFile *pFile, STsdbRepo *pRepo, int fid, int type);
 static void  tsdbDestroyFile(SFile *pFile);
diff --git a/src/tsdb/src/tsdbMemTable.c b/src/tsdb/src/tsdbMemTable.c
index 990db76b7e..0303c47146 100644
--- a/src/tsdb/src/tsdbMemTable.c
+++ b/src/tsdb/src/tsdbMemTable.c
@@ -683,11 +683,6 @@ static int tsdbCommitToFile(STsdbRepo *pRepo, int fid, SCommitIter *iters, SRWHe
 
   pthread_rwlock_wrlock(&(pFileH->fhlock));
 
-#ifdef TSDB_IDX
-  rename(helperNewIdxF(pHelper)->fname, helperIdxF(pHelper)->fname);
-  pGroup->files[TSDB_FILE_TYPE_IDX].info = helperNewIdxF(pHelper)->info;
-#endif
-
   rename(helperNewHeadF(pHelper)->fname, helperHeadF(pHelper)->fname);
   pGroup->files[TSDB_FILE_TYPE_HEAD].info = helperNewHeadF(pHelper)->info;
 
diff --git a/src/tsdb/src/tsdbRWHelper.c b/src/tsdb/src/tsdbRWHelper.c
index fb79747d30..4b5acd8fe4 100644
--- a/src/tsdb/src/tsdbRWHelper.c
+++ b/src/tsdb/src/tsdbRWHelper.c
@@ -110,31 +110,16 @@ int tsdbSetAndOpenHelperFile(SRWHelper *pHelper, SFileGroup *pGroup) {
   // Set the files
   pHelper->files.fGroup = *pGroup;
   if (helperType(pHelper) == TSDB_WRITE_HELPER) {
-#ifdef TSDB_IDX
-    tsdbGetDataFileName(pHelper->pRepo, pGroup->fileId, TSDB_FILE_TYPE_NIDX, helperNewIdxF(pHelper)->fname);
-#endif
     tsdbGetDataFileName(pHelper->pRepo, pGroup->fileId, TSDB_FILE_TYPE_NHEAD, helperNewHeadF(pHelper)->fname);
     tsdbGetDataFileName(pHelper->pRepo, pGroup->fileId, TSDB_FILE_TYPE_NLAST, helperNewLastF(pHelper)->fname);
   }
 
   // Open the files
-#ifdef TSDB_IDX
-  if (tsdbOpenFile(helperIdxF(pHelper), O_RDONLY) < 0) return -1;
-#endif
   if (tsdbOpenFile(helperHeadF(pHelper), O_RDONLY) < 0) return -1;
   if (helperType(pHelper) == TSDB_WRITE_HELPER) {
     if (tsdbOpenFile(helperDataF(pHelper), O_RDWR) < 0) return -1;
     if (tsdbOpenFile(helperLastF(pHelper), O_RDWR) < 0) return -1;
 
-#ifdef TSDB_IDX
-    // Create and open .i file
-    pFile = helperNewIdxF(pHelper);
-    if (tsdbOpenFile(pFile, O_WRONLY | O_CREAT) < 0) return -1;
-    pFile->info.size = TSDB_FILE_HEAD_SIZE;
-    pFile->info.magic = TSDB_FILE_INIT_MAGIC;
-    if (tsdbUpdateFileHeader(pFile) < 0) return -1;
-#endif
-
     // Create and open .h
     pFile = helperNewHeadF(pHelper);
     if (tsdbOpenFile(pFile, O_WRONLY | O_CREAT) < 0) return -1;
@@ -164,11 +149,6 @@ int tsdbSetAndOpenHelperFile(SRWHelper *pHelper, SFileGroup *pGroup) {
 int tsdbCloseHelperFile(SRWHelper *pHelper, bool hasError) {
   SFile *pFile = NULL;
 
-#ifdef TSDB_IDX
-  pFile = helperIdxF(pHelper);
-  tsdbCloseFile(pFile);
-#endif
-
   pFile = helperHeadF(pHelper);
   tsdbCloseFile(pFile);
 
@@ -199,18 +179,6 @@ int tsdbCloseHelperFile(SRWHelper *pHelper, bool hasError) {
   }
 
   if (helperType(pHelper) == TSDB_WRITE_HELPER) {
-#ifdef TSDB_IDX
-    pFile = helperNewIdxF(pHelper);
-    if (pFile->fd > 0) {
-      if (!hasError) {
-        tsdbUpdateFileHeader(pFile);
-        fsync(pFile->fd);
-      }
-      tsdbCloseFile(pFile);
-      if (hasError) (void)remove(pFile->fname);
-    }
-#endif
-
     pFile = helperNewHeadF(pHelper);
     if (pFile->fd > 0) {
       if (!hasError) {
@@ -412,10 +380,6 @@ int tsdbWriteCompInfo(SRWHelper *pHelper) {
       return -1;
     }
 
-#ifdef TSDB_IDX
-    pFile = helperNewIdxF(pHelper);
-#endif
-
     if (taosTSizeof(pHelper->pWIdx) < pFile->info.len + sizeof(SCompIdx) + 12) {
       pHelper->pWIdx = taosTRealloc(pHelper->pWIdx, taosTSizeof(pHelper->pWIdx) == 0 ? 1024 : taosTSizeof(pHelper->pWIdx) * 2);
       if (pHelper->pWIdx == NULL) {
@@ -435,11 +399,7 @@ int tsdbWriteCompIdx(SRWHelper *pHelper) {
   ASSERT(helperType(pHelper) == TSDB_WRITE_HELPER);
   off_t offset = 0;
 
-#ifdef TSDB_IDX
-  SFile *pFile = helperNewIdxF(pHelper);
-#else
   SFile *pFile = helperNewHeadF(pHelper);
-#endif
 
   pFile->info.len += sizeof(TSCKSUM);
   if (taosTSizeof(pHelper->pWIdx) < pFile->info.len) {
@@ -474,11 +434,7 @@ int tsdbWriteCompIdx(SRWHelper *pHelper) {
 
 int tsdbLoadCompIdx(SRWHelper *pHelper, void *target) {
   ASSERT(pHelper->state == TSDB_HELPER_FILE_SET_AND_OPEN);
-#ifdef TSDB_IDX
-  SFile *pFile = helperIdxF(pHelper);
-#else
   SFile *pFile = helperHeadF(pHelper);
-#endif
   int fd = pFile->fd;
 
   if (!helperHasState(pHelper, TSDB_HELPER_IDX_LOAD)) {
@@ -1052,10 +1008,6 @@ static void tsdbResetHelperFileImpl(SRWHelper *pHelper) {
   helperLastF(pHelper)->fd = -1;
   helperNewHeadF(pHelper)->fd = -1;
   helperNewLastF(pHelper)->fd = -1;
-#ifdef TSDB_IDX
-  helperIdxF(pHelper)->fd = -1;
-  helperNewIdxF(pHelper)->fd = -1;
-#endif
 }
 
 static int tsdbInitHelperFile(SRWHelper *pHelper) {