diff --git a/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h b/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h
index faa63310e9ce7466ad5d36c32f30624f6e3aa347..6c5c832fe41c8a7225144ebae88836b0bf028c5b 100644
--- a/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h
+++ b/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h
@@ -35,18 +35,18 @@ typedef TARRAY2(SSttFileReader *) TSttFileReaderArray;
 typedef TARRAY2(SSttSegReader *) TSttSegReaderArray;
 
 // SSttFileReader
-int32_t tsdbSttFReaderOpen(const char *fname, const SSttFileReaderConfig *config, SSttFileReader **reader);
-int32_t tsdbSttFReaderClose(SSttFileReader **reader);
-int32_t tsdbSttFReaderGetSegReader(SSttFileReader *reader, const TSttSegReaderArray **readerArray);
+int32_t tsdbSttFileReaderOpen(const char *fname, const SSttFileReaderConfig *config, SSttFileReader **reader);
+int32_t tsdbSttFileReaderClose(SSttFileReader **reader);
+int32_t tsdbSttFileReaderGetSegReader(SSttFileReader *reader, const TSttSegReaderArray **readerArray);
 
 // SSttSegReader
-int32_t tsdbSttFReadSttBlk(SSttSegReader *reader, const TSttBlkArray **sttBlkArray);
-int32_t tsdbSttFReadDelBlk(SSttSegReader *reader, const TDelBlkArray **delBlkArray);
-int32_t tsdbSttFReadStatisBlk(SSttSegReader *reader, const TStatisBlkArray **statisBlkArray);
+int32_t tsdbSttFileReadSttBlk(SSttSegReader *reader, const TSttBlkArray **sttBlkArray);
+int32_t tsdbSttFileReadDelBlk(SSttSegReader *reader, const TDelBlkArray **delBlkArray);
+int32_t tsdbSttFileReadStatisBlk(SSttSegReader *reader, const TStatisBlkArray **statisBlkArray);
 
-int32_t tsdbSttFReadSttBlock(SSttSegReader *reader, const SSttBlk *sttBlk, SBlockData *bData);
-int32_t tsdbSttFReadDelBlock(SSttSegReader *reader, const SDelBlk *delBlk, SDelBlock *dData);
-int32_t tsdbSttFReadStatisBlock(SSttSegReader *reader, const STbStatisBlk *statisBlk, STbStatisBlock *sData);
+int32_t tsdbSttFileReadSttBlock(SSttSegReader *reader, const SSttBlk *sttBlk, SBlockData *bData);
+int32_t tsdbSttFileReadDelBlock(SSttSegReader *reader, const SDelBlk *delBlk, SDelBlock *dData);
+int32_t tsdbSttFileReadStatisBlock(SSttSegReader *reader, const STbStatisBlk *statisBlk, STbStatisBlock *sData);
 
 struct SSttFileReaderConfig {
   STsdb    *tsdb;
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbIter.c b/source/dnode/vnode/src/tsdb/dev/tsdbIter.c
index 436139083f7bf98fadfa3a08ecd7823016c2182d..c56a8f7032160d1ca10abe9ce29a254a0cf1386d 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbIter.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbIter.c
@@ -77,7 +77,7 @@ static int32_t tsdbSttIterNext(STsdbIter *iter, const TABLEID *tbid) {
         continue;
       }
 
-      int32_t code = tsdbSttFReadSttBlock(iter->stt->reader, sttBlk, iter->stt->bData);
+      int32_t code = tsdbSttFileReadSttBlock(iter->stt->reader, sttBlk, iter->stt->bData);
       if (code) return code;
 
       iter->stt->iRow = 0;
@@ -200,7 +200,7 @@ _exit:
 static int32_t tsdbSttIterOpen(STsdbIter *iter) {
   int32_t code;
 
-  code = tsdbSttFReadSttBlk(iter->stt->reader, &iter->stt->sttBlkArray);
+  code = tsdbSttFileReadSttBlk(iter->stt->reader, &iter->stt->sttBlkArray);
   if (code) return code;
 
   if (TARRAY2_SIZE(iter->stt->sttBlkArray) == 0) {
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c b/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c
index 281e7b8e0196784ce739e24969c6843f26aa78c4..3310502359a9731b38f55f052d526a5ed297decf 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c
@@ -229,7 +229,7 @@ static int32_t tsdbMergeFileSetBeginOpenReader(SMerger *merger) {
           .szPage = merger->szPage,
           .file[0] = merger->ctx->fobj->f[0],
       }};
-      code = tsdbSttFReaderOpen(merger->ctx->fobj->fname, config, &reader);
+      code = tsdbSttFileReaderOpen(merger->ctx->fobj->fname, config, &reader);
       TSDB_CHECK_CODE(code, lino, _exit);
 
       code = TARRAY2_APPEND(merger->sttReaderArr, reader);
@@ -253,7 +253,7 @@ static int32_t tsdbMergeFileSetBeginOpenIter(SMerger *merger) {
   TARRAY2_FOREACH(merger->sttReaderArr, sttReader) {
     const TSttSegReaderArray *segReaderArr;
 
-    code = tsdbSttFReaderGetSegReader(sttReader, &segReaderArr);
+    code = tsdbSttFileReaderGetSegReader(sttReader, &segReaderArr);
     TSDB_CHECK_CODE(code, lino, _exit);
 
     SSttSegReader *segReader;
@@ -450,7 +450,7 @@ static int32_t tsdbMergeFileSetEndCloseIter(SMerger *merger) {
 }
 
 static int32_t tsdbMergeFileSetEndCloseReader(SMerger *merger) {
-  TARRAY2_CLEAR(merger->sttReaderArr, tsdbSttFReaderClose);
+  TARRAY2_CLEAR(merger->sttReaderArr, tsdbSttFileReaderClose);
   return 0;
 }
 
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c b/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c
index ed094298fd6211ec5abebe10af9df02a457b7fcb..af4ba579c799705e3aa35a4bbc2025029135d04e 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c
@@ -84,7 +84,7 @@ static int32_t tsdbSttSegReaderClose(SSttSegReader **reader) {
   return 0;
 }
 
-int32_t tsdbSttFReaderOpen(const char *fname, const SSttFileReaderConfig *config, SSttFileReader **reader) {
+int32_t tsdbSttFileReaderOpen(const char *fname, const SSttFileReaderConfig *config, SSttFileReader **reader) {
   int32_t code = 0;
   int32_t lino = 0;
   int32_t vid = TD_VID(config->tsdb->pVnode);
@@ -117,12 +117,12 @@ int32_t tsdbSttFReaderOpen(const char *fname, const SSttFileReaderConfig *config
 _exit:
   if (code) {
     tsdbError("vgId:%d %s failed at line %d since %s", vid, __func__, lino, tstrerror(code));
-    tsdbSttFReaderClose(reader);
+    tsdbSttFileReaderClose(reader);
   }
   return code;
 }
 
-int32_t tsdbSttFReaderClose(SSttFileReader **reader) {
+int32_t tsdbSttFileReaderClose(SSttFileReader **reader) {
   tsdbCloseFile(&reader[0]->fd);
   TARRAY2_CLEAR_FREE(reader[0]->readerArray, tsdbSttSegReaderClose);
   taosMemoryFree(reader[0]);
@@ -130,13 +130,13 @@ int32_t tsdbSttFReaderClose(SSttFileReader **reader) {
   return 0;
 }
 
-int32_t tsdbSttFReaderGetSegReader(SSttFileReader *reader, const TSttSegReaderArray **readerArray) {
+int32_t tsdbSttFileReaderGetSegReader(SSttFileReader *reader, const TSttSegReaderArray **readerArray) {
   readerArray[0] = reader->readerArray;
   return 0;
 }
 
 // SSttFSegReader
-int32_t tsdbSttFReadStatisBlk(SSttSegReader *reader, const TStatisBlkArray **statisBlkArray) {
+int32_t tsdbSttFileReadStatisBlk(SSttSegReader *reader, const TStatisBlkArray **statisBlkArray) {
   if (!reader->ctx.statisBlkLoaded) {
     if (reader->footer->statisBlkPtr->size > 0) {
       ASSERT(reader->footer->statisBlkPtr->size % sizeof(STbStatisBlk) == 0);
@@ -161,7 +161,7 @@ int32_t tsdbSttFReadStatisBlk(SSttSegReader *reader, const TStatisBlkArray **sta
   return 0;
 }
 
-int32_t tsdbSttFReadDelBlk(SSttSegReader *reader, const TDelBlkArray **delBlkArray) {
+int32_t tsdbSttFileReadDelBlk(SSttSegReader *reader, const TDelBlkArray **delBlkArray) {
   if (!reader->ctx.delBlkLoaded) {
     if (reader->footer->delBlkPtr->size > 0) {
       ASSERT(reader->footer->delBlkPtr->size % sizeof(SDelBlk) == 0);
@@ -186,7 +186,7 @@ int32_t tsdbSttFReadDelBlk(SSttSegReader *reader, const TDelBlkArray **delBlkArr
   return 0;
 }
 
-int32_t tsdbSttFReadSttBlk(SSttSegReader *reader, const TSttBlkArray **sttBlkArray) {
+int32_t tsdbSttFileReadSttBlk(SSttSegReader *reader, const TSttBlkArray **sttBlkArray) {
   if (!reader->ctx.sttBlkLoaded) {
     if (reader->footer->sttBlkPtr->size > 0) {
       ASSERT(reader->footer->sttBlkPtr->size % sizeof(SSttBlk) == 0);
@@ -211,13 +211,13 @@ int32_t tsdbSttFReadSttBlk(SSttSegReader *reader, const TSttBlkArray **sttBlkArr
   return 0;
 }
 
-int32_t tsdbSttFReadSttBlock(SSttSegReader *reader, const SSttBlk *sttBlk, SBlockData *bData) {
+int32_t tsdbSttFileReadSttBlock(SSttSegReader *reader, const SSttBlk *sttBlk, SBlockData *bData) {
   int32_t code = 0;
   // TODO
   return code;
 }
 
-int32_t tsdbSttFReadDelBlock(SSttSegReader *reader, const SDelBlk *delBlk, SDelBlock *dData) {
+int32_t tsdbSttFileReadDelBlock(SSttSegReader *reader, const SDelBlk *delBlk, SDelBlock *dData) {
   int32_t code = 0;
   int32_t lino = 0;
   int32_t vid = TD_VID(reader->reader->config->tsdb->pVnode);
@@ -246,7 +246,7 @@ _exit:
   return code;
 }
 
-int32_t tsdbSttFReadStatisBlock(SSttSegReader *reader, const STbStatisBlk *statisBlk, STbStatisBlock *sData) {
+int32_t tsdbSttFileReadStatisBlock(SSttSegReader *reader, const STbStatisBlk *statisBlk, STbStatisBlock *sData) {
   int32_t code = 0;
   int32_t lino = 0;
   int32_t vid = TD_VID(reader->reader->config->tsdb->pVnode);