diff --git a/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h b/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h
index 7f14740f040edcb6795fcb9823654881042b165c..83468bf621a8e318e21060d0cbf854a12d1f0fca 100644
--- a/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h
+++ b/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h
@@ -74,7 +74,7 @@ struct SSttFileWriterConfig {
   STFile    file;
   SSkmInfo *skmTb;
   SSkmInfo *skmRow;
-  uint8_t **aBuf;
+  uint8_t **bufArr;
 };
 
 #ifdef __cplusplus
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c b/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c
index 05e2037e4bf888375238856edf8488724ad90269..62dc9018235bda72e9fff02c97578e076c0e92ae 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c
@@ -345,14 +345,18 @@ static int32_t tsdbSttFileDoWriteTSDataBlock(SSttFileWriter *writer) {
 
   int32_t code = 0;
   int32_t lino = 0;
-  SSttBlk sttBlk[1];
-
-  sttBlk->suid = writer->bData->suid;
-  sttBlk->minUid = writer->bData->uid ? writer->bData->uid : writer->bData->aUid[0];
-  sttBlk->maxUid = writer->bData->uid ? writer->bData->uid : writer->bData->aUid[writer->bData->nRow - 1];
-  sttBlk->minKey = sttBlk->maxKey = writer->bData->aTSKEY[0];
-  sttBlk->minVer = sttBlk->maxVer = writer->bData->aVersion[0];
-  sttBlk->nRow = writer->bData->nRow;
+
+  SSttBlk sttBlk[1] = {{
+      .suid = writer->bData->suid,
+      .minUid = writer->bData->uid ? writer->bData->uid : writer->bData->aUid[0],
+      .maxUid = writer->bData->uid ? writer->bData->uid : writer->bData->aUid[writer->bData->nRow - 1],
+      .minKey = writer->bData->aTSKEY[0],
+      .maxKey = writer->bData->aTSKEY[0],
+      .minVer = writer->bData->aVersion[0],
+      .maxVer = writer->bData->aVersion[0],
+      .nRow = writer->bData->nRow,
+  }};
+
   for (int32_t iRow = 1; iRow < writer->bData->nRow; iRow++) {
     if (sttBlk->minKey > writer->bData->aTSKEY[iRow]) sttBlk->minKey = writer->bData->aTSKEY[iRow];
     if (sttBlk->maxKey < writer->bData->aTSKEY[iRow]) sttBlk->maxKey = writer->bData->aTSKEY[iRow];
@@ -360,7 +364,7 @@ static int32_t tsdbSttFileDoWriteTSDataBlock(SSttFileWriter *writer) {
     if (sttBlk->maxVer < writer->bData->aVersion[iRow]) sttBlk->maxVer = writer->bData->aVersion[iRow];
   }
 
-  code = tCmprBlockData(writer->bData, writer->config->cmprAlg, NULL, NULL, writer->config->aBuf, writer->sizeArr);
+  code = tCmprBlockData(writer->bData, writer->config->cmprAlg, NULL, NULL, writer->config->bufArr, writer->sizeArr);
   TSDB_CHECK_CODE(code, lino, _exit);
 
   sttBlk->bInfo.offset = writer->file->size;
@@ -369,7 +373,7 @@ static int32_t tsdbSttFileDoWriteTSDataBlock(SSttFileWriter *writer) {
 
   for (int32_t i = 3; i >= 0; i--) {
     if (writer->sizeArr[i]) {
-      code = tsdbWriteFile(writer->fd, writer->file->size, writer->config->aBuf[i], writer->sizeArr[i]);
+      code = tsdbWriteFile(writer->fd, writer->file->size, writer->config->bufArr[i], writer->sizeArr[i]);
       TSDB_CHECK_CODE(code, lino, _exit);
       writer->file->size += writer->sizeArr[i];
     }
@@ -419,12 +423,12 @@ static int32_t tsdbSttFileDoWriteStatisBlock(SSttFileWriter *writer) {
 
   for (int32_t i = 0; i < STATIS_RECORD_NUM_ELEM; i++) {
     int32_t size;
-    code = tsdbCmprData((uint8_t *)TARRAY2_DATA(&writer->sData->dataArr[i]),
+    code = tsdbCmprData((uint8_t *)TARRAY2_DATA(writer->sData->dataArr + i),
                         TARRAY2_DATA_LEN(&writer->sData->dataArr[i]), TSDB_DATA_TYPE_BIGINT, TWO_STAGE_COMP,
-                        &writer->config->aBuf[0], 0, &size, &writer->config->aBuf[1]);
+                        &writer->config->bufArr[0], 0, &size, &writer->config->bufArr[1]);
     TSDB_CHECK_CODE(code, lino, _exit);
 
-    code = tsdbWriteFile(writer->fd, writer->file->size, writer->config->aBuf[0], size);
+    code = tsdbWriteFile(writer->fd, writer->file->size, writer->config->bufArr[0], size);
     TSDB_CHECK_CODE(code, lino, _exit);
 
     statisBlk->size[i] = size;
@@ -480,14 +484,14 @@ static int32_t tsdbSttFileDoWriteTombBlock(SSttFileWriter *writer) {
     int32_t size;
     code = tsdbCmprData((uint8_t *)TARRAY2_DATA(&writer->tData->dataArr[i]),
                         TARRAY2_DATA_LEN(&writer->tData->dataArr[i]), TSDB_DATA_TYPE_BIGINT, TWO_STAGE_COMP,
-                        &writer->config->aBuf[0], 0, &size, &writer->config->aBuf[1]);
+                        &writer->config->bufArr[0], 0, &size, &writer->config->bufArr[1]);
     TSDB_CHECK_CODE(code, lino, _exit);
 
-    code = tsdbWriteFile(writer->fd, writer->file->size, writer->config->aBuf[0], size);
+    code = tsdbWriteFile(writer->fd, writer->file->size, writer->config->bufArr[0], size);
     TSDB_CHECK_CODE(code, lino, _exit);
 
     tombBlk->size[i] = size;
-    tombBlk->dp[0].size += size;
+    tombBlk->dp->size += size;
     writer->file->size += size;
   }
 
@@ -569,21 +573,21 @@ _exit:
 static int32_t tsdbSttFileDoWriteFooter(SSttFileWriter *writer) {
   writer->footer->prevFooter = writer->config->file.size;
   int32_t code = tsdbWriteFile(writer->fd, writer->file->size, (const uint8_t *)writer->footer, sizeof(writer->footer));
+  if (code) return code;
   writer->file->size += sizeof(writer->footer);
-  return code;
+  return 0;
 }
 
 static int32_t tsdbSttFWriterDoOpen(SSttFileWriter *writer) {
   int32_t code = 0;
   int32_t lino = 0;
-  int32_t vid = TD_VID(writer->config->tsdb->pVnode);
 
   // set
   writer->file[0] = writer->config->file;
   writer->file->stt->nseg++;
   if (!writer->config->skmTb) writer->config->skmTb = writer->skmTb;
   if (!writer->config->skmRow) writer->config->skmRow = writer->skmRow;
-  if (!writer->config->aBuf) writer->config->aBuf = writer->bufArr;
+  if (!writer->config->bufArr) writer->config->bufArr = writer->bufArr;
 
   // open file
   int32_t flag;
@@ -606,11 +610,11 @@ static int32_t tsdbSttFWriterDoOpen(SSttFileWriter *writer) {
     writer->file->size += sizeof(hdr);
   }
 
+  writer->ctx->opened = true;
+
 _exit:
   if (code) {
-    TSDB_ERROR_LOG(vid, lino, code);
-  } else {
-    writer->ctx->opened = true;
+    TSDB_ERROR_LOG(TD_VID(writer->config->tsdb->pVnode), lino, code);
   }
   return code;
 }
@@ -623,8 +627,8 @@ static void tsdbSttFWriterDoClose(SSttFileWriter *writer) {
   }
   tDestroyTSchema(writer->skmRow->pTSchema);
   tDestroyTSchema(writer->skmTb->pTSchema);
-  tStatisBlockFree(writer->sData);
   tTombBlockFree(writer->tData);
+  tStatisBlockFree(writer->sData);
   tBlockDataDestroy(writer->bData);
   TARRAY2_FREE(writer->tombBlkArray);
   TARRAY2_FREE(writer->statisBlkArray);
@@ -783,6 +787,18 @@ int32_t tsdbSttFileWriteTSData(SSttFileWriter *writer, SRowInfo *row) {
     }};
     code = tStatisBlockPut(writer->sData, record);
     TSDB_CHECK_CODE(code, lino, _exit);
+  } else {
+    TARRAY2_LAST(writer->sData->minVer) = TMIN(TARRAY2_LAST(writer->sData->minVer), key->version);
+    TARRAY2_LAST(writer->sData->maxVer) = TMAX(TARRAY2_LAST(writer->sData->maxVer), key->version);
+    if (key->ts > TARRAY2_LAST(writer->sData->lastKey)) {
+      TARRAY2_LAST(writer->sData->count)++;
+      TARRAY2_LAST(writer->sData->lastKey) = key->ts;
+      TARRAY2_LAST(writer->sData->lastKeyVer) = key->version;
+    } else if (key->ts == TARRAY2_LAST(writer->sData->lastKey)) {
+      TARRAY2_LAST(writer->sData->lastKeyVer) = key->version;
+    } else {
+      ASSERTS(0, "timestamp should be in ascending order");
+    }
   }
 
   if (row->row.type == TSDBROW_ROW_FMT) {
@@ -799,6 +815,10 @@ int32_t tsdbSttFileWriteTSData(SSttFileWriter *writer, SRowInfo *row) {
               : writer->bData->aUid[writer->bData->nRow - 1]) == row->uid  //
       && writer->bData->aTSKEY[writer->bData->nRow - 1] == key->ts         //
   ) {
+    if (writer->bData->nRow == 1) {
+      TARRAY2_LAST(writer->sData->firstKeyVer) = key->version;
+    }
+
     code = tBlockDataUpdateRow(writer->bData, &row->row, writer->config->skmRow->pTSchema);
     TSDB_CHECK_CODE(code, lino, _exit);
   } else {
@@ -811,18 +831,6 @@ int32_t tsdbSttFileWriteTSData(SSttFileWriter *writer, SRowInfo *row) {
     TSDB_CHECK_CODE(code, lino, _exit);
   }
 
-  TARRAY2_LAST(writer->sData->minVer) = TMIN(TARRAY2_LAST(writer->sData->minVer), key->version);
-  TARRAY2_LAST(writer->sData->maxVer) = TMAX(TARRAY2_LAST(writer->sData->maxVer), key->version);
-  if (key->ts > TARRAY2_LAST(writer->sData->lastKey)) {
-    TARRAY2_LAST(writer->sData->lastKey) = key->ts;
-    TARRAY2_LAST(writer->sData->lastKeyVer) = key->version;
-    TARRAY2_LAST(writer->sData->count)++;
-  } else if (key->ts == TARRAY2_LAST(writer->sData->lastKey)) {
-    TARRAY2_LAST(writer->sData->lastKeyVer) = key->version;
-  } else {
-    ASSERTS(0, "timestamp should be in ascending order");
-  }
-
 _exit:
   if (code) {
     TSDB_ERROR_LOG(vid, lino, code);