fix(tsdb): opt perf for reading data from stt files.

source/dnode/vnode/src/tsdb/tsdbMergeTree.c

@@ -187,22 +187,7 @@ static SBlockData *loadLastBlock(SLDataIter *pIter, const char *idStr) {
   int64_t st = taosGetTimestampUs();
 
   SBlockData *pBlock = &pInfo->blockData[pInfo->currentLoadBlockIndex];
-
-  TABLEID id = {0};
-  if (pIter->pSttBlk->suid != 0) {
-    id.suid = pIter->pSttBlk->suid;
-  } else {
-    id.uid = pIter->uid;
-  }
-
-  code = tBlockDataInit(pBlock, &id, pInfo->pSchema, pInfo->colIds, pInfo->numOfCols);
-//  code = tBlockDataInit(pBlock, &id, pInfo->pSchema, &pInfo->colIds[1], pInfo->numOfCols-1);
-  if (code != TSDB_CODE_SUCCESS) {
-    goto _exit;
-  }
-
-  code = tsdbSttFileReadBlockData(pIter->pReader, pIter->pSttBlk, pBlock);
-//  code = tsdbSttFileReadBlockDataByColumn(pIter->pReader, pIter->pSttBlk, pBlock, pInfo->pSchema, &pInfo->colIds[1], pInfo->numOfCols - 1);
+  code = tsdbSttFileReadBlockDataByColumn(pIter->pReader, pIter->pSttBlk, pBlock, pInfo->pSchema, &pInfo->colIds[1], pInfo->numOfCols - 1);
   if (code != TSDB_CODE_SUCCESS) {
     goto _exit;
   }

source/dnode/vnode/src/tsdb/tsdbSttFileRW.c

@@ -194,7 +194,13 @@ int32_t tsdbSttFileReadBlockDataByColumn(SSttFileReader *reader, const SSttBlk *
   int32_t code = 0;
   int32_t lino = 0;
 
-  TABLEID tbid = {.suid = sttBlk->suid, .uid = 0};
+  TABLEID tbid = {.suid = sttBlk->suid};
+  if (tbid.suid == 0) {
+    tbid.uid = sttBlk->minUid;
+  } else {
+    tbid.uid = 0;
+  }
+
   code = tBlockDataInit(bData, &tbid, pTSchema, cids, ncid);
   TSDB_CHECK_CODE(code, lino, _exit);