diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index d1e02af2875c4a23f7dc57046dc36088edfeb82a..65860d4959928aba2a28a620789351a0bef670cf 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -1866,10 +1866,59 @@ typedef struct {
   uint64_t  tableUid;  // super/common table uid
   int64_t   interval;
   int64_t   sliding;
-  col_id_t* colIds;   // N.B. sorted column ids
-  uint16_t* funcIds;  // N.B. sorted sma function ids
+  col_id_t* colIds;   // sorted column ids
+  uint16_t* funcIds;  // sorted sma function ids
 } STSma;              // Time-range-wise SMA
 
+typedef struct {
+  int8_t      msgType;  // 0 create, 1 recreate
+  STSma       tSma;
+  STimeWindow window;
+} SCreateTSmaMsg;
+
+typedef struct {
+  STimeWindow window;
+  char        indexName[TSDB_INDEX_NAME_LEN + 1];
+} SDropTSmaMsg;
+
+typedef struct {
+  STimeWindow tsWindow;     // [skey, ekey]
+  uint64_t    tableUid;     // sub/common table uid
+  int32_t     numOfBlocks;  // number of sma blocks for each column, total number is numOfBlocks*numOfColId
+  int32_t     dataLen;      // total data length
+  col_id_t*   colIds;       // e.g. 2,4,9,10
+  col_id_t    numOfColIds;  // e.g. 4
+  char        data[];       // the sma blocks
+} STSmaData;
+
+// TODO: move to the final location afte schema of STSma/STSmaData defined
+static FORCE_INLINE void tdDestroySmaData(STSmaData* pSmaData) {
+  if (pSmaData) {
+    if (pSmaData->colIds) {
+      tfree(pSmaData->colIds);
+    }
+    tfree(pSmaData);
+  }
+}
+
+// RSma: Time-range-wise Rollup SMA
+// TODO: refactor when rSma grammar defined finally =>
+typedef struct {
+  int64_t  interval;
+  int32_t  retention;  // unit: day
+  uint16_t days;       // unit: day
+  int8_t   intervalUnit;
+} SSmaParams;
+// TODO: refactor when rSma grammar defined finally <=
+
+typedef struct {
+  // TODO: refactor to use the real schema =>
+  STSma   tsma;
+  float   xFilesFactor;
+  SArray* smaParams;  // SSmaParams
+  // TODO: refactor to use the real schema <=
+} SRSma;
+
 typedef struct {
   uint32_t number;
   STSma*   tSma;
@@ -1885,12 +1934,17 @@ static FORCE_INLINE void tdDestroyTSma(STSma* pSma, bool releaseSelf) {
   }
 }
 
-static FORCE_INLINE void tdDestroyTSmaWrapper(STSmaWrapper* pSW) {
-  if (pSW && pSW->tSma) {
-    for (uint32_t i = 0; i < pSW->number; ++i) {
-      tdDestroyTSma(pSW->tSma + i, false);
+static FORCE_INLINE void tdDestroyTSmaWrapper(STSmaWrapper* pSW, bool releaseSelf) {
+  if (pSW) {
+    if (pSW->tSma) {
+      for (uint32_t i = 0; i < pSW->number; ++i) {
+        tdDestroyTSma(pSW->tSma + i, false);
+      }
+      tfree(pSW->tSma);
+    }
+    if (releaseSelf) {
+      free(pSW);
     }
-    tfree(pSW->tSma);
   }
 }
 
diff --git a/include/common/tmsgdef.h b/include/common/tmsgdef.h
index cae186ba16ed7af71d888eee367f13b067b712d5..0f0c4729bc70cf4fbcfdc56d331794fe8e846158 100644
--- a/include/common/tmsgdef.h
+++ b/include/common/tmsgdef.h
@@ -184,6 +184,9 @@ enum {
   TD_DEF_MSG_TYPE(TDMT_VND_SUBSCRIBE, "vnode-subscribe", SMVSubscribeReq, SMVSubscribeRsp)
   TD_DEF_MSG_TYPE(TDMT_VND_CONSUME, "vnode-consume", SMqCVConsumeReq, SMqCVConsumeRsp)
 
+  TD_DEF_MSG_TYPE(TDMT_VND_CREATE_SMA, "vnode-create-sma", NULL, NULL)
+  TD_DEF_MSG_TYPE(TDMT_VND_CANCEL_SMA, "vnode-cancel-sma", NULL, NULL)
+  TD_DEF_MSG_TYPE(TDMT_VND_DROP_SMA, "vnode-drop-sma", NULL, NULL)
 
   // Requests handled by QNODE
   TD_NEW_MSG_SEG(TDMT_QND_MSG)
diff --git a/include/common/trow.h b/include/common/trow.h
index 49bc2f3515a3304e8421d3f6f4cdc33a901be430..ef30796d787528aeb4ec37e1811e310f2d46993a 100644
--- a/include/common/trow.h
+++ b/include/common/trow.h
@@ -118,6 +118,8 @@ typedef struct {
 } SKvRow;
 
 typedef struct {
+  /// timestamp
+  TSKEY ts;
   union {
     /// union field for encode and decode
     uint32_t info;
@@ -138,8 +140,6 @@ typedef struct {
   uint32_t len;
   /// row version
   uint64_t ver;
-  /// timestamp
-  TSKEY ts;
   /// the inline data, maybe a tuple or a k-v tuple
   char data[];
 } STSRow;
@@ -173,7 +173,7 @@ typedef struct {
 #define TD_ROW_DATA(r)     ((r)->data)
 #define TD_ROW_LEN(r)      ((r)->len)
 #define TD_ROW_KEY(r)      ((r)->ts)
-#define TD_ROW_KEY_ADDR(r) POINTER_SHIFT((r), 16)
+#define TD_ROW_KEY_ADDR(r) (r)
 
 // N.B. If without STSchema, getExtendedRowSize() is used to get the rowMaxBytes and
 // (int32_t)ceil((double)nCols/TD_VTYPE_PARTS) should be added if TD_SUPPORT_BITMAP defined.
diff --git a/source/dnode/vnode/inc/meta.h b/source/dnode/vnode/inc/meta.h
index e5ad43a4ee17e10926321ead4f628c88e367a6a4..b20be691ef2b0b21848089c9ab16aeb76da1a849 100644
--- a/source/dnode/vnode/inc/meta.h
+++ b/source/dnode/vnode/inc/meta.h
@@ -57,6 +57,7 @@ STbCfg *        metaGetTbInfoByName(SMeta *pMeta, char *tbname, tb_uid_t *uid);
 SSchemaWrapper *metaGetTableSchema(SMeta *pMeta, tb_uid_t uid, int32_t sver, bool isinline);
 STSchema *      metaGetTbTSchema(SMeta *pMeta, tb_uid_t uid, int32_t sver);
 SSmaCfg *       metaGetSmaInfoByName(SMeta *pMeta, const char *indexName);
+STSmaWrapper *  metaGetSmaInfoByUid(SMeta *pMeta, tb_uid_t uid);
 
 SMTbCursor *metaOpenTbCursor(SMeta *pMeta);
 void        metaCloseTbCursor(SMTbCursor *pTbCur);
diff --git a/source/dnode/vnode/inc/tsdb.h b/source/dnode/vnode/inc/tsdb.h
index 6bc89ddd66e919afb642bc6db47ffe269719e007..5513742c73da9aadfaa61ee82411170bb5ddf101 100644
--- a/source/dnode/vnode/inc/tsdb.h
+++ b/source/dnode/vnode/inc/tsdb.h
@@ -87,6 +87,27 @@ int    tsdbInsertData(STsdb *pTsdb, SSubmitReq *pMsg, SSubmitRsp *pRsp);
 int    tsdbPrepareCommit(STsdb *pTsdb);
 int    tsdbCommit(STsdb *pTsdb);
 
+/**
+ * @brief Insert tSma(Time-range-wise SMA) data from stream computing engine
+ * 
+ * @param pTsdb 
+ * @param param 
+ * @param pData 
+ * @return int32_t 
+ */
+int32_t tsdbInsertTSmaData(STsdb *pTsdb, STSma *param, STSmaData *pData);
+
+/**
+ * @brief Insert RSma(Time-range-wise Rollup SMA) data.
+ * 
+ * @param pTsdb 
+ * @param param 
+ * @param pData 
+ * @return int32_t 
+ */
+int32_t tsdbInsertRSmaData(STsdb *pTsdb, SRSma *param, STSmaData *pData);
+
+
 // STsdbCfg
 int  tsdbOptionsInit(STsdbCfg *);
 void tsdbOptionsClear(STsdbCfg *);
diff --git a/source/dnode/vnode/src/inc/tsdbDef.h b/source/dnode/vnode/src/inc/tsdbDef.h
index 98c0de32a851fdfc1d50366f77dfaf8d16303f61..96a76ea7d4a0c7bd24b587afa7f98129f0855ac4 100644
--- a/source/dnode/vnode/src/inc/tsdbDef.h
+++ b/source/dnode/vnode/src/inc/tsdbDef.h
@@ -35,6 +35,7 @@
 #include "tsdbMemory.h"
 #include "tsdbOptions.h"
 #include "tsdbReadImpl.h"
+#include "tsdbSma.h"
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/source/dnode/vnode/src/inc/tsdbFS.h b/source/dnode/vnode/src/inc/tsdbFS.h
index 71f35a9eca28845cca84baa38f21521a28086fd6..641255a294f36da5d8b437662066d7b99ff57f66 100644
--- a/source/dnode/vnode/src/inc/tsdbFS.h
+++ b/source/dnode/vnode/src/inc/tsdbFS.h
@@ -42,6 +42,7 @@ typedef struct {
 typedef struct {
   STsdbFSMeta meta;  // FS meta
   SArray *    df;    // data file array
+  SArray *    smaf;  // sma data file array
 } SFSStatus;
 
 typedef struct {
diff --git a/source/dnode/vnode/src/inc/tsdbSma.h b/source/dnode/vnode/src/inc/tsdbSma.h
new file mode 100644
index 0000000000000000000000000000000000000000..2a326eece80131c2c9fcbeac58a2aaccdd3ffebf
--- /dev/null
+++ b/source/dnode/vnode/src/inc/tsdbSma.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _TD_TSDB_SMA_H_
+#define _TD_TSDB_SMA_H_
+
+// insert/update interface
+int32_t tsdbInsertTSmaDataImpl(STsdb *pTsdb, STSma *param, STSmaData *pData);
+int32_t tsdbInsertRSmaDataImpl(STsdb *pTsdb, SRSma *param, STSmaData *pData);
+
+
+// query interface
+// TODO: This is the basic params, and should wrap the params to a queryHandle.
+int32_t tsdbGetTSmaDataImpl(STsdb *pTsdb, STSma *param, STSmaData *pData, STimeWindow *queryWin, int32_t nMaxResult);
+
+// management interface
+int32_t tsdbGetTSmaStatus(STsdb *pTsdb, STSma *param, void* result);
+int32_t tsdbRemoveTSmaData(STsdb *pTsdb, STSma *param, STimeWindow *pWin);
+
+
+
+
+// internal func
+static FORCE_INLINE int32_t tsdbEncodeTSmaKey(uint64_t tableUid, col_id_t colId, TSKEY tsKey, void **pData) {
+  int32_t len = 0;
+  len += taosEncodeFixedU64(pData, tableUid);
+  len += taosEncodeFixedU16(pData, colId);
+  len += taosEncodeFixedI64(pData, tsKey);
+  return len;
+}
+
+#if 0
+
+typedef struct {
+  int   minFid;
+  int   midFid;
+  int   maxFid;
+  TSKEY minKey;
+} SRtn;
+
+typedef struct {
+  uint64_t uid;
+  int64_t  offset;
+  int64_t  size;
+} SKVRecord;
+
+void tsdbGetRtnSnap(STsdb *pRepo, SRtn *pRtn);
+
+static FORCE_INLINE int TSDB_KEY_FID(TSKEY key, int32_t days, int8_t precision) {
+  if (key < 0) {
+    return (int)((key + 1) / tsTickPerDay[precision] / days - 1);
+  } else {
+    return (int)((key / tsTickPerDay[precision] / days));
+  }
+}
+
+static FORCE_INLINE int tsdbGetFidLevel(int fid, SRtn *pRtn) {
+  if (fid >= pRtn->maxFid) {
+    return 0;
+  } else if (fid >= pRtn->midFid) {
+    return 1;
+  } else if (fid >= pRtn->minFid) {
+    return 2;
+  } else {
+    return -1;
+  }
+}
+
+#define TSDB_DEFAULT_BLOCK_ROWS(maxRows) ((maxRows)*4 / 5)
+
+int   tsdbEncodeKVRecord(void **buf, SKVRecord *pRecord);
+void *tsdbDecodeKVRecord(void *buf, SKVRecord *pRecord);
+void *tsdbCommitData(STsdbRepo *pRepo);
+int   tsdbApplyRtnOnFSet(STsdbRepo *pRepo, SDFileSet *pSet, SRtn *pRtn);
+int tsdbWriteBlockInfoImpl(SDFile *pHeadf, STable *pTable, SArray *pSupA, SArray *pSubA, void **ppBuf, SBlockIdx *pIdx);
+int tsdbWriteBlockIdx(SDFile *pHeadf, SArray *pIdxA, void **ppBuf);
+int tsdbWriteBlockImpl(STsdbRepo *pRepo, STable *pTable, SDFile *pDFile, SDataCols *pDataCols, SBlock *pBlock,
+                       bool isLast, bool isSuper, void **ppBuf, void **ppCBuf);
+int   tsdbApplyRtn(STsdbRepo *pRepo);
+
+#endif
+
+#endif /* _TD_TSDB_SMA_H_ */
\ No newline at end of file
diff --git a/source/dnode/vnode/src/meta/metaBDBImpl.c b/source/dnode/vnode/src/meta/metaBDBImpl.c
index c31f28d98356d1c01d4a2d8abb8175ca40eea49c..03a29376796417e8c01cc92292cc6b59c0b32585 100644
--- a/source/dnode/vnode/src/meta/metaBDBImpl.c
+++ b/source/dnode/vnode/src/meta/metaBDBImpl.c
@@ -833,6 +833,7 @@ SMSmaCursor *metaOpenSmaCursor(SMeta *pMeta, tb_uid_t uid) {
   }
 
   pCur->uid = uid;
+  // TODO: lock?
   ret = pDB->pCtbIdx->cursor(pDB->pSmaIdx, NULL, &(pCur->pCur), 0);
   if (ret != 0) {
     free(pCur);
@@ -852,25 +853,68 @@ void metaCloseSmaCurosr(SMSmaCursor *pCur) {
   }
 }
 
-const char* metaSmaCursorNext(SMSmaCursor *pCur) {
-  DBT    skey = {0};
-  DBT    pkey = {0};
-  DBT    pval = {0};
-  void  *pBuf;
+const char *metaSmaCursorNext(SMSmaCursor *pCur) {
+  DBT skey = {0};
+  DBT pkey = {0};
+  DBT pval = {0};
 
   // Set key
   skey.data = &(pCur->uid);
   skey.size = sizeof(pCur->uid);
-
+  // TODO: lock?
   if (pCur->pCur->pget(pCur->pCur, &skey, &pkey, &pval, DB_NEXT) == 0) {
-    const char* indexName = (const char *)pkey.data;
+    const char *indexName = (const char *)pkey.data;
     assert(indexName != NULL);
     return indexName;
   } else {
-    return 0;
+    return NULL;
   }
 }
 
+STSmaWrapper *metaGetSmaInfoByUid(SMeta *pMeta, tb_uid_t uid) {
+  STSmaWrapper *pSW = NULL;
+
+  pSW = calloc(sizeof(*pSW), 1);
+  if (pSW == NULL) {
+    return NULL;
+  }
+
+  SMSmaCursor *pCur = metaOpenSmaCursor(pMeta, uid);
+  if (pCur == NULL) {
+    free(pSW);
+    return NULL;
+  }
+
+  DBT   skey = {.data = &(pCur->uid)};
+  DBT   pval = {.size = sizeof(pCur->uid)};
+  void *pBuf = NULL;
+
+  while (true) {
+    // TODO: lock?
+    if (pCur->pCur->pget(pCur->pCur, &skey, NULL, &pval, DB_NEXT) == 0) {
+      ++pSW->number;
+      STSma *tptr = (STSma *)realloc(pSW->tSma, pSW->number * sizeof(STSma));
+      if (tptr == NULL) {
+        metaCloseSmaCurosr(pCur);
+        tdDestroyTSmaWrapper(pSW, true);
+        return NULL;
+      }
+      pSW->tSma = tptr;
+      pBuf = pval.data;
+      if (tDecodeTSma(pBuf, pSW->tSma + pSW->number - 1) == NULL) {
+        metaCloseSmaCurosr(pCur);
+        tdDestroyTSmaWrapper(pSW, true);
+        return NULL;
+      }
+      continue;
+    }
+    break;
+  }
+
+  metaCloseSmaCurosr(pCur);
+
+  return pSW;
+}
 
 static void metaDBWLock(SMetaDB *pDB) {
 #if IMPL_WITH_LOCK
diff --git a/source/dnode/vnode/src/tsdb/tsdbSma.c b/source/dnode/vnode/src/tsdb/tsdbSma.c
new file mode 100644
index 0000000000000000000000000000000000000000..b465dc3a88d2e56f716cf595a391c0f0985372c4
--- /dev/null
+++ b/source/dnode/vnode/src/tsdb/tsdbSma.c
@@ -0,0 +1,550 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "tsdbDef.h"
+
+#define SMA_STORAGE_TSDB_DAYS   30
+#define SMA_STORAGE_SPLIT_HOURS 24
+#define SMA_KEY_LEN             18  // tableUid_colId_TSKEY 8+2+8
+
+#define SMA_STORE_SINGLE_BLOCKS  // store SMA data by single block or multiple blocks
+
+typedef enum {
+  SMA_STORAGE_LEVEL_TSDB = 0,     // store TSma in dir  e.g. vnode${N}/tsdb/.tsma
+  SMA_STORAGE_LEVEL_DFILESET = 1  // store TSma in file e.g. vnode${N}/tsdb/v2f1900.tsma.${sma_index_name}
+} ESmaStorageLevel;
+
+typedef struct {
+  STsdb * pTsdb;
+  char *  pDFile;     // TODO: use the real DFile type, not char*
+  int32_t interval;   // interval with the precision of DB
+  int32_t blockSize;  // size of SMA block item
+  // TODO
+} STSmaWriteH;
+
+typedef struct {
+  int32_t iter;
+} SmaFsIter;
+typedef struct {
+  STsdb *   pTsdb;
+  char *    pDFile;     // TODO: use the real DFile type, not char*
+  int32_t   interval;   // interval with the precision of DB
+  int32_t   blockSize;  // size of SMA block item
+  int8_t    storageLevel;
+  int8_t    days;
+  SmaFsIter smaFsIter;
+  // TODO
+} STSmaReadH;
+
+// declaration of static functions
+static int32_t tsdbInitTSmaWriteH(STSmaWriteH *pSmaH, STsdb *pTsdb, STSma *param, STSmaData *pData);
+static int32_t tsdbInitTSmaReadH(STSmaReadH *pSmaH, STsdb *pTsdb, STSma *param, STSmaData *pData);
+static int32_t tsdbJudgeStorageLevel(int64_t interval, int8_t intervalUnit);
+static int32_t tsdbInsertTSmaDataSection(STSmaWriteH *pSmaH, STSmaData *pData, int32_t sectionDataLen, int32_t nBlocks);
+static int32_t tsdbInsertTSmaBlocks(void *bTree, const char *smaKey, const char *pData, int32_t dataLen);
+static int32_t tsdbTSmaDataSplit(STSmaWriteH *pSmaH, STSma *param, STSmaData *pData, int32_t days, int32_t nOffset,
+                                 int32_t fid, int32_t *nSmaBlocks);
+static int64_t tsdbGetIntervalByPrecision(int64_t interval, uint8_t intervalUnit, int8_t precision);
+static int32_t tsdbSetTSmaDataFile(STSmaWriteH *pSmaH, STSma *param, STSmaData *pData, int32_t storageLevel,
+                                   int32_t fid);
+
+static int32_t tsdbInitTSmaReadH(STSmaReadH *pSmaH, STsdb *pTsdb, STSma *param, STSmaData *pData);
+static int32_t tsdbInitTSmaFile(STSmaReadH *pReadH, STSma *param, STimeWindow *queryWin);
+static bool    tsdbSetAndOpenTSmaFile(STSmaReadH *pReadH, STSma *param, STimeWindow *queryWin);
+
+/**
+ * @brief Judge the tSma storage level
+ *
+ * @param interval
+ * @param intervalUnit
+ * @return int32_t
+ */
+static int32_t tsdbJudgeStorageLevel(int64_t interval, int8_t intervalUnit) {
+  // TODO: configurable for SMA_STORAGE_SPLIT_HOURS?
+  switch (intervalUnit) {
+    case TD_TIME_UNIT_HOUR:
+      if (interval < SMA_STORAGE_SPLIT_HOURS) {
+        return SMA_STORAGE_LEVEL_DFILESET;
+      }
+      break;
+    case TD_TIME_UNIT_MINUTE:
+      if (interval < 60 * SMA_STORAGE_SPLIT_HOURS) {
+        return SMA_STORAGE_LEVEL_DFILESET;
+      }
+      break;
+    case TD_TIME_UNIT_SEC:
+      if (interval < 3600 * SMA_STORAGE_SPLIT_HOURS) {
+        return SMA_STORAGE_LEVEL_DFILESET;
+      }
+      break;
+    case TD_TIME_UNIT_MILLISEC:
+      if (interval < 3600 * 1e3 * SMA_STORAGE_SPLIT_HOURS) {
+        return SMA_STORAGE_LEVEL_DFILESET;
+      }
+      break;
+    case TD_TIME_UNIT_MICROSEC:
+      if (interval < 3600 * 1e6 * SMA_STORAGE_SPLIT_HOURS) {
+        return SMA_STORAGE_LEVEL_DFILESET;
+      }
+      break;
+    case TD_TIME_UNIT_NANOSEC:
+      if (interval < 3600 * 1e9 * SMA_STORAGE_SPLIT_HOURS) {
+        return SMA_STORAGE_LEVEL_DFILESET;
+      }
+      break;
+    default:
+      break;
+  }
+  return SMA_STORAGE_LEVEL_TSDB;
+}
+
+/**
+ * @brief Insert TSma data blocks to B+Tree
+ *
+ * @param bTree
+ * @param smaKey
+ * @param pData
+ * @param dataLen
+ * @return int32_t
+ */
+static int32_t tsdbInsertTSmaBlocks(void *bTree, const char *smaKey, const char *pData, int32_t dataLen) {
+  // TODO: insert sma data blocks into B+Tree
+  printf("insert sma data blocks into B+Tree: smaKey %" PRIx64 "-%" PRIu16 "-%" PRIx64 ", dataLen %d\n",
+         *(uint64_t *)smaKey, *(uint16_t *)POINTER_SHIFT(smaKey, 8), *(int64_t *)POINTER_SHIFT(smaKey, 10), dataLen);
+  return TSDB_CODE_SUCCESS;
+}
+
+static int64_t tsdbGetIntervalByPrecision(int64_t interval, uint8_t intervalUnit, int8_t precision) {
+  if (intervalUnit < TD_TIME_UNIT_MILLISEC) {
+    switch (intervalUnit) {
+      case TD_TIME_UNIT_YEAR:
+      case TD_TIME_UNIT_SEASON:
+      case TD_TIME_UNIT_MONTH:
+      case TD_TIME_UNIT_WEEK:
+        // illegal time unit
+        tsdbError("invalid interval unit: %d\n", intervalUnit);
+        TASSERT(0);
+        break;
+      case TD_TIME_UNIT_DAY:  // the interval for tSma calculation must <= day
+        interval *= 86400 * 1e3;
+        break;
+      case TD_TIME_UNIT_HOUR:
+        interval *= 3600 * 1e3;
+        break;
+      case TD_TIME_UNIT_MINUTE:
+        interval *= 60 * 1e3;
+        break;
+      case TD_TIME_UNIT_SEC:
+        interval *= 1e3;
+        break;
+      default:
+        break;
+    }
+  }
+
+  switch (intervalUnit) {
+    case TD_TIME_UNIT_MILLISEC:
+      if (TSDB_TIME_PRECISION_MILLI == precision) {
+        return interval;
+      } else if (TSDB_TIME_PRECISION_MICRO == precision) {
+        return interval * 1e3;
+      } else {  //  nano second
+        return interval * 1e6;
+      }
+      break;
+    case TD_TIME_UNIT_MICROSEC:
+      if (TSDB_TIME_PRECISION_MILLI == precision) {
+        return interval / 1e3;
+      } else if (TSDB_TIME_PRECISION_MICRO == precision) {
+        return interval;
+      } else {  //  nano second
+        return interval * 1e3;
+      }
+      break;
+    case TD_TIME_UNIT_NANOSEC:
+      if (TSDB_TIME_PRECISION_MILLI == precision) {
+        return interval / 1e6;
+      } else if (TSDB_TIME_PRECISION_MICRO == precision) {
+        return interval / 1e3;
+      } else {  // nano second
+        return interval;
+      }
+      break;
+    default:
+      if (TSDB_TIME_PRECISION_MILLI == precision) {
+        return interval * 1e3;
+      } else if (TSDB_TIME_PRECISION_MICRO == precision) {
+        return interval * 1e6;
+      } else {  // nano second
+        return interval * 1e9;
+      }
+      break;
+  }
+  return interval;
+}
+
+/**
+ * @brief Split the TSma data blocks into expected size and insert into B+Tree.
+ *
+ * @param pSmaH
+ * @param pData
+ * @param nOffset The nOffset of blocks since fid changes.
+ * @param nBlocks The nBlocks with the same fid since nOffset.
+ * @return int32_t
+ */
+static int32_t tsdbInsertTSmaDataSection(STSmaWriteH *pSmaH, STSmaData *pData, int32_t nOffset, int32_t nBlocks) {
+  STsdb *pTsdb = pSmaH->pTsdb;
+
+  TASSERT(pData->colIds != NULL);
+
+  tsdbDebug("tsdbInsertTSmaDataSection: nOffset %d, nBlocks %d", nOffset, nBlocks);
+  printf("tsdbInsertTSmaDataSection: nOffset %d, nBlocks %d\n", nOffset, nBlocks);
+
+  int32_t colDataLen = pData->dataLen / pData->numOfColIds;
+  int32_t sectionDataLen = pSmaH->blockSize * nBlocks;
+
+  for (col_id_t i = 0; i < pData->numOfColIds; ++i) {
+    // param: pointer of B+Tree, key, value, dataLen
+    void *bTree = pSmaH->pDFile;
+#ifndef SMA_STORE_SINGLE_BLOCKS
+    // save tSma data blocks as a whole
+    char  smaKey[SMA_KEY_LEN] = {0};
+    void *pSmaKey = &smaKey;
+    tsdbEncodeTSmaKey(pData->tableUid, *(pData->colIds + i), pData->tsWindow.skey + nOffset * pSmaH->interval,
+                      (void **)&pSmaKey);
+    if (tsdbInsertTSmaBlocks(bTree, smaKey, pData->data + i * colDataLen + nOffset * pSmaH->blockSize, sectionDataLen) <
+        0) {
+      tsdbWarn("vgId:%d insert tSma blocks failed since %s", REPO_ID(pTsdb), tstrerror(terrno));
+    }
+#else
+    // save tSma data blocks separately
+    for (int32_t n = 0; n < nBlocks; ++n) {
+      char  smaKey[SMA_KEY_LEN] = {0};
+      void *pSmaKey = &smaKey;
+      tsdbEncodeTSmaKey(pData->tableUid, *(pData->colIds + i), pData->tsWindow.skey + (nOffset + n) * pSmaH->interval,
+                        (void **)&pSmaKey);
+      if (tsdbInsertTSmaBlocks(bTree, smaKey, pData->data + i * colDataLen + (nOffset + n) * pSmaH->blockSize,
+                               pSmaH->blockSize) < 0) {
+        tsdbWarn("vgId:%d insert tSma blocks failed since %s", REPO_ID(pTsdb), tstrerror(terrno));
+      }
+    }
+#endif
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t tsdbInitTSmaWriteH(STSmaWriteH *pSmaH, STsdb *pTsdb, STSma *param, STSmaData *pData) {
+  pSmaH->pTsdb = pTsdb;
+  pSmaH->interval = tsdbGetIntervalByPrecision(param->interval, param->intervalUnit, REPO_CFG(pTsdb)->precision);
+  pSmaH->blockSize = param->numOfFuncIds * sizeof(int64_t);
+}
+
+static int32_t tsdbSetTSmaDataFile(STSmaWriteH *pSmaH, STSma *param, STSmaData *pData, int32_t storageLevel,
+                                   int32_t fid) {
+  // TODO
+  pSmaH->pDFile = "tSma_interval_file_name";
+
+  return TSDB_CODE_SUCCESS;
+} /**
+   * @brief Split the sma data blocks by fid.
+   *
+   * @param pSmaH
+   * @param param
+   * @param pData
+   * @param nOffset
+   * @param fid
+   * @param nSmaBlocks
+   * @return int32_t
+   */
+static int32_t tsdbTSmaDataSplit(STSmaWriteH *pSmaH, STSma *param, STSmaData *pData, int32_t days, int32_t nOffset,
+                                 int32_t fid, int32_t *nSmaBlocks) {
+  STsdbCfg *pCfg = REPO_CFG(pSmaH->pTsdb);
+
+  // TODO: use binary search
+  for (int32_t n = nOffset + 1; n < pData->numOfBlocks; ++n) {
+    // TODO: The tsWindow.skey should use the precision of DB.
+    int32_t tFid = (int32_t)(TSDB_KEY_FID(pData->tsWindow.skey + pSmaH->interval * n, days, pCfg->precision));
+    if (tFid > fid) {
+      *nSmaBlocks = n - nOffset;
+      break;
+    }
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
+/**
+ * @brief Insert/Update Time-range-wise SMA data.
+ *  - If interval < SMA_STORAGE_SPLIT_HOURS(e.g. 24), save the SMA data as a part of DFileSet to e.g.
+ * v3f1900.tsma.${sma_index_name}. The days is the same with that for TS data files.
+ *  - If interval >= SMA_STORAGE_SPLIT_HOURS, save the SMA data to e.g. vnode3/tsma/v3f632.tsma.${sma_index_name}. The
+ * days is 30 times of the interval, and the minimum days is SMA_STORAGE_TSDB_DAYS(30d).
+ *  - The destination file of one data block for some interval is determined by its start TS key.
+ *
+ * @param pTsdb
+ * @param param
+ * @param pData
+ * @return int32_t
+ */
+int32_t tsdbInsertTSmaDataImpl(STsdb *pTsdb, STSma *param, STSmaData *pData) {
+  STsdbCfg *  pCfg = REPO_CFG(pTsdb);
+  STSmaData * curData = pData;
+  STSmaWriteH tSmaH = {0};
+
+  tsdbInitTSmaWriteH(&tSmaH, pTsdb, param, pData);
+
+  if (pData->numOfBlocks <= 0 || pData->numOfColIds <= 0 || pData->dataLen <= 0) {
+    TASSERT(0);
+    terrno = TSDB_CODE_INVALID_PARA;
+    return terrno;
+  }
+
+  // Step 1: Judge the storage level
+  int32_t storageLevel = tsdbJudgeStorageLevel(param->interval, param->intervalUnit);
+  int32_t daysPerFile = storageLevel == SMA_STORAGE_LEVEL_TSDB ? SMA_STORAGE_TSDB_DAYS : pCfg->daysPerFile;
+
+  // Step 2: Set the DFile for storage of SMA index, and iterate/split the TSma data and store to B+Tree index file
+  //         - Set and open the DFile or the B+Tree file
+
+  int32_t minFid = (int32_t)(TSDB_KEY_FID(pData->tsWindow.skey, daysPerFile, pCfg->precision));
+  int32_t maxFid = (int32_t)(TSDB_KEY_FID(pData->tsWindow.ekey, daysPerFile, pCfg->precision));
+
+  if (minFid == maxFid) {
+    // Save all the TSma data to one file
+    // TODO: tsdbStartTSmaCommit();
+    tsdbSetTSmaDataFile(&tSmaH, param, pData, storageLevel, minFid);
+    tsdbInsertTSmaDataSection(&tSmaH, pData, 0, pData->numOfBlocks);
+    // TODO:tsdbEndTSmaCommit();
+  } else if (minFid < maxFid) {
+    // Split the TSma data and save to multiple files. As there is limit for the span, it can't span more than 2 files
+    // actually.
+    // TODO: tsdbStartTSmaCommit();
+    int32_t tFid = minFid;
+    int32_t nOffset = 0;
+    int32_t nSmaBlocks = 0;
+    do {
+      tsdbTSmaDataSplit(&tSmaH, param, pData, daysPerFile, nOffset, tFid, &nSmaBlocks);
+      tsdbSetTSmaDataFile(&tSmaH, param, pData, storageLevel, tFid);
+      if (tsdbInsertTSmaDataSection(&tSmaH, pData, nOffset, nSmaBlocks) < 0) {
+        return terrno;
+      }
+
+      ++tFid;
+      nOffset += nSmaBlocks;
+
+      if (tFid == maxFid) {
+        tsdbSetTSmaDataFile(&tSmaH, param, pData, storageLevel, tFid);
+        tsdbInsertTSmaDataSection(&tSmaH, pData, nOffset, pData->numOfBlocks - nOffset);
+        break;
+      }
+    } while (true);
+
+    // TODO:tsdbEndTSmaCommit();
+  } else {
+    terrno = TSDB_CODE_INVALID_PARA;
+    return terrno;
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t tsdbSetRSmaDataFile(STSmaWriteH *pSmaH, SRSma *param, STSmaData *pData, int32_t fid) {
+  // TODO
+  pSmaH->pDFile = "rSma_interval_file_name";
+
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t tsdbInsertRSmaDataImpl(STsdb *pTsdb, SRSma *param, STSmaData *pData) {
+  STsdbCfg *  pCfg = REPO_CFG(pTsdb);
+  STSma *     tParam = &param->tsma;
+  STSmaData * curData = pData;
+  STSmaWriteH tSmaH = {0};
+
+  tsdbInitTSmaWriteH(&tSmaH, pTsdb, tParam, pData);
+
+  int32_t nSmaBlocks = pData->numOfBlocks;
+  int32_t colDataLen = pData->dataLen / nSmaBlocks;
+
+  // Step 2.2: Storage of SMA_STORAGE_LEVEL_DFILESET
+  // TODO: Use the daysPerFile for rSma data, not for TS data.
+  // TODO: The lifecycle of rSma data should be processed like the TS data files.
+  int32_t minFid = (int32_t)(TSDB_KEY_FID(pData->tsWindow.skey, pCfg->daysPerFile, pCfg->precision));
+  int32_t maxFid = (int32_t)(TSDB_KEY_FID(pData->tsWindow.ekey, pCfg->daysPerFile, pCfg->precision));
+
+  if (minFid == maxFid) {
+    // Save all the TSma data to one file
+    tsdbSetRSmaDataFile(&tSmaH, param, pData, minFid);
+    // TODO: tsdbStartTSmaCommit();
+    tsdbInsertTSmaDataSection(&tSmaH, pData, colDataLen, nSmaBlocks);
+    // TODO:tsdbEndTSmaCommit();
+  } else if (minFid < maxFid) {
+    // Split the TSma data and save to multiple files. As there is limit for the span, it can't span more than 2 files
+    // actually.
+    // TODO: tsdbStartTSmaCommit();
+    int32_t tmpFid = 0;
+    int32_t step = 0;
+    for (int32_t n = 0; n < pData->numOfBlocks; ++n) {
+    }
+    tsdbInsertTSmaDataSection(&tSmaH, pData, colDataLen, nSmaBlocks);
+    // TODO:tsdbEndTSmaCommit();
+  } else {
+    TASSERT(0);
+    return TSDB_CODE_INVALID_PARA;
+  }
+  // Step 4: finish
+  return TSDB_CODE_SUCCESS;
+}
+
+/**
+ * @brief Init of tSma ReadH
+ *
+ * @param pSmaH
+ * @param pTsdb
+ * @param param
+ * @param pData
+ * @return int32_t
+ */
+static int32_t tsdbInitTSmaReadH(STSmaReadH *pSmaH, STsdb *pTsdb, STSma *param, STSmaData *pData) {
+  pSmaH->pTsdb = pTsdb;
+  pSmaH->interval = tsdbGetIntervalByPrecision(param->interval, param->intervalUnit, REPO_CFG(pTsdb)->precision);
+  pSmaH->blockSize = param->numOfFuncIds * sizeof(int64_t);
+}
+
+/**
+ * @brief Init of tSma FS
+ *
+ * @param pReadH
+ * @param param
+ * @param queryWin
+ * @return int32_t
+ */
+static int32_t tsdbInitTSmaFile(STSmaReadH *pReadH, STSma *param, STimeWindow *queryWin) {
+  int32_t storageLevel = tsdbJudgeStorageLevel(param->interval, param->intervalUnit);
+  int32_t daysPerFile =
+      storageLevel == SMA_STORAGE_LEVEL_TSDB ? SMA_STORAGE_TSDB_DAYS : REPO_CFG(pReadH->pTsdb)->daysPerFile;
+  pReadH->storageLevel = storageLevel;
+  pReadH->days = daysPerFile;
+  pReadH->smaFsIter.iter = 0;
+}
+
+/**
+ * @brief Set and open tSma file if it has key locates in queryWin.
+ *
+ * @param pReadH
+ * @param param
+ * @param queryWin
+ * @return true
+ * @return false
+ */
+static bool tsdbSetAndOpenTSmaFile(STSmaReadH *pReadH, STSma *param, STimeWindow *queryWin) {
+  SArray *smaFs = pReadH->pTsdb->fs->cstatus->smaf;
+  int32_t nSmaFs = taosArrayGetSize(smaFs);
+
+  pReadH->pDFile = NULL;
+
+  while (pReadH->smaFsIter.iter < nSmaFs) {
+    void *pSmaFile = taosArrayGet(smaFs, pReadH->smaFsIter.iter);
+    if (pSmaFile) {  // match(indexName, queryWindow)
+      // TODO: select the file by index_name ...
+      pReadH->pDFile = pSmaFile;
+      ++pReadH->smaFsIter.iter;
+      break;
+    }
+    ++pReadH->smaFsIter.iter;
+  }
+
+  if (pReadH->pDFile != NULL) {
+    tsdbDebug("vg%d: smaFile %s matched", REPO_ID(pReadH->pTsdb), "[pSmaFile dir]");
+    return true;
+  }
+
+  return false;
+}
+
+/**
+ * @brief Return the data between queryWin and fill the pData.
+ *
+ * @param pTsdb
+ * @param param
+ * @param pData
+ * @param queryWin
+ * @param nMaxResult The query invoker should control the nMaxResult need to return to avoid OOM.
+ * @return int32_t
+ */
+int32_t tsdbGetTSmaDataImpl(STsdb *pTsdb, STSma *param, STSmaData *pData, STimeWindow *queryWin, int32_t nMaxResult) {
+  STSmaReadH tReadH = {0};
+  tsdbInitTSmaReadH(&tReadH, pTsdb, param, pData);
+
+  tsdbInitTSmaFile(&tReadH, param, queryWin);
+
+  int32_t nResult = 0;
+  int64_t lastKey = 0;
+
+  while (true) {
+    if (nResult >= nMaxResult) {
+      break;
+    }
+
+    // set and open the file according to the STSma param
+    if (tsdbSetAndOpenTSmaFile(&tReadH, param, queryWin)) {
+      char bTree[100] = "\0";
+      while (strncmp(bTree, "has more nodes", 100) == 0) {
+        if (nResult >= nMaxResult) {
+          break;
+        }
+        // tsdbGetDataFromBTree(bTree, queryWin, lastKey)
+        // fill the pData
+        ++nResult;
+      }
+    }
+  }
+
+  // read data from file and fill the result
+  return TSDB_CODE_SUCCESS;
+}
+
+/**
+ * @brief Get the start TS key of the last data block of one interval/sliding.
+ *
+ * @param pTsdb
+ * @param param
+ * @param result
+ * @return int32_t
+ *         1) Return 0 and fill the result if the check procedure is normal;
+ *         2) Return -1 if error occurs during the check procedure.
+ */
+int32_t tsdbGetTSmaStatus(STsdb *pTsdb, STSma *param, void *result) {
+  const char *procedure = "";
+  if (strncmp(procedure, "get the start TS key of the last data block", 100) != 0) {
+    return -1;
+  }
+  // fill the result
+  return TSDB_CODE_SUCCESS;
+}
+
+/**
+ * @brief Remove the tSma data files related to param between pWin.
+ *
+ * @param pTsdb
+ * @param param
+ * @param pWin
+ * @return int32_t
+ */
+int32_t tsdbRemoveTSmaData(STsdb *pTsdb, STSma *param, STimeWindow *pWin) {
+  // for ("tSmaFiles of param-interval-sliding between pWin") {
+  //   // remove the tSmaFile
+  // }
+  return TSDB_CODE_SUCCESS;
+}
\ No newline at end of file
diff --git a/source/dnode/vnode/src/tsdb/tsdbWrite.c b/source/dnode/vnode/src/tsdb/tsdbWrite.c
index 78067f8f83bc345057430caa77b7880aa8147d0c..ba8eea809ed05a74c7cd1bff04993b666cb58f7d 100644
--- a/source/dnode/vnode/src/tsdb/tsdbWrite.c
+++ b/source/dnode/vnode/src/tsdb/tsdbWrite.c
@@ -15,6 +15,14 @@
 
 #include "tsdbDef.h"
 
+/**
+ * @brief insert TS data
+ *
+ * @param pTsdb
+ * @param pMsg
+ * @param pRsp
+ * @return int
+ */
 int tsdbInsertData(STsdb *pTsdb, SSubmitReq *pMsg, SSubmitRsp *pRsp) {
   // Check if mem is there. If not, create one.
   if (pTsdb->mem == NULL) {
@@ -24,4 +32,37 @@ int tsdbInsertData(STsdb *pTsdb, SSubmitReq *pMsg, SSubmitRsp *pRsp) {
     }
   }
   return tsdbMemTableInsert(pTsdb, pTsdb->mem, pMsg, NULL);
+}
+
+/**
+ * @brief Insert/Update tSma(Time-range-wise SMA) data from stream computing engine
+ * 
+ * @param pTsdb 
+ * @param param 
+ * @param pData 
+ * @return int32_t 
+ * TODO: Who is responsible for resource allocate and release?
+ */
+int32_t tsdbInsertTSmaData(STsdb *pTsdb, STSma *param, STSmaData *pData) {
+  int32_t code = TSDB_CODE_SUCCESS;
+  if ((code = tsdbInsertTSmaDataImpl(pTsdb, param, pData)) < 0) {
+    tsdbWarn("vgId:%d insert tSma data failed since %s", REPO_ID(pTsdb), tstrerror(terrno));
+  }
+  return code;
+}
+
+/**
+ * @brief Insert Time-range-wise Rollup Sma(RSma) data
+ *
+ * @param pTsdb
+ * @param param
+ * @param pData
+ * @return int32_t
+ */
+int32_t tsdbInsertRSmaData(STsdb *pTsdb, SRSma *param, STSmaData *pData) {
+  int32_t code = TSDB_CODE_SUCCESS;
+  if ((code = tsdbInsertRSmaDataImpl(pTsdb, param, pData)) < 0) {
+    tsdbWarn("vgId:%d insert rSma data failed since %s", REPO_ID(pTsdb), tstrerror(terrno));
+  }
+  return code;
 }
\ No newline at end of file
diff --git a/source/dnode/vnode/src/vnd/vnodeWrite.c b/source/dnode/vnode/src/vnd/vnodeWrite.c
index a2616307ffcc26e3947f2bf2c3660195dc221056..f3f21dc9c05d3001a244447e55a0064a26005d6c 100644
--- a/source/dnode/vnode/src/vnd/vnodeWrite.c
+++ b/source/dnode/vnode/src/vnd/vnodeWrite.c
@@ -132,6 +132,15 @@ int  vnodeApplyWMsg(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp) {
       if (tqProcessRebReq(pVnode->pTq, POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead))) < 0) {
       }
     } break;
+    case TDMT_VND_CREATE_SMA: {  // timeRangeSMA
+      // 1. tdCreateSmaMeta(pVnode->pMeta,...);
+      // 2. tdCreateSmaDataInit();
+      // 3. tdCreateSmaData
+    } break;
+    case TDMT_VND_CANCEL_SMA: {  // timeRangeSMA
+    } break;
+    case TDMT_VND_DROP_SMA: {  // timeRangeSMA
+    } break;
     default:
       ASSERT(0);
       break;
diff --git a/source/dnode/vnode/test/tsdbSmaTest.cpp b/source/dnode/vnode/test/tsdbSmaTest.cpp
index 986986aa7024167c7b7bc3c662a28b08f0402641..97157fc49cf8f58840a52e9e3fc6957cb796c315 100644
--- a/source/dnode/vnode/test/tsdbSmaTest.cpp
+++ b/source/dnode/vnode/test/tsdbSmaTest.cpp
@@ -95,7 +95,7 @@ TEST(testCase, tSmaEncodeDecodeTest) {
 
   // resource release
   tdDestroyTSma(&tSma, false);
-  tdDestroyTSmaWrapper(&dstTSmaWrapper);
+  tdDestroyTSmaWrapper(&dstTSmaWrapper, false);
 }
 
 TEST(testCase, tSma_DB_Put_Get_Del_Test) {
@@ -161,7 +161,7 @@ TEST(testCase, tSma_DB_Put_Get_Del_Test) {
   EXPECT_EQ(qSmaCfg->interval, tSma.interval);
   tdDestroyTSma(qSmaCfg, true);
 
-  // get value by table uid
+  // get index name by table uid
   SMSmaCursor *pSmaCur = metaOpenSmaCursor(pMeta, tbUid);
   assert(pSmaCur != NULL);
   uint32_t indexCnt = 0;
@@ -176,6 +176,15 @@ TEST(testCase, tSma_DB_Put_Get_Del_Test) {
   EXPECT_EQ(indexCnt, 2);
   metaCloseSmaCurosr(pSmaCur);
 
+  // get wrapper by table uid
+  STSmaWrapper *pSW = metaGetSmaInfoByUid(pMeta, tbUid);
+  assert(pSW != NULL);
+  EXPECT_EQ(pSW->number, 2);
+  EXPECT_STRCASEEQ(pSW->tSma->indexName, smaIndexName1);
+  EXPECT_EQ(pSW->tSma->tableUid, tSma.tableUid);
+  EXPECT_STRCASEEQ((pSW->tSma + 1)->indexName, smaIndexName2);
+  EXPECT_EQ((pSW->tSma + 1)->tableUid, tSma.tableUid);
+
   // resource release
   metaRemoveSmaFromDb(pMeta, smaIndexName1);
   metaRemoveSmaFromDb(pMeta, smaIndexName2);
@@ -197,15 +206,15 @@ TEST(testCase, tSmaInsertTest) {
 
   int32_t blockSize = tSma.numOfFuncIds * sizeof(int64_t);
   int32_t numOfColIds = 3;
-  int32_t numOfSmaBlocks = 10;
+  int32_t numOfBlocks = 10;
 
-  int32_t dataLen = numOfColIds * numOfSmaBlocks * blockSize;
+  int32_t dataLen = numOfColIds * numOfBlocks * blockSize;
 
   pSmaData = (STSmaData*)malloc(sizeof(STSmaData) + dataLen);
   ASSERT_EQ(pSmaData != NULL, true);
   pSmaData->tableUid = 3232329230;
   pSmaData->numOfColIds = numOfColIds;
-  pSmaData->numOfSmaBlocks = numOfSmaBlocks;
+  pSmaData->numOfBlocks = numOfBlocks;
   pSmaData->dataLen = dataLen;
   pSmaData->tsWindow.skey = 1640000000;
   pSmaData->tsWindow.ekey = 1645788649;