diff --git a/src/common/inc/tglobal.h b/src/common/inc/tglobal.h
index 4b8347ead02b8aca7b681b15adb93154c668956d..9a5209531d487b4231189727aa8af64d39423514 100644
--- a/src/common/inc/tglobal.h
+++ b/src/common/inc/tglobal.h
@@ -110,6 +110,10 @@ extern int8_t  tsCacheLastRow;
 //tsdb 
 extern bool tsdbForceKeepFile;
 
+#ifdef __TD_6117__
+extern bool tsdbQueryFromSMA;
+#endif
+
 // balance
 extern int8_t  tsEnableBalance;
 extern int8_t  tsAlternativeRole;
diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index f169b07bb2b113f1691e9b57b0f1ec378e013815..92b3e58ad0ceb70f20d636a02e8b254e4b66efec 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -156,6 +156,10 @@ int32_t tsTsdbMetaCompactRatio = TSDB_META_COMPACT_RATIO;
 // For backward compatibility
 bool tsdbForceKeepFile = false;
 
+#ifdef __TD_6117__
+bool tsdbQueryFromSMA = true;
+#endif
+
 // balance
 int8_t  tsEnableBalance = 1;
 int8_t  tsAlternativeRole = 0;
diff --git a/src/dnode/src/dnodeSystem.c b/src/dnode/src/dnodeSystem.c
index 2f77788025e6d5f36460ceb866b64d54736af6a1..2176aadf863573a0126cc3c953116579eb326139 100644
--- a/src/dnode/src/dnodeSystem.c
+++ b/src/dnode/src/dnodeSystem.c
@@ -42,6 +42,11 @@ int32_t main(int32_t argc, char *argv[]) {
       }
     } else if (strcmp(argv[i], "-C") == 0) {
       dump_config = 1;
+    }
+#ifdef __TD_6117__
+    else if (strcmp(argv[i], "--disable-query-from-sma") == 0) {
+      tsdbQueryFromSMA = false;
+#endif
     } else if (strcmp(argv[i], "--force-keep-file") == 0) {
       tsdbForceKeepFile = true;
     } else if (strcmp(argv[i], "--compact-mnode-wal") == 0) {
diff --git a/src/inc/taosdef.h b/src/inc/taosdef.h
index 44b3a2cf0d08d550e037113ac86abde9c79b176e..7e9e9c6909b48bc376108200a21c2a946347835a 100644
--- a/src/inc/taosdef.h
+++ b/src/inc/taosdef.h
@@ -447,6 +447,8 @@ typedef enum {
   TD_ROW_PARTIAL_UPDATE   = 2
 } TDUpdateConfig;
 
+#define __TD_6117__
+
 extern char *qtypeStr[];
 
 #ifdef __cplusplus
diff --git a/src/tsdb/inc/tsdbCommit.h b/src/tsdb/inc/tsdbCommit.h
index cde728b1705cd1eead065772978631fb4b36246d..9cb8417c4512182d087bd0001640256a692d14a3 100644
--- a/src/tsdb/inc/tsdbCommit.h
+++ b/src/tsdb/inc/tsdbCommit.h
@@ -38,8 +38,8 @@ 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   tsdbWriteBlockImpl(STsdbRepo *pRepo, STable *pTable, SDFile *pDFile, SDFile *pDFileAggr, SDataCols *pDataCols,
+                         SBlock *pBlock, bool isLast, bool isSuper, void **ppBuf, void **ppCBuf, void **ppExBuf);
 int   tsdbApplyRtn(STsdbRepo *pRepo);
 
 static FORCE_INLINE int tsdbGetFidLevel(int fid, SRtn *pRtn) {
diff --git a/src/tsdb/inc/tsdbFS.h b/src/tsdb/inc/tsdbFS.h
index 3b6b6449f630c9a783e098fb1af08d960bcb1407..f7d234138b7f72e19ecdb0aba52789e02955f3e3 100644
--- a/src/tsdb/inc/tsdbFS.h
+++ b/src/tsdb/inc/tsdbFS.h
@@ -16,7 +16,13 @@
 #ifndef _TD_TSDB_FS_H_
 #define _TD_TSDB_FS_H_
 
-#define TSDB_FS_VERSION 0
+/**
+ * The fileset .head/.data/.last/.sma use the same TSDB_FS_VERSION.
+ * 0 - original format before 2021.08.25 // TODO update date 2021.08.25 to release version.
+ * 1 - extract aggregation block data from .data file and save to separated .sma file since 2021.08.25 // TODO update
+ * date to release version.
+ */
+#define TSDB_FS_VERSION 1
 
 // ================== CURRENT file header info
 typedef struct {
diff --git a/src/tsdb/inc/tsdbFile.h b/src/tsdb/inc/tsdbFile.h
index b9d5431de6bc3864a4a13ea30356033de76da178..10d119eed1395bbf9dcc256364cb4b5a4b902c0a 100644
--- a/src/tsdb/inc/tsdbFile.h
+++ b/src/tsdb/inc/tsdbFile.h
@@ -38,7 +38,7 @@
 #define TSDB_FILE_IS_OK(tf) (TSDB_FILE_STATE(tf) == TSDB_FILE_STATE_OK)
 #define TSDB_FILE_IS_BAD(tf) (TSDB_FILE_STATE(tf) == TSDB_FILE_STATE_BAD)
 
-typedef enum { TSDB_FILE_HEAD = 0, TSDB_FILE_DATA, TSDB_FILE_LAST, TSDB_FILE_MAX, TSDB_FILE_META } TSDB_FILE_T;
+typedef enum { TSDB_FILE_HEAD = 0, TSDB_FILE_DATA, TSDB_FILE_LAST, TSDB_FILE_SMA, TSDB_FILE_MAX, TSDB_FILE_META } TSDB_FILE_T;
 
 // =============== SMFile
 typedef struct {
diff --git a/src/tsdb/inc/tsdbReadImpl.h b/src/tsdb/inc/tsdbReadImpl.h
index 814c4d130599768e8237145559c47e50e64db4db..132ea0634cdadff2583fc5e2043ee3aae6b2999a 100644
--- a/src/tsdb/inc/tsdbReadImpl.h
+++ b/src/tsdb/inc/tsdbReadImpl.h
@@ -42,6 +42,11 @@ typedef struct {
   int32_t numOfRows : 24;
   int32_t len;
   int32_t keyLen;  // key column length, keyOffset = offset+sizeof(SBlockData)+sizeof(SBlockCol)*numOfCols
+#ifdef __TD_6117__
+  int64_t hasAggr : 1;
+  int64_t aggrOffset : 63;
+  int32_t aggrLen;
+#endif
   int16_t numOfSubBlocks;
   int16_t numOfCols;  // not including timestamp column
   TSKEY   keyFirst;
@@ -70,6 +75,18 @@ typedef struct {
   char     padding[1];
 } SBlockCol;
 
+typedef struct {
+  int16_t colId;
+  int16_t maxIndex;
+  int16_t minIndex;
+  int16_t numOfNull;
+  int64_t sum;
+  int64_t max;
+  int64_t min;
+  uint8_t type;
+  char    reserved[15];  // Adjust the size of reserved array whenever adding new field of SAggrBlkCol.
+} SAggrBlkCol;
+
 // Code here just for back-ward compatibility
 static FORCE_INLINE void tsdbSetBlockColOffset(SBlockCol *pBlockCol, uint32_t offset) {
   pBlockCol->offset = offset & ((((uint32_t)1) << 24) - 1);
@@ -88,6 +105,12 @@ typedef struct {
   uint64_t  uid;        // For recovery usage
   SBlockCol cols[];
 } SBlockData;
+typedef struct {
+  int32_t     delimiter;  // For recovery usage
+  int32_t     numOfCols;  // For recovery usage
+  uint64_t    uid;        // For recovery usage
+  SAggrBlkCol cols[];
+} SAggrBlkData;
 
 struct SReadH {
   STsdbRepo * pRepo;
@@ -98,9 +121,13 @@ struct SReadH {
   int         cidx;
   SBlockInfo *pBlkInfo;
   SBlockData *pBlkData;  // Block info
+#ifdef __TD_6117__
+  SAggrBlkData *pAggrBlkData;  // Block info
+#endif
   SDataCols * pDCols[2];
-  void *      pBuf;   // buffer
+  void *      pRBuf;  // buffer
   void *      pCBuf;  // compression buffer
+  void *      pExBuf;  // extra buffer
 };
 
 #define TSDB_READ_REPO(rh) ((rh)->pRepo)
@@ -110,10 +137,13 @@ struct SReadH {
 #define TSDB_READ_HEAD_FILE(rh) TSDB_DFILE_IN_SET(TSDB_READ_FSET(rh), TSDB_FILE_HEAD)
 #define TSDB_READ_DATA_FILE(rh) TSDB_DFILE_IN_SET(TSDB_READ_FSET(rh), TSDB_FILE_DATA)
 #define TSDB_READ_LAST_FILE(rh) TSDB_DFILE_IN_SET(TSDB_READ_FSET(rh), TSDB_FILE_LAST)
-#define TSDB_READ_BUF(rh) ((rh)->pBuf)
+#define TSDB_READ_AGGR_FILE(rh) TSDB_DFILE_IN_SET(TSDB_READ_FSET(rh), TSDB_FILE_SMA)
+#define TSDB_READ_BUF(rh) ((rh)->pRBuf)
 #define TSDB_READ_COMP_BUF(rh) ((rh)->pCBuf)
+#define TSDB_READ_EXBUF(rh) ((rh)->pExBuf)
 
 #define TSDB_BLOCK_STATIS_SIZE(ncols) (sizeof(SBlockData) + sizeof(SBlockCol) * (ncols) + sizeof(TSCKSUM))
+#define TSDB_BLOCK_AGGR_SIZE(ncols) (sizeof(SAggrBlkData) + sizeof(SAggrBlkCol) * (ncols) + sizeof(TSCKSUM))
 
 int   tsdbInitReadH(SReadH *pReadh, STsdbRepo *pRepo);
 void  tsdbDestroyReadH(SReadH *pReadh);
diff --git a/src/tsdb/src/tsdbCommit.c b/src/tsdb/src/tsdbCommit.c
index 15fc3cc47d663aa6f2fb8910ebbadc03861418c7..78e40439cff85eb4307c3afc328f03a4eb61f9f4 100644
--- a/src/tsdb/src/tsdbCommit.c
+++ b/src/tsdb/src/tsdbCommit.c
@@ -35,6 +35,7 @@ typedef struct {
   SDFileSet    wSet;
   bool         isDFileSame;
   bool         isLFileSame;
+  bool         isSmaFileSame;
   TSKEY        minKey;
   TSKEY        maxKey;
   SArray *     aBlkIdx;  // SBlockIdx array
@@ -51,8 +52,10 @@ typedef struct {
 #define TSDB_COMMIT_HEAD_FILE(ch) TSDB_DFILE_IN_SET(TSDB_COMMIT_WRITE_FSET(ch), TSDB_FILE_HEAD)
 #define TSDB_COMMIT_DATA_FILE(ch) TSDB_DFILE_IN_SET(TSDB_COMMIT_WRITE_FSET(ch), TSDB_FILE_DATA)
 #define TSDB_COMMIT_LAST_FILE(ch) TSDB_DFILE_IN_SET(TSDB_COMMIT_WRITE_FSET(ch), TSDB_FILE_LAST)
+#define TSDB_COMMIT_AGGR_FILE(ch) TSDB_DFILE_IN_SET(TSDB_COMMIT_WRITE_FSET(ch), TSDB_FILE_SMA)
 #define TSDB_COMMIT_BUF(ch) TSDB_READ_BUF(&((ch)->readh))
 #define TSDB_COMMIT_COMP_BUF(ch) TSDB_READ_COMP_BUF(&((ch)->readh))
+#define TSDB_COMMIT_EXBUF(ch) TSDB_READ_EXBUF(&((ch)->readh))
 #define TSDB_COMMIT_DEFAULT_ROWS(ch) TSDB_DEFAULT_BLOCK_ROWS(TSDB_COMMIT_REPO(ch)->config.maxRowsPerFileBlock)
 #define TSDB_COMMIT_TXN_VERSION(ch) FS_TXN_VERSION(REPO_FS(TSDB_COMMIT_REPO(ch)))
 
@@ -912,7 +915,7 @@ static int tsdbNextCommitFid(SCommitH *pCommith) {
     } else {
       int tfid = (int)(TSDB_KEY_FID(nextKey, pCfg->daysPerFile, pCfg->precision));
       if (fid == TSDB_IVLD_FID || fid > tfid) {
-        fid = tfid;
+        fid = tfid;  // find the least fid
       }
     }
   }
@@ -1053,11 +1056,12 @@ static int tsdbComparKeyBlock(const void *arg1, const void *arg2) {
   }
 }
 
-int tsdbWriteBlockImpl(STsdbRepo *pRepo, STable *pTable, SDFile *pDFile, SDataCols *pDataCols, SBlock *pBlock,
-                       bool isLast, bool isSuper, void **ppBuf, void **ppCBuf) {
+int tsdbWriteBlockImpl(STsdbRepo *pRepo, STable *pTable, SDFile *pDFile, SDFile *pDFileAggr, SDataCols *pDataCols,
+                       SBlock *pBlock, bool isLast, bool isSuper, void **ppBuf, void **ppCBuf, void **ppExBuf) {
   STsdbCfg *  pCfg = REPO_CFG(pRepo);
   SBlockData *pBlockData;
-  int64_t     offset = 0;
+  SAggrBlkData *pAggrBlkData = NULL;
+  int64_t     offset = 0, offsetAggr = 0;
   int         rowsToWrite = pDataCols->numOfRows;
 
   ASSERT(rowsToWrite > 0 && rowsToWrite <= pCfg->maxRowsPerFileBlock);
@@ -1069,24 +1073,38 @@ int tsdbWriteBlockImpl(STsdbRepo *pRepo, STable *pTable, SDFile *pDFile, SDataCo
   }
   pBlockData = (SBlockData *)(*ppBuf);
 
+  if (tsdbMakeRoom(ppExBuf, TSDB_BLOCK_AGGR_SIZE(pDataCols->numOfCols)) < 0) {
+    return -1;
+  }
+  pAggrBlkData = (SAggrBlkData *)(*ppExBuf);
+
   // Get # of cols not all NULL(not including key column)
   int nColsNotAllNull = 0;
   for (int ncol = 1; ncol < pDataCols->numOfCols; ncol++) {  // ncol from 1, we skip the timestamp column
     SDataCol * pDataCol = pDataCols->cols + ncol;
     SBlockCol *pBlockCol = pBlockData->cols + nColsNotAllNull;
+    SAggrBlkCol *pAggrBlkCol = pAggrBlkData->cols + nColsNotAllNull;
 
     if (isAllRowsNull(pDataCol)) {  // all data to commit are NULL, just ignore it
       continue;
     }
 
     memset(pBlockCol, 0, sizeof(*pBlockCol));
+    memset(pAggrBlkCol, 0, sizeof(*pAggrBlkCol));
 
     pBlockCol->colId = pDataCol->colId;
     pBlockCol->type = pDataCol->type;
+
+    pAggrBlkCol->colId = pDataCol->colId;
+    pAggrBlkCol->type = pDataCol->type;
+
     if (tDataTypes[pDataCol->type].statisFunc) {
       (*tDataTypes[pDataCol->type].statisFunc)(pDataCol->pData, rowsToWrite, &(pBlockCol->min), &(pBlockCol->max),
                                                &(pBlockCol->sum), &(pBlockCol->minIndex), &(pBlockCol->maxIndex),
                                                &(pBlockCol->numOfNull));
+      (*tDataTypes[pDataCol->type].statisFunc)(pDataCol->pData, rowsToWrite, &(pAggrBlkCol->min), &(pAggrBlkCol->max),
+                                               &(pAggrBlkCol->sum), &(pAggrBlkCol->minIndex), &(pAggrBlkCol->maxIndex),
+                                               &(pAggrBlkCol->numOfNull));
     }
     nColsNotAllNull++;
   }
@@ -1099,12 +1117,15 @@ int tsdbWriteBlockImpl(STsdbRepo *pRepo, STable *pTable, SDFile *pDFile, SDataCo
   int32_t  tsize = TSDB_BLOCK_STATIS_SIZE(nColsNotAllNull);
   int32_t  lsize = tsize;
   int32_t  keyLen = 0;
+
+  int32_t  tsizeAggr = TSDB_BLOCK_AGGR_SIZE(nColsNotAllNull);
+
   for (int ncol = 0; ncol < pDataCols->numOfCols; ncol++) {
     // All not NULL columns finish
     if (ncol != 0 && tcol >= nColsNotAllNull) break;
 
-    SDataCol * pDataCol = pDataCols->cols + ncol;
-    SBlockCol *pBlockCol = pBlockData->cols + tcol;
+    SDataCol *   pDataCol = pDataCols->cols + ncol;
+    SBlockCol *  pBlockCol = pBlockData->cols + tcol;
 
     if (ncol != 0 && (pDataCol->colId != pBlockCol->colId)) continue;
 
@@ -1165,6 +1186,20 @@ int tsdbWriteBlockImpl(STsdbRepo *pRepo, STable *pTable, SDFile *pDFile, SDataCo
     return -1;
   }
 
+#ifdef __TD_6117__
+  pAggrBlkData->delimiter = TSDB_FILE_DELIMITER;
+  pAggrBlkData->uid = TABLE_UID(pTable);
+  pAggrBlkData->numOfCols = nColsNotAllNull;
+
+  taosCalcChecksumAppend(0, (uint8_t *)pAggrBlkData, tsizeAggr);
+  tsdbUpdateDFileMagic(pDFileAggr, POINTER_SHIFT(pAggrBlkData, tsizeAggr - sizeof(TSCKSUM)));
+
+  // Write the whole block to file
+  if (tsdbAppendDFile(pDFileAggr, (void *)pAggrBlkData, tsizeAggr, &offsetAggr) < tsizeAggr) {
+    return -1;
+  }
+#endif
+
   // Update pBlock membership vairables
   pBlock->last = isLast;
   pBlock->offset = offset;
@@ -1176,6 +1211,11 @@ int tsdbWriteBlockImpl(STsdbRepo *pRepo, STable *pTable, SDFile *pDFile, SDataCo
   pBlock->numOfCols = nColsNotAllNull;
   pBlock->keyFirst = dataColsKeyFirst(pDataCols);
   pBlock->keyLast = dataColsKeyLast(pDataCols);
+#ifdef __TD_6117__
+  pBlock->hasAggr = 1;
+  pBlock->aggrOffset = offsetAggr;
+  pBlock->aggrLen = tsizeAggr;
+#endif
 
   tsdbDebug("vgId:%d tid:%d a block of data is written to file %s, offset %" PRId64
             " numOfRows %d len %d numOfCols %" PRId16 " keyFirst %" PRId64 " keyLast %" PRId64,
@@ -1187,9 +1227,9 @@ int tsdbWriteBlockImpl(STsdbRepo *pRepo, STable *pTable, SDFile *pDFile, SDataCo
 
 static int tsdbWriteBlock(SCommitH *pCommith, SDFile *pDFile, SDataCols *pDataCols, SBlock *pBlock, bool isLast,
                           bool isSuper) {
-  return tsdbWriteBlockImpl(TSDB_COMMIT_REPO(pCommith), TSDB_COMMIT_TABLE(pCommith), pDFile, pDataCols, pBlock, isLast,
+  return tsdbWriteBlockImpl(TSDB_COMMIT_REPO(pCommith), TSDB_COMMIT_TABLE(pCommith), pDFile, TSDB_COMMIT_AGGR_FILE(pCommith), pDataCols, pBlock, isLast,
                             isSuper, (void **)(&(TSDB_COMMIT_BUF(pCommith))),
-                            (void **)(&(TSDB_COMMIT_COMP_BUF(pCommith))));
+                            (void **)(&(TSDB_COMMIT_COMP_BUF(pCommith))), (void **)(&(TSDB_COMMIT_EXBUF(pCommith))));
 }
 
 
@@ -1611,6 +1651,23 @@ static int tsdbSetAndOpenCommitFile(SCommitH *pCommith, SDFileSet *pSet, int fid
         }
       }
     }
+
+    // TSDB_FILE_SMA
+    SDFile *pRSmaf = TSDB_READ_AGGR_FILE(&(pCommith->readh));
+    SDFile *pWSmaf = TSDB_COMMIT_AGGR_FILE(pCommith);
+    tsdbInitDFileEx(pWSmaf, pRSmaf);
+    if (tsdbOpenDFile(pWSmaf, O_WRONLY) < 0) {
+      tsdbError("vgId:%d failed to open file %s to commit since %s", REPO_ID(pRepo), TSDB_FILE_FULL_NAME(pWSmaf),
+                tstrerror(terrno));
+
+      tsdbCloseDFileSet(pWSet);
+      tsdbRemoveDFile(pWHeadf);
+      if (pCommith->isRFileSet) {
+        tsdbCloseAndUnsetFSet(&(pCommith->readh));
+        return -1;
+      }
+    }
+    pCommith->isSmaFileSame = true;
   }
 
   return 0;
diff --git a/src/tsdb/src/tsdbCompact.c b/src/tsdb/src/tsdbCompact.c
index 5ccb9e90f2407561709d36a85ac3e992e5d5a8ba..6eb8a35e0624813c6ea34330c6f783f0c12cdec2 100644
--- a/src/tsdb/src/tsdbCompact.c
+++ b/src/tsdb/src/tsdbCompact.c
@@ -37,8 +37,10 @@ typedef struct {
 #define TSDB_COMPACT_HEAD_FILE(pComph) TSDB_DFILE_IN_SET(TSDB_COMPACT_WSET(pComph), TSDB_FILE_HEAD)
 #define TSDB_COMPACT_DATA_FILE(pComph) TSDB_DFILE_IN_SET(TSDB_COMPACT_WSET(pComph), TSDB_FILE_DATA)
 #define TSDB_COMPACT_LAST_FILE(pComph) TSDB_DFILE_IN_SET(TSDB_COMPACT_WSET(pComph), TSDB_FILE_LAST)
+#define TSDB_COMPACT_AGGR_FILE(pComph) TSDB_DFILE_IN_SET(TSDB_COMPACT_WSET(pComph), TSDB_FILE_SMA)
 #define TSDB_COMPACT_BUF(pComph) TSDB_READ_BUF(&((pComph)->readh))
 #define TSDB_COMPACT_COMP_BUF(pComph) TSDB_READ_COMP_BUF(&((pComph)->readh))
+#define TSDB_COMPACT_EXBUF(pComph) TSDB_READ_EXBUF(&((pComph)->readh))
 
 static int  tsdbAsyncCompact(STsdbRepo *pRepo);
 static void tsdbStartCompact(STsdbRepo *pRepo);
@@ -56,7 +58,7 @@ static int  tsdbCompactFSetInit(SCompactH *pComph, SDFileSet *pSet);
 static void tsdbCompactFSetEnd(SCompactH *pComph);
 static int  tsdbCompactFSetImpl(SCompactH *pComph);
 static int  tsdbWriteBlockToRightFile(SCompactH *pComph, STable *pTable, SDataCols *pDataCols, void **ppBuf,
-                                      void **ppCBuf);
+                                      void **ppCBuf, void **ppExBuf);
 
 enum { TSDB_NO_COMPACT, TSDB_IN_COMPACT, TSDB_WAITING_COMPACT};
 int tsdbCompact(STsdbRepo *pRepo) { return tsdbAsyncCompact(pRepo); }
@@ -421,6 +423,7 @@ static int tsdbCompactMeta(STsdbRepo *pRepo) {
     SBlockIdx  blkIdx;
     void **    ppBuf = &(TSDB_COMPACT_BUF(pComph));
     void **    ppCBuf = &(TSDB_COMPACT_COMP_BUF(pComph));
+    void **    ppExBuf = &(TSDB_COMPACT_EXBUF(pComph));
     int        defaultRows = TSDB_DEFAULT_BLOCK_ROWS(pCfg->maxRowsPerFileBlock);
 
     taosArrayClear(pComph->aBlkIdx);
@@ -451,7 +454,7 @@ static int tsdbCompactMeta(STsdbRepo *pRepo) {
 
         // Merge pComph->pDataCols and pReadh->pDCols[0] and write data to file
         if (pComph->pDataCols->numOfRows == 0 && pBlock->numOfRows >= defaultRows) {
-          if (tsdbWriteBlockToRightFile(pComph, pTh->pTable, pReadh->pDCols[0], ppBuf, ppCBuf) < 0) {
+          if (tsdbWriteBlockToRightFile(pComph, pTh->pTable, pReadh->pDCols[0], ppBuf, ppCBuf, ppExBuf) < 0) {
             return -1;
           }
         } else {
@@ -467,7 +470,7 @@ static int tsdbCompactMeta(STsdbRepo *pRepo) {
               break;
             }
 
-            if (tsdbWriteBlockToRightFile(pComph, pTh->pTable, pComph->pDataCols, ppBuf, ppCBuf) < 0) {
+            if (tsdbWriteBlockToRightFile(pComph, pTh->pTable, pComph->pDataCols, ppBuf, ppCBuf, ppExBuf) < 0) {
               return -1;
             }
             tdResetDataCols(pComph->pDataCols);
@@ -476,7 +479,7 @@ static int tsdbCompactMeta(STsdbRepo *pRepo) {
       }
 
       if (pComph->pDataCols->numOfRows > 0 &&
-          tsdbWriteBlockToRightFile(pComph, pTh->pTable, pComph->pDataCols, ppBuf, ppCBuf) < 0) {
+          tsdbWriteBlockToRightFile(pComph, pTh->pTable, pComph->pDataCols, ppBuf, ppCBuf, ppExBuf) < 0) {
         return -1;
       }
 
@@ -499,7 +502,7 @@ static int tsdbCompactMeta(STsdbRepo *pRepo) {
   }
 
   static int tsdbWriteBlockToRightFile(SCompactH *pComph, STable *pTable, SDataCols *pDataCols, void **ppBuf,
-                                      void **ppCBuf) {
+                                       void **ppCBuf, void **ppExBuf) {
     STsdbRepo *pRepo = TSDB_COMPACT_REPO(pComph);
     STsdbCfg * pCfg = REPO_CFG(pRepo);
     SDFile *   pDFile;
@@ -516,7 +519,8 @@ static int tsdbCompactMeta(STsdbRepo *pRepo) {
       isLast = false;
     }
 
-    if (tsdbWriteBlockImpl(pRepo, pTable, pDFile, pDataCols, &block, isLast, true, ppBuf, ppCBuf) < 0) {
+    if (tsdbWriteBlockImpl(pRepo, pTable, pDFile, TSDB_COMPACT_AGGR_FILE(pComph), pDataCols, &block, isLast, true,
+                           ppBuf, ppCBuf, ppExBuf) < 0) {
       return -1;
     }
 
@@ -526,5 +530,5 @@ static int tsdbCompactMeta(STsdbRepo *pRepo) {
     }
 
     return 0;
-}
+  }
 
diff --git a/src/tsdb/src/tsdbFile.c b/src/tsdb/src/tsdbFile.c
index 0f13b6108f6558ab7948df01e38b0c3fd0d2cd9a..bf0d191cf6d7dca912a7da9ec5486c97693eb436 100644
--- a/src/tsdb/src/tsdbFile.c
+++ b/src/tsdb/src/tsdbFile.c
@@ -19,6 +19,7 @@ static const char *TSDB_FNAME_SUFFIX[] = {
     "head",     // TSDB_FILE_HEAD
     "data",     // TSDB_FILE_DATA
     "last",     // TSDB_FILE_LAST
+    "sma",      // TSDB_FILE_SMA(Small Materialized Aggregation)
     "",         // TSDB_FILE_MAX
     "meta",     // TSDB_FILE_META
 };
diff --git a/src/tsdb/src/tsdbReadImpl.c b/src/tsdb/src/tsdbReadImpl.c
index 74d41cce194f9921ee0c521de9e329bad5eeb3f9..5816ed85567ed5630bc3449b8d8f36358bef5583 100644
--- a/src/tsdb/src/tsdbReadImpl.c
+++ b/src/tsdb/src/tsdbReadImpl.c
@@ -61,9 +61,11 @@ int tsdbInitReadH(SReadH *pReadh, STsdbRepo *pRepo) {
 
 void tsdbDestroyReadH(SReadH *pReadh) {
   if (pReadh == NULL) return;
-
+#ifdef __TD_6117__
+  pReadh->pExBuf = taosTZfree(pReadh->pExBuf);
+#endif
   pReadh->pCBuf = taosTZfree(pReadh->pCBuf);
-  pReadh->pBuf = taosTZfree(pReadh->pBuf);
+  pReadh->pRBuf = taosTZfree(pReadh->pRBuf);
   pReadh->pDCols[0] = tdFreeDataCols(pReadh->pDCols[0]);
   pReadh->pDCols[1] = tdFreeDataCols(pReadh->pDCols[1]);
   pReadh->pBlkData = taosTZfree(pReadh->pBlkData);
@@ -298,38 +300,80 @@ int tsdbLoadBlockDataCols(SReadH *pReadh, SBlock *pBlock, SBlockInfo *pBlkInfo,
 
 int tsdbLoadBlockStatis(SReadH *pReadh, SBlock *pBlock) {
   ASSERT(pBlock->numOfSubBlocks <= 1);
+  if (!tsdbQueryFromSMA) {
+    SDFile *pDFile = (pBlock->last) ? TSDB_READ_LAST_FILE(pReadh) : TSDB_READ_DATA_FILE(pReadh);
 
-  SDFile *pDFile = (pBlock->last) ? TSDB_READ_LAST_FILE(pReadh) : TSDB_READ_DATA_FILE(pReadh);
+    if (tsdbSeekDFile(pDFile, pBlock->offset, SEEK_SET) < 0) {
+      tsdbError("vgId:%d failed to load block statis part while seek file %s to offset %" PRId64 " since %s",
+                TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFile), (int64_t)pBlock->offset, tstrerror(terrno));
+      return -1;
+    }
 
-  if (tsdbSeekDFile(pDFile, pBlock->offset, SEEK_SET) < 0) {
-    tsdbError("vgId:%d failed to load block statis part while seek file %s to offset %" PRId64 " since %s",
-              TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFile), (int64_t)pBlock->offset, tstrerror(terrno));
-    return -1;
-  }
+    size_t size = TSDB_BLOCK_STATIS_SIZE(pBlock->numOfCols);
+    if (tsdbMakeRoom((void **)(&(pReadh->pBlkData)), size) < 0) return -1;
 
-  size_t size = TSDB_BLOCK_STATIS_SIZE(pBlock->numOfCols);
-  if (tsdbMakeRoom((void **)(&(pReadh->pBlkData)), size) < 0) return -1;
+    int64_t nread = tsdbReadDFile(pDFile, (void *)(pReadh->pBlkData), size);
+    if (nread < 0) {
+      tsdbError("vgId:%d failed to load block statis part while read file %s since %s, offset:%" PRId64 " len :%" PRIzu,
+                TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFile), tstrerror(terrno), (int64_t)pBlock->offset,
+                size);
+      return -1;
+    }
 
-  int64_t nread = tsdbReadDFile(pDFile, (void *)(pReadh->pBlkData), size);
-  if (nread < 0) {
-    tsdbError("vgId:%d failed to load block statis part while read file %s since %s, offset:%" PRId64 " len :%" PRIzu,
-              TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFile), tstrerror(terrno), (int64_t)pBlock->offset, size);
-    return -1;
-  }
+    if (nread < size) {
+      terrno = TSDB_CODE_TDB_FILE_CORRUPTED;
+      tsdbError("vgId:%d block statis part in file %s is corrupted, offset:%" PRId64 " expected bytes:%" PRIzu
+                " read bytes: %" PRId64,
+                TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFile), (int64_t)pBlock->offset, size, nread);
+      return -1;
+    }
 
-  if (nread < size) {
-    terrno = TSDB_CODE_TDB_FILE_CORRUPTED;
-    tsdbError("vgId:%d block statis part in file %s is corrupted, offset:%" PRId64 " expected bytes:%" PRIzu
-              " read bytes: %" PRId64,
-              TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFile), (int64_t)pBlock->offset, size, nread);
-    return -1;
-  }
+    if (!taosCheckChecksumWhole((uint8_t *)(pReadh->pBlkData), (uint32_t)size)) {
+      terrno = TSDB_CODE_TDB_FILE_CORRUPTED;
+      tsdbError("vgId:%d block statis part in file %s is corrupted since wrong checksum, offset:%" PRId64
+                " len :%" PRIzu,
+                TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFile), (int64_t)pBlock->offset, size);
+      return -1;
+    }
+  } else {
+#ifdef __TD_6117__
+    SDFile *pDFileAggr = TSDB_READ_AGGR_FILE(pReadh);
 
-  if (!taosCheckChecksumWhole((uint8_t *)(pReadh->pBlkData), (uint32_t)size)) {
-    terrno = TSDB_CODE_TDB_FILE_CORRUPTED;
-    tsdbError("vgId:%d block statis part in file %s is corrupted since wrong checksum, offset:%" PRId64 " len :%" PRIzu,
-              TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFile), (int64_t)pBlock->offset, size);
-    return -1;
+    if (tsdbSeekDFile(pDFileAggr, pBlock->aggrOffset, SEEK_SET) < 0) {
+      tsdbError("vgId:%d failed to load block statis part while seek file %s to offset %" PRId64 " since %s",
+                TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFileAggr), (int64_t)pBlock->aggrOffset,
+                tstrerror(terrno));
+      return -1;
+    }
+
+    size_t sizeAggr = TSDB_BLOCK_AGGR_SIZE(pBlock->numOfCols);
+    if (tsdbMakeRoom((void **)(&(pReadh->pAggrBlkData)), sizeAggr) < 0) return -1;
+
+    int64_t nreadAggr = tsdbReadDFile(pDFileAggr, (void *)(pReadh->pAggrBlkData), sizeAggr);
+    if (nreadAggr < 0) {
+      tsdbError("vgId:%d failed to load block statis part while read file %s since %s, offset:%" PRId64 " len :%" PRIzu,
+                TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFileAggr), tstrerror(terrno),
+                (int64_t)pBlock->aggrOffset, sizeAggr);
+      return -1;
+    }
+
+    if (nreadAggr < sizeAggr) {
+      terrno = TSDB_CODE_TDB_FILE_CORRUPTED;
+      tsdbError("vgId:%d block statis part in file %s is corrupted, offset:%" PRId64 " expected bytes:%" PRIzu
+                " read bytes: %" PRId64,
+                TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFileAggr), (int64_t)pBlock->aggrOffset, sizeAggr,
+                nreadAggr);
+      return -1;
+    }
+
+    if (!taosCheckChecksumWhole((uint8_t *)(pReadh->pAggrBlkData), (uint32_t)sizeAggr)) {
+      terrno = TSDB_CODE_TDB_FILE_CORRUPTED;
+      tsdbError("vgId:%d block statis part in file %s is corrupted since wrong checksum, offset:%" PRId64
+                " len :%" PRIzu,
+                TSDB_READ_REPO_ID(pReadh), TSDB_FILE_FULL_NAME(pDFileAggr), (int64_t)pBlock->aggrOffset, sizeAggr);
+      return -1;
+    }
+#endif
   }
 
   return 0;
@@ -370,29 +414,57 @@ void *tsdbDecodeSBlockIdx(void *buf, SBlockIdx *pIdx) {
 }
 
 void tsdbGetBlockStatis(SReadH *pReadh, SDataStatis *pStatis, int numOfCols) {
-  SBlockData *pBlockData = pReadh->pBlkData;
+  if (!tsdbQueryFromSMA) {
+    SBlockData *pBlockData = pReadh->pBlkData;
 
-  for (int i = 0, j = 0; i < numOfCols;) {
-    if (j >= pBlockData->numOfCols) {
-      pStatis[i].numOfNull = -1;
-      i++;
-      continue;
+    for (int i = 0, j = 0; i < numOfCols;) {
+      if (j >= pBlockData->numOfCols) {
+        pStatis[i].numOfNull = -1;
+        i++;
+        continue;
+      }
+
+      if (pStatis[i].colId == pBlockData->cols[j].colId) {
+        pStatis[i].sum = pBlockData->cols[j].sum;
+        pStatis[i].max = pBlockData->cols[j].max;
+        pStatis[i].min = pBlockData->cols[j].min;
+        pStatis[i].maxIndex = pBlockData->cols[j].maxIndex;
+        pStatis[i].minIndex = pBlockData->cols[j].minIndex;
+        pStatis[i].numOfNull = pBlockData->cols[j].numOfNull;
+        i++;
+        j++;
+      } else if (pStatis[i].colId < pBlockData->cols[j].colId) {
+        pStatis[i].numOfNull = -1;
+        i++;
+      } else {
+        j++;
+      }
     }
+  } else {
+    SAggrBlkData *pAggrBlkData = pReadh->pAggrBlkData;
 
-    if (pStatis[i].colId == pBlockData->cols[j].colId) {
-      pStatis[i].sum = pBlockData->cols[j].sum;
-      pStatis[i].max = pBlockData->cols[j].max;
-      pStatis[i].min = pBlockData->cols[j].min;
-      pStatis[i].maxIndex = pBlockData->cols[j].maxIndex;
-      pStatis[i].minIndex = pBlockData->cols[j].minIndex;
-      pStatis[i].numOfNull = pBlockData->cols[j].numOfNull;
-      i++;
-      j++;
-    } else if (pStatis[i].colId < pBlockData->cols[j].colId) {
-      pStatis[i].numOfNull = -1;
-      i++;
-    } else {
-      j++;
+    for (int i = 0, j = 0; i < numOfCols;) {
+      if (j >= pAggrBlkData->numOfCols) {
+        pStatis[i].numOfNull = -1;
+        i++;
+        continue;
+      }
+
+      if (pStatis[i].colId == pAggrBlkData->cols[j].colId) {
+        pStatis[i].sum = pAggrBlkData->cols[j].sum;
+        pStatis[i].max = pAggrBlkData->cols[j].max;
+        pStatis[i].min = pAggrBlkData->cols[j].min;
+        pStatis[i].maxIndex = pAggrBlkData->cols[j].maxIndex;
+        pStatis[i].minIndex = pAggrBlkData->cols[j].minIndex;
+        pStatis[i].numOfNull = pAggrBlkData->cols[j].numOfNull;
+        i++;
+        j++;
+      } else if (pStatis[i].colId < pAggrBlkData->cols[j].colId) {
+        pStatis[i].numOfNull = -1;
+        i++;
+      } else {
+        j++;
+      }
     }
   }
 }
@@ -653,7 +725,7 @@ static int tsdbLoadColData(SReadH *pReadh, SDFile *pDFile, SBlock *pBlock, SBloc
     return -1;
   }
 
-  if (tsdbCheckAndDecodeColumnData(pDataCol, pReadh->pBuf, pBlockCol->len, pBlock->algorithm, pBlock->numOfRows,
+  if (tsdbCheckAndDecodeColumnData(pDataCol, pReadh->pRBuf, pBlockCol->len, pBlock->algorithm, pBlock->numOfRows,
                                    pCfg->maxRowsPerFileBlock, pReadh->pCBuf, (int32_t)taosTSizeof(pReadh->pCBuf)) < 0) {
     tsdbError("vgId:%d file %s is broken at column %d offset %" PRId64, REPO_ID(pRepo), TSDB_FILE_FULL_NAME(pDFile),
               pBlockCol->colId, offset);