diff --git a/src/client/inc/tsclient.h b/src/client/inc/tsclient.h
index 35d3184ccb898e8b11533909df254e0b373ea029..f1b620176d53f24ede3d7a39214a809f54b3fe80 100644
--- a/src/client/inc/tsclient.h
+++ b/src/client/inc/tsclient.h
@@ -84,7 +84,7 @@ typedef struct SSqlExpr {
   int16_t   functionId;     // function id in aAgg array
   int16_t   resType;        // return value type
   int16_t   resBytes;       // length of return value
-  int16_t   interBytes;  // inter result buffer size
+  int32_t   interBytes;  // inter result buffer size
   int16_t   numOfParams;    // argument value of each function
   tVariant  param[3];       // parameters are not more than 3
   int32_t   offset;         // sub result column value of arithmetic expression.
diff --git a/src/client/src/tscFunctionImpl.c b/src/client/src/tscFunctionImpl.c
index 683da0822c23e975caaf9c94d1152e5c031aaa4d..baefdbe102c074224ba90801cd3ee16a70d64df3 100644
--- a/src/client/src/tscFunctionImpl.c
+++ b/src/client/src/tscFunctionImpl.c
@@ -153,7 +153,7 @@ typedef struct SRateInfo {
 
 
 int32_t getResultDataInfo(int32_t dataType, int32_t dataBytes, int32_t functionId, int32_t param, int16_t *type,
-                          int16_t *bytes, int16_t *interBytes, int16_t extLength, bool isSuperTable) {
+                          int16_t *bytes, int32_t *interBytes, int16_t extLength, bool isSuperTable) {
   if (!isValidDataType(dataType, dataBytes)) {
     tscError("Illegal data type %d or data type length %d", dataType, dataBytes);
     return TSDB_CODE_INVALID_SQL;
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index c24c97e286f34bc3e2dbb1838ac8eaa7116bfe08..965e85efbd3587838f10a7900f0153b9b06fcf45 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -1594,7 +1594,7 @@ int32_t addExprAndResultField(SQueryInfo* pQueryInfo, int32_t colIndex, tSQLExpr
 
       int16_t resultType = 0;
       int16_t resultSize = 0;
-      int16_t intermediateResSize = 0;
+      int32_t intermediateResSize = 0;
 
       int16_t functionID = 0;
       if (changeFunctionID(optr, &functionID) != TSDB_CODE_SUCCESS) {
@@ -1901,7 +1901,7 @@ int32_t addExprAndResultField(SQueryInfo* pQueryInfo, int32_t colIndex, tSQLExpr
 
       int16_t bytes = 0;
       int16_t type  = 0;
-      int16_t inter = 0;
+      int32_t inter = 0;
 
       int32_t ret = getResultDataInfo(s.type, s.bytes, TSDB_FUNC_TID_TAG, 0, &type, &bytes, &inter, 0, 0);
       assert(ret == TSDB_CODE_SUCCESS);
@@ -2287,7 +2287,7 @@ int32_t tscTansformSQLFuncForSTableQuery(SQueryInfo* pQueryInfo) {
 
   int16_t bytes = 0;
   int16_t type = 0;
-  int16_t intermediateBytes = 0;
+  int32_t interBytes = 0;
   
   size_t size = tscSqlExprNumOfExprs(pQueryInfo);
   for (int32_t k = 0; k < size; ++k) {
@@ -2301,13 +2301,13 @@ int32_t tscTansformSQLFuncForSTableQuery(SQueryInfo* pQueryInfo) {
         (functionId >= TSDB_FUNC_FIRST_DST && functionId <= TSDB_FUNC_LAST_DST) ||
         (functionId >= TSDB_FUNC_RATE && functionId <= TSDB_FUNC_AVG_IRATE)) {
       if (getResultDataInfo(pSrcSchema->type, pSrcSchema->bytes, functionId, pExpr->param[0].i64Key, &type, &bytes,
-                            &intermediateBytes, 0, true) != TSDB_CODE_SUCCESS) {
+                            &interBytes, 0, true) != TSDB_CODE_SUCCESS) {
         return TSDB_CODE_INVALID_SQL;
       }
 
       tscSqlExprUpdate(pQueryInfo, k, functionId, pExpr->colInfo.colIndex, TSDB_DATA_TYPE_BINARY, bytes);
       // todo refactor
-      pExpr->interBytes = intermediateBytes;
+      pExpr->interBytes = interBytes;
     }
   }
 
@@ -2327,27 +2327,23 @@ void tscRestoreSQLFuncForSTableQuery(SQueryInfo* pQueryInfo) {
     SSqlExpr*   pExpr = tscSqlExprGet(pQueryInfo, i);
     SSchema* pSchema = tscGetTableColumnSchema(pTableMetaInfo->pTableMeta, pExpr->colInfo.colIndex);
     
-//    if (/*(pExpr->functionId >= TSDB_FUNC_FIRST_DST && pExpr->functionId <= TSDB_FUNC_LAST_DST) ||
-//        (pExpr->functionId >= TSDB_FUNC_SUM && pExpr->functionId <= TSDB_FUNC_MAX) ||
-//        pExpr->functionId == TSDB_FUNC_LAST_ROW*/) {
-      // the final result size and type in the same as query on single table.
-      // so here, set the flag to be false;
-      int16_t inter = 0;
-      
-      int32_t functionId = pExpr->functionId;
-      if (functionId >= TSDB_FUNC_TS && functionId <= TSDB_FUNC_DIFF) {
-        continue;
-      }
-      
-      if (functionId == TSDB_FUNC_FIRST_DST) {
-        functionId = TSDB_FUNC_FIRST;
-      } else if (functionId == TSDB_FUNC_LAST_DST) {
-        functionId = TSDB_FUNC_LAST;
-      }
-      
-      getResultDataInfo(pSchema->type, pSchema->bytes, functionId, 0, &pExpr->resType, &pExpr->resBytes,
-                        &inter, 0, false);
-//    }
+    // the final result size and type in the same as query on single table.
+    // so here, set the flag to be false;
+    int32_t inter = 0;
+    
+    int32_t functionId = pExpr->functionId;
+    if (functionId >= TSDB_FUNC_TS && functionId <= TSDB_FUNC_DIFF) {
+      continue;
+    }
+    
+    if (functionId == TSDB_FUNC_FIRST_DST) {
+      functionId = TSDB_FUNC_FIRST;
+    } else if (functionId == TSDB_FUNC_LAST_DST) {
+      functionId = TSDB_FUNC_LAST;
+    }
+    
+    getResultDataInfo(pSchema->type, pSchema->bytes, functionId, 0, &pExpr->resType, &pExpr->resBytes,
+                      &inter, 0, false);
   }
 }
 
diff --git a/src/client/src/tscSecondaryMerge.c b/src/client/src/tscSecondaryMerge.c
index 219819a2b0a28201fe9f28d979a57131f34e667a..57375648770d6083fedf01343de9c5d6fd9acc49 100644
--- a/src/client/src/tscSecondaryMerge.c
+++ b/src/client/src/tscSecondaryMerge.c
@@ -689,7 +689,7 @@ int32_t tscLocalReducerEnvCreate(SSqlObj *pSql, tExtMemBuffer ***pMemBuffer, tOr
 
     SSchema *p1 = tscGetTableColumnSchema(pTableMetaInfo->pTableMeta, pExpr->colInfo.colIndex);
 
-    int16_t inter = 0;
+    int32_t inter = 0;
     int16_t type = -1;
     int16_t bytes = 0;
 
diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index 4e34c1028b001d4e4a04a3e05e9ec79ae5a2d2e1..99163ba3270329e6e0bc06963d51c247e689fdf9 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -1084,7 +1084,7 @@ int32_t tscLaunchJoinSubquery(SSqlObj *pSql, int16_t tableIndex, SJoinSupporter
         
         int16_t bytes = 0;
         int16_t type = 0;
-        int16_t inter = 0;
+        int32_t inter = 0;
         
         getResultDataInfo(s.type, s.bytes, TSDB_FUNC_TID_TAG, 0, &type, &bytes, &inter, 0, 0);
         
diff --git a/src/inc/taosmsg.h b/src/inc/taosmsg.h
index b6d45c209176cab8d06cb58b999b136f61b12ac5..da6d0847ec1beacefe4e62d384f5a8bbcee26b1f 100644
--- a/src/inc/taosmsg.h
+++ b/src/inc/taosmsg.h
@@ -370,7 +370,7 @@ typedef struct SExprInfo {
   struct tExprNode* pExpr;
   int16_t     bytes;
   int16_t     type;
-  int16_t     interBytes;
+  int32_t     interBytes;
 } SExprInfo;
 
 typedef struct SColumnFilterInfo {
diff --git a/src/query/inc/tsqlfunction.h b/src/query/inc/tsqlfunction.h
index e348ceb177a6113517a320026718bf2b3202c809..22d126f7a2cd46e9dff726916d9d61e3d879a5a3 100644
--- a/src/query/inc/tsqlfunction.h
+++ b/src/query/inc/tsqlfunction.h
@@ -217,7 +217,7 @@ typedef struct SQLAggFuncElem {
 #define GET_RES_INFO(ctx) ((ctx)->resultInfo)
 
 int32_t getResultDataInfo(int32_t dataType, int32_t dataBytes, int32_t functionId, int32_t param, int16_t *type,
-                          int16_t *len, int16_t *interBytes, int16_t extLength, bool isSuperTable);
+                          int16_t *len, int32_t *interBytes, int16_t extLength, bool isSuperTable);
 
 #define IS_STREAM_QUERY_VALID(x)  (((x)&TSDB_FUNCSTATE_STREAM) != 0)
 #define IS_MULTIOUTPUT(x)         (((x)&TSDB_FUNCSTATE_MO) != 0)