diff --git a/src/common/inc/tname.h b/src/common/inc/tname.h
index b651913d7384bac75eea7c9644b501b781c47e33..465b298973cbccdf380150bdce46a09b56594801 100644
--- a/src/common/inc/tname.h
+++ b/src/common/inc/tname.h
@@ -33,7 +33,7 @@ typedef struct SDataStatis {
 
 typedef struct SColumnInfoData {
   SColumnInfo info;
-  void* pData;    // the corresponding block data in memory
+  char* pData;    // the corresponding block data in memory
 } SColumnInfoData;
 
 typedef struct SResPair {
diff --git a/src/query/inc/qExecutor.h b/src/query/inc/qExecutor.h
index 6baf7549ea8a09e9dd3f0646c59cc08bb9531768..001af0825e8da959c180464b8a11f049d550a2c7 100644
--- a/src/query/inc/qExecutor.h
+++ b/src/query/inc/qExecutor.h
@@ -234,7 +234,7 @@ typedef struct SQueryRuntimeEnv {
   SQuery*               pQuery;
   uint32_t              status;           // query status
   void*                 qinfo;
-  uint16_t              scanFlag;         // denotes reversed scan of data or not
+  uint8_t               scanFlag;         // denotes reversed scan of data or not
   void*                 pQueryHandle;
 
   int32_t               prevGroupId;      // previous executed group id