diff --git a/src/kit/CMakeLists.txt b/src/kit/CMakeLists.txt
index 66e8cf73988ab25db7544b9a52215d2279630c63..be36116f270b885331b41efda8581601a1fafeb2 100644
--- a/src/kit/CMakeLists.txt
+++ b/src/kit/CMakeLists.txt
@@ -4,3 +4,4 @@ PROJECT(TDengine)
 ADD_SUBDIRECTORY(shell)
 ADD_SUBDIRECTORY(taosdemo)
 ADD_SUBDIRECTORY(taosdump)
+ADD_SUBDIRECTORY(taospack)
diff --git a/src/kit/taospack/taospack.c b/src/kit/taospack/taospack.c
index 1160a7cb390745b087726654e796a0a71e96dc22..ddc173c5d12744a6f37fb053b59eef92f1db43a4 100644
--- a/src/kit/taospack/taospack.c
+++ b/src/kit/taospack/taospack.c
@@ -21,6 +21,7 @@
 
 #include "os.h"
 #include "tscompression.h"
+#include "tdataformat.h"
 
 #define FT_CNT  8
 
@@ -188,7 +189,19 @@ int memTest();
 //  main
 //
 int main(int argc, char *argv[]) {
-  printf("welcome to use taospack tools v1.1. \n");
+  printf("welcome to use taospack tools v1.1. sizeof(STColumn) = %lu\n", sizeof(STColumn));
+  
+  FILE* fp = fopen("./a.out", "w+");
+  STColumn* pcol = malloc(sizeof(STColumn));
+  pcol->type = 1;
+  pcol->colId = 2;
+  pcol->bytes = 3;
+  pcol->offset = 4;
+  fwrite(pcol, 1, sizeof(STColumn), fp);
+  fwrite("aaa", 1, 3, fp);
+  fclose(fp);
+  printf(" write a.out ok.\n");
+  return 0;
 
   if(argc == 3){
     char algo = 0;