[TD-1974] <fix>: fix big number result output issue.

src/kit/taosdemo/taosdemo.c

@@ -793,8 +793,8 @@ int main(int argc, char *argv[]) {
           (ntables * nrecords_per_table) / (t * nrecords_per_request),
           t * 1000);
 
-  printf("Spent %.4f seconds to insert %d records with %d record(s) per request: %.2f records/second\n",
-         t, ntables * nrecords_per_table, nrecords_per_request,
+  printf("Spent %.4f seconds to insert %lld records with %d record(s) per request: %.2f records/second\n",
+         t, (long long int)ntables * nrecords_per_table, nrecords_per_request,
          ntables * nrecords_per_table / t);
 
   for (int i = 0; i < threads; i++) {