Merge pull request #12408 from taosdata/feature/tq

enh: print_row str ends with 0

example/src/tmq.c

@@ -22,7 +22,7 @@
 static int  running = 1;
 static void msg_process(TAOS_RES* msg) {
   char buf[1024];
-  memset(buf, 0, 1024);
+  /*memset(buf, 0, 1024);*/
   printf("topic: %s\n", tmq_get_topic_name(msg));
   printf("vg: %d\n", tmq_get_vgroup_id(msg));
   while (1) {

source/client/src/clientMain.c

@@ -303,6 +303,7 @@ int taos_print_row(char *str, TAOS_ROW row, TAOS_FIELD *fields, int num_fields)
         break;
     }
   }
+  str[len] = 0;
 
   return len;
 }