MDEV-17144: Sample of spider_direct_sql cause crash

The crash occurs when the Spider node server attempts to create an error
message stating that the temporary table is not found.  The function to
create the error message is called with incorrect parameters.

I fixed the crash by correcting the incorrect parameter values.

Author:
  Jacob Mathew.

Reviewer:
  Kentoku Shiba.

Author: Jacob Mathew

storage/spider/spd_direct_sql.cc

@@ -1706,7 +1706,7 @@ long long spider_direct_sql_body(
         error_num = ER_SPIDER_UDF_TMP_TABLE_NOT_FOUND_NUM;
         my_printf_error(ER_SPIDER_UDF_TMP_TABLE_NOT_FOUND_NUM,
           ER_SPIDER_UDF_TMP_TABLE_NOT_FOUND_STR,
-          MYF(0), table_list.db, table_list.table_name);
+          MYF(0), table_list.db.str, table_list.table_name.str);
         goto error;
 #if MYSQL_VERSION_ID < 50500
 #else