SQL audit displays the original SQL of the PS statement execution.

src/sql/ob_sql.cpp

@@ -2388,6 +2388,7 @@ int ObSql::handle_ps_execute(const ObPsStmtId client_stmt_id,
     } else {
       const ObString &sql = !ps_info->get_no_param_sql().empty() ? ps_info->get_no_param_sql() : ps_info->get_ps_sql();
       context.cur_sql_ = sql;
+      context.raw_sql_ = ps_info->get_ps_sql();
 #ifndef NDEBUG
       LOG_INFO("Begin to handle execute statement", "sess_id", session.get_sessid(),
                "proxy_sess_id", session.get_proxy_sessid(), K(sql));