refs: MW-322 * generating fake trx id for CTAS, requires trx_sys mutex...

refs: MW-322 * generating fake trx id for CTAS, requires trx_sys mutex protection to be safe for concurrent CTAS processors

storage/innobase/handler/ha_innodb.cc

@@ -17945,7 +17945,7 @@ wsrep_fake_trx_id(
 	mutex_enter(&trx_sys->mutex);
 	trx_id_t trx_id = trx_sys_get_new_trx_id();
 	mutex_exit(&trx_sys->mutex);
-
+	WSREP_DEBUG("innodb fake trx id: %lu thd: %s", trx_id, wsrep_thd_query(thd));
 	(void *)wsrep_ws_handle_for_trx(wsrep_thd_ws_handle(thd), trx_id);
 }
 

storage/xtradb/handler/ha_innodb.cc

@@ -19247,7 +19247,7 @@ wsrep_fake_trx_id(
 	mutex_enter(&trx_sys->mutex);
 	trx_id_t trx_id = trx_sys_get_new_trx_id();
 	mutex_exit(&trx_sys->mutex);
-
+	WSREP_DEBUG("innodb fake trx id: %lu thd: %s", trx_id, wsrep_thd_query(thd));
 	(void *)wsrep_ws_handle_for_trx(wsrep_thd_ws_handle(thd), trx_id);
 }