Hello, All.
Could anybody explain me the purpose of following piece of code in
VIO_proc_merge_save_point(), please?
> if ( (sav_point = transaction->tra_save_free) ) {
> transaction->tra_save_free = sav_point->sav_next;
> }
> else {
> sav_point = FB_NEW(*transaction->tra_pool) Savepoint();
> }
> sav_point->sav_next = sav_next;
> sav_point->sav_number = sav_number;
> *sav_point_list = sav_point;
> sav_point_list = &sav_point->sav_next;
My best guess is that this routine is called on SUSPEND, so all already
happened
changes must be merged to procedure savepoint because they must not be
undonable, but
stack has to be preserved because nested DML will continue working.
--
WBR, SD.
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