On Tue, 10 Jan 2012 07:12:21 -0600, Tom Marchant wrote: >On Tue, 10 Jan 2012 00:11:52 -0500, Robert A. Rosenberg wrote: > >>To back out PTF2 >>ALL that is needed is to select Element A from PTF1 and ignore PTF1's >>Element B (since B is at PTF1 level even after PTF2 is APPLY'ed and >>thus there is no need to remove it to remove the PTF2 level of >>Element A). > >RESTORE does not take elements from PTFs. It takes them from the >DLIB zone. > That's exactly what Robert and I perceive as a deficiency in design.
>>This backtracking continues until you find a set of PTFs >>in the PRE/SUP chain that contains all the Elements (and only them) >>that is being backed out - These copies of the elements are what are >>used. > >Wrong again. There is no requirement that the elements that are >replaced during RESTORE come from a PTF that contains exactly the >same elements that are in the PTF being RESTOREd. > Read again. He didn't say "a PTF"; he said "a set of PTFs". >Evidently you have not performed RESTORE processing recently. I have. >Yesterday, in fact. > Got me there; for me it's been two days. His understanding is better than you credit him for; merely he doesn't accept IBM's unfriendly design as divinely ordained. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
