Hi, > > It is my understanding that Perl is not extremely aware of alignment. > > For instance if I want to modify the checksum of the file and the > > offset of the checksum is let's say 200 bytes on one platform, 204 on > > another and 208 on a third, pack/unpack will not help me. > > > > Or did I miss something? > > You have to specify alignment manually using the `x![$type]` notation. > I actually wrote up a pack template for the entire control file > (assuming all types have alignof==sizeof), and it seems to work. Run > the attached with a Postgres 17 data directory as the arguemnt, and it > should show all the fields.
Oh that's neat. Thanks for sharing! -- Best regards, Aleksander Alekseev
