> On Jun 19, 2015, at 3:32 PM, 'Walter R. Ojeda Valiente' > sistemas2000profesio...@gmail.com [firebird-support] > <firebird-support@yahoogroups.com> wrote: > > > After a cycle backup/restore: the restored database will have all the rows > with the new domain? > > All columns with domain D_CURRENCY that were created with DECIMAL(9, 2) now > will be DECIMAL(18, 2) ?
Yes. Gbak is really an unload/recreate/reload. A newly restored database will have all records at the same format version. The format version number is a single byte, so it's possible to exhaust the format version numbers by altering a table repeatedly (that's a hedge because I don't remember if the byte is treated as signed). A gbak backup/restore resets the format version numbers. (Again, a hedge because it may be necessary for gbak to alter tables when there are cross references, so the restore may not create exclusively format version 1 records). Good luck, Ann
