On Sat, Feb 01, 2020 at 07:02:38PM +0100, Guillem Jover wrote: > On Thu, 2019-11-28 at 22:41:44 +0100, Bill Allombert wrote: > > On Thu, Nov 28, 2019 at 08:55:00PM +0000, Niels Thykier wrote: > > > While it would take a bit of restructuring / refactoring, I think it > > > would be possible to use a single dpkg-query for everything and still be > > > able to process the data in a "streaming" fashion. > > > > Yes this could work, however this is assuming that dpkg-query is not > > allocating everything in memory at once. > > dpkg-query will load everything in memory, in the same way it does > while doing a «dpkg --install» or similar. The key here is that these > files are just going to disappear in an inminent future, and anything > relying on them will just break. Also dpkg will be moving into keeping > the entire package filesystem knowledge in a single database file anyway.
A database file normally allows to extract fields without having the whole database in memory. dpkg should provide an interface to that. Cheers, -- Bill. <[email protected]> Imagine a large red swirl here.
