You still have not explained what you think COW is and of what possible use it could be.
If you want a "snapshot + changes" then why not just enable WAL mode and disable checkpointing? -- The fact that there's a Highway to Hell but only a Stairway to Heaven says a lot about anticipated traffic volume. >-----Original Message----- >From: sqlite-users <sqlite-users-boun...@mailinglists.sqlite.org> On >Behalf Of Fredrik Larsen >Sent: Friday, 4 October, 2019 14:14 >To: SQLite mailing list <sqlite-users@mailinglists.sqlite.org> >Subject: Re: [sqlite] Copy-on-write VFS > >A file-system with COW support would work, but that is a big >dependency/constraint to bring into a project, and not always >possible/practical. A file based version (snapshot + changes) will be >more >practical and easier to manage, and also very doable IMHO. > >Anyway, I was just wondering if anyone else had explored this path. From >the feedback so far it seems not. > >Fredrik > >On Fri, Oct 4, 2019 at 3:23 PM test user <example.com.use...@gmail.com> >wrote: > >> Hello Fredrik, >> >> Why does it need to be part of a VFS instead of using a file system >with >> COW like ZFS? >> >> On Fri, 4 Oct 2019 at 12:18, Fredrik Larsen <frel...@gmail.com> wrote: >> >> > Hi >> > >> > A copy-on-write IO-path where data is split into static and dynamic >parts >> > (think snapshots for storage) would be very helpful for our project, >. >> This >> > would simplify backups, testing, moving data around in a multinode >> > environment, etc. >> > >> > Does something like this exist for sqlite? In my head this sounds >like an >> > relative easy feature to add as IO-stuff is already centralized in >the >> VFS >> > layer. Maybe a new COW-VFS? >> > >> > Fredrik >> > _______________________________________________ >> > sqlite-users mailing list >> > sqlite-users@mailinglists.sqlite.org >> > http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users >> > >> _______________________________________________ >> sqlite-users mailing list >> sqlite-users@mailinglists.sqlite.org >> http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users >> >_______________________________________________ >sqlite-users mailing list >sqlite-users@mailinglists.sqlite.org >http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
