Note that importing the .dump file does effectively strip the indices and re-create them. In fact, there's a good chance that if you drop the indices, VACUUM, and then compress the database file, you'll find that it comes close to what you get with the .dump-then-compress values.
-scott On Mon, Mar 5, 2012 at 5:14 AM, Larry Knibb <larry.kn...@gmail.com> wrote: > Thanks Mario. I did think about stripping the indexes to cut down the > size. Recreating them on-device wouldn't be difficult (just > time-consuming) but offset against the smaller download it's possibly > worth it... although if I'm into partial on-device db creation then I > should really do some timing to see whether importing the whole .dump > file on the device is really that bad. Anyway, cheers for the advice. > > L > > On 5 March 2012 21:06, Mario Becroft <m...@becroft.co.nz> wrote: >> I don't know whether this is practical in your application, but if you >> want to reduce redundancy in the database file when downloading, the >> obvious thing is to leave off the indexes, and generate them once the >> file is downloaded onto the device. This way you'll have to download >> only the actual data set, and this combined with compression should be >> about as small as you can go without using domain-specific data >> compression or reformulating the data model. >> >> This is similar to loading from DML statements, which you don't want to >> do, but executing only the CREATE INDEX statements after downloading >> might be more acceptable than loading the entire data set. >> >> -- >> Mario Becroft <m...@becroft.co.nz> >> _______________________________________________ >> sqlite-users mailing list >> sqlite-users@sqlite.org >> http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
