The database went up by 1MB on disk but I saved over 1MB on the zip file by dropping the page_size down from 1024 to 512. That's a slight improvement. Earlier when I said the footprint was the issue, I really meant the download footprint.
LZMA is also 500KB smaller @ 11.6MB (why oh why isn't there a working LZMA implementation for Windows Phone). Still not a patch on the text data squeezing down to <7MB. Nothing else in the pragma list looked immediately interesting. L On 5 March 2012 20:16, Larry Knibb <larry.kn...@gmail.com> wrote: > Thanks for the quick reply, Simon. I was rather hoping there might be > some efficiency tweaks I can do to the db file (e.g. more explicit > creation statements, or postprocessing) instead of getting into custom > sqlite builds. > > I was on the bus when I wrote my earlier mail but at home now I've > tried VACUUM. Unfortunately it only shaves ~250KB off the ~41MB > database. > > Open to other ideas? > > Can I limit possible string lengths for the TEXT fields or is it > already using VARCHAR internally? If so, any idea where all the space > is being used? Can I profile the tables to learn how much data they > hold individually or the efficiency of that storage? > > L > > On 5 March 2012 19:53, Simon Slavin <slav...@bigfraud.org> wrote: >> >> On 5 Mar 2012, at 10:59am, Larry Knibb <larry.kn...@gmail.com> wrote: >> >>> I'm developing a mobile application which downloads my database so smallest >>> possible database size (i.e. on-disk/footprint) is important. >>> >>> Currently my database is 41.5MB with indexes and to reduce the download I'm >>> zipping it with max. compression Deflate down to 18.4MB. >>> >>> I noticed I can get it down to 12.1MB using LZMA compression but >>> unfortunately there's no LZMA library for Windows Phone yet... but anyway. >> >> Would this be useful ? I think you might have to be using the SQLite API >> calls rather than a third-party extra layer. >> >> <http://www.hwaci.com/sw/sqlite/cerod.html> >> >> Simon. >> _______________________________________________ >> 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
