[distances]

That's with a loadable JSON1 extension, which one won't find e.g. in Android.

Though checking now for this, someone has packaged a later version of SQLite with this extension [1]. I wonder if there is any possible performance advantage when using a system provided SQLite vs. one installed with the application?

[1] https://github.com/requery/sqlite-android

[distances]

Note to self: should have read the whole project description, there's a performance chapter answering this exact question.