Mangling data with sqlite on Android

Oof! I still haven’t recovered from the holidays.

I nearly have LogMyLife in a presentable state, but I just have this one last nit to pick: numbers don’t seem to get recorded the way I expect. I’m using a numerical column (with the intention of using the DB to manipulate numerical values later) but they weren’t storing with the precision I expected.

To explore this, I created a demo project on github. It’s a simple Android app that lets you try out storing values in different ways. It’s interesting for exploring edge cases. I’d like to say more about this but it’s late… maybe later. One answer I was looking for: when you store the value 1.23456789 into a numeric column, if you retrieve it as a String, you get 1.23457; as a Float, 1.2345679; if you retrieve it as a Double you get the full precision. When retrieved as a String it’s getting truncated with only six digits of precision – why?