wont hurt. data.db is just styles and stuff. library.db is for all image edits, collections etc. just look at it’s sizes (eg: darktable: periodic database maintenance? - #24 by gadolf) library.db is ~80 MB, when data.db is mere 200kb 
wont hurt. data.db is just styles and stuff. library.db is for all image edits, collections etc. just look at it’s sizes (eg: darktable: periodic database maintenance? - #24 by gadolf) library.db is ~80 MB, when data.db is mere 200kb