Hi, I have implemented code in this plugin for a last_read_date column by reading the modify time of the metadata sidecar file and converting that to a date.
So now after I sync from my device, I can get calibre to sort my library by the last date I had each book open in koreader. Hooray!
My code is here:
https://github.com/Hyphen-ated/korea...c94813a718df06