Nano SD Database rebuild time

[xcom]

I have four years worth of data and somebody started a database rebuild.... It rebuilds the internal data sensors in less than a second and now is on the first weather sensor. It has been one full day and is not finish with the first sensor. Does this mean that for 35 sensors I am looking at roughly a few months before is done?

Can this be terminated without corrupting the database?

[ConligWX]

just curious, do you not backup the database one at least a daily basis?

there is a script to do this in the templates folder if you didn't know