On Wed, Apr 20, 2016 at 10:36 AM, Cecil Westerhof <cldwesterhof at gmail.com>
wrote:

> I am baffled. Still DELETE before DROP is a lot more efficient. And it
> looks that it is not bothered when other programs are running (most of
> the time). I would think that a DROP should take the least time:
>

I agree. That's weird. Needs investigating indeed.


> Also: I understand that SECURE_DELETE=1 takes more time, but the
> difference seems excessive. What could be happening here?
>

Secure delete is basically writing to the disk several times, with random
data.
>From [1], it appears to be between 1x and 35x times. Don't know how SQLite
does secure-delete. --DD

[1]
http://www.howtogeek.com/72130/learn-how-to-securely-delete-files-in-windows/

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