On 5 Mar '08, at 9:15 AM, I. Savant wrote:

 Okay, well that sucks. So now the question is this: does Core Data
implicitly run VACUUM? If so, when? How often? Unfortunately googling
and archive-searching did not produce any obvious answers to this
particular question. My guess is that the answer is, "Yes, at every
save,"

I don't know the answer; but it probably doesn't vacuum at every save. Vacuuming can be quite slow if the database is at all large, especially if there's already a lot of disk I/O going on. (The vacuum algorithm has to read and write every page of the database.)

—Jens

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