On Mar 23, 2012, at 9:56 AM, Robert Newson wrote:
> One way to avoid this is to
> use one file for documents and another for attachments. If TouchDB is
> effectively doing that, then that explains how you escape the issue.
Yes — TouchDB stores every attachment as a separate file. It’s a very simple content-indexed
store, where the files are named according to their SHA-1 digests. The document metadata*
contains attachment digests. (This then requires that compaction run a mark-sweep phase where
it collects the digests of all available attachments, then deletes attachment files that don’t
appear in that list.)
—Jens
* https://github.com/couchbaselabs/TouchDB-iOS/wiki/Object-Design-And-Schema
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