Thread: What a regex is
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Old 05-06-2010, 04:46 PM   #17
kovidgoyal
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Quote:
Originally Posted by Starson17 View Post
From reading very old threads, I believe the earliest versions of calibre stored ebooks as real BLOBs within the calibre database. From what I read, the change to pseudo-BLOBs stored in a computed directory path was made to improve performance.
Performance and also to allow easy differential backups of the calibre library over low bandwidth links.
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