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Updated Understanding the Photos database (markdown)

Rhet Turnbull
2020-05-09 10:46:51 -05:00
parent 09acc14b8e
commit 38aeae7ab0
1 changed files with 15 additions and 0 deletions
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Understanding-the-Photos-database.md

@@ -17,3 +17,18 @@ In Photos 5.0, this file also exists but contains only metadata data about the l
~/Pictures/Photos Library.photoslibrary/database/Photos.sqlite ~/Pictures/Photos Library.photoslibrary/database/Photos.sqlite
osxphotos reads `photos.db` (which is present in all versions of Photos) then reads `Photos.sqlite` if the library is a Photos 5 library.
To read the library version, osxphotos PhotosDB calls `self._get_db_version()` which queries `photos.db` using the following sql statement to find the library version:
SELECT value from LiGlobals where LiGlobals.keyPath is 'libraryVersion'
The version is a 4-digit integer, the first digit of which signifies which version of Photos created the library. The versions I've been able to determine from testing are:
* Photos 2.0 (10.12.6) == 2622
* Photos 3.0 (10.13.6) == 3301
* Photos 4.0 (10.14.5) == 4016
* Photos 4.0 (10.14.6) == 4025
* Photos 5.0 (10.15.0) == 6000