EatonMore fun facts: iPhoto also has a table full of precomputed photo attributes based on its image recognition algorithms: Every photo gets a ‘PLEASANTREFLECTION’ score, a ‘TASTEFULLYBLURRED’ score, a ‘HARMONOUSCOLORS’ score, and so on. They're stored in the ZCOMPUTEDATTRIBUTES table, FWIW — and every one of its metadata tables shares the Z_PK property for joins.
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