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I Didn't Know Querysets Could do That
DjangoCon US 2016 · August 24, 2016
Django QuerySets provide far more than basic filtering: `annotate()` and `aggregate()` perform database-side calculations, while `select_related()` and `prefetch_related()` reduce repeated queries and `only()` and `defer()` limit fetched data. Charlie Guo explains how `Q` objects build complex AND/OR/NOT conditions, `F` expressions reference fields in database operations…