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d8d8872414
DocumentViewSet.get_queryset() annotated num_notes via a LEFT JOIN to documents_note plus Count(), which requires the database to aggregate every matching document's note count before it can even sort or paginate the result -- on every list request, not just filtered ones. Switched to the same correlated-subquery pattern already used two lines above for effective_content (Subquery + OuterRef), which Django compiles to portable SQL across sqlite/postgresql/mariadb rather than a join-based aggregate. Benchmarked against a 100k synthetic document corpus (Postgres): the plain document list request dropped from ~2.2-2.4s to ~0.9-1.0s. Note that a separate, larger cost remains in the same queryset's plain .distinct() call, which still forces a full sort over every matching row regardless of this fix -- tracked separately, not addressed here. Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>