Course Quality check query optimization #36112
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The CourseQualityView used to call edx-val's get_video_for_course(), which would return a fully serialized data structure that included all encodings and inefficiently serialized them with many n+1 queries. This is tolerable in a paginated web view, but not when pulling all of a large courses's videos at once. Making this change collapsed the number of queries for a large sample MIT course from over 3000 down to 1.
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Depends on openedx/edx-val#554