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07980af10c
The listing still read every channel row (for the summary columns) and every download row of the listed Collections (for the minimum frequency). Both tables store yt-dlp info_json, so rows are tens of KB and each sits on its own scattered page; selecting fewer columns did not help because the seek per row is the cost. From a cold disk cache that was 5 s per table, 10+ s total, on a large library. Two covering indexes, channel (collection_id, video_count, total_size) and download (collection_id, frequency), answer both queries without touching a row. The listing no longer loads Download objects at all; it computes min_download_frequency with one grouped query and drops the unused `downloads` array from listing rows (the detail endpoints keep it; the list views only read min_download_frequency). Adds a models-vs-migrations test (alembic check) so an index or column added to a model without a migration, or vice versa, fails the suite. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> |
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| docs | ||
| flasher | ||
| inventory | ||
| map | ||
| videos | ||
| zim | ||
| __init__.py | ||