Files
Oxicloud/migrations/20260920000000_trash_drive_partial_indexes.sql
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Claude c51af68432 perf: round 10 — auth alloc purge, parent-herd batching, query-shape pack, NC 304s
Benchmark-gated (benches/ROUND10.md; every change carries a BEFORE/AFTER
harness with equivalence/safety gates — two designs were rejected or
rewritten by their own benches before adoption):

- Auth hot path: TokenClaims/CurrentUser display fields to Arc<str>, role
  to inline SmolStr end-to-end (Bearer, cookie, Basic-auth cache) — 4→1
  allocs per authenticated request, 3→0 per warm DAV request; JWT
  Encoding/Decoding/Validation built once.
- Cold shared-album herd: leader-inline parent batching in PgAclEngine
  (+ cascade try_get_with single-flight) — 100→2 parent queries per
  100-thumb cold herd, herd wall 1.9x, sequential + warm paths unchanged,
  all ROUND8/9 safety gates plus new herd-equivalence gates.
- Query-shape pack: share download double-fetch 2→1 (2.18x), contact-group
  COUNT(*) 14.9x, save_faces UNNEST 3.9x, playlist reorder UNNEST 63.7x
  (now atomic), search files∥folders join! 1.45x, move drive-lookup join!
  2.14x, trash partial (drive_id, trashed_at) indexes, CalDAV event-gate
  narrow read, favorites/recents binary-decode port, dead count_files
  removed.
- NC surface: preview + avatar honour If-None-Match (e2e: 5 KB and 197 KB
  → 0 bytes per revalidation), avatar WebP→PNG transcode memoised,
  PROPFIND/trashbin integer+date emits on stack formatters, folder-header
  enrichment join!, chunk-PUT retry stat folded into create_new open.
- common::fmt integer rendering rewritten on the std 2-digit LUT after the
  round's own bench caught the div-loop losing to to_string (16.1 ns vs
  22.5; speeds every prior-round call site).
- Micro-pack: WebDAV scope probe borrow-only, ShareService base_url
  snapshot, cookie_secure OnceLock, Arc'd AES-GCM cipher, stack request-id,
  tantivy analyzer clone dropped.
- SPA: search stale-guard + AbortController (10→1 completed round-trips,
  stale-clobber gone), getFolder in-flight dedup, gridColumns matchMedia
  hoist (10k→0 style reads).

Backend: cargo fmt + clippy -D warnings clean, 524 tests green.
Frontend: npm run check clean, 301 vitest green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018DdM7V7M3QPW7HEHg3gLov
2026-07-18 20:33:50 +00:00

31 lines
1.9 KiB
SQL

-- ════════════════════════════════════════════════════════════════════════════
-- Trash listing — partial (drive_id, trashed_at) indexes on trashed rows
-- ════════════════════════════════════════════════════════════════════════════
-- The trash surface (`TrashDbRepository::list_resources_paged`, `clear_trash`,
-- `get_all_trashed_file_ids`) filters `drive_id = ANY($drives) AND
-- is_trashed = TRUE` and keysets on `trashed_at` / `deletion_date`
-- (`deletion_date` = `trashed_at` + a constant retention interval, so it is
-- strictly monotonic in `trashed_at`).
--
-- The historical `idx_{files,folders}_trashed (user_id, is_trashed)` indexes
-- were dropped with the `user_id` columns (migration 20260904000000), leaving
-- only:
-- • `idx_{files,folders}_drive_id (drive_id)` — seeks the drive but then
-- filter-scans every LIVE row of the drive to find the trashed few;
-- • `idx_{files,folders}_trash_expiry (trashed_at) WHERE is_trashed` —
-- trashed-only but keyed for the GLOBAL retention sweeper; a per-drive
-- listing scans every tenant's trash and filters.
--
-- These partial indexes bound the read to exactly the caller's drives'
-- trashed rows, pre-ordered for the trashed_at/deletion_date keysets.
-- The retention sweeper keeps `idx_*_trash_expiry` (global, no drive
-- predicate). Benchmark: benches/ROUND10.md (trash-listing section).
CREATE INDEX IF NOT EXISTS idx_files_drive_trashed
ON storage.files (drive_id, trashed_at)
WHERE is_trashed;
CREATE INDEX IF NOT EXISTS idx_folders_drive_trashed
ON storage.folders (drive_id, trashed_at)
WHERE is_trashed;