44 lines
2 KiB
MySQL
44 lines
2 KiB
MySQL
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-- 985_tracks_storage_backend.sql
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-- v1.0.8 Phase 0 (MinIO upload migration) — prepare tracks schema for
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-- multi-backend storage (local FS vs S3/MinIO). Schema-only change; Phase 1
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-- will wire TrackService.UploadTrack() to actually route writes via the
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-- storage_backend column.
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--
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-- Context: FUNCTIONAL_AUDIT §4 item 2 flagged "stockage local disque only"
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-- as a multi-pod prod blocker. The S3 client exists but is never called on
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-- the upload path. This migration makes it possible to gradually migrate
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-- uploads without a big-bang switchover.
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--
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-- Columns added:
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-- storage_backend — VARCHAR(16) NOT NULL DEFAULT 'local'
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-- Which storage impl wrote this track. 'local' = file_path points at
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-- veza-backend-api/uploads/tracks/... . 's3' = storage_key holds the
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-- S3 object key inside config.S3Bucket. Check constraint limits values.
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--
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-- storage_key — VARCHAR(512) NULL
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-- When storage_backend='s3', this is the S3 object key (e.g.
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-- "tracks/<userID>/<uuid>.<ext>"). NULL when storage_backend='local'
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-- (file_path carries the info in that case — kept for back-compat).
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--
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-- Index:
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-- idx_tracks_storage_backend_s3 — partial index on s3-backed rows only.
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-- Useful for the migration script (Phase 3) which sweeps local→s3 and
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-- for monitoring queries (what % of tracks already migrated).
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ALTER TABLE public.tracks
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ADD COLUMN storage_backend VARCHAR(16) NOT NULL DEFAULT 'local'
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CHECK (storage_backend IN ('local', 's3')),
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ADD COLUMN storage_key VARCHAR(512);
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-- Partial index: only indexes s3-backed rows (majority stay 'local' during
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-- migration, so full index would be wasteful).
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CREATE INDEX idx_tracks_storage_backend_s3
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ON public.tracks(storage_backend)
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WHERE storage_backend = 's3';
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COMMENT ON COLUMN public.tracks.storage_backend IS
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'Storage impl that owns the file: local (disk) or s3 (MinIO/S3). v1.0.8 multi-backend prep.';
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COMMENT ON COLUMN public.tracks.storage_key IS
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'S3 object key when storage_backend=s3. NULL when storage_backend=local (file_path carries the info).';
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