bvandeusen
cb35133843
Append-only change log for library entities. Every mutation on artists/albums/tracks/likes/playlists/playlist_tracks will write a row in the same transaction as the mutation itself (wired in subsequent commits). Powers the Flutter delta-sync endpoint (#357). - 0025_library_changes migration (up + down) - internal/db/queries/library_changes.sql (Insert, GetSince, MaxCursor, MinCursor) - regenerated dbq from sqlc Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
24 lines
951 B
SQL
24 lines
951 B
SQL
-- Append-only change log for library entities. Every mutation on
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-- artists/albums/tracks/likes/playlists/playlist_tracks writes a row
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-- in the same transaction as the mutation itself. Powers the Flutter
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-- delta-sync endpoint (#357) — clients pass back the last-seen `id`
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-- as a cursor.
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--
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-- Retention: not capped here. If the table grows unbounded a follow-up
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-- adds a periodic compactor (collapse contiguous upserts on the same
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-- entity, drop pre-delete history). Cursor reset path (410) covers the
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-- compactor's edge.
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CREATE TABLE library_changes (
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id BIGSERIAL PRIMARY KEY,
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entity_type TEXT NOT NULL CHECK (entity_type IN (
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'artist', 'album', 'track', 'like_track', 'like_album', 'like_artist',
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'playlist', 'playlist_track'
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)),
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entity_id TEXT NOT NULL,
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op TEXT NOT NULL CHECK (op IN ('upsert', 'delete')),
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changed_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE INDEX idx_library_changes_id ON library_changes(id);
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