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added db query optimizations to playlists view, added caching

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This commit is contained in:
yonlu
2026-02-17 11:39:17 -05:00
parent 93679761af
commit 50718fd633
13 changed files with 542 additions and 110 deletions
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backend/database/sql/queries/playlists.sql
+30 -1
View File
@@ -47,12 +47,41 @@ FROM playlist_tracks pt
JOIN audio_files af ON pt.audio_file_id = af.id
LEFT JOIN recordings r ON af.recording_id = r.id
LEFT JOIN artist_credit ac ON r.artist_credit_id = ac.id
LEFT JOIN release_group_recordings rgr ON r.id = rgr.recording_id
LEFT JOIN (
SELECT recording_id, MIN(release_group_id) AS release_group_id
FROM release_group_recordings
GROUP BY recording_id
) rgr ON r.id = rgr.recording_id
LEFT JOIN release_groups rg ON rgr.release_group_id = rg.id
LEFT JOIN cover_art ca ON rg.cover_art_id = ca.id
WHERE pt.playlist_id = ?
ORDER BY pt.position;
-- name: GetAllPlaylistTracksWithMetadata :many
SELECT
pt.id,
pt.playlist_id,
pt.audio_file_id,
pt.position,
af.file_path,
af.length_milliseconds,
COALESCE(r.name, '') AS title,
COALESCE(ac.text, '') AS artist,
COALESCE(rg.name, '') AS album,
COALESCE(ca.file_path, '') AS cover_art_path
FROM playlist_tracks pt
JOIN audio_files af ON pt.audio_file_id = af.id
LEFT JOIN recordings r ON af.recording_id = r.id
LEFT JOIN artist_credit ac ON r.artist_credit_id = ac.id
LEFT JOIN (
SELECT recording_id, MIN(release_group_id) AS release_group_id
FROM release_group_recordings
GROUP BY recording_id
) rgr ON r.id = rgr.recording_id
LEFT JOIN release_groups rg ON rgr.release_group_id = rg.id
LEFT JOIN cover_art ca ON rg.cover_art_id = ca.id
ORDER BY pt.playlist_id, pt.position;
-- name: GetNextPlaylistTrackPosition :one
SELECT COALESCE(MAX(position), -1) + 1 AS next_position
FROM playlist_tracks WHERE playlist_id = ?;
backend/database/sql/schemas/indexes.sql
+32
View File
@@ -0,0 +1,32 @@
CREATE INDEX IF NOT EXISTS idx_playlist_tracks_playlist_id
ON playlist_tracks(playlist_id);
CREATE INDEX IF NOT EXISTS idx_playlist_tracks_audio_file_id
ON playlist_tracks(audio_file_id);
CREATE INDEX IF NOT EXISTS idx_audio_files_recording_id
ON audio_files(recording_id);
CREATE INDEX IF NOT EXISTS idx_recordings_artist_credit_id
ON recordings(artist_credit_id);
CREATE INDEX IF NOT EXISTS idx_release_group_recordings_recording_id
ON release_group_recordings(recording_id);
CREATE INDEX IF NOT EXISTS idx_release_group_recordings_release_group_id
ON release_group_recordings(release_group_id);
CREATE INDEX IF NOT EXISTS idx_release_groups_cover_art_id
ON release_groups(cover_art_id);
CREATE INDEX IF NOT EXISTS idx_release_groups_album_artist_credit_id
ON release_groups(album_artist_credit_id);
CREATE INDEX IF NOT EXISTS idx_queue_tracks_audio_file_id
ON queue_tracks(audio_file_id);
CREATE INDEX IF NOT EXISTS idx_artist_credit_artist_artist_id
ON artist_credit_artist(artist_id);
CREATE INDEX IF NOT EXISTS idx_artist_credit_artist_credit_id
ON artist_credit_artist(credit_id);
backend/database/sql/sqlcgen/playlists.sql.go
+78 -1
View File
@@ -67,6 +67,79 @@ func (q *Queries) DeletePlaylist(ctx context.Context, id int64) error {
return err
}
const getAllPlaylistTracksWithMetadata = `-- name: GetAllPlaylistTracksWithMetadata :many
SELECT
pt.id,
pt.playlist_id,
pt.audio_file_id,
pt.position,
af.file_path,
af.length_milliseconds,
COALESCE(r.name, '') AS title,
COALESCE(ac.text, '') AS artist,
COALESCE(rg.name, '') AS album,
COALESCE(ca.file_path, '') AS cover_art_path
FROM playlist_tracks pt
JOIN audio_files af ON pt.audio_file_id = af.id
LEFT JOIN recordings r ON af.recording_id = r.id
LEFT JOIN artist_credit ac ON r.artist_credit_id = ac.id
LEFT JOIN (
SELECT recording_id, MIN(release_group_id) AS release_group_id
FROM release_group_recordings
GROUP BY recording_id
) rgr ON r.id = rgr.recording_id
LEFT JOIN release_groups rg ON rgr.release_group_id = rg.id
LEFT JOIN cover_art ca ON rg.cover_art_id = ca.id
ORDER BY pt.playlist_id, pt.position
`
type GetAllPlaylistTracksWithMetadataRow struct {
ID int64
PlaylistID int64
AudioFileID int64
Position int64
FilePath string
LengthMilliseconds int64
Title string
Artist string
Album string
CoverArtPath string
}
func (q *Queries) GetAllPlaylistTracksWithMetadata(ctx context.Context) ([]GetAllPlaylistTracksWithMetadataRow, error) {
rows, err := q.db.QueryContext(ctx, getAllPlaylistTracksWithMetadata)
if err != nil {
return nil, err
}
defer rows.Close()
var items []GetAllPlaylistTracksWithMetadataRow
for rows.Next() {
var i GetAllPlaylistTracksWithMetadataRow
if err := rows.Scan(
&i.ID,
&i.PlaylistID,
&i.AudioFileID,
&i.Position,
&i.FilePath,
&i.LengthMilliseconds,
&i.Title,
&i.Artist,
&i.Album,
&i.CoverArtPath,
); err != nil {
return nil, err
}
items = append(items, i)
}
if err := rows.Close(); err != nil {
return nil, err
}
if err := rows.Err(); err != nil {
return nil, err
}
return items, nil
}
const getAllPlaylists = `-- name: GetAllPlaylists :many
SELECT id, name, created_at, updated_at FROM playlists ORDER BY updated_at DESC
`
@@ -188,7 +261,11 @@ FROM playlist_tracks pt
JOIN audio_files af ON pt.audio_file_id = af.id
LEFT JOIN recordings r ON af.recording_id = r.id
LEFT JOIN artist_credit ac ON r.artist_credit_id = ac.id
LEFT JOIN release_group_recordings rgr ON r.id = rgr.recording_id
LEFT JOIN (
SELECT recording_id, MIN(release_group_id) AS release_group_id
FROM release_group_recordings
GROUP BY recording_id
) rgr ON r.id = rgr.recording_id
LEFT JOIN release_groups rg ON rgr.release_group_id = rg.id
LEFT JOIN cover_art ca ON rg.cover_art_id = ca.id
WHERE pt.playlist_id = ?