bvandeusen
40384cc05e
Milestone #160 Opt 2 (era half). A third taste facet alongside artists + genre tags: signed weights over decade buckets ("1990s") derived from albums.release_date, rebuilt daily and scored into the taste match. - Migration 0045: taste_profile_eras table (mirrors taste_profile_tags) + taste_tuning.era_scale column (DEFAULT 0.5). - Build side (internal/taste): Config.EraScale ([0,1] damper, mirrors EnrichedTagScale), accumulate folds each play/like's decade at base*EraScale, persist atomic-replaces the era rows. - Scorer (internal/recommendation): TasteProfile gains an era term (own tanh scale + additive 0.15 share so it never weakens the existing artist/tag signal when a track is undated); candidate queries return album release_date; decadeOf mirrors the builder helper. - Tuning lab: era_scale threaded through recsettings + admin API + web card (auto-renders the new row) + Go/web tests. Mood facet deferred to #1534 (partial enrichment coverage + needs candidate-side enriched-tag loading). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
88 lines
3.0 KiB
SQL
88 lines
3.0 KiB
SQL
-- Taste profile (#796 phase 1). The daily build computes signed artist/tag
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-- weights in Go (graded engagement + decay + like bonus) and atomic-replaces
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-- them here. Read queries serve "top taste" lookups (used in phase 2).
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-- name: ListPlayEngagementInputsForUser :many
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-- One row per play in the decay-relevant window. completion is the play's
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-- completion ratio (precomputed column when present, else duration_played /
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-- track duration, clamped to [0,1]); age_days drives the time-decay. Genre
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-- is split into tags in Go; release_date derives the decade for the era
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-- facet (#1530). Quarantined tracks are excluded.
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SELECT
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t.id AS track_id,
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t.artist_id,
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t.genre,
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a.release_date,
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LEAST(GREATEST(
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COALESCE(pe.completion_ratio,
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pe.duration_played_ms::float8 / NULLIF(t.duration_ms, 0),
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0), 0), 1)::float8 AS completion,
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(EXTRACT(epoch FROM now() - pe.started_at) / 86400.0)::float8 AS age_days
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FROM play_events pe
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JOIN tracks t ON t.id = pe.track_id
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JOIN albums a ON a.id = t.album_id
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WHERE pe.user_id = $1
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AND pe.started_at > now() - ($2::float8 * INTERVAL '1 day')
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AND NOT EXISTS (
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SELECT 1 FROM lidarr_quarantine q
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WHERE q.user_id = $1 AND q.track_id = t.id
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);
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-- name: ListLikedTrackTasteInputsForUser :many
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-- (track_id, artist_id, genre, release_date) for each track the user has
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-- explicitly liked. Feeds the track-like bonus into the liked track's artist,
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-- tags, and era (#1530); track_id keys the enriched track_tags lookup (#1490).
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SELECT t.id AS track_id, t.artist_id, t.genre, a.release_date
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FROM general_likes gl
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JOIN tracks t ON t.id = gl.track_id
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JOIN albums a ON a.id = t.album_id
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WHERE gl.user_id = $1;
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-- name: ListLikedArtistIDsForUser :many
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-- Artists the user has explicitly liked; feeds the artist-like bonus.
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SELECT artist_id FROM general_likes_artists WHERE user_id = $1;
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-- name: DeleteTasteProfileArtistsForUser :exec
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DELETE FROM taste_profile_artists WHERE user_id = $1;
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-- name: InsertTasteProfileArtist :exec
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INSERT INTO taste_profile_artists (user_id, artist_id, weight)
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VALUES ($1, $2, $3);
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-- name: DeleteTasteProfileTagsForUser :exec
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DELETE FROM taste_profile_tags WHERE user_id = $1;
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-- name: InsertTasteProfileTag :exec
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INSERT INTO taste_profile_tags (user_id, tag, weight)
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VALUES ($1, $2, $3);
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-- name: ListTasteProfileArtistsForUser :many
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-- Top-weighted taste artists (phase-2 consumption + tests).
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SELECT artist_id, weight
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FROM taste_profile_artists
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WHERE user_id = $1
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ORDER BY weight DESC
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LIMIT $2;
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-- name: ListTasteProfileTagsForUser :many
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SELECT tag, weight
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FROM taste_profile_tags
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WHERE user_id = $1
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ORDER BY weight DESC
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LIMIT $2;
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-- name: DeleteTasteProfileErasForUser :exec
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DELETE FROM taste_profile_eras WHERE user_id = $1;
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-- name: InsertTasteProfileEra :exec
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INSERT INTO taste_profile_eras (user_id, era, weight)
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VALUES ($1, $2, $3);
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-- name: ListTasteProfileErasForUser :many
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-- Top-weighted taste eras (#1530); consumed by the scorer's era term.
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SELECT era, weight
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FROM taste_profile_eras
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WHERE user_id = $1
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ORDER BY weight DESC
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LIMIT $2;
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