chore: initial public commit

db/migrations/old/20250612_refactor_alias.sql

@@ -0,0 +1,81 @@
+-- +goose Up
+-- +goose StatementBegin
+
+-- Step 1: Add the column as nullable initially
+ALTER TABLE artist_aliases
+ADD COLUMN is_primary boolean;
+
+-- Step 2: Set it to true if alias matches artist name, false otherwise
+UPDATE artist_aliases aa
+SET is_primary = (aa.alias = a.name)
+FROM artists a
+WHERE aa.artist_id = a.id;
+
+-- Step 3: Make the column NOT NULL
+ALTER TABLE artist_aliases
+ALTER COLUMN is_primary SET NOT NULL;
+
+-- Step 1: Add the column as nullable initially
+ALTER TABLE release_aliases
+ADD COLUMN is_primary boolean;
+
+-- Step 2: Set is_primary to true if alias matches release title, false otherwise
+UPDATE release_aliases ra
+SET is_primary = (ra.alias = r.title)
+FROM releases r
+WHERE ra.release_id = r.id;
+
+-- Step 3: Make the column NOT NULL
+ALTER TABLE release_aliases
+ALTER COLUMN is_primary SET NOT NULL;
+
+-- Step 1: Create the table
+CREATE TABLE track_aliases (
+    track_id    INTEGER NOT NULL REFERENCES tracks(id) ON DELETE CASCADE,
+    alias       TEXT    NOT NULL,
+    is_primary  BOOLEAN NOT NULL,
+    source      TEXT    NOT NULL,
+    PRIMARY KEY (track_id, alias)
+);
+
+-- Step 2: Insert canonical titles from the tracks table
+INSERT INTO track_aliases (track_id, alias, is_primary, source)
+SELECT
+    id,
+    title,
+    TRUE,
+    'Canonical'
+FROM tracks;
+
+ALTER TABLE artists DROP COLUMN IF EXISTS name;
+ALTER TABLE tracks DROP COLUMN IF EXISTS title;
+ALTER TABLE releases DROP COLUMN IF EXISTS title;
+
+CREATE VIEW IF NOT EXISTS artists_with_name AS
+SELECT
+    a.*,
+    aa.alias AS name
+FROM artists a
+JOIN artist_aliases aa ON aa.artist_id = a.id
+WHERE aa.is_primary = TRUE;
+
+CREATE VIEW IF NOT EXISTS releases_with_title AS
+SELECT
+    r.*,
+    ra.alias AS title
+FROM releases r
+JOIN release_aliases ra ON ra.release_id = r.id
+WHERE ra.is_primary = TRUE;
+
+CREATE VIEW IF NOT EXISTS tracks_with_title AS
+SELECT
+    t.*,
+    ta.alias AS title
+FROM tracks t
+JOIN track_aliases ta ON ta.track_id = t.id
+WHERE ta.is_primary = TRUE;
+
+CREATE INDEX ON release_aliases (release_id) WHERE is_primary = TRUE;
+CREATE INDEX ON track_aliases (track_id) WHERE is_primary = TRUE;
+
+-- +goose StatementEnd