-- +goose Up-- +goose StatementBegin-- Add indexes for MBID fields to improve lookup performance-- Artists tablecreate index if not exists artist_mbz_artist_idon artist (mbz_artist_id);-- Albums tablecreate index if not exists album_mbz_album_idon album (mbz_album_id);-- Media files tablecreate index if not exists media_file_mbz_release_track_idon media_file (mbz_release_track_id);-- +goose StatementEnd-- +goose Down-- +goose StatementBegin-- Remove MBID indexesdrop index if exists artist_mbz_artist_id;drop index if exists album_mbz_album_id;drop index if exists media_file_mbz_release_track_id;-- +goose StatementEnd