maybe_persons.sql

WITH groups AS (
         SELECT DISTINCT ON (artist.id) artist.id, artist.name FROM
         artist
         JOIN l_artist_artist laa ON laa.entity1 = artist.id
         JOIN link on link.id = laa.link
         JOIN link_type on link_type.id = link.link_type
         WHERE artist.type IS DISTINCT FROM 1
         AND link_type.name IN ('member of band', 'collaboration', 'conductor position')
         AND link_type.entity_type0 = 'artist'
         AND link_type.entity_type1 = 'artist'),
     persons_entity0 AS (
         SELECT DISTINCT ON (artist.id) artist.id, artist.name FROM
         artist
         JOIN l_artist_artist laa ON laa.entity0 = artist.id
         JOIN link on link.id = laa.link
         JOIN link_type on link_type.id = link.link_type
         WHERE artist.type IS DISTINCT FROM 1
         AND link_type.name IN ('member of band', 'collaboration', 'voice actor', 'conductor position', 'is person', 'married', 'sibling', 'parent', 'involved with')
         AND link_type.entity_type0 = 'artist'
         AND link_type.entity_type1 = 'artist'),
     persons_entity1 AS (
         SELECT DISTINCT ON (artist.id) artist.id, artist.name FROM
         artist
         JOIN l_artist_artist laa ON laa.entity1 = artist.id
         JOIN link on link.id = laa.link
         JOIN link_type on link_type.id = link.link_type
         WHERE artist.type IS DISTINCT FROM 1
         AND link_type.name IN ('catalogued', 'is person', 'married', 'sibling', 'parent', 'involved with')
         AND link_type.entity_type0 = 'artist'
         AND link_type.entity_type1 = 'artist'),
     artists AS (
         SELECT DISTINCT ON (id) id, name FROM
             (SELECT * FROM persons_entity0
                  UNION
              SELECT * from persons_entity1) AS persons
          EXCEPT
              SELECT * from groups)
SELECT DISTINCT ON (artists.id) artists.id AS artist_id, row_number() OVER (ORDER BY musicbrainz_collate(name.name), artists.id)
    FROM artists
    JOIN artist_name AS name ON artists.name = name.id
    LIMIT 10;