Fulltext søgning over flere tables

Hey

Kan man ikke bruge flere tables i en fulltext søgning:

SELECT
  title, 
  MATCH (track.title, contributor.displayName) AGAINST ('live') AS score,
  contributor.displayName
FROM track
LEFT JOIN
  trackContributor ON trackContributor.productId = track.productId AND trackContributor.role = 'DisplayArtist'
LEFT JOIN
  contributor ON contributor.id = trackContributor.id
WHERE
  MATCH (track.title, contributor.displayName) AGAINST  ('live') LIMIT 20


= fejl 1210 - Incorrect arguments to MATCH