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SELECT
rank,
q AS query,
SOURCE,
id,
ts_headline('dutch', title, q) AS title,
ts_headline('dutch', text, q) AS text

FROM (

SELECT
ts_rank_cd(fts, q) AS rank,
sources.SECTION AS SOURCE,
documents.id,
title,
text,
q

FROM
documents,
sources,
to_tsquery('dutch', 'Bauchschmerzen') q

WHERE
sources.id=documents.source_id AND
documents.fts @@ q
AND documents.LANGUAGE='de'
ORDER BY rank DESC
LIMIT 20
) AS foo