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SELECT a.cpe_id,
a.cpe23,
COALESCE(c.titles, '[]') AS titles,
COALESCE(d.refs, '[]') AS refs,
b.rank
-- find matching cpes
FROM cpes a
JOIN (
-- there can be multiple matching references for a given
-- CPE, so use MIN() to limit the match to the most
-- "relevant", according to bm25()
SELECT cpe_id,
MIN(rank) AS rank
FROM cpe_fts_refs
WHERE cpe_fts_refs MATCH :q
GROUP BY cpe_id
) b ON (b.cpe_id = a.cpe_id)
-- get all titles, grouped by cpe
LEFT JOIN (
SELECT cpe_id,
json_group_array(json_object(
'lang', lang,
'text', val
)) AS titles
FROM cpe_titles
GROUP BY cpe_id
) c ON (c.cpe_id = b.cpe_id)
-- get all refs, grouped by cpe
LEFT JOIN (
SELECT cpe_id,
json_group_array(json_object(
'href', href,
'text', val
)) AS refs
FROM cpe_refs
GROUP BY cpe_id
) d ON (d.cpe_id = b.cpe_id)
-- order by rank
ORDER BY b.rank
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