internal/dbstore/sql: populate cpe search sql

1 files changed, 69 insertions, 0 deletions

diff --git a/internal/dbstore/sql/old-cpe-search-all.sql b/internal/dbstore/sql/old-cpe-search-all.sql
new file mode 100644
index 0000000..18e286f
--- /dev/null
+++ b/internal/dbstore/sql/old-cpe-search-all.sql
@@ -0,0 +1,69 @@
+SELECT a.cpe_id,
+       a.cpe23,
+       COALESCE(c.titles, '[]') AS titles,
+       COALESCE(d.refs, '[]') AS refs,
+       b.rank
+
+  FROM cpes a
+  JOIN (
+    -- limit to "best" match (e.g., lowest rank) for given CPE
+    -- NOTE: it's not clear to me whether cross-index bm25()
+    -- comparisons are valid
+    SELECT a.cpe_id,
+           MIN(a.rank) AS rank
+
+      FROM (
+        -- find title matches
+        SELECT b.cpe_id,
+               a.rank AS rank
+
+          FROM cpe_titles_fts a
+          JOIN cpe_titles b
+            ON (b.cpe_title_id = a.rowid)
+
+         WHERE cpe_titles_fts MATCH :q
+
+        UNION ALL
+
+        -- find reference matches
+        SELECT b.cpe_id,
+               a.rank
+
+          FROM cpe_refs_fts a
+          JOIN cpe_refs b
+            ON (b.cpe_ref_id = a.rowid)
+
+         WHERE cpe_refs_fts MATCH :q
+      ) a
+
+     GROUP BY a.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