should be it

external/duckdb/benchmark/ldbc/queries/bi-5.sql

@@ -0,0 +1,32 @@
+/* Q5. Most active Posters of a given Topic
+\set tag '\'Abbas_I_of_Persia\''
+ */
+WITH detail AS (
+SELECT cr.p_personid AS person_id
+     , count(DISTINCT r.m_messageid)  AS replyCount
+     , count(DISTINCT l.l_messageid||' '||l.l_personid) AS likeCount
+     , count(DISTINCT m.m_messageid)  AS messageCount
+     , null as score
+  FROM tag t
+     , message_tag pt
+     , message m LEFT JOIN message  r ON (m.m_messageid = r.m_c_replyof)
+              LEFT JOIN likes l ON (m.m_messageid = l.l_messageid)  -- l: likes to m
+     , person cr -- creator
+ WHERE 1=1
+    -- join
+   AND t.t_tagid = pt.mt_tagid
+   AND pt.mt_messageid = m.m_messageid
+   AND m.m_creatorid = cr.p_personid
+    -- filter
+   AND t.t_name = 'Abbas_I_of_Persia'
+ GROUP BY cr.p_personid
+)
+SELECT person_id AS "person.id"
+     , replyCount
+     , likeCount
+     , messageCount
+     , 1*messageCount + 2*replyCount + 10*likeCount AS score
+  FROM detail
+ ORDER BY score DESC, person_id
+ LIMIT 100
+;