should be it

external/duckdb/benchmark/ldbc/queries/bi-1.sql

@@ -0,0 +1,36 @@
+/* Q1. Posting summary
+\set date '\'2011-07-21T22:00:00\''::timestamp
+ */
+WITH 
+  message_count AS (
+    SELECT 0.0 + count(*) AS cnt
+      FROM message
+     WHERE 1=1
+       AND m_creationdate < '2011-07-21T22:00:00'
+)
+, message_prep AS (
+    SELECT extract(year from m_creationdate) AS messageYear
+         , m_c_replyof IS NOT NULL AS isComment
+         , CASE
+             WHEN m_length <  40 THEN 0 -- short
+             WHEN m_length <  80 THEN 1 -- one liner
+             WHEN m_length < 160 THEN 2 -- tweet
+             ELSE                     3 -- long
+           END AS lengthCategory
+         , m_length
+      FROM message
+     WHERE 1=1
+       AND m_creationdate < '2011-07-21T22:00:00'
+       --AND m_content IS NOT NULL
+       AND m_ps_imagefile IS NULL -- FIXME CHECKME: posts w/ m_ps_imagefile IS NOT NULL should have m_content IS NULL
+)
+SELECT messageYear, isComment, lengthCategory
+     , count(*) AS messageCount
+     , avg(m_length) AS averageMessageLength
+     , sum(m_length) AS sumMessageLength
+     , count(*) / mc.cnt AS percentageOfMessages
+  FROM message_prep
+     , message_count mc
+ GROUP BY messageYear, isComment, lengthCategory, mc.cnt
+ ORDER BY messageYear DESC, isComment ASC, lengthCategory ASC
+;